Additionally removes the `alias` and `only_alias` arguments and adds a
single `tag` argument - this makes it clear about the tag being pushed
to.
Fixes: #1631
This PR adds the `publish-docker-image-multiplatform` CI job step that
pushes a multi-platform docker image when a new tag is created. #1211
Unfortunately, this is not as simple as pushing two images targeting
different platforms to the same tag. There are a couple of ways to
create a multi-platform image:
- Using `docker buildx` to build images for all platforms. To do this
images targeting non-native platforms would need to be built using QEMU
(slower), a remote machine or cross-compilation.
- Building and publishing platform-specific images
`emscripten/emsdk-x64`, `emscripten/emsdk-arm64` and then creating a
manifest that links to these images. This is the simpler solution to
implement, and is what this PR does.
Tested with CircleCI on my fork. See the pushed images at
[radiantly/emsdk ·
DockerHub](https://hub.docker.com/r/radiantly/emsdk/tags)
This means that CI run that update `latest` actually test the thing
we are about to ship.
We recently had a case where `latest` was broken but `tot` was fixes
and we accidentally shipped a broken SDK version (#1353).
- Copy the current checkout to the Dockerfile.
- Add .dockerignore to exclude files while copying.
- Test tip-of-tree build within CI.
- Run the test suite outside the Docker image.
- Perform extra sanity tests.
- Switch to make commands for CircleCI.
- Improve Docker README.
Dockerfile:
- Use the most recent stable debian (buster) instead of the previous one
- Build version 1.39.11 by default instead of 1.38.43
- Fix small typo in the comments
Makefile and README.MD: Fix incorrect name of image on dockerhub.
