mirror of https://github.com/docker/buildx.git
56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
package commands
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import (
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"context"
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"fmt"
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"io"
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cerrdefs "github.com/containerd/errdefs"
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"github.com/docker/buildx/monitor/types"
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"github.com/pkg/errors"
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)
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type AttachCmd struct {
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m types.Monitor
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stdout io.WriteCloser
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}
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func NewAttachCmd(m types.Monitor, stdout io.WriteCloser) types.Command {
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return &AttachCmd{m, stdout}
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}
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func (cm *AttachCmd) Info() types.CommandInfo {
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return types.CommandInfo{
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Name: "attach",
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HelpMessage: "attach to a process in the container",
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HelpMessageLong: `
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Usage:
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attach PID
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PID is for a process (visible via ps command).
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Use Ctrl-a-c for switching the monitor to that process's STDIO.
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`,
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}
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}
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func (cm *AttachCmd) Exec(ctx context.Context, args []string) error {
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if len(args) < 2 {
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return errors.Errorf("PID of process must be passed")
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}
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pid := args[1]
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infos, err := cm.m.ListProcesses(ctx)
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if err != nil {
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return err
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}
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for _, p := range infos {
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if p.ProcessID == pid {
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cm.m.Attach(ctx, pid)
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fmt.Fprintf(cm.stdout, "Attached to process %q. Press Ctrl-a-c to switch to the new container\n", pid)
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return nil
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}
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}
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return errors.Wrapf(cerrdefs.ErrNotFound, "pid %s", pid)
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}
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