podman-manifest - Create and manipulate manifest lists and image indexes
podman manifest subcommand
The podman manifest command provides subcommands which can be used to:
* Create a working Docker manifest list or OCI image index.
| Command | Man Page | Description |
| add | podman-manifest-add(1) |
Add an image to a manifest list or image index.
|
| annotate | podman-manifest-annotate(1) |
Add or update information about an entry in a manifest list or image index.
|
| create | podman-manifest-create(1) |
Create a manifest list or image index.
|
| exists | podman-manifest-exists(1) |
Check if the given manifest list exists in local storage
|
| inspect | podman-manifest-inspect(1) |
Display a manifest list or image index.
|
| push | podman-manifest-push(1) |
Push a manifest list or image index to a registry.
|
| remove | podman-manifest-remove(1) |
Remove an image from a manifest list or image index.
|
| rm | podman-manifest-rm(1) |
Remove manifest list or image index from local storage.
|
Assuming the Containerfile uses RUN instructions, the host needs a way to execute non-native binaries. Configuring this is beyond the scope of this example. Building a multi-arch manifest list shazam in parallel across 4-threads can be done like this:
$ platarch=linux/amd64,linux/ppc64le,linux/arm64,linux/s390x
$ podman build --jobs=4 --platform=$platarch --manifest shazam .
Note: The --jobs argument is optional, and the -t or --tag option should not be used.
Assuming example.com/example/shazam:$arch images are built separately on other hosts and pushed to the example.com registry. They may be combined into a manifest list, and pushed using a simple loop:
$ REPO=example.com/example/shazam
$ podman manifest create $REPO:latest
$ for IMGTAG in amd64 s390x ppc64le arm64; do
podman manifest add $REPO:latest docker://$REPO:IMGTAG;
done
$ podman manifest push --all $REPO:latest
Note: The add instruction argument order is <manifest> then <image>. Also, the --all push option is required to ensure all contents are pushed, not just the native platform/arch.
Special care is needed when removing and pushing manifest lists, as opposed to the contents. You almost always want to use the manifest rm and manifest push --all subcommands. For example, a rename and push could be performed like this:
$ podman tag localhost/shazam example.com/example/shazam
$ podman manifest rm localhost/shazam
$ podman manifest push --all example.com/example/shazam
podman(1), podman-manifest-add(1), podman-manifest-annotate(1), podman-manifest-create(1), podman-manifest-inspect(1), podman-manifest-push(1), podman-manifest-remove(1)