containerd/spec_opts_windows.go
Stephen J Day 9163377123
platforms: provide simpler function for common use
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-09-20 11:56:59 -07:00

72 lines
1.8 KiB
Go

// +build windows
package containerd
import (
"context"
"encoding/json"
"fmt"
"github.com/containerd/containerd/containers"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/platforms"
"github.com/opencontainers/image-spec/specs-go/v1"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
func WithImageConfig(i Image) SpecOpts {
return func(ctx context.Context, client *Client, _ *containers.Container, s *specs.Spec) error {
var (
image = i.(*image)
store = client.ContentStore()
)
ic, err := image.i.Config(ctx, store, platforms.Default())
if err != nil {
return err
}
var (
ociimage v1.Image
config v1.ImageConfig
)
switch ic.MediaType {
case v1.MediaTypeImageConfig, images.MediaTypeDockerSchema2Config:
p, err := content.ReadBlob(ctx, store, ic.Digest)
if err != nil {
return err
}
if err := json.Unmarshal(p, &ociimage); err != nil {
return err
}
config = ociimage.Config
default:
return fmt.Errorf("unknown image config media type %s", ic.MediaType)
}
s.Process.Env = config.Env
s.Process.Args = append(config.Entrypoint, config.Cmd...)
s.Process.User = specs.User{
Username: config.User,
}
return nil
}
}
func WithTTY(width, height int) SpecOpts {
return func(_ context.Context, _ *Client, _ *containers.Container, s *specs.Spec) error {
s.Process.Terminal = true
if s.Process.ConsoleSize == nil {
s.Process.ConsoleSize = &specs.Box{}
}
s.Process.ConsoleSize.Width = uint(width)
s.Process.ConsoleSize.Height = uint(height)
return nil
}
}
func WithResources(resources *specs.WindowsResources) UpdateTaskOpts {
return func(ctx context.Context, client *Client, r *UpdateTaskInfo) error {
r.Resources = resources
return nil
}
}