Files
atlantis/testing
Jeppe Fihl-Pearson 124eb6b4a8 Use GitHub Actions cache when building Docker images (#2737)
* Use GitHub Actions cache when building Docker images

This firstly removes the `pull: true` option from all
`build-push-action` invocations, as it was assumed it caused Docker to
pull the existing image first before building the new one, where as it
instead makes sure the base image is up to date prior to starting the
build.

Instead the `cache-from` and `cache-to` options are added which cause
the action to store and retrieve caches for each layer from GitHub
Actions' cache system as documented at
https://docs.docker.com/build/ci/github-actions/examples/#cache-backend-api.

* Pin exact Go version in testing image

This matches what is done for the production image.
2022-12-04 21:16:57 -06:00
..
2021-05-13 14:00:36 -07:00

Test Docker Image

The Docker image used by the tests is runatlantis/testing-env. It's built by the Dockerfie in this directory.

The image is automatically built by Docker Hub on merges to main.

To update the image, create a pull request that updates the Dockerfile and get it merged to main.

Wait until the build at https://hub.docker.com/repository/docker/runatlantis/testing-env/builds finishes and then scroll to the bottom to find output like:

01216b26cd75183360909a50217a39d55a9265e7: digest: sha256:9c26943a576bf8aaa7a3790f3f8677c68747114e027cfbc361717f49b958e2d1 size: 4741
Build finished

The sha 01216b26cd75183360909a50217a39d55a9265e7 is the tag of the latest image.

In .circleci/config.yml, update the image to reference the new tag:

jobs:
  test:
    docker:
-    - image: runatlantis/testing-env:<old tag>
+    - image: runatlantis/testing-env:<new tag>

And open up a PR.