(UNMAINTAINED) A build server like Jenkins, but stateless, super lightweight and aimed for building Dockerized apps.
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Buildbot has been superseded by function61/turbobob


Buildbot is a build server like Jenkins, but stateless, super lightweight and aimed for building Dockerized apps.

All state management is left to the party that starts the build job, e.g. supplying repository address & credentials, Docker registry credentials etc.

Optional build-in-a-separate-container -feature

Buildbot supports a model where the build environment is separated from the resulting Docker image.

A simple example: you have a static website generator (based on Jekyll or Hugo). Ubuntu image + Jekyll is 359.9 MB so add your HTTP server and website content on top of that.

With Buildbot you can build your website inside that 359.9 MB Jekyll-based build container, BUT take the resulting artifact (= static website) and put it in the resulting container with only a HTTP server and the website content (my blog weighs in at 19.93 MB).

Running it

$ docker run -d --name buildbot \
	-v /var/run/docker.sock:/var/run/docker.sock \
	-v /data/buildbot-work:/buildbot-work \
	-e "SSH_PUBKEY_IN_INITIATE_BUILDS=ssh-rsa AAAA....lQ7+Dja3Q==" \


  • SSH_PUBKEY_IN_INITIATE_BUILDS is SSH public key of the account that dials in via SSH to run builds
  • /var/run/docker.sock is required for image pulls/builds/pushes AND for in-container builds
  • /data/buildbot-work is required for in-container builds


$ docker exec -it buildbot buildbot.sh
        --service_id hello-world

        --repo ssh://hg@bitbucket.org/joonas_fi/hello-repo
        --repo_auth_key AAAAB3NzaC1yc2EAAAADAQABAAACAQDN... (RSA PRIVATE KEY as base64)
        --revision 31c7fda7aa51d1e289a1e8bd4077506c93fa9820

        Docker image
        --image 329074924855.dkr.ecr.us-east-1.amazonaws.com/hello-world
        --tag latest

        Docker registry
        --docker_login_cmd "docker login -u ... -p ... 329074924855.dkr.ecr.us-east-1.amazonaws.com"
        --docker_login_cache eW91ciBtb20gaXMgYSBmYXQgc2xvYgo= (base64-encoded chunk from ~/.docker/config.json)

# actual job submit
$ ssh root@ip-of-buildbot buildbot.sh --service_id foo --repo git@github.com:function61/sql2json.git --revision ....

TODO / roadmap

  • Push additional tags at the same time (think exact revision tag AND "latest" release)
  • instead of SSH connectivity, implement as HTTP API? The hardest part would be streaming stdout/stderr while build progresses, and return code at the end.

Support / contact

Basic support (no guarantees) for issues / feature requests via GitHub issues.

Paid support is available via function61.com/consulting

Contact options (email, Twitter etc.) at function61.com