fix: use full svc name and namespace for METADATA_GRPC_SERVICE_HOST e…

…nv var (#361)

The METADATA_GRPC_SERVICE_HOST env var has to include the name
and namespace of the metadata grpc server, otherwise pipeline runs
end in errors when trying to write in the metadata SQLite DB.

This commit reverts a change introduced by canonical/kfp-operators#3312.

charms/kfp-profile-controller/src/charm.py

@@ -49,7 +49,7 @@
 # This service name must be the Service from the mlmd-operator
 # FIXME: leaving it hardcoded now, but we should share this
 # host and port through relation data
-METADATA_GRPC_SERVICE_HOST = "metadata-grpc-service"
+METADATA_GRPC_SERVICE_HOST = "metadata-grpc-service.kubeflow"
 METADATA_GRPC_SERVICE_PORT = "8080"
 NAMESPACE_LABEL = "pipelines.kubeflow.org/enabled"
 SYNC_CODE_FILE = Path("files/upstream/sync.py")