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/*
Copyright 2020 Docker Compose CLI 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 compose
import (
"context"
"errors"
"fmt"
"os"
"os/signal"
"github.com/compose-spec/compose-go/v2/types"
"github.com/docker/cli/cli"
cmd "github.com/docker/cli/cli/command/container"
"github.com/docker/compose/v2/pkg/api"
"github.com/docker/compose/v2/pkg/utils"
"github.com/docker/docker/pkg/stringid"
)
func (s *composeService) RunOneOffContainer(ctx context.Context, project *types.Project, opts api.RunOptions) (int, error) {
containerID, err := s.prepareRun(ctx, project, opts)
if err != nil {
return 0, err
}
// remove cancellable context signal handler so we can forward signals to container without compose to exit
signal.Reset()
sigc := make(chan os.Signal, 128)
signal.Notify(sigc)
go cmd.ForwardAllSignals(ctx, s.apiClient(), containerID, sigc)
defer signal.Stop(sigc)
err = cmd.RunStart(ctx, s.dockerCli, &cmd.StartOptions{
OpenStdin: !opts.Detach && opts.Interactive,
Attach: !opts.Detach,
Containers: []string{containerID},
})
var stErr cli.StatusError
if errors.As(err, &stErr) {
return stErr.StatusCode, nil
}
return 0, err
}
func (s *composeService) prepareRun(ctx context.Context, project *types.Project, opts api.RunOptions) (string, error) {
service, err := project.GetService(opts.Service)
if err != nil {
return "", err
}
applyRunOptions(project, &service, opts)
if err := s.stdin().CheckTty(opts.Interactive, service.Tty); err != nil {
return "", err
}
slug := stringid.GenerateRandomID()
if service.ContainerName == "" {
service.ContainerName = fmt.Sprintf("%[1]s%[4]s%[2]s%[4]srun%[4]s%[3]s", project.Name, service.Name, stringid.TruncateID(slug), api.Separator)
}
one := 1
service.Scale = &one
service.Restart = ""
if service.Deploy != nil {
service.Deploy.RestartPolicy = nil
}
service.CustomLabels = service.CustomLabels.
Add(api.SlugLabel, slug).
Add(api.OneoffLabel, "True")
if err := s.ensureImagesExists(ctx, project, opts.Build, opts.QuietPull); err != nil { // all dependencies already checked, but might miss service img
return "", err
}
observedState, err := s.getContainers(ctx, project.Name, oneOffInclude, true)
if err != nil {
return "", err
}
if !opts.NoDeps {
if err := s.waitDependencies(ctx, project, service.Name, service.DependsOn, observedState, 0); err != nil {
return "", err
}
}
createOpts := createOptions{
AutoRemove: opts.AutoRemove,
AttachStdin: opts.Interactive,
UseNetworkAliases: opts.UseNetworkAliases,
Labels: mergeLabels(service.Labels, service.CustomLabels),
}
err = newConvergence(project.ServiceNames(), observedState, nil, nil, s).resolveServiceReferences(&service)
if err != nil {
return "", err
}
created, err := s.createContainer(ctx, project, service, service.ContainerName, -1, createOpts)
if err != nil {
return "", err
}
return created.ID, nil
}
func applyRunOptions(project *types.Project, service *types.ServiceConfig, opts api.RunOptions) {
service.Tty = opts.Tty
service.StdinOpen = opts.Interactive
service.ContainerName = opts.Name
if len(opts.Command) > 0 {
service.Command = opts.Command
}
if opts.User != "" {
service.User = opts.User
}
if len(opts.CapAdd) > 0 {
service.CapAdd = append(service.CapAdd, opts.CapAdd...)
service.CapDrop = utils.Remove(service.CapDrop, opts.CapAdd...)
}
if len(opts.CapDrop) > 0 {
service.CapDrop = append(service.CapDrop, opts.CapDrop...)
service.CapAdd = utils.Remove(service.CapAdd, opts.CapDrop...)
}
if opts.WorkingDir != "" {
service.WorkingDir = opts.WorkingDir
}
if opts.Entrypoint != nil {
service.Entrypoint = opts.Entrypoint
if len(opts.Command) == 0 {
service.Command = []string{}
}
}
if len(opts.Environment) > 0 {
cmdEnv := types.NewMappingWithEquals(opts.Environment)
serviceOverrideEnv := cmdEnv.Resolve(func(s string) (string, bool) {
v, ok := envResolver(project.Environment)(s)
return v, ok
}).RemoveEmpty()
service.Environment.OverrideBy(serviceOverrideEnv)
}
for k, v := range opts.Labels {
service.Labels = service.Labels.Add(k, v)
}
}
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