Use compose-spec parser

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/github.com/compose-spec/compose-go/loader/example1.env

@@ -0,0 +1,8 @@
+# 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

vendor/github.com/compose-spec/compose-go/loader/example2.env

@@ -0,0 +1,4 @@
+BAR=bar_from_env_file_2
+
+# overridden in configDetails.Environment
+QUX=quz_from_env_file_2

vendor/github.com/compose-spec/compose-go/loader/full-example.yml

@@ -0,0 +1,412 @@
+services:
+  foo:
+
+    build:
+      context: ./dir
+      dockerfile: Dockerfile
+      args:
+        foo: bar
+      target: foo
+      network: foo
+      cache_from:
+        - foo
+        - bar
+      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
+        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"
+    extra_hosts:
+      - "somehost:162.242.195.82"
+      - "otherhost:50.31.209.229"
+
+    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: 172.28.0.0/16
+        ip_range: 172.28.5.0/24
+        gateway: 172.28.5.254
+        aux_addresses:
+          host1: 172.28.1.5
+          host2: 172.28.1.6
+          host3: 172.28.1.7
+      - 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

vendor/github.com/compose-spec/compose-go/loader/interpolate.go

@@ -0,0 +1,84 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package loader
+
+import (
+	"strconv"
+	"strings"
+
+	interp "github.com/compose-spec/compose-go/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)
+	}
+}

vendor/github.com/compose-spec/compose-go/loader/merge.go

@@ -0,0 +1,291 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package loader
+
+import (
+	"reflect"
+	"sort"
+
+	"github.com/compose-spec/compose-go/types"
+	"github.com/imdario/mergo"
+	"github.com/pkg/errors"
+)
+
+type specials struct {
+	m map[reflect.Type]func(dst, src reflect.Value) error
+}
+
+var serviceSpecials = &specials{
+	m: map[reflect.Type]func(dst, src reflect.Value) error{
+		reflect.TypeOf(&types.LoggingConfig{}):           safelyMerge(mergeLoggingConfig),
+		reflect.TypeOf(&types.UlimitsConfig{}):           safelyMerge(mergeUlimitsConfig),
+		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,
+	},
+}
+
+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)
+		}
+		base.Extensions, err = mergeExtensions(base.Extensions, override.Extensions)
+		if err != nil {
+			return base, errors.Wrapf(err, "cannot merge extensions from %s", override.Filename)
+		}
+	}
+	return base, nil
+}
+
+func mergeServices(base, override []types.ServiceConfig) ([]types.ServiceConfig, error) {
+	baseServices := mapByName(base)
+	overrideServices := mapByName(override)
+	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(serviceSpecials)); err != nil {
+				return base, errors.Wrapf(err, "cannot merge service %s", name)
+			}
+			if len(overrideService.Command) > 0 {
+				baseService.Command = overrideService.Command
+			}
+			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
+}
+
+func mergeExtensions(base, override map[string]interface{}) (map[string]interface{}, error) {
+	if base == nil {
+		base = map[string]interface{}{}
+	}
+	err := mergo.Map(&base, &override, mergo.WithOverride)
+	return base, err
+}

vendor/github.com/compose-spec/compose-go/loader/normalize.go

@@ -0,0 +1,239 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package loader
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/compose-spec/compose-go/errdefs"
+	"github.com/compose-spec/compose-go/types"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+// normalize compose project by moving deprecated attributes to their canonical position and injecting implicit defaults
+func normalize(project *types.Project) error {
+	absWorkingDir, err := filepath.Abs(project.WorkingDir)
+	if err != nil {
+		return err
+	}
+	project.WorkingDir = absWorkingDir
+
+	absComposeFiles, err := absComposeFiles(project.ComposeFiles)
+	if err != nil {
+		return err
+	}
+	project.ComposeFiles = absComposeFiles
+
+	// If not declared explicitly, Compose model involves an implicit "default" network
+	if _, ok := project.Networks["default"]; !ok {
+		project.Networks["default"] = types.NetworkConfig{}
+	}
+
+	err = relocateExternalName(project)
+	if err != nil {
+		return err
+	}
+
+	for i, s := range project.Services {
+		if len(s.Networks) == 0 && s.NetworkMode == "" {
+			// Service without explicit network attachment are implicitly exposed on default network
+			s.Networks = map[string]*types.ServiceNetworkConfig{"default": nil}
+		}
+
+		if s.PullPolicy == types.PullPolicyIfNotPresent {
+			s.PullPolicy = types.PullPolicyMissing
+		}
+
+		fn := func(s string) (string, bool) {
+			v, ok := project.Environment[s]
+			return v, ok
+		}
+
+		if s.Build != nil {
+			if s.Build.Dockerfile == "" {
+				s.Build.Dockerfile = "Dockerfile"
+			}
+			localContext := absPath(project.WorkingDir, s.Build.Context)
+			if _, err := os.Stat(localContext); err == nil {
+				s.Build.Context = localContext
+				s.Build.Dockerfile = absPath(localContext, s.Build.Dockerfile)
+			} else {
+				// might be a remote http/git context. Unfortunately supported "remote" syntax is highly ambiguous
+				// in moby/moby and not defined by compose-spec, so let's assume runtime will check
+			}
+			s.Build.Args = s.Build.Args.Resolve(fn)
+		}
+		s.Environment = s.Environment.Resolve(fn)
+
+		err := relocateLogDriver(s)
+		if err != nil {
+			return err
+		}
+
+		err = relocateLogOpt(s)
+		if err != nil {
+			return err
+		}
+
+		err = relocateDockerfile(s)
+		if err != nil {
+			return err
+		}
+
+		project.Services[i] = s
+	}
+
+	setNameFromKey(project)
+
+	return nil
+}
+
+func absComposeFiles(composeFiles []string) ([]string, error) {
+	absComposeFiles := make([]string, len(composeFiles))
+	for i, composeFile := range composeFiles {
+		absComposefile, err := filepath.Abs(composeFile)
+		if err != nil {
+			return nil, err
+		}
+		absComposeFiles[i] = absComposefile
+	}
+	return absComposeFiles, nil
+}
+
+// Resources with no explicit name are actually named by their key in map
+func setNameFromKey(project *types.Project) {
+	for i, n := range project.Networks {
+		if n.Name == "" {
+			n.Name = fmt.Sprintf("%s_%s", project.Name, i)
+			project.Networks[i] = n
+		}
+	}
+
+	for i, v := range project.Volumes {
+		if v.Name == "" {
+			v.Name = fmt.Sprintf("%s_%s", project.Name, i)
+			project.Volumes[i] = v
+		}
+	}
+
+	for i, c := range project.Configs {
+		if c.Name == "" {
+			c.Name = fmt.Sprintf("%s_%s", project.Name, i)
+			project.Configs[i] = c
+		}
+	}
+
+	for i, s := range project.Secrets {
+		if s.Name == "" {
+			s.Name = fmt.Sprintf("%s_%s", project.Name, i)
+			project.Secrets[i] = s
+		}
+	}
+}
+
+func relocateExternalName(project *types.Project) error {
+	for i, n := range project.Networks {
+		if n.External.Name != "" {
+			if n.Name != "" {
+				return errors.Wrap(errdefs.ErrInvalid, "can't use both 'networks.external.name' (deprecated) and 'networks.name'")
+			}
+			n.Name = n.External.Name
+		}
+		project.Networks[i] = n
+	}
+
+	for i, v := range project.Volumes {
+		if v.External.Name != "" {
+			if v.Name != "" {
+				return errors.Wrap(errdefs.ErrInvalid, "can't use both 'volumes.external.name' (deprecated) and 'volumes.name'")
+			}
+			v.Name = v.External.Name
+		}
+		project.Volumes[i] = v
+	}
+
+	for i, s := range project.Secrets {
+		if s.External.Name != "" {
+			if s.Name != "" {
+				return errors.Wrap(errdefs.ErrInvalid, "can't use both 'secrets.external.name' (deprecated) and 'secrets.name'")
+			}
+			s.Name = s.External.Name
+		}
+		project.Secrets[i] = s
+	}
+
+	for i, c := range project.Configs {
+		if c.External.Name != "" {
+			if c.Name != "" {
+				return errors.Wrap(errdefs.ErrInvalid, "can't use both 'configs.external.name' (deprecated) and 'configs.name'")
+			}
+			c.Name = c.External.Name
+		}
+		project.Configs[i] = c
+	}
+	return nil
+}
+
+func relocateLogOpt(s types.ServiceConfig) error {
+	if len(s.LogOpt) != 0 {
+		logrus.Warn("`log_opts` is deprecated. Use the `logging` element")
+		if s.Logging == nil {
+			s.Logging = &types.LoggingConfig{}
+		}
+		for k, v := range s.LogOpt {
+			if _, ok := s.Logging.Options[k]; !ok {
+				s.Logging.Options[k] = v
+			} else {
+				return errors.Wrap(errdefs.ErrInvalid, "can't use both 'log_opt' (deprecated) and 'logging.options'")
+			}
+		}
+	}
+	return nil
+}
+
+func relocateLogDriver(s types.ServiceConfig) error {
+	if s.LogDriver != "" {
+		logrus.Warn("`log_driver` is deprecated. Use the `logging` element")
+		if s.Logging == nil {
+			s.Logging = &types.LoggingConfig{}
+		}
+		if s.Logging.Driver == "" {
+			s.Logging.Driver = s.LogDriver
+		} else {
+			return errors.Wrap(errdefs.ErrInvalid, "can't use both 'log_driver' (deprecated) and 'logging.driver'")
+		}
+	}
+	return nil
+}
+
+func relocateDockerfile(s types.ServiceConfig) error {
+	if s.Dockerfile != "" {
+		logrus.Warn("`dockerfile` is deprecated. Use the `build` element")
+		if s.Build == nil {
+			s.Build = &types.BuildConfig{}
+		}
+		if s.Dockerfile == "" {
+			s.Build.Dockerfile = s.Dockerfile
+		} else {
+			return errors.Wrap(errdefs.ErrInvalid, "can't use both 'dockerfile' (deprecated) and 'build.dockerfile'")
+		}
+	}
+	return nil
+}

vendor/github.com/compose-spec/compose-go/loader/validate.go

@@ -0,0 +1,77 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package loader
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/compose-spec/compose-go/errdefs"
+	"github.com/compose-spec/compose-go/types"
+	"github.com/pkg/errors"
+)
+
+// checkConsistency validate a compose model is consistent
+func checkConsistency(project *types.Project) error {
+	for _, s := range project.Services {
+		if s.Build == nil && s.Image == "" {
+			return errors.Wrapf(errdefs.ErrInvalid, "service %q has neither an image nor a build context specified", s.Name)
+		}
+
+		for network := range s.Networks {
+			if _, ok := project.Networks[network]; !ok {
+				return errors.Wrap(errdefs.ErrInvalid, fmt.Sprintf("service %q refers to undefined network %s", s.Name, network))
+			}
+		}
+
+		if strings.HasPrefix(s.NetworkMode, types.NetworkModeServicePrefix) {
+			serviceName := s.NetworkMode[len(types.NetworkModeServicePrefix):]
+			if _, err := project.GetServices(serviceName); err != nil {
+				return fmt.Errorf("service %q not found for network_mode 'service:%s'", serviceName, serviceName)
+			}
+		}
+
+		if strings.HasPrefix(s.NetworkMode, types.NetworkModeContainerPrefix) {
+			containerName := s.NetworkMode[len(types.NetworkModeContainerPrefix):]
+			if _, err := project.GetByContainerName(containerName); err != nil {
+				return fmt.Errorf("service with container_name %q not found for network_mode 'container:%s'", containerName, containerName)
+			}
+		}
+
+		for _, volume := range s.Volumes {
+			switch volume.Type {
+			case types.VolumeTypeVolume:
+				if volume.Source != "" { // non anonymous volumes
+					if _, ok := project.Volumes[volume.Source]; !ok {
+						return errors.Wrap(errdefs.ErrInvalid, fmt.Sprintf("service %q refers to undefined volume %s", s.Name, volume.Source))
+					}
+				}
+			}
+		}
+		for _, secret := range s.Secrets {
+			if _, ok := project.Secrets[secret.Source]; !ok {
+				return errors.Wrap(errdefs.ErrInvalid, fmt.Sprintf("service %q refers to undefined secret %s", s.Name, secret.Source))
+			}
+		}
+		for _, config := range s.Configs {
+			if _, ok := project.Configs[config.Source]; !ok {
+				return errors.Wrap(errdefs.ErrInvalid, fmt.Sprintf("service %q refers to undefined config %s", s.Name, config.Source))
+			}
+		}
+	}
+	return nil
+}

vendor/github.com/compose-spec/compose-go/loader/volume.go

@@ -0,0 +1,154 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package loader
+
+import (
+	"strings"
+	"unicode"
+	"unicode/utf8"
+
+	"github.com/compose-spec/compose-go/types"
+	"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(types.VolumeTypeVolume)
+		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
+}
+
+var Propagations = []string{
+	types.PropagationRPrivate,
+	types.PropagationPrivate,
+	types.PropagationRShared,
+	types.PropagationShared,
+	types.PropagationRSlave,
+	types.PropagationSlave,
+}
+
+func isBindOption(option string) bool {
+	for _, propagation := range Propagations {
+		if option == propagation {
+			return true
+		}
+	}
+	return false
+}
+
+func populateType(volume *types.ServiceVolumeConfig) {
+	if isFilePath(volume.Source) {
+		volume.Type = types.VolumeTypeBind
+		if volume.Bind == nil {
+			volume.Bind = &types.ServiceVolumeBind{}
+		}
+		// For backward compatibility with docker-compose legacy, using short notation involves
+		// bind will create missing host path
+		volume.Bind.CreateHostPath = true
+	} else {
+		volume.Type = types.VolumeTypeVolume
+		if volume.Volume == nil {
+			volume.Volume = &types.ServiceVolumeVolume{}
+		}
+	}
+}
+
+func isFilePath(source string) bool {
+	if source == "" {
+		return false
+	}
+	switch source[0] {
+	case '.', '/', '~':
+		return true
+	}
+
+	// windows named pipes
+	if strings.HasPrefix(source, `\\`) {
+		return true
+	}
+
+	first, nextIndex := utf8.DecodeRuneInString(source)
+	return isWindowsDrive([]rune{first}, rune(source[nextIndex]))
+}

vendor/github.com/compose-spec/compose-go/loader/windows_path.go

@@ -0,0 +1,82 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+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
+}