Background

In Image Builder, we use the quay.io/app-sre/packer:latest container to build AMIs that we then run in our service. We have been experiencing Packer failures when installing the latest releases of the packer-plugin-amazon plugin. But the problem seems to be the version of Packer installed in the container (see https://github.com/hashicorp/packer-plugin-amazon/issues/598 and https://discuss.hashicorp.com/t/important-update-official-packer-plugin-distribution-moving-to-releases-hashicorp-com/75972). The container uses Packer v1.8.0 , we would need v1.14.0.

It turns out that AppSRE does not have the capacity to update the container image, and we are the only users of it.

Therefore, the idea is to build our own UBI-based container image using Packer and utilize it for creating our service AMIs.

Slack discussion: https://redhat-internal.slack.com/archives/CCRND57FW/p1756804633214869

Acceptance criteria

• The distribution/Dockerfile-ubi-packer container file in the osbuild-composer repository does not use quay.io/app-sre/packer:latest.
• Packer builds in the osbuild-composer repository CI pipeline are finished successfully.