bc706955d7 ci: expose all ACTIONS_* vars (willcl-ark)
Pull request description:
When using `docker buildx build` in conjunction with the `gha` backend cache type (as we do in our CI) it's important to specify the URL and TOKEN needed to authenticate.
On Cirrus runners this is working with only `ACTIONS_CACHE_URL` and `ACTIONS_RUNTIME_TOKEN`, but this is not enough for the GitHub backend.
Fix this by exporting all `ACTIONS_*` variables.
This fixes docker build layer cache restore/save on forks or where GH-hosted runners are being used, and addresses https://github.com/bitcoin/bitcoin/issues/31965#issuecomment-3324707093
ACKs for top commit:
m3dwards:
ACK bc706955d7
maflcko:
lgtm ACK bc706955d7
Tree-SHA512: 13e973bb1c1ca5448dd6c3c176fb5ce39c725886ba2012d3253158205309a7038a1430135b37400e1f2f69408a9d0f4e2b3c5f0515154a593ec382ab7db10266
$FILE_ENV has a full relative path already, prepending with ci/test/
results in a non-existent path which means that DEPENDS_HASH was not
actually committing to the test's environment file.
When using `docker buildx build` in conjunction with the `gha` backend
cache type, it's important to specify the URL and TOKEN needed to
authenticate.
On Cirrus runners this is working with only `ACTIONS_CACHE_URL` and
`ACTIONS_RUNTIME_TOKEN`, but this is not enough for the GitHub backend.
Fix this by exporting all `ACTIONS_*` variables.
This fixes cache restore/save on forks or where GH-hosted runners are
being used.
Another action to reduce boilerplate in the main ci.yml file.
This action will set up a docker builder compatible with caching build
layers to a container registry using the `gha` build driver.
It will then configure the docker build cache args.
Add "Restore" and "Save" caching actions.
These actions reduce boilerplate in the main ci.yml configuration file.
These actions are implemented so that caches will be saved on `push`
only.
When a pull request is opened it will cache hit on the caches from the
lastest push, or in the case of depends will hit on any matching depends
hash, falling back to partial matches.
Depends caches are hashed using
`$(git ls-tree HEAD depends "ci/test/$FILE_ENV" | sha256sum | cut -d' ' -f1)`
and this hash is passed in as an input to the actions. This means we
direct cache hit in cases where depends would not be re-built, otherwise
falling back to a partial match.
Previous releases cache is hashed similarly to depends, but using the
test/get_previous_releases.py file.
The cirruslabs cache action will fallback transparently to GitHub's
cache in the case that the job is not being run on a Cirrus Runner,
making these compatible with running on forks (on free GH hardware).
