This patch disables pulling legacy (schema1 and schema 2, version 1) images by
default.
A `DOCKER_ENABLE_DEPRECATED_PULL_SCHEMA_1_IMAGE` environment-variable is
introduced to allow re-enabling this feature, aligning with the environment
variable used in containerd 2.0 (`CONTAINERD_ENABLE_DEPRECATED_PULL_SCHEMA_1_IMAGE`).
With this patch, attempts to pull a legacy image produces an error:
With graphdrivers:
docker pull docker:1.0
1.0: Pulling from library/docker
[DEPRECATION NOTICE] Docker Image Format v1, and Docker Image manifest version 2, schema 1 support will be removed in an upcoming release. Suggest the author of docker.io/library/docker:1.0 to upgrade the image to the OCI Format, or Docker Image manifest v2, schema 2. More information at https://docs.docker.com/go/deprecated-image-specs/
With the containerd image store enabled, output is slightly different
as it returns the error before printing the `1.0: pulling ...`:
docker pull docker:1.0
Error response from daemon: [DEPRECATION NOTICE] Docker Image Format v1 and Docker Image manifest version 2, schema 1 support is disabled by default and will be removed in an upcoming release. Suggest the author of docker.io/library/docker:1.0 to upgrade the image to the OCI Format or Docker Image manifest v2, schema 2. More information at https://docs.docker.com/go/deprecated-image-specs/
Using the "distribution" endpoint to resolve the digest for an image also
produces an error:
curl -v --unix-socket /var/run/docker.sock http://foo/distribution/docker.io/library/docker:1.0/json
* Trying /var/run/docker.sock:0...
* Connected to foo (/var/run/docker.sock) port 80 (#0)
> GET /distribution/docker.io/library/docker:1.0/json HTTP/1.1
> Host: foo
> User-Agent: curl/7.88.1
> Accept: */*
>
< HTTP/1.1 400 Bad Request
< Api-Version: 1.45
< Content-Type: application/json
< Docker-Experimental: false
< Ostype: linux
< Server: Docker/dev (linux)
< Date: Tue, 27 Feb 2024 16:09:42 GMT
< Content-Length: 354
<
{"message":"[DEPRECATION NOTICE] Docker Image Format v1, and Docker Image manifest version 2, schema 1 support will be removed in an upcoming release. Suggest the author of docker.io/library/docker:1.0 to upgrade the image to the OCI Format, or Docker Image manifest v2, schema 2. More information at https://docs.docker.com/go/deprecated-image-specs/"}
* Connection #0 to host foo left intact
Starting the daemon with the `DOCKER_ENABLE_DEPRECATED_PULL_SCHEMA_1_IMAGE`
env-var set to a non-empty value allows pulling the image;
docker pull docker:1.0
[DEPRECATION NOTICE] Docker Image Format v1 and Docker Image manifest version 2, schema 1 support is disabled by default and will be removed in an upcoming release. Suggest the author of docker.io/library/docker:1.0 to upgrade the image to the OCI Format or Docker Image manifest v2, schema 2. More information at https://docs.docker.com/go/deprecated-image-specs/
b0a0e6710d13: Already exists
d193ad713811: Already exists
ba7268c3149b: Already exists
c862d82a67a2: Already exists
Digest: sha256:5e7081837926c7a40e58881bbebc52044a95a62a2ea52fb240db3fc539212fe5
Status: Image is up to date for docker:1.0
docker.io/library/docker:1.0
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The github.com/containerd/containerd/log package was moved to a separate
module, which will also be used by upcoming (patch) releases of containerd.
This patch moves our own uses of the package to use the new module.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The signatures of functions in containerd's errdefs packages are very
similar to those in our own, and it's easy to accidentally use the wrong
package.
This patch uses a consistent alias for all occurrences of this import.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is accomplished by storing the distribution source in the content
labels. If the distribution source is not found then we check to the
registry to see if the digest exists in the repo, if it does exist then
the puller will use it.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
I think this was there for historic reasons (may have been goimports expected
this, and we used to have a linter that wanted it), but it's not needed, so
let's remove it (to make my IDE less complaining about unneeded aliases).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The io/ioutil package has been deprecated in Go 1.16. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
This allows us to cache manifests and avoid extra round trips to the
registry for content we already know about.
dockerd currently does not support containerd on Windows, so this does
not store manifests on Windows, yet.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
