docker image for arm64

[izual0110]

No description provided.

[froozeify]

Hello, prod image are already build for arm : https://github.com/glpi-project/docker-images/blob/main/.github/workflows/glpi.yml

Could you take inspiration on the build logic (build matrix, merge manifest). That logic was chosen for build time optimization.

[izual0110]

@froozeify Hello!

I tried to mirror the build logic from glpi.yml, but this still needs testing. In particular, we need to verify that the images are pushed correctly and that the multi-architecture manifests are created as expected. Could you help with testing?

[froozeify]

Hello,

I see some missing items before we could merge it:

• Missing labels: on the build step — glpi.yml generates OCI labels via docker/metadata-action and passes them to build-push-action
• Missing sbom/provenance outputs — glpi.yml sets sbom: ${{ needs.prepare.outputs.push == 'true' }} and provenance: mode=max on push.
• glpi.yml uses plain linux/arm64 and not linux/arm64/v8 we should use it for consistency.

[izual0110]

The comments were addressed

[froozeify]

Once merged, I will created a dedicated PR to reduce the duplication with matrix generation to have only one in this file to maintain

[cedric-anne]

Are you sure about push=${{ env.PUSH }}? Will it be rendered as 'true'|'false', 1|0, or maybe an 1|(empty string)?

[froozeify]

Line 27, we get the PUSH env.PUSH declaration. ${{ github.ref == 'refs/heads/main' && github.repository == 'glpi-project/docker-images' }}

It's a condition so it will output a bool.
Github convert it to string : https://docs.github.com/en/actions/reference/workflows-and-actions/expressions

[froozeify]

empty will also be returned as false string