ci: add gitea pipeline

.gitea/workflows/docker-image.yml

@@ -0,0 +1,72 @@
+name: Docker Image build
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  schedule:
+    # * is a special character in YAML so you have to quote this string
+    - cron: "5 4 * * *"
+
+jobs:
+  build-and-push-container:
+    name: Build Container
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            git.dev-null.rocks/alexohneander/sim_free
+          tags: |
+            type=schedule,pattern={{date 'YYYYMMDDHHMM'}}
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha
+
+      - name: Set up Docker Context for Buildx
+        id: buildx-context
+        run: |
+          export DOCKER_HOST=tcp://docker:2376/
+          export DOCKER_TLS_CERTDIR="/certs"
+          export DOCKER_TLS_VERIFY=1
+          export DOCKER_CERT_PATH="/certs/client"
+          docker context create builders
+
+      - name: Setup Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          # buildkitd-flags: --debug
+          endpoint: builders
+        env:
+          DOCKER_HOST: "tcp://docker:2376/"
+          DOCKER_TLS_CERTDIR: "/certs"
+          DOCKER_TLS_VERIFY: 1
+          DOCKER_CERT_PATH: "/certs/client"
+
+      - name: Login to Gitea
+        uses: docker/login-action@v3
+        with:
+          registry: git.dev-null.rocks
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GA_TOKEN }}
+
+      - name: Build and push the image
+        uses: docker/build-push-action@v5
+        with:
+          file: Dockerfile
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+        env:
+          DOCKER_HOST: "tcp://docker:2376/"
+          DOCKER_TLS_CERTDIR: "/certs"
+          DOCKER_TLS_VERIFY: 1
+          DOCKER_CERT_PATH: "/certs/client"