What the developer wrote
Authored by will
ci: add Cirrus cache host
Whilst the action cirruslabs/actions/cache will automatically set this
host, the docker `gha` build cache backend will not be aware of it.
Set the value here, which will later be used in the docker build args to
enable docker build cache on the cirrus cache.
What changed, and why it matters
This commit adds a single environment variable to the project's GitHub Actions CI workflow. It tells Docker where to find a local Cirrus CI build cache server (127.0.0.1:12321). There is no security-relevant change: it does not introduce secrets, change permissions, modify network exposure, or alter how Bitcoin Core itself runs.
No security action required. Review as normal CI infrastructure change.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The diff adds CIRRUS_CACHE_HOST: http://127.0.0.1:12321/ to .github/workflows/ci.yml. This value is a localhost address used by the docker gha build cache backend when jobs run on Cirrus Runners. It is purely a CI/infrastructure configuration tweak to enable Docker build caching; it does not affect Bitcoin Core code, build scripts, runtime behavior, or the threat model.
Changed components
.github/workflows/ci.ymlInspect captured patch +1 / −0
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bd9c0b64..836e3834 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,6 +19,7 @@ concurrency:
env:
CI_FAILFAST_TEST_LEAVE_DANGLING: 1 # GHA does not care about dangling processes and setting this variable avoids killing the CI script itself on error
+ CIRRUS_CACHE_HOST: http://127.0.0.1:12321/ # When using Cirrus Runners this host can be used by the docker `gha` build cache type.
MAKEJOBS: '-j10'
REPO_USE_CIRRUS_RUNNERS: 'bitcoin/bitcoin' # Use cirrus runners and cache for this repo, instead of falling back to the slow GHA runners
Why this scored 15/100
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