Apache CouchDB CI

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CouchDB Continuous Integration (CI) support repo

The main purpose of this repository is to provide scripts that:

  • Install the necessary build-time dependencies for CouchDB on a number of platforms, either inside or outside of a container or VM
  • Build Docker containers with those dependencies necessary to build binary JavaScript (SpiderMonkey 1.8.5) packages
  • Build Docker containers with all dependencies necessary to build CouchDB, including Erlang and JavaScript

It intends to cover a range of both operating systems (Linux, macOS, BSD, Windows) and Erlang versions (17.x, 18.x, 19.x, etc.)

These images are used by Apache Jenkins CI to build CouchDB with every checkin to main or a release branch (e.g., 2.3.0).

CouchDB's CI build philosophy is to use Travis (with kerl) to validate CouchDB against different Erlang versions, and to use Jenkins to validate CouchDB against different OSes and architectures. Where possible, Jenkins also auto-builds convenience binaries or packages. The eventual goal is that these auto-built binaries/packages/Docker images will be auto-pushed to our distribution repos for downstream consumption.

Supported Configurations (updated 2021-03-11)

OS / distroVersionErlang VersionsArchitecturesDocker?
debianstretch19.3.6,, arm64v8:heavy_check_mark:
debianbuster20.3.8.25x86_64, arm64v8:heavy_check_mark:

...with support now for any arbitrary Erlang version!


For those OSes that support Docker, we run builds inside of Docker containers. These containers are built using the build.sh command at the root level.

Building a “platform image”

The platform images include all of the build dependencies necessary to build and full test CouchDB on a given OS/version/architecture combination.

Build a platform image with:

./build.sh platform <distro>-<version>

Overriding the Erlang, Elixir or Node version

We want to generate a rebar binary compatible with all versions of Erlang we support. If we do this on too new a version, older Erlangs won't recognize it. So we always keep an image around with that version.

On the other hand, some OSes won't run older Erlangs because of library changes, so you need to override that environment variable.

Just specify on the command line any of the ERLANGVERSION, NODEVERSION, or ELIXIRVERSION environment variables:

NODEVERSION=8 ELIXIRVERSION=v1.6.1 ERLANGVERSION=17.5.3 ./build.sh platform debian-jessie

The tool also recognizes a special ERLANGVERSION=all value for the debian-buster platform. This builds the lowest, default, and highest versions of Erlang using the kerl build system, and installs them to /usr/local/kerl for activation before builds. This version is intended for use in standard CI runs, such as for pull requests.

Building a cross-architecture Docker image

This only works from an x86_64 build host.

First, configure your machine with the correct dependencies to build multi-arch binaries:

docker run --privileged --rm tonistiigi/binfmt --install all

This is a one-time setup step. This docker container run will install the correct qemu static binaries necessary for running foreign architecture binaries on your host machine. It includes special magic to ensure sudo works correctly inside a container, too.

Then, override the CONTAINERARCH environment variable when starting build.sh:

CONTAINERARCH=aarch64 ./build.sh platform debian-stretch

Publishing a container

  1. You need a Docker Cloud account with access to the apache organization. Ask the CouchDB PMC for assistance with this.
  2. export DOCKER_ID_USER="username"
  3. docker login -u "username" and enter your password.
  4. ./build.sh platform-upload <distro>-<version> just as above.

Useful things you can do

Full build.sh options

./build.sh <command> [OPTIONS]

Recognized commands:
  clean <plat>          Removes all images for <plat>.
  clean-all             Removes all images for all platforms.

  platform <plat>       Builds the image for <plat> with Erlang & JS support.
  platform-all          Builds all images with Erlang and JS support.
  *platform-upload      Uploads the couchdbdev/*-erlang-* images to Docker Hub.
  *platform-upload-all  Uploads all the couchdbdev/*-erlang-* images to Docker.

  couch <plat>          Builds and tests CouchDB for <plat>.
  couch-all             Builds and tests CouchDB on all platforms.

  Commands marked with * require appropriate Docker Hub credentials.

Interactively working in a built container

After building the image as above:

docker run -it couchdbdev/<tag>

where <tag> is of the format <distro>-<version>-<type>, such as debian-stretch-erlang-19.3.6.

Running the CouchDB build in a published container

./build.sh couch <distro>-<version>

Building SpiderMonkey 1.8.5 convenience packages

This is only needed if a platform does not have a supported SpiderMonkey library. As of April 2021, this is no currently supported platform.

First, build the ‘base’ image with:

./build.sh base <distro>-<version>

After building the base image as above, head over to the apache/couchdb-pkg repository and follow the instructions there.

Adding support for a new release/platform/architecture

  1. Update the build scripts in the bin/ directory to install the dependencies correctly on your new OS/version/platform. Push a PR with these changes.
  2. Copy and customize an appropriate Dockerfile in the dockerfiles directory for your new OS.
  3. If a supported SpiderMonkey library is not available on the target platform, build a base image using ./build.sh base <distro>-<version>. Solve any problems with the build process here. Add your new platform combination to the .travis.yml file, then push a PR with these changes.
  4. Using the apache/couchdb-pkg repository, validate you can build the JS package. Fix any problems in that repo that arise and raise a new PR. Open a new issue on that PR requesting that the JS packages be made available through the CouchDB repository/download infrastructure.
  5. Build a full platform image with ./build.sh platform <distro>-<version>. Solve any problems with the build process here. Add your new platform combination to the .travis.yml file, then push a PR with these changes.
  6. Submit a PR against the apache/couchdb repository, adding the new platform to the top level Jenkinsfile. Ask if you need help.

Other platforms

We are eager for contributions to enhance the build scripts to support setting up machines with the necessary build environment for:

as well as alternative architectures for the already supported image types (armhf, ppc64le, s390x, sparc, etc).

We know that Docker won't support some of these, but we should be able to at least expand the install scripts for all of these platforms.