refac(workflow): use matrix to compile different docker images (#740)

I have made this to speed up and make it more robust.

The matrix executes the jobs in parallel, doing some things perhaps double. But making overall management easier due to the simple defined variables at the top of the matrix declaration.

Co-authored-by: Daan Selen <dselen@systemec.nl>
Reviewed-on: https://gitea.com/gitea/act_runner/pulls/740
Reviewed-by: techknowlogick <techknowlogick@noreply.gitea.com>
Co-authored-by: Daan Selen <dselen@nerthus.nl>
Co-committed-by: Daan Selen <dselen@nerthus.nl>

.gitea/workflows/release-nightly.yml

@@ -1,10 +1,17 @@
+---
 name: release-nightly
 
 on:
+  workflow_dispatch:
   push:
-    branches: [main]
+    branches:
+      - 'main'
     tags:
-      - "*"
+      - '*'
+
+env:
+  DOCKER_ORG: gitea
+  DOCKER_LATEST: nightly
 
 jobs:
   goreleaser:
@@ -12,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-depth: 0 # all history for all branches and tags
+          fetch-depth: 0
       - uses: actions/setup-go@v5
         with:
           go-version-file: "go.mod"
@@ -30,16 +37,22 @@ jobs:
           S3_BUCKET: ${{ secrets.AWS_BUCKET }}
           GORELEASER_FORCE_TOKEN: "gitea"
           GITEA_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
   release-image:
     runs-on: ubuntu-latest
-    container:
-      image: catthehacker/ubuntu:act-latest
-    env:
-      DOCKER_ORG: gitea
-      DOCKER_LATEST: nightly
+    strategy:
+      matrix:
+        variant:
+          - target: basic
+            tag_suffix: ""
+          - target: dind
+            tag_suffix: "-dind"
+          - target: dind-rootless
+            tag_suffix: "-dind-rootless"
+
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0 # all history for all branches and tags
 
@@ -55,47 +68,18 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: Get Meta
-        id: meta
-        run: |
-          echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}') >> $GITHUB_OUTPUT
-          echo REPO_VERSION=${GITHUB_REF_NAME#v} >> $GITHUB_OUTPUT
+      - name: Echo the tag
+        run: echo "${{ env.DOCKER_ORG }}/act_runner:nightly${{ matrix.variant.tag_suffix }}"
 
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: ./Dockerfile
-          target: basic
+          target: ${{ matrix.variant.target }}
           platforms: |
             linux/amd64
             linux/arm64
           push: true
           tags: |
-            ${{ env.DOCKER_ORG }}/${{ steps.meta.outputs.REPO_NAME }}:${{ env.DOCKER_LATEST }}
-
-      - name: Build and push dind
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          file: ./Dockerfile
-          target: dind
-          platforms: |
-            linux/amd64
-            linux/arm64
-          push: true
-          tags: |
-            ${{ env.DOCKER_ORG }}/${{ steps.meta.outputs.REPO_NAME }}:${{ env.DOCKER_LATEST }}-dind
-
-      - name: Build and push dind-rootless
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          file: ./Dockerfile
-          target: dind-rootless
-          platforms: |
-            linux/amd64
-            linux/arm64
-          push: true
-          tags: |
-            ${{ env.DOCKER_ORG }}/${{ steps.meta.outputs.REPO_NAME }}:${{ env.DOCKER_LATEST }}-dind-rootless
+            ${{ env.DOCKER_ORG }}/act_runner:nightly${{ matrix.variant.tag_suffix }}