id / emqx-builder

NOTE: Must sync Dockerfile chages from main-4.4 branch!

Docker images for EMQX Builder

This repo holds the Dockerfile and build scripts to build docker images which are used to build EMQX.

The main-4.4 branch is for EMQX 4.4 series. The main branch is for EMQX 5.0 series.

OTP repo https://github.com/emqx/otp.git

EMQX uses a forked Erlang/OTP with the tag scheme <UPSTREAM_TAG>-N where N is the build number which includes bug fixes to Erlang/OTP source code. For example: OTP-24.1.5-1

Add new OTP / Elixir versions to build

When we need to support a new OTP or Elixir version for a bugfix release, we should add a new OTP tag to the list in RELEASE.md

for example, after 5.0.0-otp24.1.5-1 is released, in case there is a bug found in OTP which requires OTP 24.2-1, we should add + OTP-24.2-1 to the list. For Elixir, once 1.13.2 is released, for example, it should be added as + Elixir-1.13.2 to the list.

This list should be append-only in case we want to rebuild an old EMQX tag, we can still find an up-to-date docker image for it.

Image tag scheme

ghcr.io/emqx/emqx-builder/<BUILDER_GIT_TAG>:1.13.1-24.1.5-1-ubuntu20.04

Where BUILDER_GIT_TAG is of scheme 4.4-1 for images to build EMQX 4.4.X and 5.0-1, 5.0-2 for images to build EMQX 5.0.X. 1.13.1 and 24.1.5-1 are the Elixir and OTP version, respectively.

Notice that we do not track the patch version of EMQX in our image scheme: we have one base image for each minor release that can be shared on a non one-to-one basis with several EMQX patch releases.

For example: EMQX 5.0.0 and 5.0.3 may share the same emqx-builder/5.0-2 image.