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c8d: commit: generateCommitImageConfig: don't merge image config

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daemon.CreateImageFromContainer() already constructs a new config by taking
the image config, applying custom options (`docker commit --change ..`) (if
any), and merging those with the containers' configuration, so there is
no need to merge options again.

e22758bfb2/daemon/commit.go (L152-L158)

This patch removes the merge logic from generateCommitImageConfig, and
removes the unused arguments and error-return.

Co-authored-by: Djordje Lukic <djordje.lukic@docker.com>
Co-authored-by: Laura Brehm <laurabrehm@hey.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2023-04-29 02:49:35 +02:00
parent e22758bfb2
commit 9613da63dc
No known key found for this signature in database
GPG key ID: 76698F39D527CE8C
1 changed files with 6 additions and 15 deletions
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21
daemon/containerd/image_commit.go
View file

@ -19,7 +19,6 @@ import (
"github.com/containerd/containerd/rootfs"
"github.com/containerd/containerd/snapshots"
"github.com/docker/docker/api/types/backend"
containerapi "github.com/docker/docker/api/types/container"
"github.com/docker/docker/errdefs"
"github.com/docker/docker/image"
"github.com/opencontainers/go-digest"
@ -81,10 +80,7 @@ func (i *ImageService) CommitImage(ctx context.Context, cc backend.CommitConfig)
return "", fmt.Errorf("failed to export layer: %w", err)
}
imageConfig, err := generateCommitImageConfig(ctx, container.Config, ociimage, diffID, cc)
if err != nil {
return "", fmt.Errorf("failed to generate commit image config: %w", err)
}
imageConfig := generateCommitImageConfig(ociimage, diffID, cc)
rootfsID := identity.ChainID(imageConfig.RootFS.DiffIDs).String()
if err := applyDiffLayer(ctx, rootfsID, ociimage, sn, differ, diffLayerDesc); err != nil {
@ -116,14 +112,9 @@ func (i *ImageService) CommitImage(ctx context.Context, cc backend.CommitConfig)
return image.ID(img.Target.Digest), nil
}
// generateCommitImageConfig returns commit oci image config based on the container's image.
func generateCommitImageConfig(ctx context.Context, container *containerapi.Config, baseConfig ocispec.Image, diffID digest.Digest, opts backend.CommitConfig) (ocispec.Image, error) {
if opts.Config.Cmd != nil {
baseConfig.Config.Cmd = opts.Config.Cmd
}
if opts.Config.Entrypoint != nil {
baseConfig.Config.Entrypoint = opts.Config.Entrypoint
}
// generateCommitImageConfig generates an OCI Image config based on the
// container's image and the CommitConfig options.
func generateCommitImageConfig(baseConfig ocispec.Image, diffID digest.Digest, opts backend.CommitConfig) ocispec.Image {
if opts.Author == "" {
opts.Author = baseConfig.Author
}
@ -145,7 +136,7 @@ func generateCommitImageConfig(ctx context.Context, container *containerapi.Conf
OS: os,
Created: &createdTime,
Author: opts.Author,
Config: baseConfig.Config,
Config: containerConfigToOciImageConfig(opts.Config),
RootFS: ocispec.RootFS{
Type: "layers",
DiffIDs: append(baseConfig.RootFS.DiffIDs, diffID),
@ -157,7 +148,7 @@ func generateCommitImageConfig(ctx context.Context, container *containerapi.Conf
Comment: opts.Comment,
EmptyLayer: diffID == "",
}),
}, nil
}
}
// writeContentsForImage will commit oci image config and manifest into containerd's content store.