Migrate to gitea-actions (#8)

Reviewed-on: #8

.gitea/workflows/deploy.yaml

@@ -0,0 +1,37 @@
+name: Deploy
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  deploy:
+    runs-on: cth-ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 3.1.2
+    - run: |
+        gem install bundler
+        bundle install
+        bundle exec jekyll build
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    - run: |
+        ls -la .
+        ls -la _site/
+        pwd
+    - name: Push image
+      uses: docker/build-push-action@v6
+      with:
+        context: .
+        push: true
+        tags: |
+          docker.atomaka.com/atomaka.com:latest
+          docker.atomaka.com/atomaka.com:${{gitea.ref_name}}
+    - name: Deploy to server
+      run: |
+        curl --oauth2-bearer ${{ secrets.WATCHTOWER_TOKEN }} \
+          ${{ secrets.WATCHTOWER_HOST }}/v1/update?images=docker.atomaka.com/atomaka.com

.gitea/workflows/lint.yaml

@@ -0,0 +1,28 @@
+name: Linting
+
+on:
+  pull_request:
+
+jobs:
+  lint:
+    runs-on: cth-ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: addnab/docker-run-action@v3
+      with:
+        image: docker.atomaka.com/mdformat:latest
+        options: --volumes-from=${{ env.JOB_CONTAINER_NAME }}
+        run: |
+          cd ${{ github.workspace }}
+          mdformat --check _posts/
+  build:
+    runs-on: cth-ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 3.1.2
+    - run: |
+        gem install bundler
+        bundle install
+        bundle exec jekyll build