[workflows] rename .gitea to .forgejo, modify .gitignore

.forgejo/workflows/build.yml

@@ -0,0 +1,55 @@
+name: Build and push Docker image
+
+on:
+  push:
+    branches:
+      - main
+
+# Secrets you have to set up for this to work:
+# REPO_DOMAIN: The domain of your gitea instance (eg. https://git.cool.dev)
+# REPO_TOKEN: A gitea access token for the repo
+# REGISTRY_USERNAME/PASSWORD: The username and password for the docker registry of choice
+env:
+  DOCKER_REPO: ${{ secrets.REPO_DOMAIN }}/jo
+  DOCKER_TAG: latest
+  GITEA_REPO: jo/expresstemplate
+  GITEA_TOKEN: ${{ secrets.REPO_TOKEN }}
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set current date and time
+        run: echo "CURRENT_DATE=$(date +'%Y-%m-%d %H:%M:%S')" >> $GITHUB_ENV
+
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Install Docker
+        run: |
+          apt-get update
+          apt-get -y install apt-transport-https ca-certificates curl gnupg lsb-release
+          curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
+          echo "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu focal stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
+          apt-get update
+          apt-get -y install docker-ce docker-ce-cli containerd.io          
+
+      - name: Login to Docker registry
+        uses: docker/login-action@v1
+        with:
+          registry: ${{ secrets.REPO_DOMAIN }}
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Build Docker image
+        run: |
+          docker build -t ${DOCKER_REPO}:${DOCKER_TAG} .
+          docker tag ${DOCKER_REPO}:${DOCKER_TAG} ${{ secrets.REPO_DOMAIN }}/${GITEA_REPO}:${DOCKER_TAG}          
+
+      - name: Push Docker image to Gitea package
+        run: |
+          docker push ${{ secrets.REPO_DOMAIN }}/${GITEA_REPO}:${DOCKER_TAG}
+          curl -X POST -H "Authorization: token ${GITEA_TOKEN}" \
+               -H "Content-Type: application/json" \
+               -d '{"tag_name": "'"${DOCKER_TAG}"'"}' \
+               https://${{ secrets.REPO_DOMAIN }}/api/v1/repos/${GITEA_REPO}/releases