Exit init script immediately on error (#16758)

helm/superset/Chart.yaml

@@ -22,7 +22,7 @@ maintainers:
   - name: craig-rueda
     email: craig@craigrueda.com
     url: https://github.com/craig-rueda
-version: 0.3.8
+version: 0.3.9
 dependencies:
 - name: postgresql
   version: 10.2.0

helm/superset/values.yaml

@@ -302,6 +302,7 @@ init:
       command: [ "/bin/sh", "-c", "until nc -zv $DB_HOST $DB_PORT -w1; do echo 'waiting for db'; sleep 1; done" ]
   initscript: |-
     #!/bin/sh
+    set -eu
     echo "Upgrading DB schema..."
     superset db upgrade
     echo "Initializing roles..."