added experimental sage image

.gitea/workflows/build-jupyter-ganymede.yaml

@@ -0,0 +1,36 @@
+name: CI
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - 'jupyter-ganymede/*'
+      
+jobs:
+  "Build docker images":
+    runs-on: woryzen
+    steps:
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          driver: docker-container
+      -
+        name: Login to Gitea container registry
+        uses: docker/login-action@v3
+        with:
+          registry: gitea.woggioni.net
+          username: woggioni
+          password: ${{ secrets.PUBLISHER_TOKEN }}
+      -
+        name: Build and push jupyter-ganymede image
+        uses: docker/build-push-action@v5.3.0
+        with:
+          context: "{{defaultContext}}:jupyter-ganymede"
+          platforms: linux/amd64,linux-arm64
+          push: true
+          tags: gitea.woggioni.net/woggioni/jupyter-ganymede:latest
+          cache-from: type=registry,ref=gitea.woggioni.net/woggioni/jupyter-ganymede:buildx
+          cache-to: type=registry,mode=max,compression=zstd,image-manifest=true,oci-mediatypes=true,ref=gitea.woggioni.net/woggioni/jupyter-ganymede:buildx