114 lines
2.6 KiB
Go
114 lines
2.6 KiB
Go
/*
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Copyright 2020 Docker Compose CLI 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 compose
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import (
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"context"
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"fmt"
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"io"
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"github.com/compose-spec/compose-go/types"
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apitypes "github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/compose-cli/api/compose"
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)
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func (s *composeService) Exec(ctx context.Context, project *types.Project, opts compose.RunOptions) error {
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service, err := project.GetService(opts.Service)
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if err != nil {
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return err
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}
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containers, err := s.apiClient.ContainerList(ctx, apitypes.ContainerListOptions{
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Filters: filters.NewArgs(
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projectFilter(project.Name),
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serviceFilter(service.Name),
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filters.Arg("label", fmt.Sprintf("%s=%d", containerNumberLabel, opts.Index)),
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),
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})
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if err != nil {
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return err
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}
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if len(containers) < 1 {
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return fmt.Errorf("container %s not running", getContainerName(project.Name, service, opts.Index))
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}
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container := containers[0]
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exec, err := s.apiClient.ContainerExecCreate(ctx, container.ID, apitypes.ExecConfig{
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Cmd: opts.Command,
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Env: opts.Environment,
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User: opts.User,
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Privileged: opts.Privileged,
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Tty: opts.Tty,
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Detach: opts.Detach,
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WorkingDir: opts.WorkingDir,
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AttachStdin: true,
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AttachStdout: true,
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AttachStderr: true,
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})
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if err != nil {
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return err
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}
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if opts.Detach {
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return s.apiClient.ContainerExecStart(ctx, exec.ID, apitypes.ExecStartCheck{
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Detach: true,
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Tty: opts.Tty,
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})
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}
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resp, err := s.apiClient.ContainerExecAttach(ctx, exec.ID, apitypes.ExecStartCheck{
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Detach: false,
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Tty: opts.Tty,
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})
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if err != nil {
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return err
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}
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defer resp.Close()
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if opts.Tty {
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s.monitorTTySize(ctx, exec.ID, s.apiClient.ContainerExecResize)
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if err != nil {
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return err
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}
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}
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readChannel := make(chan error, 10)
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writeChannel := make(chan error, 10)
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go func() {
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_, err := io.Copy(opts.Writer, resp.Reader)
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readChannel <- err
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}()
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go func() {
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_, err := io.Copy(resp.Conn, opts.Reader)
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writeChannel <- err
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}()
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for {
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select {
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case err := <-readChannel:
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return err
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case err := <-writeChannel:
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return err
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}
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}
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}
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