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package manager
import (
"context"
"errors"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"github.com/compose-spec/compose-go/loader"
"github.com/compose-spec/compose-go/types"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/flags"
"github.com/docker/compose/v2/pkg/api"
"github.com/docker/compose/v2/pkg/compose"
"github.com/paroque28/container-chief/pkg/config"
"github.com/paroque28/container-chief/pkg/messages"
"github.com/rs/zerolog/log"
)
type ComposeManager struct {
servicesPath string
cli command.Cli
}
func NewComposeManager(configuration config.DaemonConfigurations) *ComposeManager {
os.MkdirAll(configuration.DockerCompose.CHIEF_SERVICES_PATH, os.ModePerm)
cli, err := command.NewDockerCli(command.WithStandardStreams())
cli.Initialize(flags.NewClientOptions())
if err != nil {
log.Error().Err(err).Msg("Failed to create docker cli")
return nil
}
return &ComposeManager{servicesPath: configuration.DockerCompose.CHIEF_SERVICES_PATH, cli: cli}
}
func (manager *ComposeManager) MessageHandler(configuration messages.Configuration) (err error) {
services, err := manager.ListDockerCompose()
for service_name, service := range configuration.Projects {
// Create folder for service
servicepath := filepath.Join(manager.servicesPath, service_name)
if err := os.MkdirAll(servicepath, os.ModePerm); err != nil {
log.Error().Err(err).Msg("Failed to create service directory")
continue
}
// Create service file
err = ioutil.WriteFile(servicepath+"/docker-compose.yml", []byte(service.Compose), 0644)
if err != nil {
log.Error().Err(err).Msg("Failed to create service file")
continue
}
if strings.Contains(service.Status, "up") {
// Start or update project
err = manager.StartProject(servicepath + "/docker-compose.yml")
} else if strings.Contains(service.Status, "pull") {
// Pull project
err = manager.PullProject(servicepath + "/docker-compose.yml")
err = manager.StopProject(servicepath + "/docker-compose.yml")
} else if strings.Contains(service.Status, "down") {
// Stop project
err = manager.StopProject(servicepath + "/docker-compose.yml")
} else {
log.Info().Str("service", service_name).Str("status", service.Status).Msg("Unknown status")
}
if err != nil {
log.Error().Err(err).Str("service", service_name).Str("status", service.Status).Msg("Failed to start service")
return err
}
}
err = manager.removeOrphanProjects(services, configuration.Projects)
log.Info().Msg("Compose Manager status updated!")
return err
}
func (manager *ComposeManager) removeOrphanProjects(stack []api.Stack, projects map[string]messages.Project) (err error) {
for _, composeProject := range stack {
log.Debug().Str("project", composeProject.Name).Msg("removeOrphanProjects")
found := false
for projectName := range projects {
if composeProject.Name == projectName {
found = true
break
}
}
if !found {
log.Info().Str("project", composeProject.Name).Msg("Removing orphan project")
composeFile := filepath.Join(manager.servicesPath, composeProject.Name, "docker-compose.yml")
if _, err := os.Stat(composeFile); err == nil {
err = manager.StopProject(composeFile)
err = manager.RemoveProject(composeFile)
if err != nil {
log.Error().Err(err).Msg("Failed to remove orphan project")
return err
}
} else {
log.Info().Str("project", composeProject.Name).Msg("Orphan project not found")
}
}
}
return err
}
func withProjectName(name string) func(*loader.Options) {
return func(lOpts *loader.Options) {
lOpts.SetProjectName(name, true)
}
}
func (manager *ComposeManager) readComposeFile(composeFile string) (project *types.Project, err error) {
if composeFile == "" {
return nil, errors.New("composeFile is empty")
}
fullPath, err := filepath.Abs(composeFile)
if err != nil {
log.Error().Err(err).Msg("Failed to get absolute path")
}
baseDir := filepath.Dir(fullPath)
var b []byte
b, err = os.ReadFile(fullPath)
if err != nil {
log.Error().Err(err).Msg("Failed to read compose file")
return project, err
}
var files []types.ConfigFile
files = append(files, types.ConfigFile{Filename: composeFile, Content: b})
envMap := make(map[string]string)
// Read Compose File
project, err = loader.Load(types.ConfigDetails{
WorkingDir: baseDir,
ConfigFiles: files,
Environment: envMap,
}, withProjectName(path.Base(baseDir)))
for i := range project.Services {
// Workaround for https://github.com/docker/compose/pull/9579
if project.Services[i].CustomLabels == nil {
project.Services[i].CustomLabels = map[string]string{
api.ProjectLabel: project.Name,
api.ServiceLabel: project.Services[i].Name,
api.VersionLabel: api.ComposeVersion,
api.WorkingDirLabel: project.WorkingDir,
api.ConfigFilesLabel: strings.Join(project.ComposeFiles, ","),
api.OneoffLabel: "False", // default, will be overridden by `run` command
}
}
project.Services[i].CustomLabels["chief.project"] = project.Name
}
log.Debug().Interface("project", project).Msg("readComposeFile")
return project, err
}
func (manager *ComposeManager) PullProject(composeFile string) (err error) {
ctx := context.TODO()
project, err := manager.readComposeFile(composeFile)
if err != nil {
log.Error().Err(err).Msg("Failed to read compose file")
return err
}
opts := api.PullOptions{Quiet: false, IgnoreFailures: false}
composeService := compose.NewComposeService(manager.cli)
err = composeService.Pull(ctx, project, opts)
return err
}
func (manager *ComposeManager) StartProject(composeFile string) (err error) {
log.Info().Str("composeFile", composeFile).Msg("Start project")
ctx := context.TODO()
project, err := manager.readComposeFile(composeFile)
if err != nil {
log.Error().Err(err).Msg("Failed to read compose file")
return err
}
createOpts := api.CreateOptions{RemoveOrphans: true, IgnoreOrphans: true, QuietPull: false, Inherit: false, Recreate: api.RecreateDiverged}
startOpts := api.StartOptions{Project: project, CascadeStop: false, Wait: false, AttachTo: project.ServiceNames()}
opts := api.UpOptions{Start: startOpts, Create: createOpts}
log.Debug().Interface("opts", opts).Msg("Up options")
composeService := compose.NewComposeService(manager.cli)
log.Info().Str("composeFile", composeFile).Interface("project", *project).Msg("Creating project")
err = composeService.Create(ctx, project, createOpts)
if err != nil {
log.Error().Err(err).Msg("Failed to create project")
return err
}
log.Info().Str("composeFile", composeFile).Msg("Starting project")
err = composeService.Up(ctx, project, opts)
return err
}
func (manager *ComposeManager) StopProject(composeFile string) (err error) {
log.Info().Str("composeFile", composeFile).Msg("Stop project")
ctx := context.TODO()
project, err := manager.readComposeFile(composeFile)
if err != nil {
log.Error().Err(err).Msg("Failed to read compose file")
return err
}
opts := api.DownOptions{RemoveOrphans: true, Project: project, Images: "local"}
composeService := compose.NewComposeService(manager.cli)
err = composeService.Down(ctx, project.Name, opts)
return err
}
func (manager *ComposeManager) RemoveProject(composeFile string) (err error) {
log.Info().Str("composeFile", composeFile).Msg("Remove project")
ctx := context.TODO()
project, err := manager.readComposeFile(composeFile)
if err != nil {
log.Error().Err(err).Msg("Failed to read compose file")
return err
}
opts := api.RemoveOptions{Force: true}
composeService := compose.NewComposeService(manager.cli)
err = composeService.Remove(ctx, project.Name, opts)
return err
}
func (manager *ComposeManager) ListDockerCompose() (stack []api.Stack, err error) {
ctx := context.TODO()
opts := api.ListOptions{All: true}
composeService := compose.NewComposeService(manager.cli)
stack, err = composeService.List(ctx, opts)
if err != nil {
log.Error().Err(err).Msg("Failed to list services")
return stack, err
}
log.Info().Str("version", manager.cli.Client().ClientVersion()).Interface("stack", stack).Msg("Stack results")
return stack, err
}