distributed docker build cache (#735)

* feat: use docker build cache

* update docker cache url

* add inline cache backend

* remove inline cache

* feat(docker): add docker cache registry

* more cache props

* update image-tools version

* add caching to split actions

---------

Co-authored-by: dervoeti <lukas.voetmand@stackable.tech>

Author: razvan

.github/actions/build/action.yml

@@ -10,7 +10,7 @@ inputs:
     required: true
   image-tools-version:
     description: The Stackable image-tools version
-    default: 0.0.8
+    default: 0.0.10
 outputs:
   image-name:
     description: This is the full image name before the tag (left of ':')
@@ -40,6 +40,14 @@ runs:
       shell: bash
       run: pip install image-tools-stackabletech==${{ inputs.image-tools-version }}
 
+      # Needed if you pass the --cache argument to the bake command below
+    - name: Login to the docker build cache registry
+      uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446 # v3.2.0
+      with:
+        registry: build-repo.stackable.tech:8083
+        username: github
+        password: ${{ secrets.BUILD_CACHE_NEXUS_PASSWORD }}
+
     - name: Build image using bake
       shell: bash
       run: |
@@ -49,7 +57,8 @@ runs:
         --product ${{ inputs.product-name }}=${{ inputs.product-version }} \
         --image-version "0.0.0-dev-${ARCH}" \
         --architecture "linux/${ARCH}" \
-        --export-tags-file bake-target-tags
+        --export-tags-file bake-target-tags \
+        --cache
 
     - name: Setup Environment Variables
       id: image_info

conf.py

@@ -76,4 +76,12 @@
     "zookeeper": {"id": "62552b0aadd9d54d56cda11d"},
 }
 
-cache: list[str] = []
+cache = [
+    {
+        "type": "registry",
+        "ref_prefix": "build-repo.stackable.tech:8083/sandbox/cache",
+        "mode": "max",
+        "compression": "zstd",
+        "ignore-error": "true",
+    },
+]