126 lines
2.7 KiB
Go
126 lines
2.7 KiB
Go
package linux
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import (
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"github.com/containerd/containerd"
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"github.com/containerd/containerd/api/services/shim"
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"github.com/containerd/containerd/api/types/container"
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protobuf "github.com/gogo/protobuf/types"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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"golang.org/x/net/context"
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)
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type State struct {
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pid uint32
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status containerd.Status
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}
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func (s State) Pid() uint32 {
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return s.pid
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}
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func (s State) Status() containerd.Status {
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return s.status
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}
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type Container struct {
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id string
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shim shim.ShimClient
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}
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func (c *Container) Info() containerd.ContainerInfo {
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return containerd.ContainerInfo{
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ID: c.id,
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Runtime: runtimeName,
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}
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}
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func (c *Container) Start(ctx context.Context) error {
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_, err := c.shim.Start(ctx, &shim.StartRequest{})
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return err
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}
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func (c *Container) State(ctx context.Context) (containerd.State, error) {
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response, err := c.shim.State(ctx, &shim.StateRequest{})
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if err != nil {
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return nil, err
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}
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var status containerd.Status
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switch response.Status {
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case container.Status_CREATED:
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status = containerd.CreatedStatus
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case container.Status_RUNNING:
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status = containerd.RunningStatus
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case container.Status_STOPPED:
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status = containerd.StoppedStatus
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case container.Status_PAUSED:
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status = containerd.PausedStatus
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// TODO: containerd.DeletedStatus
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}
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return &State{
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pid: response.Pid,
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status: status,
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}, nil
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}
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func (c *Container) Pause(ctx context.Context) error {
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_, err := c.shim.Pause(ctx, &shim.PauseRequest{})
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return err
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}
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func (c *Container) Resume(ctx context.Context) error {
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_, err := c.shim.Resume(ctx, &shim.ResumeRequest{})
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return err
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}
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func (c *Container) Kill(ctx context.Context, signal uint32, all bool) error {
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_, err := c.shim.Kill(ctx, &shim.KillRequest{
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Signal: signal,
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All: all,
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})
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return err
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}
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func (c *Container) Exec(ctx context.Context, opts containerd.ExecOpts) (containerd.Process, error) {
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request := &shim.ExecRequest{
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Stdin: opts.IO.Stdin,
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Stdout: opts.IO.Stdout,
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Stderr: opts.IO.Stderr,
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Terminal: opts.IO.Terminal,
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Spec: &protobuf.Any{
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TypeUrl: specs.Version,
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Value: opts.Spec,
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},
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}
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resp, err := c.shim.Exec(ctx, request)
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if err != nil {
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return nil, err
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}
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return &Process{
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pid: int(resp.Pid),
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c: c,
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}, nil
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}
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type Process struct {
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pid int
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c *Container
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}
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func (p *Process) Kill(ctx context.Context, signal uint32, _ bool) error {
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_, err := p.c.shim.Kill(ctx, &shim.KillRequest{
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Signal: signal,
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Pid: uint32(p.pid),
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})
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return err
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}
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func (p *Process) State(ctx context.Context) (containerd.State, error) {
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// use the container status for the status of the process
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state, err := p.c.State(ctx)
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if err != nil {
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return nil, err
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}
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state.(*State).pid = uint32(p.pid)
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return state, nil
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}
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