Build on gitea ation (#2)

Reviewed-on: #2
Co-authored-by: Julien Fastré <julien.fastre@champs-libres.coop>
Co-committed-by: Julien Fastré <julien.fastre@champs-libres.coop>

.gitea/workflows/build-image.yml

@@ -0,0 +1,52 @@
+name: Build an image to deploy website
+
+on:
+  # Runs on pushes targeting the default branch
+  push
+    #tags:
+    #  - v*
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  # Build jobs
+  build:
+    runs-on: cth-ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: https://github.com/actions/checkout@v4
+
+      - name: update packages
+        run: apt-get update
+
+      - name: Setup pandoc
+        uses: https://github.com/r-lib/actions/setup-pandoc@v1
+        with:
+          pandoc-version: '3.4'
+
+      - name: Build presentation main
+        run: pandoc -t revealjs --resource-path=.:presentation/src/ -s presentation/src/index.md -o presentation/src/index.html
+
+      - name: Build presentation essaimage
+        run: pandoc -t revealjs --resource-path=.:presentation/src/ -s presentation/src/essaimage.md -o presentation/src/essaimage.html
+
+      - name: Set up Docker Buildx
+        uses: https://github.com/docker/setup-buildx-action@v3
+
+      - name: Login to registry
+        uses: https://github.com/docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          registry: 'h3m6q87t.gra7.container-registry.ovh.net'
+
+      - name: Build and push
+        uses: https://github.com/docker/build-push-action@v5
+        with:
+          context: presentation/
+          push: true
+          tags: 'h3m6q87t.gra7.container-registry.ovh.net/prez-concept-chill/presentation:${{ github.ref_name }}'