Separate alpine image

Author: nitrocode

.github/workflows/atlantis-base.yml

@@ -23,7 +23,13 @@ concurrency:
 
 jobs:
   build:
+    strategy:
+      matrix:
+        image_type: [alpine]
     runs-on: ubuntu-22.04
+    env:
+      DOCKER_FILE: "Dockerfile.${{ matrix.image_type }}"
+      IMAGE_SUFFIX: ${{ !contains(matrix.image_type, 'alpine') && '-${{ matrix.image_type }}' || '' }}
     steps:
     - uses: actions/checkout@v3
 
@@ -42,16 +48,20 @@ jobs:
         registry: ghcr.io
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
-    - run: echo "TODAY=$(date +"%Y.%m.%d")" >> $GITHUB_ENV
+
+    - name: Populate release version
+      run: echo "TODAY=$(date +"%Y.%m.%d")" >> $GITHUB_ENV
 
     - name: Build and push atlantis-base:${{env.TODAY}} image
       uses: docker/build-push-action@v3
       with:
         cache-from: type=gha
         cache-to: type=gha,mode=max
         context: docker-base
+        file: ${{ env.DOCKER_FILE }}
         platforms: linux/arm64/v8,linux/amd64,linux/arm/v7
         push: ${{ github.event_name != 'pull_request' }}
         tags: |
-          ghcr.io/${{ github.repository_owner }}/atlantis-base:${{env.TODAY}}
-          ghcr.io/${{ github.repository_owner }}/atlantis-base:latest
+          ghcr.io/${{ github.repository_owner }}/atlantis-base:${{ env.TODAY }}${{ env.IMAGE_SUFFIX }}
+          ghcr.io/${{ github.repository_owner }}/atlantis-base:latest${{ env.IMAGE_SUFFIX }}
+          ghcr.io/${{ github.repository_owner }}/atlantis-base:${{ matrix.image_type }}

.github/workflows/atlantis-image.yml

@@ -9,7 +9,7 @@ on:
       - v*.*.*-pre.* # pre release like, v0.19.0-pre.calendardate
   pull_request:
     paths:
-      - 'Dockerfile'
+      - 'Dockerfile.alpine'
       - '.github/workflows/atlantis-image.yml'
   workflow_dispatch:
 
@@ -19,12 +19,18 @@ concurrency:
 
 jobs:
   build:
+    strategy:
+      matrix:
+        image_type: [alpine]
     runs-on: ubuntu-22.04
     env:
       RELEASE_TYPE: ${{ contains(github.ref, 'pre') && 'pre' || 'stable' }}
       RELEASE_TAG: ${{ contains(github.ref, 'pre') && 'prerelease-latest' || 'latest' }}
+      DOCKER_FILE: "Dockerfile.${{ matrix.image_type }}"
+      IMAGE_SUFFIX: ${{ !contains(matrix.image_type, 'alpine') && '-${{ matrix.image_type }}' || '' }}
     steps:
     - uses: actions/checkout@v3
+
     - uses: actions/setup-go@v3
       with:
         go-version: 1.19
@@ -53,13 +59,14 @@ jobs:
         cache-from: type=gha
         cache-to: type=gha,mode=max
         context: .
+        file: ${{ env.DOCKER_FILE }}
         platforms: linux/arm64/v8,linux/amd64,linux/arm/v7
         push: ${{ github.event_name != 'pull_request' }}
         tags: |
-          ghcr.io/${{ github.repository_owner }}/atlantis:dev
+          ghcr.io/${{ github.repository_owner }}/atlantis:dev${{ env.IMAGE_SUFFIX }}
 
     # Publish release to container registry
-    - name: populate release version
+    - name: Populate release version
       if: |
         contains(fromJson('["push", "pull_request"]'), github.event_name) &&
         startsWith(github.ref, 'refs/tags/')
@@ -74,8 +81,9 @@ jobs:
         cache-from: type=gha
         cache-to: type=gha,mode=max
         context: .
+        file: ${{ env.DOCKER_FILE }}
         platforms: linux/arm64/v8,linux/amd64,linux/arm/v7
         push: ${{ github.event_name != 'pull_request' }}
         tags: |
-          ghcr.io/${{ github.repository_owner }}/atlantis:${{ env.RELEASE_VERSION }}
-          ghcr.io/${{ github.repository_owner }}/atlantis:${{ env.RELEASE_TAG }}
+          ghcr.io/${{ github.repository_owner }}/atlantis:${{ env.RELEASE_VERSION }}${{ env.IMAGE_SUFFIX }}
+          ghcr.io/${{ github.repository_owner }}/atlantis:${{ env.RELEASE_TAG }}${{ env.IMAGE_SUFFIX }}