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woodpecker/docs/blog/2023-12-12-podman-image-builds/index.md
2024-11-05 03:32:45 +01:00

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---
title: '[Community] Podman-in-Podman image builds'
description: Build images in Podman with buildah
slug: podman-image-builds
authors:
- name: handlebargh
url: https://github.com/handlebargh
image_url: https://github.com/handlebargh.png
hide_table_of_contents: true
tags: [community, image, podman]
---
<!-- cspell:ignore buildah Containerfile roundcube -->
I run Woodpecker CI with podman backend instead of docker and just figured out how to build images with buildah. Since I couldn't find this anywhere documented, I thought I might as well just share it here.
<!-- truncate -->
It's actually pretty straight forward. Here's what my repository structure looks like:
```bash
.
├── roundcube
│   ├── Containerfile
│   ├── docker-entrypoint.sh
│   └── php.ini
└── .woodpecker
└── .build_roundcube.yml
```
As you can see I'm building a roundcube mail image.
This is the `.woodpecker/.build_roundcube.yaml`
```yaml
when:
event: [cron, manual]
cron: build_roundcube
steps:
build-image:
image: quay.io/buildah/stable:latest
pull: true
privileged: true
commands:
- echo $REGISTRY_LOGIN_TOKEN | buildah login -u <username> --password-stdin registry.gitlab.com
- cd roundcube
- buildah build --tag registry.gitlab.com/<namespace>/<repository_name>/roundcube:latest .
- buildah push registry.gitlab.com/<namespace>/<repository_name>/roundcube:latest
secrets: [registry_login_token]
```
As you can see, I'm using this workflow over at gitlab.com. It should work with GitHub as well, with adjusting the registry login.
You may have to adjust the `when:` to your needs. Furthermore, you must check the `trusted` checkbox in project settings. Therefore, be sure to run trusted code only in this setup.
This seems to work fine so far. I wonder if anybody else made this work a different way.
EDIT: Removed the additional step that would run buildah in a podman container. I didn't know it could be that easy to be honest.