Add build cache

Author: Knerio

.gitlab/ci/container-build.gitlab-ci.yml

@@ -29,7 +29,8 @@
       build_image
       $image
       $CI_PIPELINE_ID
-      "--output type=registry,push-by-digest=true --metadata-file manifest-${CI_JOB_ID}.json"
+      "--output type=registry,push-by-digest=true --metadata-file manifest-${CI_JOB_ID}.json
+      --cache-to type=registry,ref=ghcr.io/code0-tech/reticulum/ci-cache "
       ""
   artifacts:
     paths:

support/helpers.sh

@@ -40,6 +40,7 @@ function build_image() {
     -t "ghcr.io/code0-tech/reticulum/ci-builds/$image$reticulum_push_tag" \
     -f "container/$image/Dockerfile" \
     --build-arg RETICULUM_IMAGE_TAG=$reticulum_tag \
+    --cache-from type=registry,ref=ghcr.io/code0-tech/reticulum/ci-cache \
     $build_args \
     .
 }