use RWO, only celery is using media to write to

Author: bbkz

.github/workflows/lint-test.yml

@@ -48,6 +48,7 @@ jobs:
         if: steps.list-changed.outputs.changed == 'true'
         run: ct lint --target-branch ${{ github.event.repository.default_branch }}
 
+      # https://github.com/marketplace/actions/kind-cluster
       - name: Create kind cluster
         if: steps.list-changed.outputs.changed == 'true'
         uses: helm/kind-action@v1.14.0

charts/wger/values.yaml

@@ -17,7 +17,7 @@ app:
   persistence:
     storageClass: null
     accessModes:
-      - ReadWriteMany
+      - ReadWriteOnce
     sizeMedia: 8Gi
     sizeStatic: 8Gi
     sizeCeleryBeat: 1Gi