[postgresql] Support hostPath volume for archive mode

Also use DirectoryOrCreate type for hostPath volumes

Change-Id: Iad095ff945b8b95dd418249a1e657d48c8cd9926

postgresql/templates/statefulset.yaml

@@ -279,10 +279,15 @@ spec:
         - name: postgresql-data
           hostPath:
             path: {{ .Values.storage.host.host_path }}
+            type: DirectoryOrCreate
+{{- if  eq .Values.conf.postgresql.archive_mode "on" }}
+        - name: postgresql-archive
+          hostPath:
+            path: {{ .Values.storage.host.archive_host_path }}
+            type: DirectoryOrCreate
 {{- end }}
-{{- if or (eq .Values.conf.postgresql.archive_mode "on" )  (eq .Values.storage.pvc.enabled true) }}
+{{- else }}
   volumeClaimTemplates:
-{{- if  .Values.storage.pvc.enabled }}
     - metadata:
         name: postgresql-data
         annotations:
@@ -292,7 +297,6 @@ spec:
         resources:
           requests:
             storage: {{ .Values.storage.pvc.size }}
-{{- end }}
 {{- if  eq .Values.conf.postgresql.archive_mode "on" }}
     - metadata:
         name: postgresql-archive

postgresql/values.yaml

@@ -181,6 +181,7 @@ storage:
     class_path: volume.beta.kubernetes.io/storage-class
   host:
     host_path: /data/openstack-helm/postgresql
+    archive_host_path: /data/openstack-helm/postgresql-archive
   mount:
     path: /var/lib/postgresql
     subpath: .

releasenotes/notes/postgresql-e1a02dbbe6601b0f.yaml

@@ -0,0 +1,5 @@
+---
+postgresql:
+  - Add support of hostPath volume for archive mode
+  - Use DirectoryOrCreate type for hostPath volumes
+...

tools/deployment/db/postgresql.sh

@@ -19,15 +19,15 @@ set -xe
 : ${OSH_VALUES_OVERRIDES_PATH:="../openstack-helm/values_overrides"}
 : ${OSH_EXTRA_HELM_ARGS:=""}
 : ${OSH_EXTRA_HELM_ARGS_POSTGRESQL:="$(helm osh get-values-overrides -p ${OSH_VALUES_OVERRIDES_PATH} -c postgresql ${FEATURES})"}
+: ${NAMESPACE:=openstack}
 
 helm upgrade --install postgresql ${OSH_HELM_REPO}/postgresql \
-    --namespace=osh-infra \
-    --set monitoring.prometheus.enabled=true \
-    --set storage.pvc.size=1Gi \
-    --set storage.pvc.enabled=true \
+    --namespace=${NAMESPACE} \
+    ${MONITORING_HELM_ARGS:="--set monitoring.prometheus.enabled=true"} \
     --set pod.replicas.server=1 \
+    ${VOLUME_HELM_ARGS:="--set storage.pvc.enabled=false --set storage.host.host_path=/tmp/postgresql-data --set conf.postgresql.archive_mode=off"} \
     ${OSH_EXTRA_HELM_ARGS} \
     ${OSH_EXTRA_HELM_ARGS_POSTGRESQL}
 
 #NOTE: Wait for deploy
-helm osh wait-for-pods osh-infra
+helm osh wait-for-pods ${NAMESPACE}