mirror of
https://gitea.com/Lydanne/buildx.git
synced 2025-11-04 10:03:42 +08:00
336 lines
8.3 KiB
Go
336 lines
8.3 KiB
Go
/*
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Copyright 2020 The Compose Specification Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package loader
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import (
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"fmt"
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"strings"
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"github.com/compose-spec/compose-go/errdefs"
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"github.com/compose-spec/compose-go/types"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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// Normalize compose project by moving deprecated attributes to their canonical position and injecting implicit defaults
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func Normalize(project *types.Project) error {
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if project.Networks == nil {
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project.Networks = make(map[string]types.NetworkConfig)
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}
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// If not declared explicitly, Compose model involves an implicit "default" network
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if _, ok := project.Networks["default"]; !ok {
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project.Networks["default"] = types.NetworkConfig{}
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}
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if err := relocateExternalName(project); err != nil {
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return err
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}
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for i, s := range project.Services {
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if len(s.Networks) == 0 && s.NetworkMode == "" {
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// Service without explicit network attachment are implicitly exposed on default network
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s.Networks = map[string]*types.ServiceNetworkConfig{"default": nil}
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}
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if s.PullPolicy == types.PullPolicyIfNotPresent {
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s.PullPolicy = types.PullPolicyMissing
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}
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fn := func(s string) (string, bool) {
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v, ok := project.Environment[s]
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return v, ok
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}
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if s.Build != nil {
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if s.Build.Context == "" {
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s.Build.Context = "."
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}
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if s.Build.Dockerfile == "" && s.Build.DockerfileInline == "" {
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s.Build.Dockerfile = "Dockerfile"
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}
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s.Build.Args = s.Build.Args.Resolve(fn)
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}
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s.Environment = s.Environment.Resolve(fn)
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for _, link := range s.Links {
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parts := strings.Split(link, ":")
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if len(parts) == 2 {
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link = parts[0]
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}
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s.DependsOn = setIfMissing(s.DependsOn, link, types.ServiceDependency{
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Condition: types.ServiceConditionStarted,
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Restart: true,
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Required: true,
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})
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}
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for _, namespace := range []string{s.NetworkMode, s.Ipc, s.Pid, s.Uts, s.Cgroup} {
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if strings.HasPrefix(namespace, types.ServicePrefix) {
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name := namespace[len(types.ServicePrefix):]
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s.DependsOn = setIfMissing(s.DependsOn, name, types.ServiceDependency{
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Condition: types.ServiceConditionStarted,
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Restart: true,
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Required: true,
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})
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}
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}
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for _, vol := range s.VolumesFrom {
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if !strings.HasPrefix(vol, types.ContainerPrefix) {
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spec := strings.Split(vol, ":")
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s.DependsOn = setIfMissing(s.DependsOn, spec[0], types.ServiceDependency{
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Condition: types.ServiceConditionStarted,
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Restart: false,
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Required: true,
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})
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}
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}
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err := relocateLogDriver(&s)
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if err != nil {
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return err
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}
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err = relocateLogOpt(&s)
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if err != nil {
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return err
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}
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err = relocateDockerfile(&s)
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if err != nil {
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return err
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}
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err = relocateScale(&s)
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if err != nil {
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return err
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}
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inferImplicitDependencies(&s)
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project.Services[i] = s
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}
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setNameFromKey(project)
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return nil
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}
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// IsServiceDependency check the relation set by ref refers to a service
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func IsServiceDependency(ref string) (string, bool) {
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if strings.HasPrefix(
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ref,
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types.ServicePrefix,
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) {
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return ref[len(types.ServicePrefix):], true
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}
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return "", false
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}
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func inferImplicitDependencies(service *types.ServiceConfig) {
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var dependencies []string
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maybeReferences := []string{
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service.NetworkMode,
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service.Ipc,
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service.Pid,
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service.Uts,
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service.Cgroup,
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}
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for _, ref := range maybeReferences {
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if dep, ok := IsServiceDependency(ref); ok {
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dependencies = append(dependencies, dep)
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}
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}
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for _, vol := range service.VolumesFrom {
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spec := strings.Split(vol, ":")
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if len(spec) == 0 {
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continue
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}
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if spec[0] == "container" {
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continue
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}
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dependencies = append(dependencies, spec[0])
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}
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for _, link := range service.Links {
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dependencies = append(dependencies, strings.Split(link, ":")[0])
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}
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if len(dependencies) > 0 && service.DependsOn == nil {
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service.DependsOn = make(types.DependsOnConfig)
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}
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for _, d := range dependencies {
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if _, ok := service.DependsOn[d]; !ok {
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service.DependsOn[d] = types.ServiceDependency{
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Condition: types.ServiceConditionStarted,
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Required: true,
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}
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}
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}
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}
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// setIfMissing adds a ServiceDependency for service if not already defined
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func setIfMissing(d types.DependsOnConfig, service string, dep types.ServiceDependency) types.DependsOnConfig {
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if d == nil {
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d = types.DependsOnConfig{}
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}
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if _, ok := d[service]; !ok {
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d[service] = dep
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}
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return d
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}
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func relocateScale(s *types.ServiceConfig) error {
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scale := uint64(s.Scale)
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if scale > 1 {
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logrus.Warn("`scale` is deprecated. Use the `deploy.replicas` element")
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if s.Deploy == nil {
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s.Deploy = &types.DeployConfig{}
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}
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if s.Deploy.Replicas != nil && *s.Deploy.Replicas != scale {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'scale' (deprecated) and 'deploy.replicas'")
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}
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s.Deploy.Replicas = &scale
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}
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return nil
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}
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// Resources with no explicit name are actually named by their key in map
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func setNameFromKey(project *types.Project) {
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for i, n := range project.Networks {
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if n.Name == "" {
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n.Name = fmt.Sprintf("%s_%s", project.Name, i)
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project.Networks[i] = n
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}
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}
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for i, v := range project.Volumes {
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if v.Name == "" {
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v.Name = fmt.Sprintf("%s_%s", project.Name, i)
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project.Volumes[i] = v
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}
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}
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for i, c := range project.Configs {
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if c.Name == "" {
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c.Name = fmt.Sprintf("%s_%s", project.Name, i)
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project.Configs[i] = c
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}
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}
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for i, s := range project.Secrets {
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if s.Name == "" {
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s.Name = fmt.Sprintf("%s_%s", project.Name, i)
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project.Secrets[i] = s
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}
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}
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}
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func relocateExternalName(project *types.Project) error {
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for i, n := range project.Networks {
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if n.External.Name != "" {
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if n.Name != "" {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'networks.external.name' (deprecated) and 'networks.name'")
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}
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n.Name = n.External.Name
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}
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project.Networks[i] = n
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}
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for i, v := range project.Volumes {
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if v.External.Name != "" {
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if v.Name != "" {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'volumes.external.name' (deprecated) and 'volumes.name'")
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}
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v.Name = v.External.Name
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}
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project.Volumes[i] = v
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}
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for i, s := range project.Secrets {
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if s.External.Name != "" {
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if s.Name != "" {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'secrets.external.name' (deprecated) and 'secrets.name'")
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}
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s.Name = s.External.Name
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}
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project.Secrets[i] = s
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}
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for i, c := range project.Configs {
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if c.External.Name != "" {
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if c.Name != "" {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'configs.external.name' (deprecated) and 'configs.name'")
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}
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c.Name = c.External.Name
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}
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project.Configs[i] = c
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}
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return nil
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}
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func relocateLogOpt(s *types.ServiceConfig) error {
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if len(s.LogOpt) != 0 {
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logrus.Warn("`log_opts` is deprecated. Use the `logging` element")
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if s.Logging == nil {
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s.Logging = &types.LoggingConfig{}
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}
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for k, v := range s.LogOpt {
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if _, ok := s.Logging.Options[k]; !ok {
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s.Logging.Options[k] = v
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} else {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'log_opt' (deprecated) and 'logging.options'")
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}
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}
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}
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return nil
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}
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func relocateLogDriver(s *types.ServiceConfig) error {
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if s.LogDriver != "" {
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logrus.Warn("`log_driver` is deprecated. Use the `logging` element")
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if s.Logging == nil {
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s.Logging = &types.LoggingConfig{}
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}
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if s.Logging.Driver == "" {
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s.Logging.Driver = s.LogDriver
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} else {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'log_driver' (deprecated) and 'logging.driver'")
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}
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}
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return nil
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}
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func relocateDockerfile(s *types.ServiceConfig) error {
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if s.Dockerfile != "" {
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logrus.Warn("`dockerfile` is deprecated. Use the `build` element")
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if s.Build == nil {
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s.Build = &types.BuildConfig{}
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}
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if s.Dockerfile == "" {
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s.Build.Dockerfile = s.Dockerfile
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} else {
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return errors.Wrap(errdefs.ErrInvalid, "can't use both 'dockerfile' (deprecated) and 'build.dockerfile'")
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}
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}
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return nil
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}
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