feat: add github workflows

.github/workflows/ci-demo.yaml

@@ -0,0 +1,42 @@
+name: Gitea Actions CI Demo
+run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
+
+on:
+  push:
+    branches:
+      - "main"
+
+jobs:
+  Explore-Gitea-Actions:
+    runs-on: ubuntu-latest
+    container:
+      image: catthehacker/ubuntu:act-latest
+    steps:
+      - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
+      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
+      - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
+      - name: Checkout repository code
+        uses: actions/checkout@v3
+      - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
+      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
+      - name: List files in the repository
+        run: |
+          ls ${{ gitea.workspace }}
+      - run: echo "🍏 This job's status is ${{ job.status }}."
+      - name: Set up Docker Buildx
+        uses: https://github.com/docker/setup-buildx-action@v3
+      - name: Login to Docker Hub
+        uses: https://github.com/docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        uses: https://github.com/docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64
+          tags: |
+            ${{ secrets.DOCKERHUB_USERNAME }}/${{ secrets.DOCKERHUB_REPOSITORY }}:latest
+      - run: echo "🍏 This job's status is ${{ job.status }}."
+