0ee2f35e43
In a few places we check for nil types when modifying a spec, but in many cases we do not so we could get a panic if the passed in type was not filled. Because the generated spec is filled we will not notice this but users may get unexpected panics. Signed-off-by: Justin Cormack <justin.cormack@docker.com>
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 *specs.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.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.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 *specs.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 *specs.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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