Use compose-spec parser

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
This commit is contained in:
CrazyMax
2021-07-12 11:20:43 +02:00
parent 67bd6f4dc8
commit ba443811e4
64 changed files with 5883 additions and 1331 deletions

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package interpolation
import (
"os"
"strings"
"github.com/docker/cli/cli/compose/template"
"github.com/pkg/errors"
)
// Options supported by Interpolate
type Options struct {
// LookupValue from a key
LookupValue LookupValue
// TypeCastMapping maps key paths to functions to cast to a type
TypeCastMapping map[Path]Cast
// Substitution function to use
Substitute func(string, template.Mapping) (string, error)
}
// LookupValue is a function which maps from variable names to values.
// Returns the value as a string and a bool indicating whether
// the value is present, to distinguish between an empty string
// and the absence of a value.
type LookupValue func(key string) (string, bool)
// Cast a value to a new type, or return an error if the value can't be cast
type Cast func(value string) (interface{}, error)
// Interpolate replaces variables in a string with the values from a mapping
func Interpolate(config map[string]interface{}, opts Options) (map[string]interface{}, error) {
if opts.LookupValue == nil {
opts.LookupValue = os.LookupEnv
}
if opts.TypeCastMapping == nil {
opts.TypeCastMapping = make(map[Path]Cast)
}
if opts.Substitute == nil {
opts.Substitute = template.Substitute
}
out := map[string]interface{}{}
for key, value := range config {
interpolatedValue, err := recursiveInterpolate(value, NewPath(key), opts)
if err != nil {
return out, err
}
out[key] = interpolatedValue
}
return out, nil
}
func recursiveInterpolate(value interface{}, path Path, opts Options) (interface{}, error) {
switch value := value.(type) {
case string:
newValue, err := opts.Substitute(value, template.Mapping(opts.LookupValue))
if err != nil || newValue == value {
return value, newPathError(path, err)
}
caster, ok := opts.getCasterForPath(path)
if !ok {
return newValue, nil
}
casted, err := caster(newValue)
return casted, newPathError(path, errors.Wrap(err, "failed to cast to expected type"))
case map[string]interface{}:
out := map[string]interface{}{}
for key, elem := range value {
interpolatedElem, err := recursiveInterpolate(elem, path.Next(key), opts)
if err != nil {
return nil, err
}
out[key] = interpolatedElem
}
return out, nil
case []interface{}:
out := make([]interface{}, len(value))
for i, elem := range value {
interpolatedElem, err := recursiveInterpolate(elem, path.Next(PathMatchList), opts)
if err != nil {
return nil, err
}
out[i] = interpolatedElem
}
return out, nil
default:
return value, nil
}
}
func newPathError(path Path, err error) error {
switch err := err.(type) {
case nil:
return nil
case *template.InvalidTemplateError:
return errors.Errorf(
"invalid interpolation format for %s: %#v. You may need to escape any $ with another $.",
path, err.Template)
default:
return errors.Wrapf(err, "error while interpolating %s", path)
}
}
const pathSeparator = "."
// PathMatchAll is a token used as part of a Path to match any key at that level
// in the nested structure
const PathMatchAll = "*"
// PathMatchList is a token used as part of a Path to match items in a list
const PathMatchList = "[]"
// Path is a dotted path of keys to a value in a nested mapping structure. A *
// section in a path will match any key in the mapping structure.
type Path string
// NewPath returns a new Path
func NewPath(items ...string) Path {
return Path(strings.Join(items, pathSeparator))
}
// Next returns a new path by append part to the current path
func (p Path) Next(part string) Path {
return Path(string(p) + pathSeparator + part)
}
func (p Path) parts() []string {
return strings.Split(string(p), pathSeparator)
}
func (p Path) matches(pattern Path) bool {
patternParts := pattern.parts()
parts := p.parts()
if len(patternParts) != len(parts) {
return false
}
for index, part := range parts {
switch patternParts[index] {
case PathMatchAll, part:
continue
default:
return false
}
}
return true
}
func (o Options) getCasterForPath(path Path) (Cast, bool) {
for pattern, caster := range o.TypeCastMapping {
if path.matches(pattern) {
return caster, true
}
}
return nil, false
}

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# passed through
FOO=foo_from_env_file
# overridden in example2.env
BAR=bar_from_env_file
# overridden in full-example.yml
BAZ=baz_from_env_file

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BAR=bar_from_env_file_2
# overridden in configDetails.Environment
QUX=quz_from_env_file_2

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version: "3.9"
services:
foo:
build:
context: ./dir
dockerfile: Dockerfile
args:
foo: bar
target: foo
network: foo
cache_from:
- foo
- bar
extra_hosts:
- "ipv4.example.com:127.0.0.1"
- "ipv6.example.com:::1"
labels: [FOO=BAR]
cap_add:
- ALL
cap_drop:
- NET_ADMIN
- SYS_ADMIN
cgroup_parent: m-executor-abcd
# String or list
command: bundle exec thin -p 3000
# command: ["bundle", "exec", "thin", "-p", "3000"]
configs:
- config1
- source: config2
target: /my_config
uid: '103'
gid: '103'
mode: 0440
container_name: my-web-container
depends_on:
- db
- redis
deploy:
mode: replicated
replicas: 6
labels: [FOO=BAR]
rollback_config:
parallelism: 3
delay: 10s
failure_action: continue
monitor: 60s
max_failure_ratio: 0.3
order: start-first
update_config:
parallelism: 3
delay: 10s
failure_action: continue
monitor: 60s
max_failure_ratio: 0.3
order: start-first
resources:
limits:
cpus: '0.001'
memory: 50M
pids: 100
reservations:
cpus: '0.0001'
memory: 20M
generic_resources:
- discrete_resource_spec:
kind: 'gpu'
value: 2
- discrete_resource_spec:
kind: 'ssd'
value: 1
restart_policy:
condition: on-failure
delay: 5s
max_attempts: 3
window: 120s
placement:
constraints: [node=foo]
max_replicas_per_node: 5
preferences:
- spread: node.labels.az
endpoint_mode: dnsrr
devices:
- "/dev/ttyUSB0:/dev/ttyUSB0"
# String or list
# dns: 8.8.8.8
dns:
- 8.8.8.8
- 9.9.9.9
# String or list
# dns_search: example.com
dns_search:
- dc1.example.com
- dc2.example.com
domainname: foo.com
# String or list
# entrypoint: /code/entrypoint.sh -p 3000
entrypoint: ["/code/entrypoint.sh", "-p", "3000"]
# String or list
# env_file: .env
env_file:
- ./example1.env
- ./example2.env
# Mapping or list
# Mapping values can be strings, numbers or null
# Booleans are not allowed - must be quoted
environment:
BAZ: baz_from_service_def
QUX:
# environment:
# - RACK_ENV=development
# - SHOW=true
# - SESSION_SECRET
# Items can be strings or numbers
expose:
- "3000"
- 8000
external_links:
- redis_1
- project_db_1:mysql
- project_db_1:postgresql
# Mapping or list
# Mapping values must be strings
# extra_hosts:
# somehost: "162.242.195.82"
# otherhost: "50.31.209.229"
# host.docker.internal: "host-gateway"
extra_hosts:
- "somehost:162.242.195.82"
- "otherhost:50.31.209.229"
- "host.docker.internal:host-gateway"
hostname: foo
healthcheck:
test: echo "hello world"
interval: 10s
timeout: 1s
retries: 5
start_period: 15s
# Any valid image reference - repo, tag, id, sha
image: redis
# image: ubuntu:14.04
# image: tutum/influxdb
# image: example-registry.com:4000/postgresql
# image: a4bc65fd
# image: busybox@sha256:38a203e1986cf79639cfb9b2e1d6e773de84002feea2d4eb006b52004ee8502d
ipc: host
# Mapping or list
# Mapping values can be strings, numbers or null
labels:
com.example.description: "Accounting webapp"
com.example.number: 42
com.example.empty-label:
# labels:
# - "com.example.description=Accounting webapp"
# - "com.example.number=42"
# - "com.example.empty-label"
links:
- db
- db:database
- redis
logging:
driver: syslog
options:
syslog-address: "tcp://192.168.0.42:123"
mac_address: 02:42:ac:11:65:43
# network_mode: "bridge"
# network_mode: "host"
# network_mode: "none"
# Use the network mode of an arbitrary container from another service
# network_mode: "service:db"
# Use the network mode of another container, specified by name or id
# network_mode: "container:some-container"
network_mode: "container:0cfeab0f748b9a743dc3da582046357c6ef497631c1a016d28d2bf9b4f899f7b"
networks:
some-network:
aliases:
- alias1
- alias3
other-network:
ipv4_address: 172.16.238.10
ipv6_address: 2001:3984:3989::10
other-other-network:
pid: "host"
ports:
- 3000
- "3001-3005"
- "8000:8000"
- "9090-9091:8080-8081"
- "49100:22"
- "127.0.0.1:8001:8001"
- "127.0.0.1:5000-5010:5000-5010"
privileged: true
read_only: true
restart: always
secrets:
- secret1
- source: secret2
target: my_secret
uid: '103'
gid: '103'
mode: 0440
security_opt:
- label=level:s0:c100,c200
- label=type:svirt_apache_t
stdin_open: true
stop_grace_period: 20s
stop_signal: SIGUSR1
sysctls:
net.core.somaxconn: 1024
net.ipv4.tcp_syncookies: 0
# String or list
# tmpfs: /run
tmpfs:
- /run
- /tmp
tty: true
ulimits:
# Single number or mapping with soft + hard limits
nproc: 65535
nofile:
soft: 20000
hard: 40000
user: someone
volumes:
# Just specify a path and let the Engine create a volume
- /var/lib/mysql
# Specify an absolute path mapping
- /opt/data:/var/lib/mysql
# Path on the host, relative to the Compose file
- .:/code
- ./static:/var/www/html
# User-relative path
- ~/configs:/etc/configs/:ro
# Named volume
- datavolume:/var/lib/mysql
- type: bind
source: ./opt
target: /opt
consistency: cached
- type: tmpfs
target: /opt
tmpfs:
size: 10000
working_dir: /code
x-bar: baz
x-foo: bar
networks:
# Entries can be null, which specifies simply that a network
# called "{project name}_some-network" should be created and
# use the default driver
some-network:
other-network:
driver: overlay
driver_opts:
# Values can be strings or numbers
foo: "bar"
baz: 1
ipam:
driver: overlay
# driver_opts:
# # Values can be strings or numbers
# com.docker.network.enable_ipv6: "true"
# com.docker.network.numeric_value: 1
config:
- subnet: 172.16.238.0/24
# gateway: 172.16.238.1
- subnet: 2001:3984:3989::/64
# gateway: 2001:3984:3989::1
labels:
foo: bar
external-network:
# Specifies that a pre-existing network called "external-network"
# can be referred to within this file as "external-network"
external: true
other-external-network:
# Specifies that a pre-existing network called "my-cool-network"
# can be referred to within this file as "other-external-network"
external:
name: my-cool-network
x-bar: baz
x-foo: bar
volumes:
# Entries can be null, which specifies simply that a volume
# called "{project name}_some-volume" should be created and
# use the default driver
some-volume:
other-volume:
driver: flocker
driver_opts:
# Values can be strings or numbers
foo: "bar"
baz: 1
labels:
foo: bar
another-volume:
name: "user_specified_name"
driver: vsphere
driver_opts:
# Values can be strings or numbers
foo: "bar"
baz: 1
external-volume:
# Specifies that a pre-existing volume called "external-volume"
# can be referred to within this file as "external-volume"
external: true
other-external-volume:
# Specifies that a pre-existing volume called "my-cool-volume"
# can be referred to within this file as "other-external-volume"
# This example uses the deprecated "volume.external.name" (replaced by "volume.name")
external:
name: my-cool-volume
external-volume3:
# Specifies that a pre-existing volume called "this-is-volume3"
# can be referred to within this file as "external-volume3"
name: this-is-volume3
external: true
x-bar: baz
x-foo: bar
configs:
config1:
file: ./config_data
labels:
foo: bar
config2:
external:
name: my_config
config3:
external: true
config4:
name: foo
x-bar: baz
x-foo: bar
secrets:
secret1:
file: ./secret_data
labels:
foo: bar
secret2:
external:
name: my_secret
secret3:
external: true
secret4:
name: bar
x-bar: baz
x-foo: bar
x-bar: baz
x-foo: bar
x-nested:
bar: baz
foo: bar

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package loader
import (
"strconv"
"strings"
interp "github.com/docker/cli/cli/compose/interpolation"
"github.com/pkg/errors"
)
var interpolateTypeCastMapping = map[interp.Path]interp.Cast{
servicePath("configs", interp.PathMatchList, "mode"): toInt,
servicePath("secrets", interp.PathMatchList, "mode"): toInt,
servicePath("healthcheck", "retries"): toInt,
servicePath("healthcheck", "disable"): toBoolean,
servicePath("deploy", "replicas"): toInt,
servicePath("deploy", "update_config", "parallelism"): toInt,
servicePath("deploy", "update_config", "max_failure_ratio"): toFloat,
servicePath("deploy", "rollback_config", "parallelism"): toInt,
servicePath("deploy", "rollback_config", "max_failure_ratio"): toFloat,
servicePath("deploy", "restart_policy", "max_attempts"): toInt,
servicePath("deploy", "placement", "max_replicas_per_node"): toInt,
servicePath("ports", interp.PathMatchList, "target"): toInt,
servicePath("ports", interp.PathMatchList, "published"): toInt,
servicePath("ulimits", interp.PathMatchAll): toInt,
servicePath("ulimits", interp.PathMatchAll, "hard"): toInt,
servicePath("ulimits", interp.PathMatchAll, "soft"): toInt,
servicePath("privileged"): toBoolean,
servicePath("read_only"): toBoolean,
servicePath("stdin_open"): toBoolean,
servicePath("tty"): toBoolean,
servicePath("volumes", interp.PathMatchList, "read_only"): toBoolean,
servicePath("volumes", interp.PathMatchList, "volume", "nocopy"): toBoolean,
iPath("networks", interp.PathMatchAll, "external"): toBoolean,
iPath("networks", interp.PathMatchAll, "internal"): toBoolean,
iPath("networks", interp.PathMatchAll, "attachable"): toBoolean,
iPath("volumes", interp.PathMatchAll, "external"): toBoolean,
iPath("secrets", interp.PathMatchAll, "external"): toBoolean,
iPath("configs", interp.PathMatchAll, "external"): toBoolean,
}
func iPath(parts ...string) interp.Path {
return interp.NewPath(parts...)
}
func servicePath(parts ...string) interp.Path {
return iPath(append([]string{"services", interp.PathMatchAll}, parts...)...)
}
func toInt(value string) (interface{}, error) {
return strconv.Atoi(value)
}
func toFloat(value string) (interface{}, error) {
return strconv.ParseFloat(value, 64)
}
// should match http://yaml.org/type/bool.html
func toBoolean(value string) (interface{}, error) {
switch strings.ToLower(value) {
case "y", "yes", "true", "on":
return true, nil
case "n", "no", "false", "off":
return false, nil
default:
return nil, errors.Errorf("invalid boolean: %s", value)
}
}
func interpolateConfig(configDict map[string]interface{}, opts interp.Options) (map[string]interface{}, error) {
return interp.Interpolate(configDict, opts)
}

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package loader
import (
"fmt"
"path"
"path/filepath"
"reflect"
"sort"
"strings"
"time"
interp "github.com/docker/cli/cli/compose/interpolation"
"github.com/docker/cli/cli/compose/schema"
"github.com/docker/cli/cli/compose/template"
"github.com/docker/cli/cli/compose/types"
"github.com/docker/cli/opts"
"github.com/docker/docker/api/types/versions"
"github.com/docker/go-connections/nat"
units "github.com/docker/go-units"
"github.com/google/shlex"
"github.com/mitchellh/mapstructure"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
yaml "gopkg.in/yaml.v2"
)
// Options supported by Load
type Options struct {
// Skip schema validation
SkipValidation bool
// Skip interpolation
SkipInterpolation bool
// Interpolation options
Interpolate *interp.Options
// Discard 'env_file' entries after resolving to 'environment' section
discardEnvFiles bool
}
// WithDiscardEnvFiles sets the Options to discard the `env_file` section after resolving to
// the `environment` section
func WithDiscardEnvFiles(opts *Options) {
opts.discardEnvFiles = true
}
// ParseYAML reads the bytes from a file, parses the bytes into a mapping
// structure, and returns it.
func ParseYAML(source []byte) (map[string]interface{}, error) {
var cfg interface{}
if err := yaml.Unmarshal(source, &cfg); err != nil {
return nil, err
}
cfgMap, ok := cfg.(map[interface{}]interface{})
if !ok {
return nil, errors.Errorf("Top-level object must be a mapping")
}
converted, err := convertToStringKeysRecursive(cfgMap, "")
if err != nil {
return nil, err
}
return converted.(map[string]interface{}), nil
}
// Load reads a ConfigDetails and returns a fully loaded configuration
func Load(configDetails types.ConfigDetails, options ...func(*Options)) (*types.Config, error) {
if len(configDetails.ConfigFiles) < 1 {
return nil, errors.Errorf("No files specified")
}
opts := &Options{
Interpolate: &interp.Options{
Substitute: template.Substitute,
LookupValue: configDetails.LookupEnv,
TypeCastMapping: interpolateTypeCastMapping,
},
}
for _, op := range options {
op(opts)
}
configs := []*types.Config{}
var err error
for _, file := range configDetails.ConfigFiles {
configDict := file.Config
version := schema.Version(configDict)
if configDetails.Version == "" {
configDetails.Version = version
}
if configDetails.Version != version {
return nil, errors.Errorf("version mismatched between two composefiles : %v and %v", configDetails.Version, version)
}
if err := validateForbidden(configDict); err != nil {
return nil, err
}
if !opts.SkipInterpolation {
configDict, err = interpolateConfig(configDict, *opts.Interpolate)
if err != nil {
return nil, err
}
}
if !opts.SkipValidation {
if err := schema.Validate(configDict, configDetails.Version); err != nil {
return nil, err
}
}
cfg, err := loadSections(configDict, configDetails)
if err != nil {
return nil, err
}
cfg.Filename = file.Filename
if opts.discardEnvFiles {
for i := range cfg.Services {
cfg.Services[i].EnvFile = nil
}
}
configs = append(configs, cfg)
}
return merge(configs)
}
func validateForbidden(configDict map[string]interface{}) error {
servicesDict, ok := configDict["services"].(map[string]interface{})
if !ok {
return nil
}
forbidden := getProperties(servicesDict, types.ForbiddenProperties)
if len(forbidden) > 0 {
return &ForbiddenPropertiesError{Properties: forbidden}
}
return nil
}
func loadSections(config map[string]interface{}, configDetails types.ConfigDetails) (*types.Config, error) {
var err error
cfg := types.Config{
Version: schema.Version(config),
}
var loaders = []struct {
key string
fnc func(config map[string]interface{}) error
}{
{
key: "services",
fnc: func(config map[string]interface{}) error {
cfg.Services, err = LoadServices(config, configDetails.WorkingDir, configDetails.LookupEnv)
return err
},
},
{
key: "networks",
fnc: func(config map[string]interface{}) error {
cfg.Networks, err = LoadNetworks(config, configDetails.Version)
return err
},
},
{
key: "volumes",
fnc: func(config map[string]interface{}) error {
cfg.Volumes, err = LoadVolumes(config, configDetails.Version)
return err
},
},
{
key: "secrets",
fnc: func(config map[string]interface{}) error {
cfg.Secrets, err = LoadSecrets(config, configDetails)
return err
},
},
{
key: "configs",
fnc: func(config map[string]interface{}) error {
cfg.Configs, err = LoadConfigObjs(config, configDetails)
return err
},
},
}
for _, loader := range loaders {
if err := loader.fnc(getSection(config, loader.key)); err != nil {
return nil, err
}
}
cfg.Extras = getExtras(config)
return &cfg, nil
}
func getSection(config map[string]interface{}, key string) map[string]interface{} {
section, ok := config[key]
if !ok {
return make(map[string]interface{})
}
return section.(map[string]interface{})
}
// GetUnsupportedProperties returns the list of any unsupported properties that are
// used in the Compose files.
func GetUnsupportedProperties(configDicts ...map[string]interface{}) []string {
unsupported := map[string]bool{}
for _, configDict := range configDicts {
for _, service := range getServices(configDict) {
serviceDict := service.(map[string]interface{})
for _, property := range types.UnsupportedProperties {
if _, isSet := serviceDict[property]; isSet {
unsupported[property] = true
}
}
}
}
return sortedKeys(unsupported)
}
func sortedKeys(set map[string]bool) []string {
var keys []string
for key := range set {
keys = append(keys, key)
}
sort.Strings(keys)
return keys
}
// GetDeprecatedProperties returns the list of any deprecated properties that
// are used in the compose files.
func GetDeprecatedProperties(configDicts ...map[string]interface{}) map[string]string {
deprecated := map[string]string{}
for _, configDict := range configDicts {
deprecatedProperties := getProperties(getServices(configDict), types.DeprecatedProperties)
for key, value := range deprecatedProperties {
deprecated[key] = value
}
}
return deprecated
}
func getProperties(services map[string]interface{}, propertyMap map[string]string) map[string]string {
output := map[string]string{}
for _, service := range services {
if serviceDict, ok := service.(map[string]interface{}); ok {
for property, description := range propertyMap {
if _, isSet := serviceDict[property]; isSet {
output[property] = description
}
}
}
}
return output
}
// ForbiddenPropertiesError is returned when there are properties in the Compose
// file that are forbidden.
type ForbiddenPropertiesError struct {
Properties map[string]string
}
func (e *ForbiddenPropertiesError) Error() string {
return "Configuration contains forbidden properties"
}
func getServices(configDict map[string]interface{}) map[string]interface{} {
if services, ok := configDict["services"]; ok {
if servicesDict, ok := services.(map[string]interface{}); ok {
return servicesDict
}
}
return map[string]interface{}{}
}
// Transform converts the source into the target struct with compose types transformer
// and the specified transformers if any.
func Transform(source interface{}, target interface{}, additionalTransformers ...Transformer) error {
data := mapstructure.Metadata{}
config := &mapstructure.DecoderConfig{
DecodeHook: mapstructure.ComposeDecodeHookFunc(
createTransformHook(additionalTransformers...),
mapstructure.StringToTimeDurationHookFunc()),
Result: target,
Metadata: &data,
}
decoder, err := mapstructure.NewDecoder(config)
if err != nil {
return err
}
return decoder.Decode(source)
}
// TransformerFunc defines a function to perform the actual transformation
type TransformerFunc func(interface{}) (interface{}, error)
// Transformer defines a map to type transformer
type Transformer struct {
TypeOf reflect.Type
Func TransformerFunc
}
func createTransformHook(additionalTransformers ...Transformer) mapstructure.DecodeHookFuncType {
transforms := map[reflect.Type]func(interface{}) (interface{}, error){
reflect.TypeOf(types.External{}): transformExternal,
reflect.TypeOf(types.HealthCheckTest{}): transformHealthCheckTest,
reflect.TypeOf(types.ShellCommand{}): transformShellCommand,
reflect.TypeOf(types.StringList{}): transformStringList,
reflect.TypeOf(map[string]string{}): transformMapStringString,
reflect.TypeOf(types.UlimitsConfig{}): transformUlimits,
reflect.TypeOf(types.UnitBytes(0)): transformSize,
reflect.TypeOf([]types.ServicePortConfig{}): transformServicePort,
reflect.TypeOf(types.ServiceSecretConfig{}): transformStringSourceMap,
reflect.TypeOf(types.ServiceConfigObjConfig{}): transformStringSourceMap,
reflect.TypeOf(types.StringOrNumberList{}): transformStringOrNumberList,
reflect.TypeOf(map[string]*types.ServiceNetworkConfig{}): transformServiceNetworkMap,
reflect.TypeOf(types.Mapping{}): transformMappingOrListFunc("=", false),
reflect.TypeOf(types.MappingWithEquals{}): transformMappingOrListFunc("=", true),
reflect.TypeOf(types.Labels{}): transformMappingOrListFunc("=", false),
reflect.TypeOf(types.MappingWithColon{}): transformMappingOrListFunc(":", false),
reflect.TypeOf(types.HostsList{}): transformListOrMappingFunc(":", false),
reflect.TypeOf(types.ServiceVolumeConfig{}): transformServiceVolumeConfig,
reflect.TypeOf(types.BuildConfig{}): transformBuildConfig,
reflect.TypeOf(types.Duration(0)): transformStringToDuration,
}
for _, transformer := range additionalTransformers {
transforms[transformer.TypeOf] = transformer.Func
}
return func(_ reflect.Type, target reflect.Type, data interface{}) (interface{}, error) {
transform, ok := transforms[target]
if !ok {
return data, nil
}
return transform(data)
}
}
// keys needs to be converted to strings for jsonschema
func convertToStringKeysRecursive(value interface{}, keyPrefix string) (interface{}, error) {
if mapping, ok := value.(map[interface{}]interface{}); ok {
dict := make(map[string]interface{})
for key, entry := range mapping {
str, ok := key.(string)
if !ok {
return nil, formatInvalidKeyError(keyPrefix, key)
}
var newKeyPrefix string
if keyPrefix == "" {
newKeyPrefix = str
} else {
newKeyPrefix = fmt.Sprintf("%s.%s", keyPrefix, str)
}
convertedEntry, err := convertToStringKeysRecursive(entry, newKeyPrefix)
if err != nil {
return nil, err
}
dict[str] = convertedEntry
}
return dict, nil
}
if list, ok := value.([]interface{}); ok {
var convertedList []interface{}
for index, entry := range list {
newKeyPrefix := fmt.Sprintf("%s[%d]", keyPrefix, index)
convertedEntry, err := convertToStringKeysRecursive(entry, newKeyPrefix)
if err != nil {
return nil, err
}
convertedList = append(convertedList, convertedEntry)
}
return convertedList, nil
}
return value, nil
}
func formatInvalidKeyError(keyPrefix string, key interface{}) error {
var location string
if keyPrefix == "" {
location = "at top level"
} else {
location = fmt.Sprintf("in %s", keyPrefix)
}
return errors.Errorf("Non-string key %s: %#v", location, key)
}
// LoadServices produces a ServiceConfig map from a compose file Dict
// the servicesDict is not validated if directly used. Use Load() to enable validation
func LoadServices(servicesDict map[string]interface{}, workingDir string, lookupEnv template.Mapping) ([]types.ServiceConfig, error) {
var services []types.ServiceConfig
for name, serviceDef := range servicesDict {
serviceConfig, err := LoadService(name, serviceDef.(map[string]interface{}), workingDir, lookupEnv)
if err != nil {
return nil, err
}
services = append(services, *serviceConfig)
}
return services, nil
}
// LoadService produces a single ServiceConfig from a compose file Dict
// the serviceDict is not validated if directly used. Use Load() to enable validation
func LoadService(name string, serviceDict map[string]interface{}, workingDir string, lookupEnv template.Mapping) (*types.ServiceConfig, error) {
serviceConfig := &types.ServiceConfig{}
if err := Transform(serviceDict, serviceConfig); err != nil {
return nil, err
}
serviceConfig.Name = name
if err := resolveEnvironment(serviceConfig, workingDir, lookupEnv); err != nil {
return nil, err
}
if err := resolveVolumePaths(serviceConfig.Volumes, workingDir, lookupEnv); err != nil {
return nil, err
}
serviceConfig.Extras = getExtras(serviceDict)
return serviceConfig, nil
}
func loadExtras(name string, source map[string]interface{}) map[string]interface{} {
if dict, ok := source[name].(map[string]interface{}); ok {
return getExtras(dict)
}
return nil
}
func getExtras(dict map[string]interface{}) map[string]interface{} {
extras := map[string]interface{}{}
for key, value := range dict {
if strings.HasPrefix(key, "x-") {
extras[key] = value
}
}
if len(extras) == 0 {
return nil
}
return extras
}
func updateEnvironment(environment map[string]*string, vars map[string]*string, lookupEnv template.Mapping) {
for k, v := range vars {
interpolatedV, ok := lookupEnv(k)
if (v == nil || *v == "") && ok {
// lookupEnv is prioritized over vars
environment[k] = &interpolatedV
} else {
environment[k] = v
}
}
}
func resolveEnvironment(serviceConfig *types.ServiceConfig, workingDir string, lookupEnv template.Mapping) error {
environment := make(map[string]*string)
if len(serviceConfig.EnvFile) > 0 {
var envVars []string
for _, file := range serviceConfig.EnvFile {
filePath := absPath(workingDir, file)
fileVars, err := opts.ParseEnvFile(filePath)
if err != nil {
return err
}
envVars = append(envVars, fileVars...)
}
updateEnvironment(environment,
opts.ConvertKVStringsToMapWithNil(envVars), lookupEnv)
}
updateEnvironment(environment, serviceConfig.Environment, lookupEnv)
serviceConfig.Environment = environment
return nil
}
func resolveVolumePaths(volumes []types.ServiceVolumeConfig, workingDir string, lookupEnv template.Mapping) error {
for i, volume := range volumes {
if volume.Type != "bind" {
continue
}
if volume.Source == "" {
return errors.New(`invalid mount config for type "bind": field Source must not be empty`)
}
filePath := expandUser(volume.Source, lookupEnv)
// Check if source is an absolute path (either Unix or Windows), to
// handle a Windows client with a Unix daemon or vice-versa.
//
// Note that this is not required for Docker for Windows when specifying
// a local Windows path, because Docker for Windows translates the Windows
// path into a valid path within the VM.
if !path.IsAbs(filePath) && !isAbs(filePath) {
filePath = absPath(workingDir, filePath)
}
volume.Source = filePath
volumes[i] = volume
}
return nil
}
// TODO: make this more robust
func expandUser(path string, lookupEnv template.Mapping) string {
if strings.HasPrefix(path, "~") {
home, ok := lookupEnv("HOME")
if !ok {
logrus.Warn("cannot expand '~', because the environment lacks HOME")
return path
}
return strings.Replace(path, "~", home, 1)
}
return path
}
func transformUlimits(data interface{}) (interface{}, error) {
switch value := data.(type) {
case int:
return types.UlimitsConfig{Single: value}, nil
case map[string]interface{}:
ulimit := types.UlimitsConfig{}
ulimit.Soft = value["soft"].(int)
ulimit.Hard = value["hard"].(int)
return ulimit, nil
default:
return data, errors.Errorf("invalid type %T for ulimits", value)
}
}
// LoadNetworks produces a NetworkConfig map from a compose file Dict
// the source Dict is not validated if directly used. Use Load() to enable validation
func LoadNetworks(source map[string]interface{}, version string) (map[string]types.NetworkConfig, error) {
networks := make(map[string]types.NetworkConfig)
err := Transform(source, &networks)
if err != nil {
return networks, err
}
for name, network := range networks {
if !network.External.External {
continue
}
switch {
case network.External.Name != "":
if network.Name != "" {
return nil, errors.Errorf("network %s: network.external.name and network.name conflict; only use network.name", name)
}
if versions.GreaterThanOrEqualTo(version, "3.5") {
logrus.Warnf("network %s: network.external.name is deprecated in favor of network.name", name)
}
network.Name = network.External.Name
network.External.Name = ""
case network.Name == "":
network.Name = name
}
network.Extras = loadExtras(name, source)
networks[name] = network
}
return networks, nil
}
func externalVolumeError(volume, key string) error {
return errors.Errorf(
"conflicting parameters \"external\" and %q specified for volume %q",
key, volume)
}
// LoadVolumes produces a VolumeConfig map from a compose file Dict
// the source Dict is not validated if directly used. Use Load() to enable validation
func LoadVolumes(source map[string]interface{}, version string) (map[string]types.VolumeConfig, error) {
volumes := make(map[string]types.VolumeConfig)
if err := Transform(source, &volumes); err != nil {
return volumes, err
}
for name, volume := range volumes {
if !volume.External.External {
continue
}
switch {
case volume.Driver != "":
return nil, externalVolumeError(name, "driver")
case len(volume.DriverOpts) > 0:
return nil, externalVolumeError(name, "driver_opts")
case len(volume.Labels) > 0:
return nil, externalVolumeError(name, "labels")
case volume.External.Name != "":
if volume.Name != "" {
return nil, errors.Errorf("volume %s: volume.external.name and volume.name conflict; only use volume.name", name)
}
if versions.GreaterThanOrEqualTo(version, "3.4") {
logrus.Warnf("volume %s: volume.external.name is deprecated in favor of volume.name", name)
}
volume.Name = volume.External.Name
volume.External.Name = ""
case volume.Name == "":
volume.Name = name
}
volume.Extras = loadExtras(name, source)
volumes[name] = volume
}
return volumes, nil
}
// LoadSecrets produces a SecretConfig map from a compose file Dict
// the source Dict is not validated if directly used. Use Load() to enable validation
func LoadSecrets(source map[string]interface{}, details types.ConfigDetails) (map[string]types.SecretConfig, error) {
secrets := make(map[string]types.SecretConfig)
if err := Transform(source, &secrets); err != nil {
return secrets, err
}
for name, secret := range secrets {
obj, err := loadFileObjectConfig(name, "secret", types.FileObjectConfig(secret), details)
if err != nil {
return nil, err
}
secretConfig := types.SecretConfig(obj)
secretConfig.Extras = loadExtras(name, source)
secrets[name] = secretConfig
}
return secrets, nil
}
// LoadConfigObjs produces a ConfigObjConfig map from a compose file Dict
// the source Dict is not validated if directly used. Use Load() to enable validation
func LoadConfigObjs(source map[string]interface{}, details types.ConfigDetails) (map[string]types.ConfigObjConfig, error) {
configs := make(map[string]types.ConfigObjConfig)
if err := Transform(source, &configs); err != nil {
return configs, err
}
for name, config := range configs {
obj, err := loadFileObjectConfig(name, "config", types.FileObjectConfig(config), details)
if err != nil {
return nil, err
}
configConfig := types.ConfigObjConfig(obj)
configConfig.Extras = loadExtras(name, source)
configs[name] = configConfig
}
return configs, nil
}
func loadFileObjectConfig(name string, objType string, obj types.FileObjectConfig, details types.ConfigDetails) (types.FileObjectConfig, error) {
// if "external: true"
switch {
case obj.External.External:
// handle deprecated external.name
if obj.External.Name != "" {
if obj.Name != "" {
return obj, errors.Errorf("%[1]s %[2]s: %[1]s.external.name and %[1]s.name conflict; only use %[1]s.name", objType, name)
}
if versions.GreaterThanOrEqualTo(details.Version, "3.5") {
logrus.Warnf("%[1]s %[2]s: %[1]s.external.name is deprecated in favor of %[1]s.name", objType, name)
}
obj.Name = obj.External.Name
obj.External.Name = ""
} else {
if obj.Name == "" {
obj.Name = name
}
}
// if not "external: true"
case obj.Driver != "":
if obj.File != "" {
return obj, errors.Errorf("%[1]s %[2]s: %[1]s.driver and %[1]s.file conflict; only use %[1]s.driver", objType, name)
}
default:
obj.File = absPath(details.WorkingDir, obj.File)
}
return obj, nil
}
func absPath(workingDir string, filePath string) string {
if filepath.IsAbs(filePath) {
return filePath
}
return filepath.Join(workingDir, filePath)
}
var transformMapStringString TransformerFunc = func(data interface{}) (interface{}, error) {
switch value := data.(type) {
case map[string]interface{}:
return toMapStringString(value, false), nil
case map[string]string:
return value, nil
default:
return data, errors.Errorf("invalid type %T for map[string]string", value)
}
}
var transformExternal TransformerFunc = func(data interface{}) (interface{}, error) {
switch value := data.(type) {
case bool:
return map[string]interface{}{"external": value}, nil
case map[string]interface{}:
return map[string]interface{}{"external": true, "name": value["name"]}, nil
default:
return data, errors.Errorf("invalid type %T for external", value)
}
}
var transformServicePort TransformerFunc = func(data interface{}) (interface{}, error) {
switch entries := data.(type) {
case []interface{}:
// We process the list instead of individual items here.
// The reason is that one entry might be mapped to multiple ServicePortConfig.
// Therefore we take an input of a list and return an output of a list.
ports := []interface{}{}
for _, entry := range entries {
switch value := entry.(type) {
case int:
v, err := toServicePortConfigs(fmt.Sprint(value))
if err != nil {
return data, err
}
ports = append(ports, v...)
case string:
v, err := toServicePortConfigs(value)
if err != nil {
return data, err
}
ports = append(ports, v...)
case map[string]interface{}:
ports = append(ports, value)
default:
return data, errors.Errorf("invalid type %T for port", value)
}
}
return ports, nil
default:
return data, errors.Errorf("invalid type %T for port", entries)
}
}
var transformStringSourceMap TransformerFunc = func(data interface{}) (interface{}, error) {
switch value := data.(type) {
case string:
return map[string]interface{}{"source": value}, nil
case map[string]interface{}:
return data, nil
default:
return data, errors.Errorf("invalid type %T for secret", value)
}
}
var transformBuildConfig TransformerFunc = func(data interface{}) (interface{}, error) {
switch value := data.(type) {
case string:
return map[string]interface{}{"context": value}, nil
case map[string]interface{}:
return data, nil
default:
return data, errors.Errorf("invalid type %T for service build", value)
}
}
var transformServiceVolumeConfig TransformerFunc = func(data interface{}) (interface{}, error) {
switch value := data.(type) {
case string:
return ParseVolume(value)
case map[string]interface{}:
return data, nil
default:
return data, errors.Errorf("invalid type %T for service volume", value)
}
}
var transformServiceNetworkMap TransformerFunc = func(value interface{}) (interface{}, error) {
if list, ok := value.([]interface{}); ok {
mapValue := map[interface{}]interface{}{}
for _, name := range list {
mapValue[name] = nil
}
return mapValue, nil
}
return value, nil
}
var transformStringOrNumberList TransformerFunc = func(value interface{}) (interface{}, error) {
list := value.([]interface{})
result := make([]string, len(list))
for i, item := range list {
result[i] = fmt.Sprint(item)
}
return result, nil
}
var transformStringList TransformerFunc = func(data interface{}) (interface{}, error) {
switch value := data.(type) {
case string:
return []string{value}, nil
case []interface{}:
return value, nil
default:
return data, errors.Errorf("invalid type %T for string list", value)
}
}
func transformMappingOrListFunc(sep string, allowNil bool) TransformerFunc {
return func(data interface{}) (interface{}, error) {
return transformMappingOrList(data, sep, allowNil), nil
}
}
func transformListOrMappingFunc(sep string, allowNil bool) TransformerFunc {
return func(data interface{}) (interface{}, error) {
return transformListOrMapping(data, sep, allowNil), nil
}
}
func transformListOrMapping(listOrMapping interface{}, sep string, allowNil bool) interface{} {
switch value := listOrMapping.(type) {
case map[string]interface{}:
return toStringList(value, sep, allowNil)
case []interface{}:
return listOrMapping
}
panic(errors.Errorf("expected a map or a list, got %T: %#v", listOrMapping, listOrMapping))
}
func transformMappingOrList(mappingOrList interface{}, sep string, allowNil bool) interface{} {
switch value := mappingOrList.(type) {
case map[string]interface{}:
return toMapStringString(value, allowNil)
case ([]interface{}):
result := make(map[string]interface{})
for _, value := range value {
parts := strings.SplitN(value.(string), sep, 2)
key := parts[0]
switch {
case len(parts) == 1 && allowNil:
result[key] = nil
case len(parts) == 1 && !allowNil:
result[key] = ""
default:
result[key] = parts[1]
}
}
return result
}
panic(errors.Errorf("expected a map or a list, got %T: %#v", mappingOrList, mappingOrList))
}
var transformShellCommand TransformerFunc = func(value interface{}) (interface{}, error) {
if str, ok := value.(string); ok {
return shlex.Split(str)
}
return value, nil
}
var transformHealthCheckTest TransformerFunc = func(data interface{}) (interface{}, error) {
switch value := data.(type) {
case string:
return append([]string{"CMD-SHELL"}, value), nil
case []interface{}:
return value, nil
default:
return value, errors.Errorf("invalid type %T for healthcheck.test", value)
}
}
var transformSize TransformerFunc = func(value interface{}) (interface{}, error) {
switch value := value.(type) {
case int:
return int64(value), nil
case string:
return units.RAMInBytes(value)
}
panic(errors.Errorf("invalid type for size %T", value))
}
var transformStringToDuration TransformerFunc = func(value interface{}) (interface{}, error) {
switch value := value.(type) {
case string:
d, err := time.ParseDuration(value)
if err != nil {
return value, err
}
return types.Duration(d), nil
default:
return value, errors.Errorf("invalid type %T for duration", value)
}
}
func toServicePortConfigs(value string) ([]interface{}, error) {
var portConfigs []interface{}
ports, portBindings, err := nat.ParsePortSpecs([]string{value})
if err != nil {
return nil, err
}
// We need to sort the key of the ports to make sure it is consistent
keys := []string{}
for port := range ports {
keys = append(keys, string(port))
}
sort.Strings(keys)
for _, key := range keys {
// Reuse ConvertPortToPortConfig so that it is consistent
portConfig, err := opts.ConvertPortToPortConfig(nat.Port(key), portBindings)
if err != nil {
return nil, err
}
for _, p := range portConfig {
portConfigs = append(portConfigs, types.ServicePortConfig{
Protocol: string(p.Protocol),
Target: p.TargetPort,
Published: p.PublishedPort,
Mode: string(p.PublishMode),
})
}
}
return portConfigs, nil
}
func toMapStringString(value map[string]interface{}, allowNil bool) map[string]interface{} {
output := make(map[string]interface{})
for key, value := range value {
output[key] = toString(value, allowNil)
}
return output
}
func toString(value interface{}, allowNil bool) interface{} {
switch {
case value != nil:
return fmt.Sprint(value)
case allowNil:
return nil
default:
return ""
}
}
func toStringList(value map[string]interface{}, separator string, allowNil bool) []string {
output := []string{}
for key, value := range value {
if value == nil && !allowNil {
continue
}
output = append(output, fmt.Sprintf("%s%s%s", key, separator, value))
}
sort.Strings(output)
return output
}

View File

@ -1,258 +0,0 @@
package loader
import (
"reflect"
"sort"
"github.com/docker/cli/cli/compose/types"
"github.com/imdario/mergo"
"github.com/pkg/errors"
)
type specials struct {
m map[reflect.Type]func(dst, src reflect.Value) error
}
func (s *specials) Transformer(t reflect.Type) func(dst, src reflect.Value) error {
if fn, ok := s.m[t]; ok {
return fn
}
return nil
}
func merge(configs []*types.Config) (*types.Config, error) {
base := configs[0]
for _, override := range configs[1:] {
var err error
base.Services, err = mergeServices(base.Services, override.Services)
if err != nil {
return base, errors.Wrapf(err, "cannot merge services from %s", override.Filename)
}
base.Volumes, err = mergeVolumes(base.Volumes, override.Volumes)
if err != nil {
return base, errors.Wrapf(err, "cannot merge volumes from %s", override.Filename)
}
base.Networks, err = mergeNetworks(base.Networks, override.Networks)
if err != nil {
return base, errors.Wrapf(err, "cannot merge networks from %s", override.Filename)
}
base.Secrets, err = mergeSecrets(base.Secrets, override.Secrets)
if err != nil {
return base, errors.Wrapf(err, "cannot merge secrets from %s", override.Filename)
}
base.Configs, err = mergeConfigs(base.Configs, override.Configs)
if err != nil {
return base, errors.Wrapf(err, "cannot merge configs from %s", override.Filename)
}
}
return base, nil
}
func mergeServices(base, override []types.ServiceConfig) ([]types.ServiceConfig, error) {
baseServices := mapByName(base)
overrideServices := mapByName(override)
specials := &specials{
m: map[reflect.Type]func(dst, src reflect.Value) error{
reflect.TypeOf(&types.LoggingConfig{}): safelyMerge(mergeLoggingConfig),
reflect.TypeOf([]types.ServicePortConfig{}): mergeSlice(toServicePortConfigsMap, toServicePortConfigsSlice),
reflect.TypeOf([]types.ServiceSecretConfig{}): mergeSlice(toServiceSecretConfigsMap, toServiceSecretConfigsSlice),
reflect.TypeOf([]types.ServiceConfigObjConfig{}): mergeSlice(toServiceConfigObjConfigsMap, toSServiceConfigObjConfigsSlice),
reflect.TypeOf(&types.UlimitsConfig{}): mergeUlimitsConfig,
reflect.TypeOf(&types.ServiceNetworkConfig{}): mergeServiceNetworkConfig,
},
}
for name, overrideService := range overrideServices {
overrideService := overrideService
if baseService, ok := baseServices[name]; ok {
if err := mergo.Merge(&baseService, &overrideService, mergo.WithAppendSlice, mergo.WithOverride, mergo.WithTransformers(specials)); err != nil {
return base, errors.Wrapf(err, "cannot merge service %s", name)
}
baseServices[name] = baseService
continue
}
baseServices[name] = overrideService
}
services := []types.ServiceConfig{}
for _, baseService := range baseServices {
services = append(services, baseService)
}
sort.Slice(services, func(i, j int) bool { return services[i].Name < services[j].Name })
return services, nil
}
func toServiceSecretConfigsMap(s interface{}) (map[interface{}]interface{}, error) {
secrets, ok := s.([]types.ServiceSecretConfig)
if !ok {
return nil, errors.Errorf("not a serviceSecretConfig: %v", s)
}
m := map[interface{}]interface{}{}
for _, secret := range secrets {
m[secret.Source] = secret
}
return m, nil
}
func toServiceConfigObjConfigsMap(s interface{}) (map[interface{}]interface{}, error) {
secrets, ok := s.([]types.ServiceConfigObjConfig)
if !ok {
return nil, errors.Errorf("not a serviceSecretConfig: %v", s)
}
m := map[interface{}]interface{}{}
for _, secret := range secrets {
m[secret.Source] = secret
}
return m, nil
}
func toServicePortConfigsMap(s interface{}) (map[interface{}]interface{}, error) {
ports, ok := s.([]types.ServicePortConfig)
if !ok {
return nil, errors.Errorf("not a servicePortConfig slice: %v", s)
}
m := map[interface{}]interface{}{}
for _, p := range ports {
m[p.Published] = p
}
return m, nil
}
func toServiceSecretConfigsSlice(dst reflect.Value, m map[interface{}]interface{}) error {
s := []types.ServiceSecretConfig{}
for _, v := range m {
s = append(s, v.(types.ServiceSecretConfig))
}
sort.Slice(s, func(i, j int) bool { return s[i].Source < s[j].Source })
dst.Set(reflect.ValueOf(s))
return nil
}
func toSServiceConfigObjConfigsSlice(dst reflect.Value, m map[interface{}]interface{}) error {
s := []types.ServiceConfigObjConfig{}
for _, v := range m {
s = append(s, v.(types.ServiceConfigObjConfig))
}
sort.Slice(s, func(i, j int) bool { return s[i].Source < s[j].Source })
dst.Set(reflect.ValueOf(s))
return nil
}
func toServicePortConfigsSlice(dst reflect.Value, m map[interface{}]interface{}) error {
s := []types.ServicePortConfig{}
for _, v := range m {
s = append(s, v.(types.ServicePortConfig))
}
sort.Slice(s, func(i, j int) bool { return s[i].Published < s[j].Published })
dst.Set(reflect.ValueOf(s))
return nil
}
type tomapFn func(s interface{}) (map[interface{}]interface{}, error)
type writeValueFromMapFn func(reflect.Value, map[interface{}]interface{}) error
func safelyMerge(mergeFn func(dst, src reflect.Value) error) func(dst, src reflect.Value) error {
return func(dst, src reflect.Value) error {
if src.IsNil() {
return nil
}
if dst.IsNil() {
dst.Set(src)
return nil
}
return mergeFn(dst, src)
}
}
func mergeSlice(tomap tomapFn, writeValue writeValueFromMapFn) func(dst, src reflect.Value) error {
return func(dst, src reflect.Value) error {
dstMap, err := sliceToMap(tomap, dst)
if err != nil {
return err
}
srcMap, err := sliceToMap(tomap, src)
if err != nil {
return err
}
if err := mergo.Map(&dstMap, srcMap, mergo.WithOverride); err != nil {
return err
}
return writeValue(dst, dstMap)
}
}
func sliceToMap(tomap tomapFn, v reflect.Value) (map[interface{}]interface{}, error) {
// check if valid
if !v.IsValid() {
return nil, errors.Errorf("invalid value : %+v", v)
}
return tomap(v.Interface())
}
func mergeLoggingConfig(dst, src reflect.Value) error {
// Same driver, merging options
if getLoggingDriver(dst.Elem()) == getLoggingDriver(src.Elem()) ||
getLoggingDriver(dst.Elem()) == "" || getLoggingDriver(src.Elem()) == "" {
if getLoggingDriver(dst.Elem()) == "" {
dst.Elem().FieldByName("Driver").SetString(getLoggingDriver(src.Elem()))
}
dstOptions := dst.Elem().FieldByName("Options").Interface().(map[string]string)
srcOptions := src.Elem().FieldByName("Options").Interface().(map[string]string)
return mergo.Merge(&dstOptions, srcOptions, mergo.WithOverride)
}
// Different driver, override with src
dst.Set(src)
return nil
}
//nolint: unparam
func mergeUlimitsConfig(dst, src reflect.Value) error {
if src.Interface() != reflect.Zero(reflect.TypeOf(src.Interface())).Interface() {
dst.Elem().Set(src.Elem())
}
return nil
}
//nolint: unparam
func mergeServiceNetworkConfig(dst, src reflect.Value) error {
if src.Interface() != reflect.Zero(reflect.TypeOf(src.Interface())).Interface() {
dst.Elem().FieldByName("Aliases").Set(src.Elem().FieldByName("Aliases"))
if ipv4 := src.Elem().FieldByName("Ipv4Address").Interface().(string); ipv4 != "" {
dst.Elem().FieldByName("Ipv4Address").SetString(ipv4)
}
if ipv6 := src.Elem().FieldByName("Ipv6Address").Interface().(string); ipv6 != "" {
dst.Elem().FieldByName("Ipv6Address").SetString(ipv6)
}
}
return nil
}
func getLoggingDriver(v reflect.Value) string {
return v.FieldByName("Driver").String()
}
func mapByName(services []types.ServiceConfig) map[string]types.ServiceConfig {
m := map[string]types.ServiceConfig{}
for _, service := range services {
m[service.Name] = service
}
return m
}
func mergeVolumes(base, override map[string]types.VolumeConfig) (map[string]types.VolumeConfig, error) {
err := mergo.Map(&base, &override, mergo.WithOverride)
return base, err
}
func mergeNetworks(base, override map[string]types.NetworkConfig) (map[string]types.NetworkConfig, error) {
err := mergo.Map(&base, &override, mergo.WithOverride)
return base, err
}
func mergeSecrets(base, override map[string]types.SecretConfig) (map[string]types.SecretConfig, error) {
err := mergo.Map(&base, &override, mergo.WithOverride)
return base, err
}
func mergeConfigs(base, override map[string]types.ConfigObjConfig) (map[string]types.ConfigObjConfig, error) {
err := mergo.Map(&base, &override, mergo.WithOverride)
return base, err
}

View File

@ -1,125 +0,0 @@
package loader
import (
"strings"
"unicode"
"unicode/utf8"
"github.com/docker/cli/cli/compose/types"
"github.com/docker/docker/api/types/mount"
"github.com/pkg/errors"
)
const endOfSpec = rune(0)
// ParseVolume parses a volume spec without any knowledge of the target platform
func ParseVolume(spec string) (types.ServiceVolumeConfig, error) {
volume := types.ServiceVolumeConfig{}
switch len(spec) {
case 0:
return volume, errors.New("invalid empty volume spec")
case 1, 2:
volume.Target = spec
volume.Type = string(mount.TypeVolume)
return volume, nil
}
buffer := []rune{}
for _, char := range spec + string(endOfSpec) {
switch {
case isWindowsDrive(buffer, char):
buffer = append(buffer, char)
case char == ':' || char == endOfSpec:
if err := populateFieldFromBuffer(char, buffer, &volume); err != nil {
populateType(&volume)
return volume, errors.Wrapf(err, "invalid spec: %s", spec)
}
buffer = []rune{}
default:
buffer = append(buffer, char)
}
}
populateType(&volume)
return volume, nil
}
func isWindowsDrive(buffer []rune, char rune) bool {
return char == ':' && len(buffer) == 1 && unicode.IsLetter(buffer[0])
}
func populateFieldFromBuffer(char rune, buffer []rune, volume *types.ServiceVolumeConfig) error {
strBuffer := string(buffer)
switch {
case len(buffer) == 0:
return errors.New("empty section between colons")
// Anonymous volume
case volume.Source == "" && char == endOfSpec:
volume.Target = strBuffer
return nil
case volume.Source == "":
volume.Source = strBuffer
return nil
case volume.Target == "":
volume.Target = strBuffer
return nil
case char == ':':
return errors.New("too many colons")
}
for _, option := range strings.Split(strBuffer, ",") {
switch option {
case "ro":
volume.ReadOnly = true
case "rw":
volume.ReadOnly = false
case "nocopy":
volume.Volume = &types.ServiceVolumeVolume{NoCopy: true}
default:
if isBindOption(option) {
volume.Bind = &types.ServiceVolumeBind{Propagation: option}
}
// ignore unknown options
}
}
return nil
}
func isBindOption(option string) bool {
for _, propagation := range mount.Propagations {
if mount.Propagation(option) == propagation {
return true
}
}
return false
}
func populateType(volume *types.ServiceVolumeConfig) {
switch {
// Anonymous volume
case volume.Source == "":
volume.Type = string(mount.TypeVolume)
case isFilePath(volume.Source):
volume.Type = string(mount.TypeBind)
default:
volume.Type = string(mount.TypeVolume)
}
}
func isFilePath(source string) bool {
switch source[0] {
case '.', '/', '~':
return true
}
if len([]rune(source)) == 1 {
return false
}
// windows named pipes
if strings.HasPrefix(source, `\\`) {
return true
}
first, nextIndex := utf8.DecodeRuneInString(source)
return isWindowsDrive([]rune{first}, rune(source[nextIndex]))
}

View File

@ -1,66 +0,0 @@
package loader
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// https://github.com/golang/go/blob/master/LICENSE
// This file contains utilities to check for Windows absolute paths on Linux.
// The code in this file was largely copied from the Golang filepath package
// https://github.com/golang/go/blob/1d0e94b1e13d5e8a323a63cd1cc1ef95290c9c36/src/path/filepath/path_windows.go#L12-L65
func isSlash(c uint8) bool {
return c == '\\' || c == '/'
}
// isAbs reports whether the path is a Windows absolute path.
func isAbs(path string) (b bool) {
l := volumeNameLen(path)
if l == 0 {
return false
}
path = path[l:]
if path == "" {
return false
}
return isSlash(path[0])
}
// volumeNameLen returns length of the leading volume name on Windows.
// It returns 0 elsewhere.
// nolint: gocyclo
func volumeNameLen(path string) int {
if len(path) < 2 {
return 0
}
// with drive letter
c := path[0]
if path[1] == ':' && ('a' <= c && c <= 'z' || 'A' <= c && c <= 'Z') {
return 2
}
// is it UNC? https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
if l := len(path); l >= 5 && isSlash(path[0]) && isSlash(path[1]) &&
!isSlash(path[2]) && path[2] != '.' {
// first, leading `\\` and next shouldn't be `\`. its server name.
for n := 3; n < l-1; n++ {
// second, next '\' shouldn't be repeated.
if isSlash(path[n]) {
n++
// third, following something characters. its share name.
if !isSlash(path[n]) {
if path[n] == '.' {
break
}
for ; n < l; n++ {
if isSlash(path[n]) {
break
}
}
return n
}
break
}
}
}
return 0
}

View File

@ -1,649 +0,0 @@
// Code generated by "esc -o bindata.go -pkg schema -ignore .*\.go -private -modtime=1518458244 data"; DO NOT EDIT.
package schema
import (
"bytes"
"compress/gzip"
"encoding/base64"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"path"
"sync"
"time"
)
type _escLocalFS struct{}
var _escLocal _escLocalFS
type _escStaticFS struct{}
var _escStatic _escStaticFS
type _escDirectory struct {
fs http.FileSystem
name string
}
type _escFile struct {
compressed string
size int64
modtime int64
local string
isDir bool
once sync.Once
data []byte
name string
}
func (_escLocalFS) Open(name string) (http.File, error) {
f, present := _escData[path.Clean(name)]
if !present {
return nil, os.ErrNotExist
}
return os.Open(f.local)
}
func (_escStaticFS) prepare(name string) (*_escFile, error) {
f, present := _escData[path.Clean(name)]
if !present {
return nil, os.ErrNotExist
}
var err error
f.once.Do(func() {
f.name = path.Base(name)
if f.size == 0 {
return
}
var gr *gzip.Reader
b64 := base64.NewDecoder(base64.StdEncoding, bytes.NewBufferString(f.compressed))
gr, err = gzip.NewReader(b64)
if err != nil {
return
}
f.data, err = ioutil.ReadAll(gr)
})
if err != nil {
return nil, err
}
return f, nil
}
func (fs _escStaticFS) Open(name string) (http.File, error) {
f, err := fs.prepare(name)
if err != nil {
return nil, err
}
return f.File()
}
func (dir _escDirectory) Open(name string) (http.File, error) {
return dir.fs.Open(dir.name + name)
}
func (f *_escFile) File() (http.File, error) {
type httpFile struct {
*bytes.Reader
*_escFile
}
return &httpFile{
Reader: bytes.NewReader(f.data),
_escFile: f,
}, nil
}
func (f *_escFile) Close() error {
return nil
}
func (f *_escFile) Readdir(count int) ([]os.FileInfo, error) {
if !f.isDir {
return nil, fmt.Errorf(" escFile.Readdir: '%s' is not directory", f.name)
}
fis, ok := _escDirs[f.local]
if !ok {
return nil, fmt.Errorf(" escFile.Readdir: '%s' is directory, but we have no info about content of this dir, local=%s", f.name, f.local)
}
limit := count
if count <= 0 || limit > len(fis) {
limit = len(fis)
}
if len(fis) == 0 && count > 0 {
return nil, io.EOF
}
return fis[0:limit], nil
}
func (f *_escFile) Stat() (os.FileInfo, error) {
return f, nil
}
func (f *_escFile) Name() string {
return f.name
}
func (f *_escFile) Size() int64 {
return f.size
}
func (f *_escFile) Mode() os.FileMode {
return 0
}
func (f *_escFile) ModTime() time.Time {
return time.Unix(f.modtime, 0)
}
func (f *_escFile) IsDir() bool {
return f.isDir
}
func (f *_escFile) Sys() interface{} {
return f
}
// _escFS returns a http.Filesystem for the embedded assets. If useLocal is true,
// the filesystem's contents are instead used.
func _escFS(useLocal bool) http.FileSystem {
if useLocal {
return _escLocal
}
return _escStatic
}
// _escDir returns a http.Filesystem for the embedded assets on a given prefix dir.
// If useLocal is true, the filesystem's contents are instead used.
func _escDir(useLocal bool, name string) http.FileSystem {
if useLocal {
return _escDirectory{fs: _escLocal, name: name}
}
return _escDirectory{fs: _escStatic, name: name}
}
// _escFSByte returns the named file from the embedded assets. If useLocal is
// true, the filesystem's contents are instead used.
func _escFSByte(useLocal bool, name string) ([]byte, error) {
if useLocal {
f, err := _escLocal.Open(name)
if err != nil {
return nil, err
}
b, err := ioutil.ReadAll(f)
_ = f.Close()
return b, err
}
f, err := _escStatic.prepare(name)
if err != nil {
return nil, err
}
return f.data, nil
}
// _escFSMustByte is the same as _escFSByte, but panics if name is not present.
func _escFSMustByte(useLocal bool, name string) []byte {
b, err := _escFSByte(useLocal, name)
if err != nil {
panic(err)
}
return b
}
// _escFSString is the string version of _escFSByte.
func _escFSString(useLocal bool, name string) (string, error) {
b, err := _escFSByte(useLocal, name)
return string(b), err
}
// _escFSMustString is the string version of _escFSMustByte.
func _escFSMustString(useLocal bool, name string) string {
return string(_escFSMustByte(useLocal, name))
}
var _escData = map[string]*_escFile{
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local: "data/config_schema_v3.0.json",
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modtime: 1518458244,
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},
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xMuXLMhT1i1bkwTstrFTzMG3Joj6nrHxZWMZt3uG2jRpCKnaT2P3v2Kpu1Q5MfCpEp8qMczQ1bGBXksd
nEmAdToeVRlbr0gLKCTGxhWpYrmOir2vqQ9Mult0hSl81coPfFoHEICMZiPV8dxPU9pXKrlcbwYNUJGc
NfHoSj1RzT5i3NSVfrFyUhVqL5TRUX74OxO5/L4ck61w2ooTChaOu/agtUHChFnc2GAfi0LYA4KgMGuW
0wTTTJJpvey9QiD5O9SXXNrWodgK3WfChr0uF3qJ2lzxuobTUc2FDdMBk/hzLHeHvP1y9su3CkQpgoF+
ZVdrZkiH5vUnfWxTZ0EXn54ILyNKLRc1p/hSFBGDn51vj4Vk2pGtEAfGNItFdSu1VJlU65dLwh1J23Cy
nilSrOWbo/u3Umdc8hG8brkTnmz4K3vd9a7crpHTI9WHPu9105/VNlrEXsNYb/91Cs6ucbpydcQYQo9R
ab2F2ZU3yJJOqgJOl9ZSfXq0BR7tr67/H09X2xdrgy9v1lThd2Gv0NCIF0o+gPzXEOv/nFlW8SonBrIZ
dt5AlyfIw6nLLdWnLq+tyx9EC6z+p4E2TOtwcwKKbtLeDMtu/TZsMsdPiPiiUO+mfFVja9FWNvOcr+hE
7n6ZQftzL1O8EkxeofPULVMrQbXp+0ztX0Dwu55u/OT3ECo+xXlSJ/4x7jVqfstg/BK6RdK86DTw2tuo
5IXrVxLsTqfu1wo8zZfjCH9T/f+8+W8AAAD//6unbt7nRwAA
`,
},
"/data": {
name: "data",
local: `data`,
isDir: true,
},
}
var _escDirs = map[string][]os.FileInfo{
"data": {
_escData["/data/config_schema_v3.0.json"],
_escData["/data/config_schema_v3.1.json"],
_escData["/data/config_schema_v3.2.json"],
_escData["/data/config_schema_v3.3.json"],
_escData["/data/config_schema_v3.4.json"],
_escData["/data/config_schema_v3.5.json"],
_escData["/data/config_schema_v3.6.json"],
_escData["/data/config_schema_v3.7.json"],
_escData["/data/config_schema_v3.8.json"],
_escData["/data/config_schema_v3.9.json"],
},
}

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@ -1,172 +0,0 @@
package schema
//go:generate esc -o bindata.go -pkg schema -ignore .*\.go -private -modtime=1518458244 data
import (
"fmt"
"strings"
"time"
"github.com/pkg/errors"
"github.com/xeipuuv/gojsonschema"
)
const (
defaultVersion = "1.0"
versionField = "version"
)
type portsFormatChecker struct{}
func (checker portsFormatChecker) IsFormat(input interface{}) bool {
// TODO: implement this
return true
}
type durationFormatChecker struct{}
func (checker durationFormatChecker) IsFormat(input interface{}) bool {
value, ok := input.(string)
if !ok {
return false
}
_, err := time.ParseDuration(value)
return err == nil
}
func init() {
gojsonschema.FormatCheckers.Add("expose", portsFormatChecker{})
gojsonschema.FormatCheckers.Add("ports", portsFormatChecker{})
gojsonschema.FormatCheckers.Add("duration", durationFormatChecker{})
}
// Version returns the version of the config, defaulting to version 1.0
func Version(config map[string]interface{}) string {
version, ok := config[versionField]
if !ok {
return defaultVersion
}
return normalizeVersion(fmt.Sprintf("%v", version))
}
func normalizeVersion(version string) string {
switch version {
case "3":
return "3.0"
default:
return version
}
}
// Validate uses the jsonschema to validate the configuration
func Validate(config map[string]interface{}, version string) error {
schemaData, err := _escFSByte(false, fmt.Sprintf("/data/config_schema_v%s.json", version))
if err != nil {
return errors.Errorf("unsupported Compose file version: %s", version)
}
schemaLoader := gojsonschema.NewStringLoader(string(schemaData))
dataLoader := gojsonschema.NewGoLoader(config)
result, err := gojsonschema.Validate(schemaLoader, dataLoader)
if err != nil {
return err
}
if !result.Valid() {
return toError(result)
}
return nil
}
func toError(result *gojsonschema.Result) error {
err := getMostSpecificError(result.Errors())
return err
}
const (
jsonschemaOneOf = "number_one_of"
jsonschemaAnyOf = "number_any_of"
)
func getDescription(err validationError) string {
switch err.parent.Type() {
case "invalid_type":
if expectedType, ok := err.parent.Details()["expected"].(string); ok {
return fmt.Sprintf("must be a %s", humanReadableType(expectedType))
}
case jsonschemaOneOf, jsonschemaAnyOf:
if err.child == nil {
return err.parent.Description()
}
return err.child.Description()
}
return err.parent.Description()
}
func humanReadableType(definition string) string {
if definition[0:1] == "[" {
allTypes := strings.Split(definition[1:len(definition)-1], ",")
for i, t := range allTypes {
allTypes[i] = humanReadableType(t)
}
return fmt.Sprintf(
"%s or %s",
strings.Join(allTypes[0:len(allTypes)-1], ", "),
allTypes[len(allTypes)-1],
)
}
if definition == "object" {
return "mapping"
}
if definition == "array" {
return "list"
}
return definition
}
type validationError struct {
parent gojsonschema.ResultError
child gojsonschema.ResultError
}
func (err validationError) Error() string {
description := getDescription(err)
return fmt.Sprintf("%s %s", err.parent.Field(), description)
}
func getMostSpecificError(errors []gojsonschema.ResultError) validationError {
mostSpecificError := 0
for i, err := range errors {
if specificity(err) > specificity(errors[mostSpecificError]) {
mostSpecificError = i
continue
}
if specificity(err) == specificity(errors[mostSpecificError]) {
// Invalid type errors win in a tie-breaker for most specific field name
if err.Type() == "invalid_type" && errors[mostSpecificError].Type() != "invalid_type" {
mostSpecificError = i
}
}
}
if mostSpecificError+1 == len(errors) {
return validationError{parent: errors[mostSpecificError]}
}
switch errors[mostSpecificError].Type() {
case "number_one_of", "number_any_of":
return validationError{
parent: errors[mostSpecificError],
child: errors[mostSpecificError+1],
}
default:
return validationError{parent: errors[mostSpecificError]}
}
}
func specificity(err gojsonschema.ResultError) int {
return len(strings.Split(err.Field(), "."))
}

View File

@ -1,245 +0,0 @@
package template
import (
"fmt"
"regexp"
"strings"
)
var delimiter = "\\$"
var substitution = "[_a-z][_a-z0-9]*(?::?[-?][^}]*)?"
var patternString = fmt.Sprintf(
"%s(?i:(?P<escaped>%s)|(?P<named>%s)|{(?P<braced>%s)}|(?P<invalid>))",
delimiter, delimiter, substitution, substitution,
)
var defaultPattern = regexp.MustCompile(patternString)
// DefaultSubstituteFuncs contains the default SubstituteFunc used by the docker cli
var DefaultSubstituteFuncs = []SubstituteFunc{
softDefault,
hardDefault,
requiredNonEmpty,
required,
}
// InvalidTemplateError is returned when a variable template is not in a valid
// format
type InvalidTemplateError struct {
Template string
}
func (e InvalidTemplateError) Error() string {
return fmt.Sprintf("Invalid template: %#v", e.Template)
}
// Mapping is a user-supplied function which maps from variable names to values.
// Returns the value as a string and a bool indicating whether
// the value is present, to distinguish between an empty string
// and the absence of a value.
type Mapping func(string) (string, bool)
// SubstituteFunc is a user-supplied function that apply substitution.
// Returns the value as a string, a bool indicating if the function could apply
// the substitution and an error.
type SubstituteFunc func(string, Mapping) (string, bool, error)
// SubstituteWith subsitute variables in the string with their values.
// It accepts additional substitute function.
func SubstituteWith(template string, mapping Mapping, pattern *regexp.Regexp, subsFuncs ...SubstituteFunc) (string, error) {
var err error
result := pattern.ReplaceAllStringFunc(template, func(substring string) string {
matches := pattern.FindStringSubmatch(substring)
groups := matchGroups(matches, pattern)
if escaped := groups["escaped"]; escaped != "" {
return escaped
}
substitution := groups["named"]
if substitution == "" {
substitution = groups["braced"]
}
if substitution == "" {
err = &InvalidTemplateError{Template: template}
return ""
}
for _, f := range subsFuncs {
var (
value string
applied bool
)
value, applied, err = f(substitution, mapping)
if err != nil {
return ""
}
if !applied {
continue
}
return value
}
value, _ := mapping(substitution)
return value
})
return result, err
}
// Substitute variables in the string with their values
func Substitute(template string, mapping Mapping) (string, error) {
return SubstituteWith(template, mapping, defaultPattern, DefaultSubstituteFuncs...)
}
// ExtractVariables returns a map of all the variables defined in the specified
// composefile (dict representation) and their default value if any.
func ExtractVariables(configDict map[string]interface{}, pattern *regexp.Regexp) map[string]string {
if pattern == nil {
pattern = defaultPattern
}
return recurseExtract(configDict, pattern)
}
func recurseExtract(value interface{}, pattern *regexp.Regexp) map[string]string {
m := map[string]string{}
switch value := value.(type) {
case string:
if values, is := extractVariable(value, pattern); is {
for _, v := range values {
m[v.name] = v.value
}
}
case map[string]interface{}:
for _, elem := range value {
submap := recurseExtract(elem, pattern)
for key, value := range submap {
m[key] = value
}
}
case []interface{}:
for _, elem := range value {
if values, is := extractVariable(elem, pattern); is {
for _, v := range values {
m[v.name] = v.value
}
}
}
}
return m
}
type extractedValue struct {
name string
value string
}
func extractVariable(value interface{}, pattern *regexp.Regexp) ([]extractedValue, bool) {
sValue, ok := value.(string)
if !ok {
return []extractedValue{}, false
}
matches := pattern.FindAllStringSubmatch(sValue, -1)
if len(matches) == 0 {
return []extractedValue{}, false
}
values := []extractedValue{}
for _, match := range matches {
groups := matchGroups(match, pattern)
if escaped := groups["escaped"]; escaped != "" {
continue
}
val := groups["named"]
if val == "" {
val = groups["braced"]
}
name := val
var defaultValue string
switch {
case strings.Contains(val, ":?"):
name, _ = partition(val, ":?")
case strings.Contains(val, "?"):
name, _ = partition(val, "?")
case strings.Contains(val, ":-"):
name, defaultValue = partition(val, ":-")
case strings.Contains(val, "-"):
name, defaultValue = partition(val, "-")
}
values = append(values, extractedValue{name: name, value: defaultValue})
}
return values, len(values) > 0
}
// Soft default (fall back if unset or empty)
func softDefault(substitution string, mapping Mapping) (string, bool, error) {
sep := ":-"
if !strings.Contains(substitution, sep) {
return "", false, nil
}
name, defaultValue := partition(substitution, sep)
value, ok := mapping(name)
if !ok || value == "" {
return defaultValue, true, nil
}
return value, true, nil
}
// Hard default (fall back if-and-only-if empty)
func hardDefault(substitution string, mapping Mapping) (string, bool, error) {
sep := "-"
if !strings.Contains(substitution, sep) {
return "", false, nil
}
name, defaultValue := partition(substitution, sep)
value, ok := mapping(name)
if !ok {
return defaultValue, true, nil
}
return value, true, nil
}
func requiredNonEmpty(substitution string, mapping Mapping) (string, bool, error) {
return withRequired(substitution, mapping, ":?", func(v string) bool { return v != "" })
}
func required(substitution string, mapping Mapping) (string, bool, error) {
return withRequired(substitution, mapping, "?", func(_ string) bool { return true })
}
func withRequired(substitution string, mapping Mapping, sep string, valid func(string) bool) (string, bool, error) {
if !strings.Contains(substitution, sep) {
return "", false, nil
}
name, errorMessage := partition(substitution, sep)
value, ok := mapping(name)
if !ok || !valid(value) {
return "", true, &InvalidTemplateError{
Template: fmt.Sprintf("required variable %s is missing a value: %s", name, errorMessage),
}
}
return value, true, nil
}
func matchGroups(matches []string, pattern *regexp.Regexp) map[string]string {
groups := make(map[string]string)
for i, name := range pattern.SubexpNames()[1:] {
groups[name] = matches[i+1]
}
return groups
}
// Split the string at the first occurrence of sep, and return the part before the separator,
// and the part after the separator.
//
// If the separator is not found, return the string itself, followed by an empty string.
func partition(s, sep string) (string, string) {
if strings.Contains(s, sep) {
parts := strings.SplitN(s, sep, 2)
return parts[0], parts[1]
}
return s, ""
}

View File

@ -1,532 +0,0 @@
package types
import (
"encoding/json"
"fmt"
"time"
)
// UnsupportedProperties not yet supported by this implementation of the compose file
var UnsupportedProperties = []string{
"build",
"cgroupns_mode",
"cgroup_parent",
"devices",
"domainname",
"external_links",
"ipc",
"links",
"mac_address",
"network_mode",
"pid",
"privileged",
"restart",
"security_opt",
"shm_size",
"userns_mode",
}
// DeprecatedProperties that were removed from the v3 format, but their
// use should not impact the behaviour of the application.
var DeprecatedProperties = map[string]string{
"container_name": "Setting the container name is not supported.",
"expose": "Exposing ports is unnecessary - services on the same network can access each other's containers on any port.",
}
// ForbiddenProperties that are not supported in this implementation of the
// compose file.
var ForbiddenProperties = map[string]string{
"extends": "Support for `extends` is not implemented yet.",
"volume_driver": "Instead of setting the volume driver on the service, define a volume using the top-level `volumes` option and specify the driver there.",
"volumes_from": "To share a volume between services, define it using the top-level `volumes` option and reference it from each service that shares it using the service-level `volumes` option.",
"cpu_quota": "Set resource limits using deploy.resources",
"cpu_shares": "Set resource limits using deploy.resources",
"cpuset": "Set resource limits using deploy.resources",
"mem_limit": "Set resource limits using deploy.resources",
"memswap_limit": "Set resource limits using deploy.resources",
}
// ConfigFile is a filename and the contents of the file as a Dict
type ConfigFile struct {
Filename string
Config map[string]interface{}
}
// ConfigDetails are the details about a group of ConfigFiles
type ConfigDetails struct {
Version string
WorkingDir string
ConfigFiles []ConfigFile
Environment map[string]string
}
// Duration is a thin wrapper around time.Duration with improved JSON marshalling
type Duration time.Duration
func (d Duration) String() string {
return time.Duration(d).String()
}
// ConvertDurationPtr converts a typedefined Duration pointer to a time.Duration pointer with the same value.
func ConvertDurationPtr(d *Duration) *time.Duration {
if d == nil {
return nil
}
res := time.Duration(*d)
return &res
}
// MarshalJSON makes Duration implement json.Marshaler
func (d Duration) MarshalJSON() ([]byte, error) {
return json.Marshal(d.String())
}
// MarshalYAML makes Duration implement yaml.Marshaler
func (d Duration) MarshalYAML() (interface{}, error) {
return d.String(), nil
}
// LookupEnv provides a lookup function for environment variables
func (cd ConfigDetails) LookupEnv(key string) (string, bool) {
v, ok := cd.Environment[key]
return v, ok
}
// Config is a full compose file configuration
type Config struct {
Filename string `yaml:"-" json:"-"`
Version string `json:"version"`
Services Services `json:"services"`
Networks map[string]NetworkConfig `yaml:",omitempty" json:"networks,omitempty"`
Volumes map[string]VolumeConfig `yaml:",omitempty" json:"volumes,omitempty"`
Secrets map[string]SecretConfig `yaml:",omitempty" json:"secrets,omitempty"`
Configs map[string]ConfigObjConfig `yaml:",omitempty" json:"configs,omitempty"`
Extras map[string]interface{} `yaml:",inline" json:"-"`
}
// MarshalJSON makes Config implement json.Marshaler
func (c Config) MarshalJSON() ([]byte, error) {
m := map[string]interface{}{
"version": c.Version,
"services": c.Services,
}
if len(c.Networks) > 0 {
m["networks"] = c.Networks
}
if len(c.Volumes) > 0 {
m["volumes"] = c.Volumes
}
if len(c.Secrets) > 0 {
m["secrets"] = c.Secrets
}
if len(c.Configs) > 0 {
m["configs"] = c.Configs
}
for k, v := range c.Extras {
m[k] = v
}
return json.Marshal(m)
}
// Services is a list of ServiceConfig
type Services []ServiceConfig
// MarshalYAML makes Services implement yaml.Marshaller
func (s Services) MarshalYAML() (interface{}, error) {
services := map[string]ServiceConfig{}
for _, service := range s {
services[service.Name] = service
}
return services, nil
}
// MarshalJSON makes Services implement json.Marshaler
func (s Services) MarshalJSON() ([]byte, error) {
data, err := s.MarshalYAML()
if err != nil {
return nil, err
}
return json.MarshalIndent(data, "", " ")
}
// ServiceConfig is the configuration of one service
type ServiceConfig struct {
Name string `yaml:"-" json:"-"`
Build BuildConfig `yaml:",omitempty" json:"build,omitempty"`
CapAdd []string `mapstructure:"cap_add" yaml:"cap_add,omitempty" json:"cap_add,omitempty"`
CapDrop []string `mapstructure:"cap_drop" yaml:"cap_drop,omitempty" json:"cap_drop,omitempty"`
CgroupNSMode string `mapstructure:"cgroupns_mode" yaml:"cgroupns_mode,omitempty" json:"cgroupns_mode,omitempty"`
CgroupParent string `mapstructure:"cgroup_parent" yaml:"cgroup_parent,omitempty" json:"cgroup_parent,omitempty"`
Command ShellCommand `yaml:",omitempty" json:"command,omitempty"`
Configs []ServiceConfigObjConfig `yaml:",omitempty" json:"configs,omitempty"`
ContainerName string `mapstructure:"container_name" yaml:"container_name,omitempty" json:"container_name,omitempty"`
CredentialSpec CredentialSpecConfig `mapstructure:"credential_spec" yaml:"credential_spec,omitempty" json:"credential_spec,omitempty"`
DependsOn []string `mapstructure:"depends_on" yaml:"depends_on,omitempty" json:"depends_on,omitempty"`
Deploy DeployConfig `yaml:",omitempty" json:"deploy,omitempty"`
Devices []string `yaml:",omitempty" json:"devices,omitempty"`
DNS StringList `yaml:",omitempty" json:"dns,omitempty"`
DNSSearch StringList `mapstructure:"dns_search" yaml:"dns_search,omitempty" json:"dns_search,omitempty"`
DomainName string `mapstructure:"domainname" yaml:"domainname,omitempty" json:"domainname,omitempty"`
Entrypoint ShellCommand `yaml:",omitempty" json:"entrypoint,omitempty"`
Environment MappingWithEquals `yaml:",omitempty" json:"environment,omitempty"`
EnvFile StringList `mapstructure:"env_file" yaml:"env_file,omitempty" json:"env_file,omitempty"`
Expose StringOrNumberList `yaml:",omitempty" json:"expose,omitempty"`
ExternalLinks []string `mapstructure:"external_links" yaml:"external_links,omitempty" json:"external_links,omitempty"`
ExtraHosts HostsList `mapstructure:"extra_hosts" yaml:"extra_hosts,omitempty" json:"extra_hosts,omitempty"`
Hostname string `yaml:",omitempty" json:"hostname,omitempty"`
HealthCheck *HealthCheckConfig `yaml:",omitempty" json:"healthcheck,omitempty"`
Image string `yaml:",omitempty" json:"image,omitempty"`
Init *bool `yaml:",omitempty" json:"init,omitempty"`
Ipc string `yaml:",omitempty" json:"ipc,omitempty"`
Isolation string `mapstructure:"isolation" yaml:"isolation,omitempty" json:"isolation,omitempty"`
Labels Labels `yaml:",omitempty" json:"labels,omitempty"`
Links []string `yaml:",omitempty" json:"links,omitempty"`
Logging *LoggingConfig `yaml:",omitempty" json:"logging,omitempty"`
MacAddress string `mapstructure:"mac_address" yaml:"mac_address,omitempty" json:"mac_address,omitempty"`
NetworkMode string `mapstructure:"network_mode" yaml:"network_mode,omitempty" json:"network_mode,omitempty"`
Networks map[string]*ServiceNetworkConfig `yaml:",omitempty" json:"networks,omitempty"`
Pid string `yaml:",omitempty" json:"pid,omitempty"`
Ports []ServicePortConfig `yaml:",omitempty" json:"ports,omitempty"`
Privileged bool `yaml:",omitempty" json:"privileged,omitempty"`
ReadOnly bool `mapstructure:"read_only" yaml:"read_only,omitempty" json:"read_only,omitempty"`
Restart string `yaml:",omitempty" json:"restart,omitempty"`
Secrets []ServiceSecretConfig `yaml:",omitempty" json:"secrets,omitempty"`
SecurityOpt []string `mapstructure:"security_opt" yaml:"security_opt,omitempty" json:"security_opt,omitempty"`
ShmSize string `mapstructure:"shm_size" yaml:"shm_size,omitempty" json:"shm_size,omitempty"`
StdinOpen bool `mapstructure:"stdin_open" yaml:"stdin_open,omitempty" json:"stdin_open,omitempty"`
StopGracePeriod *Duration `mapstructure:"stop_grace_period" yaml:"stop_grace_period,omitempty" json:"stop_grace_period,omitempty"`
StopSignal string `mapstructure:"stop_signal" yaml:"stop_signal,omitempty" json:"stop_signal,omitempty"`
Sysctls Mapping `yaml:",omitempty" json:"sysctls,omitempty"`
Tmpfs StringList `yaml:",omitempty" json:"tmpfs,omitempty"`
Tty bool `mapstructure:"tty" yaml:"tty,omitempty" json:"tty,omitempty"`
Ulimits map[string]*UlimitsConfig `yaml:",omitempty" json:"ulimits,omitempty"`
User string `yaml:",omitempty" json:"user,omitempty"`
UserNSMode string `mapstructure:"userns_mode" yaml:"userns_mode,omitempty" json:"userns_mode,omitempty"`
Volumes []ServiceVolumeConfig `yaml:",omitempty" json:"volumes,omitempty"`
WorkingDir string `mapstructure:"working_dir" yaml:"working_dir,omitempty" json:"working_dir,omitempty"`
Extras map[string]interface{} `yaml:",inline" json:"-"`
}
// BuildConfig is a type for build
// using the same format at libcompose: https://github.com/docker/libcompose/blob/master/yaml/build.go#L12
type BuildConfig struct {
Context string `yaml:",omitempty" json:"context,omitempty"`
Dockerfile string `yaml:",omitempty" json:"dockerfile,omitempty"`
Args MappingWithEquals `yaml:",omitempty" json:"args,omitempty"`
Labels Labels `yaml:",omitempty" json:"labels,omitempty"`
CacheFrom StringList `mapstructure:"cache_from" yaml:"cache_from,omitempty" json:"cache_from,omitempty"`
ExtraHosts HostsList `mapstructure:"extra_hosts" yaml:"extra_hosts,omitempty" json:"extra_hosts,omitempty"`
Network string `yaml:",omitempty" json:"network,omitempty"`
Target string `yaml:",omitempty" json:"target,omitempty"`
}
// ShellCommand is a string or list of string args
type ShellCommand []string
// StringList is a type for fields that can be a string or list of strings
type StringList []string
// StringOrNumberList is a type for fields that can be a list of strings or
// numbers
type StringOrNumberList []string
// MappingWithEquals is a mapping type that can be converted from a list of
// key[=value] strings.
// For the key with an empty value (`key=`), the mapped value is set to a pointer to `""`.
// For the key without value (`key`), the mapped value is set to nil.
type MappingWithEquals map[string]*string
// Mapping is a mapping type that can be converted from a list of
// key[=value] strings.
// For the key with an empty value (`key=`), or key without value (`key`), the
// mapped value is set to an empty string `""`.
type Mapping map[string]string
// Labels is a mapping type for labels
type Labels map[string]string
// MappingWithColon is a mapping type that can be converted from a list of
// 'key: value' strings
type MappingWithColon map[string]string
// HostsList is a list of colon-separated host-ip mappings
type HostsList []string
// LoggingConfig the logging configuration for a service
type LoggingConfig struct {
Driver string `yaml:",omitempty" json:"driver,omitempty"`
Options map[string]string `yaml:",omitempty" json:"options,omitempty"`
}
// DeployConfig the deployment configuration for a service
type DeployConfig struct {
Mode string `yaml:",omitempty" json:"mode,omitempty"`
Replicas *uint64 `yaml:",omitempty" json:"replicas,omitempty"`
Labels Labels `yaml:",omitempty" json:"labels,omitempty"`
UpdateConfig *UpdateConfig `mapstructure:"update_config" yaml:"update_config,omitempty" json:"update_config,omitempty"`
RollbackConfig *UpdateConfig `mapstructure:"rollback_config" yaml:"rollback_config,omitempty" json:"rollback_config,omitempty"`
Resources Resources `yaml:",omitempty" json:"resources,omitempty"`
RestartPolicy *RestartPolicy `mapstructure:"restart_policy" yaml:"restart_policy,omitempty" json:"restart_policy,omitempty"`
Placement Placement `yaml:",omitempty" json:"placement,omitempty"`
EndpointMode string `mapstructure:"endpoint_mode" yaml:"endpoint_mode,omitempty" json:"endpoint_mode,omitempty"`
}
// HealthCheckConfig the healthcheck configuration for a service
type HealthCheckConfig struct {
Test HealthCheckTest `yaml:",omitempty" json:"test,omitempty"`
Timeout *Duration `yaml:",omitempty" json:"timeout,omitempty"`
Interval *Duration `yaml:",omitempty" json:"interval,omitempty"`
Retries *uint64 `yaml:",omitempty" json:"retries,omitempty"`
StartPeriod *Duration `mapstructure:"start_period" yaml:"start_period,omitempty" json:"start_period,omitempty"`
Disable bool `yaml:",omitempty" json:"disable,omitempty"`
}
// HealthCheckTest is the command run to test the health of a service
type HealthCheckTest []string
// UpdateConfig the service update configuration
type UpdateConfig struct {
Parallelism *uint64 `yaml:",omitempty" json:"parallelism,omitempty"`
Delay Duration `yaml:",omitempty" json:"delay,omitempty"`
FailureAction string `mapstructure:"failure_action" yaml:"failure_action,omitempty" json:"failure_action,omitempty"`
Monitor Duration `yaml:",omitempty" json:"monitor,omitempty"`
MaxFailureRatio float32 `mapstructure:"max_failure_ratio" yaml:"max_failure_ratio,omitempty" json:"max_failure_ratio,omitempty"`
Order string `yaml:",omitempty" json:"order,omitempty"`
}
// Resources the resource limits and reservations
type Resources struct {
Limits *ResourceLimit `yaml:",omitempty" json:"limits,omitempty"`
Reservations *Resource `yaml:",omitempty" json:"reservations,omitempty"`
}
// ResourceLimit is a resource to be limited
type ResourceLimit struct {
// TODO: types to convert from units and ratios
NanoCPUs string `mapstructure:"cpus" yaml:"cpus,omitempty" json:"cpus,omitempty"`
MemoryBytes UnitBytes `mapstructure:"memory" yaml:"memory,omitempty" json:"memory,omitempty"`
Pids int64 `mapstructure:"pids" yaml:"pids,omitempty" json:"pids,omitempty"`
}
// Resource is a resource to be reserved
type Resource struct {
// TODO: types to convert from units and ratios
NanoCPUs string `mapstructure:"cpus" yaml:"cpus,omitempty" json:"cpus,omitempty"`
MemoryBytes UnitBytes `mapstructure:"memory" yaml:"memory,omitempty" json:"memory,omitempty"`
GenericResources []GenericResource `mapstructure:"generic_resources" yaml:"generic_resources,omitempty" json:"generic_resources,omitempty"`
}
// GenericResource represents a "user defined" resource which can
// only be an integer (e.g: SSD=3) for a service
type GenericResource struct {
DiscreteResourceSpec *DiscreteGenericResource `mapstructure:"discrete_resource_spec" yaml:"discrete_resource_spec,omitempty" json:"discrete_resource_spec,omitempty"`
}
// DiscreteGenericResource represents a "user defined" resource which is defined
// as an integer
// "Kind" is used to describe the Kind of a resource (e.g: "GPU", "FPGA", "SSD", ...)
// Value is used to count the resource (SSD=5, HDD=3, ...)
type DiscreteGenericResource struct {
Kind string `json:"kind"`
Value int64 `json:"value"`
}
// UnitBytes is the bytes type
type UnitBytes int64
// MarshalYAML makes UnitBytes implement yaml.Marshaller
func (u UnitBytes) MarshalYAML() (interface{}, error) {
return fmt.Sprintf("%d", u), nil
}
// MarshalJSON makes UnitBytes implement json.Marshaler
func (u UnitBytes) MarshalJSON() ([]byte, error) {
return []byte(fmt.Sprintf(`"%d"`, u)), nil
}
// RestartPolicy the service restart policy
type RestartPolicy struct {
Condition string `yaml:",omitempty" json:"condition,omitempty"`
Delay *Duration `yaml:",omitempty" json:"delay,omitempty"`
MaxAttempts *uint64 `mapstructure:"max_attempts" yaml:"max_attempts,omitempty" json:"max_attempts,omitempty"`
Window *Duration `yaml:",omitempty" json:"window,omitempty"`
}
// Placement constraints for the service
type Placement struct {
Constraints []string `yaml:",omitempty" json:"constraints,omitempty"`
Preferences []PlacementPreferences `yaml:",omitempty" json:"preferences,omitempty"`
MaxReplicas uint64 `mapstructure:"max_replicas_per_node" yaml:"max_replicas_per_node,omitempty" json:"max_replicas_per_node,omitempty"`
}
// PlacementPreferences is the preferences for a service placement
type PlacementPreferences struct {
Spread string `yaml:",omitempty" json:"spread,omitempty"`
}
// ServiceNetworkConfig is the network configuration for a service
type ServiceNetworkConfig struct {
Aliases []string `yaml:",omitempty" json:"aliases,omitempty"`
Ipv4Address string `mapstructure:"ipv4_address" yaml:"ipv4_address,omitempty" json:"ipv4_address,omitempty"`
Ipv6Address string `mapstructure:"ipv6_address" yaml:"ipv6_address,omitempty" json:"ipv6_address,omitempty"`
}
// ServicePortConfig is the port configuration for a service
type ServicePortConfig struct {
Mode string `yaml:",omitempty" json:"mode,omitempty"`
Target uint32 `yaml:",omitempty" json:"target,omitempty"`
Published uint32 `yaml:",omitempty" json:"published,omitempty"`
Protocol string `yaml:",omitempty" json:"protocol,omitempty"`
}
// ServiceVolumeConfig are references to a volume used by a service
type ServiceVolumeConfig struct {
Type string `yaml:",omitempty" json:"type,omitempty"`
Source string `yaml:",omitempty" json:"source,omitempty"`
Target string `yaml:",omitempty" json:"target,omitempty"`
ReadOnly bool `mapstructure:"read_only" yaml:"read_only,omitempty" json:"read_only,omitempty"`
Consistency string `yaml:",omitempty" json:"consistency,omitempty"`
Bind *ServiceVolumeBind `yaml:",omitempty" json:"bind,omitempty"`
Volume *ServiceVolumeVolume `yaml:",omitempty" json:"volume,omitempty"`
Tmpfs *ServiceVolumeTmpfs `yaml:",omitempty" json:"tmpfs,omitempty"`
}
// ServiceVolumeBind are options for a service volume of type bind
type ServiceVolumeBind struct {
Propagation string `yaml:",omitempty" json:"propagation,omitempty"`
}
// ServiceVolumeVolume are options for a service volume of type volume
type ServiceVolumeVolume struct {
NoCopy bool `mapstructure:"nocopy" yaml:"nocopy,omitempty" json:"nocopy,omitempty"`
}
// ServiceVolumeTmpfs are options for a service volume of type tmpfs
type ServiceVolumeTmpfs struct {
Size int64 `yaml:",omitempty" json:"size,omitempty"`
}
// FileReferenceConfig for a reference to a swarm file object
type FileReferenceConfig struct {
Source string `yaml:",omitempty" json:"source,omitempty"`
Target string `yaml:",omitempty" json:"target,omitempty"`
UID string `yaml:",omitempty" json:"uid,omitempty"`
GID string `yaml:",omitempty" json:"gid,omitempty"`
Mode *uint32 `yaml:",omitempty" json:"mode,omitempty"`
}
// ServiceConfigObjConfig is the config obj configuration for a service
type ServiceConfigObjConfig FileReferenceConfig
// ServiceSecretConfig is the secret configuration for a service
type ServiceSecretConfig FileReferenceConfig
// UlimitsConfig the ulimit configuration
type UlimitsConfig struct {
Single int `yaml:",omitempty" json:"single,omitempty"`
Soft int `yaml:",omitempty" json:"soft,omitempty"`
Hard int `yaml:",omitempty" json:"hard,omitempty"`
}
// MarshalYAML makes UlimitsConfig implement yaml.Marshaller
func (u *UlimitsConfig) MarshalYAML() (interface{}, error) {
if u.Single != 0 {
return u.Single, nil
}
return u, nil
}
// MarshalJSON makes UlimitsConfig implement json.Marshaller
func (u *UlimitsConfig) MarshalJSON() ([]byte, error) {
if u.Single != 0 {
return json.Marshal(u.Single)
}
// Pass as a value to avoid re-entering this method and use the default implementation
return json.Marshal(*u)
}
// NetworkConfig for a network
type NetworkConfig struct {
Name string `yaml:",omitempty" json:"name,omitempty"`
Driver string `yaml:",omitempty" json:"driver,omitempty"`
DriverOpts map[string]string `mapstructure:"driver_opts" yaml:"driver_opts,omitempty" json:"driver_opts,omitempty"`
Ipam IPAMConfig `yaml:",omitempty" json:"ipam,omitempty"`
External External `yaml:",omitempty" json:"external,omitempty"`
Internal bool `yaml:",omitempty" json:"internal,omitempty"`
Attachable bool `yaml:",omitempty" json:"attachable,omitempty"`
Labels Labels `yaml:",omitempty" json:"labels,omitempty"`
Extras map[string]interface{} `yaml:",inline" json:"-"`
}
// IPAMConfig for a network
type IPAMConfig struct {
Driver string `yaml:",omitempty" json:"driver,omitempty"`
Config []*IPAMPool `yaml:",omitempty" json:"config,omitempty"`
}
// IPAMPool for a network
type IPAMPool struct {
Subnet string `yaml:",omitempty" json:"subnet,omitempty"`
}
// VolumeConfig for a volume
type VolumeConfig struct {
Name string `yaml:",omitempty" json:"name,omitempty"`
Driver string `yaml:",omitempty" json:"driver,omitempty"`
DriverOpts map[string]string `mapstructure:"driver_opts" yaml:"driver_opts,omitempty" json:"driver_opts,omitempty"`
External External `yaml:",omitempty" json:"external,omitempty"`
Labels Labels `yaml:",omitempty" json:"labels,omitempty"`
Extras map[string]interface{} `yaml:",inline" json:"-"`
}
// External identifies a Volume or Network as a reference to a resource that is
// not managed, and should already exist.
// External.name is deprecated and replaced by Volume.name
type External struct {
Name string `yaml:",omitempty" json:"name,omitempty"`
External bool `yaml:",omitempty" json:"external,omitempty"`
}
// MarshalYAML makes External implement yaml.Marshaller
func (e External) MarshalYAML() (interface{}, error) {
if e.Name == "" {
return e.External, nil
}
return External{Name: e.Name}, nil
}
// MarshalJSON makes External implement json.Marshaller
func (e External) MarshalJSON() ([]byte, error) {
if e.Name == "" {
return []byte(fmt.Sprintf("%v", e.External)), nil
}
return []byte(fmt.Sprintf(`{"name": %q}`, e.Name)), nil
}
// CredentialSpecConfig for credential spec on Windows
type CredentialSpecConfig struct {
Config string `yaml:",omitempty" json:"config,omitempty"` // Config was added in API v1.40
File string `yaml:",omitempty" json:"file,omitempty"`
Registry string `yaml:",omitempty" json:"registry,omitempty"`
}
// FileObjectConfig is a config type for a file used by a service
type FileObjectConfig struct {
Name string `yaml:",omitempty" json:"name,omitempty"`
File string `yaml:",omitempty" json:"file,omitempty"`
External External `yaml:",omitempty" json:"external,omitempty"`
Labels Labels `yaml:",omitempty" json:"labels,omitempty"`
Extras map[string]interface{} `yaml:",inline" json:"-"`
Driver string `yaml:",omitempty" json:"driver,omitempty"`
DriverOpts map[string]string `mapstructure:"driver_opts" yaml:"driver_opts,omitempty" json:"driver_opts,omitempty"`
TemplateDriver string `mapstructure:"template_driver" yaml:"template_driver,omitempty" json:"template_driver,omitempty"`
}
// SecretConfig for a secret
type SecretConfig FileObjectConfig
// ConfigObjConfig is the config for the swarm "Config" object
type ConfigObjConfig FileObjectConfig