Ajout d'un workflow GitHub pour la construction et le déploiement d'i…

…mages Docker avec gestion des tags et authentification au registre GHCR.

.github/workflows/docker.yml

@@ -0,0 +1,44 @@
+name: ci
+
+on:
+  push:
+    branches:
+      - "main"
+    tags:
+      - "*.*.*"
+  pull_request:
+    branches:
+      - "main"
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set Docker tags
+        id: meta
+        run: |
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            echo "tags=ghcr.io/${{ github.repository }}:${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+          else
+            echo "tags=ghcr.io/${{ github.repository }}:dev" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Login to GHCR
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}