add building workflow

.gitea/workflows/building.yaml

@@ -0,0 +1,36 @@
+name: Building base images
+on: 
+  push:
+    tags:
+      - 'build*'
+
+jobs:
+  building-base-images:
+    runs-on: alt-sisyphus
+    steps:
+      - name: Update apt
+        uses: actions/init-alt-env@v1
+      - name: Install requires
+        run: |
+          echo "apt-get install -y python3-module-jinja2 json podman jq wget curl"
+          apt-get install -y python3-module-jinja2 json podman jq wget curl
+          echo "apt-get install -y qemu-user-static-binfmt-aarch64 qemu-user-static-binfmt-riscv qemu-user-static-binfmt-loongarch"
+          apt-get install -y qemu-user-static-binfmt-aarch64 qemu-user-static-binfmt-riscv qemu-user-static-binfmt-loongarch
+      - name: Check workspace
+        run: |
+          repourl=$(echo $GU | cut -d '/' -f 3)
+          echo "URL=$repourl" >> ${GITHUB_ENV}
+          echo "URL=$repourl"
+      - name: Check out current repo
+        uses: actions/checkout@v4
+      - name: Login podman gitea
+        run: |
+          echo "podman login ${{ env.URL }}"
+          podman login --username $P_USER --password $P_PASS ${{ env.URL }}          
+        env:
+          P_USER: ${{ secrets.PODMAN_USER }}
+          P_PASS: ${{ secrets.PODMAN_PASS }}
+      - name: Run building script
+        id: build-script
+        run: |
+          ${{ gitea.workspace }}/build.py