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This tool bends containers using Ansible playbooks and turns them into container images. It has a pluggable builder selection — it is up to you to pick the tool which will be used to construct your container image. Right now the only supported builder is buildah. More to come in the future. Ansible-bender (ab) relies on Ansible connection plugins for performing builds.

tl;dr Ansible is the frontend, buildah is the backend.

The concept is described in following blog posts:

Looking for maintainers ❤

This project doesn't have an active maintainer right now that would watch issues daily.

If you are a user of ansible-bender and are familiar with Python, please consider becoming a maintainer.


  • You can build your container images with buildah as a backend.
  • Ansible playbook is your build recipe.
  • You are able to set various image metadata via CLI or as specific Ansible vars:
    • working directory
    • environment variables
    • labels
    • user
    • default command
    • exposed ports
  • You can do volume mounts during build.
  • Caching mechanism:
    • Every task result is cached as a container image layer.
    • You can turn this off with --no-cache.
    • You can disable caching from a certain point by adding a tag no-cache to a task.
  • You can stop creating new image layers by adding tag stop-layering to a task.
  • If an image build fails, it's committed and named with a suffix -[TIMESTAMP]-failed (so you can take a look inside and resolve the issue).
  • The tool tries to find python interpreter inside the base image.
  • You can push images you built to remote locations such as:
    • a registry, a tarball, docker daemon, ...
    • podman push is used to perform the push.


You can read more about this project in the documentation: