95 lines
2.0 KiB
Go
95 lines
2.0 KiB
Go
package containerd
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import (
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"context"
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"encoding/json"
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"fmt"
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"runtime"
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"github.com/containerd/containerd/api/services/containers"
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"github.com/containerd/containerd/images"
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protobuf "github.com/gogo/protobuf/types"
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"github.com/opencontainers/image-spec/specs-go/v1"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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const pipeRoot = `\\.\pipe`
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func createDefaultSpec() (*specs.Spec, error) {
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return &specs.Spec{
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Version: specs.Version,
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Platform: specs.Platform{
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OS: runtime.GOOS,
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Arch: runtime.GOARCH,
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},
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Root: specs.Root{},
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Process: specs.Process{
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ConsoleSize: specs.Box{
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Width: 80,
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Height: 20,
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},
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},
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}, nil
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}
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func WithImageConfig(ctx context.Context, i Image) SpecOpts {
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return func(s *specs.Spec) error {
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var (
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image = i.(*image)
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store = image.client.ContentStore()
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)
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ic, err := image.i.Config(ctx, store)
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if err != nil {
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return err
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}
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var (
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ociimage v1.Image
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config v1.ImageConfig
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)
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switch ic.MediaType {
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case v1.MediaTypeImageConfig, images.MediaTypeDockerSchema2Config:
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r, err := store.Reader(ctx, ic.Digest)
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if err != nil {
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return err
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}
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if err := json.NewDecoder(r).Decode(&ociimage); err != nil {
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r.Close()
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return err
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}
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r.Close()
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config = ociimage.Config
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default:
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return fmt.Errorf("unknown image config media type %s", ic.MediaType)
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}
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s.Process.Env = config.Env
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s.Process.Args = append(config.Entrypoint, config.Cmd...)
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s.Process.User = specs.User{
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Username: config.User,
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}
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return nil
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}
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}
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func WithTTY(width, height int) SpecOpts {
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return func(s *specs.Spec) error {
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s.Process.Terminal = true
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s.Process.ConsoleSize.Width = uint(width)
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s.Process.ConsoleSize.Height = uint(height)
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return nil
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}
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}
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func WithSpec(spec *specs.Spec) NewContainerOpts {
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return func(ctx context.Context, client *Client, c *containers.Container) error {
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data, err := json.Marshal(spec)
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if err != nil {
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return err
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}
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c.Spec = &protobuf.Any{
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TypeUrl: spec.Version,
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Value: data,
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}
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return nil
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}
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}
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