d88de4a34f
This change allows implementations to resolve the location of the actual data using OCI descriptor fields such as MediaType. No OCI descriptor field is written to the store. No change on gRPC API. Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
90 lines
2.5 KiB
Go
90 lines
2.5 KiB
Go
// +build windows
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/*
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Copyright The containerd 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 oci
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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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"github.com/containerd/containerd/containers"
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"github.com/containerd/containerd/content"
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"github.com/containerd/containerd/images"
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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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// WithImageConfig configures the spec to from the configuration of an Image
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func WithImageConfig(image Image) SpecOpts {
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return func(ctx context.Context, client Client, _ *containers.Container, s *Spec) error {
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setProcess(s)
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ic, err := image.Config(ctx)
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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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p, err := content.ReadBlob(ctx, image.ContentStore(), ic)
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if err != nil {
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return err
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}
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if err := json.Unmarshal(p, &ociimage); err != nil {
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return err
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}
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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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// WithTTY sets the information on the spec as well as the environment variables for
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// using a TTY
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func WithTTY(width, height int) SpecOpts {
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return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error {
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setProcess(s)
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s.Process.Terminal = true
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if s.Process.ConsoleSize == nil {
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s.Process.ConsoleSize = &specs.Box{}
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}
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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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// WithUsername sets the username on the process
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func WithUsername(username string) SpecOpts {
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return func(ctx context.Context, client Client, c *containers.Container, s *Spec) error {
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setProcess(s)
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s.Process.User.Username = username
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return nil
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}
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}
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