helm database postgresql

- add Chart.lock to .gitignore
- update helmfile.yaml with database
- add values.yaml with postgresql
- add Chart.yaml with postgresql

helm/helmfile.yaml

@@ -4,3 +4,9 @@ releases:
     chart: ./charts/01-secrets
     values: []
     historyMax: 3
+
+  - name: database
+    namespace: hlaeja-testing
+    chart: ./charts/02-database
+    values: []
+    historyMax: 3