From 2f8f43e6f7cc22ca0a3d28fece504b1e30b20eed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A9ctor=20Molinero=20Fern=C3=A1ndez?=
 <hector@molinero.dev>
Date: Tue, 14 Jun 2022 23:45:37 +0200
Subject: [PATCH] Build common stages separately

---
 .github/workflows/main.yml | 46 +++++++++++++++++++++++++++++++++-----
 1 file changed, 41 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bc4c932..50f6df4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,9 +12,34 @@ permissions: {}
 
 jobs:
 
+  build-common-stages:
+    name: 'Build common stages'
+    runs-on: 'ubuntu-22.04'
+    permissions:
+      contents: 'read'
+    strategy:
+      matrix:
+        stage: ['build']
+    steps:
+      - name: 'Checkout project'
+        uses: 'actions/checkout@v3'
+      - name: 'Build and save image'
+        run: |
+          make \
+            IMAGE_REGISTRY="localhost" IMAGE_NAMESPACE="stage" IMAGE_PROJECT="${{ matrix.stage }}" \
+            IMAGE_BUILD_OPTS="--pull --target ${{ matrix.stage }} --build-arg BUILDKIT_INLINE_CACHE=1" \
+            build-native-image save-native-image
+      - name: 'Upload artifacts'
+        uses: 'actions/upload-artifact@v3'
+        with:
+          name: 'dist-common-stages'
+          path: './dist/'
+          retention-days: 1
+
   build:
     name: 'Build ${{ matrix.arch }} image'
-    runs-on: 'ubuntu-latest'
+    needs: ['build-common-stages']
+    runs-on: 'ubuntu-22.04'
     permissions:
       contents: 'read'
     strategy:
@@ -23,13 +48,24 @@ jobs:
     steps:
       - name: 'Checkout project'
         uses: 'actions/checkout@v3'
+      - name: 'Download artifacts'
+        uses: 'actions/download-artifact@v3'
+        with:
+          name: 'dist-common-stages'
+          path: './dist/'
+      - name: 'Load common stages'
+        run: |
+          docker system prune --all --force
+          make IMAGE_REGISTRY="localhost" IMAGE_NAMESPACE="stage" IMAGE_PROJECT="build" load-native-image clean
       - name: 'Register binfmt entries'
         if: "matrix.arch != 'native'"
         run: |
           make binfmt-register
       - name: 'Build and save image'
         run: |
-          make IMAGE_BUILD_OPTS="--pull" "build-${{ matrix.arch }}-image" "save-${{ matrix.arch }}-image"
+          make \
+            IMAGE_BUILD_OPTS="--cache-from localhost/stage/build:latest" \
+            "build-${{ matrix.arch }}-image" "save-${{ matrix.arch }}-image"
       - name: 'Upload artifacts'
         if: "startsWith(github.ref, 'refs/tags/v') && matrix.arch != 'native'"
         uses: 'actions/upload-artifact@v3'
@@ -42,7 +78,7 @@ jobs:
     name: 'Push ${{ matrix.arch }} image'
     if: "startsWith(github.ref, 'refs/tags/v')"
     needs: ['build']
-    runs-on: 'ubuntu-latest'
+    runs-on: 'ubuntu-22.04'
     permissions:
       contents: 'read'
     strategy:
@@ -70,7 +106,7 @@ jobs:
     name: 'Push manifest'
     if: "startsWith(github.ref, 'refs/tags/v')"
     needs: ['push']
-    runs-on: 'ubuntu-latest'
+    runs-on: 'ubuntu-22.04'
     permissions:
       contents: 'read'
     steps:
@@ -90,7 +126,7 @@ jobs:
     name: 'Create GitHub release'
     if: "startsWith(github.ref, 'refs/tags/v')"
     needs: ['push-manifest']
-    runs-on: 'ubuntu-latest'
+    runs-on: 'ubuntu-22.04'
     permissions:
       contents: 'write'
     steps: