[ATMOSPHERE-311] Add Ironic (#1711)

This is an automated cherry-pick of #1697
/assign mnaser
diff --git a/charts/ironic/templates/secret-db.yaml b/charts/ironic/templates/secret-db.yaml
new file mode 100644
index 0000000..6d7705e
--- /dev/null
+++ b/charts/ironic/templates/secret-db.yaml
@@ -0,0 +1,30 @@
+{{/*
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/}}
+
+{{- if .Values.manifests.secret_db }}
+{{- $envAll := . }}
+{{- range $key1, $userClass := tuple "admin" "ironic" }}
+{{- $secretName := index $envAll.Values.secrets.oslo_db $userClass }}
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ $secretName }}
+  annotations:
+{{ tuple "oslo_db" $userClass $envAll | include "helm-toolkit.snippets.custom_secret_annotations" | indent 4 }}
+type: Opaque
+data:
+  DB_CONNECTION: {{ tuple "oslo_db" "internal" $userClass "mysql" $envAll | include "helm-toolkit.endpoints.authenticated_endpoint_uri_lookup" | b64enc -}}
+{{- end }}
+{{- end }}