Imagebranchsprint (it-at-m#145)

* image branch sprint

* bump jdk

.github/workflows/build_push_ghcr.yaml

@@ -2,7 +2,7 @@ name: build image and push to ghcr.io
 
 on: 
   push:
-    branches: [main-ls2]
+    branches: ["main-ls2", "sprint"]
 
 env:
   REGISTRY: ghcr.io
@@ -48,8 +48,6 @@ jobs:
         uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          tags: |
-            type=raw,value=main-ls2
           labels: |
             maintainer=it@m, Landeshauptstadt Muenchen (LHM)
       

Dockerfile

@@ -1,3 +1,4 @@
-FROM registry.access.redhat.com/ubi8/openjdk-11:latest
+# For documentation see https://jboss-container-images.github.io/openjdk/
+FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:latest
 
 COPY target/*.jar /deployments/spring-boot-application.jar