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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"
"fmt"
"io"
"time"
"github.com/compose-spec/compose-go/v2/types"
"github.com/docker/compose/v2/pkg/api"
"github.com/docker/compose/v2/pkg/utils"
moby "github.com/docker/docker/api/types"
containerType "github.com/docker/docker/api/types/container"
"github.com/docker/docker/pkg/stdcopy"
)
func (s composeService) runHook(ctx context.Context, container moby.Container, service types.ServiceConfig, hook types.ServiceHook, listener api.ContainerEventListener) error {
wOut := utils.GetWriter(func(line string) {
listener(api.ContainerEvent{
Type: api.HookEventLog,
Container: getContainerNameWithoutProject(container) + " ->",
ID: container.ID,
Service: service.Name,
Line: line,
})
})
defer wOut.Close() //nolint:errcheck
detached := listener == nil
exec, err := s.apiClient().ContainerExecCreate(ctx, container.ID, containerType.ExecOptions{
User: hook.User,
Privileged: hook.Privileged,
Env: ToMobyEnv(hook.Environment),
WorkingDir: hook.WorkingDir,
Cmd: hook.Command,
Detach: detached,
AttachStdout: !detached,
AttachStderr: !detached,
})
if err != nil {
return err
}
if detached {
return s.runWaitExec(ctx, exec, service, listener)
}
height, width := s.stdout().GetTtySize()
consoleSize := &[2]uint{height, width}
attach, err := s.apiClient().ContainerExecAttach(ctx, exec.ID, containerType.ExecAttachOptions{
Tty: service.Tty,
ConsoleSize: consoleSize,
})
if err != nil {
return err
}
defer attach.Close()
if service.Tty {
_, err = io.Copy(wOut, attach.Reader)
} else {
_, err = stdcopy.StdCopy(wOut, wOut, attach.Reader)
}
if err != nil {
return err
}
inspected, err := s.apiClient().ContainerExecInspect(ctx, exec.ID)
if err != nil {
return err
}
if inspected.ExitCode != 0 {
return fmt.Errorf("%s hook exited with status %d", service.Name, inspected.ExitCode)
}
return nil
}
func (s composeService) runWaitExec(ctx context.Context, exec moby.IDResponse, service types.ServiceConfig, listener api.ContainerEventListener) error {
err := s.apiClient().ContainerExecStart(ctx, exec.ID, containerType.ExecStartOptions{
Detach: listener == nil,
Tty: service.Tty,
})
if err != nil {
return nil
}
// We miss a ContainerExecWait API
tick := time.NewTicker(100 * time.Millisecond)
for {
select {
case <-ctx.Done():
return nil
case <-tick.C:
inspect, err := s.apiClient().ContainerExecInspect(ctx, exec.ID)
if err != nil {
return nil
}
if !inspect.Running {
if inspect.ExitCode != 0 {
return fmt.Errorf("%s hook exited with status %d", service.Name, inspect.ExitCode)
}
return nil
}
}
}
}
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