[COMMON] Share deployment configuration in Postgres

When I did diff between deployment-primary and deployment-replica it
turned out that this is pretty much the same file apart from primary
and replica words.

To avoid making the same changes in both files, let's just introduce a
template that can be included with parameter.

Issue-ID: OOM-2246
Change-Id: Ia13b993b9f23008d6be6b3d0e8b745446048de4e
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>

3 files changed, 146 insertions, 246 deletions

diff --git a/kubernetes/common/postgres/templates/_deployment.tpl b/kubernetes/common/postgres/templates/_deployment.tpl
new file mode 100644
index 0000000000..9766cb3fca
--- /dev/null
+++ b/kubernetes/common/postgres/templates/_deployment.tpl
@@ -0,0 +1,144 @@
+{{/*
+# Copyright © 2018 Amdocs, AT&T, Bell Canada
+# Copyright © 2020 Samsung Electronics
+# #
+# # 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.
+*/}}
+
+{{- define "common.postgres.deployment" -}}
+  {{- $dot := .dot }}
+  {{- $pgMode := .pgMode }}
+apiVersion: apps/v1beta1
+kind: Deployment
+metadata:
+  name: {{ include "common.fullname" $dot }}-{{ $pgMode }}
+  namespace: {{ include "common.namespace" $dot }}
+  labels:
+    app: {{ include "common.name" $dot }}-{{ $pgMode }}
+    chart: {{ $dot.Chart.Name }}-{{ $dot.Chart.Version | replace "+" "_" }}
+    release: {{ include "common.release" $dot }}
+    heritage: {{ $dot.Release.Service }}
+    name: "{{ index $dot.Values "container" "name" $pgMode }}"
+spec:
+  serviceName: {{ $dot.Values.service.name }}
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: {{ include "common.name" $dot }}-{{ $pgMode }}
+        release: {{ include "common.release" $dot }}
+        name: "{{ index $dot.Values "container" "name" $pgMode }}"
+    spec:
+      initContainers:
+      - name: init-sysctl
+        command:
+        - /bin/sh
+        - -c
+        - |
+          chown 26:26 /podroot/;
+          chmod 700 /podroot/;
+        image: {{ $dot.Values.global.busyboxRepository | default $dot.Values.busyboxRepository }}/{{ $dot.Values.busyboxImage }}
+        imagePullPolicy: {{ $dot.Values.global.pullPolicy | default $dot.Values.pullPolicy }}
+        volumeMounts:
+        - name: {{ include "common.fullname" $dot }}-data
+          mountPath: /podroot/
+      containers:
+      - name: {{ include "common.name" $dot }}
+        image: "{{ $dot.Values.postgresRepository }}/{{ $dot.Values.image }}"
+        imagePullPolicy: {{ $dot.Values.global.pullPolicy | default $dot.Values.pullPolicy }}
+        ports:
+        - containerPort: {{ $dot.Values.service.internalPort }}
+          name: {{ $dot.Values.service.portName }}
+        # disable liveness probe when breakpoints set in debugger
+        # so K8s doesn't restart unresponsive container
+        {{- if eq $dot.Values.liveness.enabled true }}
+        livenessProbe:
+          tcpSocket:
+            port: {{ $dot.Values.service.internalPort }}
+          initialDelaySeconds: {{ $dot.Values.liveness.initialDelaySeconds }}
+          periodSeconds: {{ $dot.Values.liveness.periodSeconds }}
+          timeoutSeconds: {{ $dot.Values.liveness.timeoutSeconds }}
+        {{- end }}
+        readinessProbe:
+          tcpSocket:
+            port: {{ $dot.Values.service.internalPort }}
+          initialDelaySeconds: {{ $dot.Values.readiness.initialDelaySeconds }}
+          periodSeconds: {{ $dot.Values.readiness.periodSeconds }}
+        env:
+        - name: PGHOST
+          value: /tmp
+        - name: PG_PRIMARY_USER
+          value: primaryuser
+        - name: PG_MODE
+          value: {{ $pgMode }}
+        - name: PG_PRIMARY_HOST
+          value: "{{ $dot.Values.container.name.primary }}"
+        - name: PG_REPLICA_HOST
+          value: "{{ $dot.Values.container.name.replica }}"
+        - name: PG_PRIMARY_PORT
+          value: "{{ $dot.Values.service.internalPort }}"
+        - name: PG_PRIMARY_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ template "common.fullname" $dot }}
+              key: pg-primary-password
+        - name: PG_USER
+          value: "{{ $dot.Values.config.pgUserName }}"
+        - name: PG_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ template "common.fullname" $dot }}
+              key: pg-user-password
+        - name: PG_DATABASE
+          value: "{{ $dot.Values.config.pgDatabase }}"
+        - name: PG_ROOT_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ template "common.fullname" $dot }}
+              key: pg-root-password
+        volumeMounts:
+        - name: pool-hba-conf
+          mountPath: /pgconf/pool_hba.conf
+          subPath: pool_hba.conf
+        - mountPath: /pgdata
+          name: {{ include "common.fullname" $dot }}-data
+        - mountPath: /backup
+          name: {{ include "common.fullname" $dot }}-backup
+          readOnly: true
+        resources:
+{{ include "common.resources" $dot | indent 12 }}
+        {{- if $dot.Values.nodeSelector }}
+        nodeSelector:
+{{ toYaml $dot.Values.nodeSelector | indent 10 }}
+        {{- end -}}
+        {{- if $dot.Values.affinity }}
+        affinity:
+{{ toYaml $dot.Values.affinity | indent 10 }}
+        {{- end }}
+      volumes:
+      - name: localtime
+        hostPath:
+          path: /etc/localtime
+      - name: {{ include "common.fullname" $dot }}-backup
+        emptyDir: {}
+      - name: {{ include "common.fullname" $dot }}-data
+{{- if $dot.Values.persistence.enabled }}
+        persistentVolumeClaim:
+            claimName: {{ include "common.fullname" $dot }}-{{ $pgMode }}
+{{- else }}
+        emptyDir: {}
+{{ end }}
+      - name: pool-hba-conf
+        configMap:
+          name: {{ include "common.fullname" $dot }}
+{{- end -}}
\ No newline at end of file
diff --git a/kubernetes/common/postgres/templates/deployment-primary.yaml b/kubernetes/common/postgres/templates/deployment-primary.yaml
index b234dc2092..c8a000142e 100644
--- a/kubernetes/common/postgres/templates/deployment-primary.yaml
+++ b/kubernetes/common/postgres/templates/deployment-primary.yaml
@@ -13,126 +13,4 @@
 # # See the License for the specific language governing permissions and
 # # limitations under the License.
 */}}
-apiVersion: apps/v1beta1
-kind: Deployment
-metadata:
-  name: {{ include "common.fullname" . }}-primary
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}-primary
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    release: {{ include "common.release" . }}
-    heritage: {{ .Release.Service }}
-    name: "{{ .Values.container.name.primary }}"
-spec:
-  serviceName: {{ .Values.service.name }}
-  replicas: 1
-  template:
-    metadata:
-      labels:
-        app: {{ include "common.name" . }}-primary
-        release: {{ include "common.release" . }}
-        name: "{{ .Values.container.name.primary }}"
-    spec:
-      initContainers:
-      - name: init-sysctl
-        command:
-        - /bin/sh
-        - -c
-        - |
-          chown 26:26 /podroot/;
-          chmod 700 /podroot/;
-        image: {{ .Values.global.busyboxRepository | default .Values.busyboxRepository }}/{{ .Values.busyboxImage }}
-        imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-        volumeMounts:
-        - name: {{ include "common.fullname" . }}-data
-          mountPath: /podroot/
-      containers:
-      - name: {{ include "common.name" . }}
-        image: "{{ .Values.postgresRepository }}/{{ .Values.image }}"
-        imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-        ports:
-        - containerPort: {{ .Values.service.internalPort }}
-          name: {{ .Values.service.portName }}
-        # disable liveness probe when breakpoints set in debugger
-        # so K8s doesn't restart unresponsive container
-        {{- if eq .Values.liveness.enabled true }}
-        livenessProbe:
-          tcpSocket:
-            port: {{ .Values.service.internalPort }}
-          initialDelaySeconds: {{ .Values.liveness.initialDelaySeconds }}
-          periodSeconds: {{ .Values.liveness.periodSeconds }}
-          timeoutSeconds: {{ .Values.liveness.timeoutSeconds }}
-        {{- end }}
-        readinessProbe:
-          tcpSocket:
-            port: {{ .Values.service.internalPort }}
-          initialDelaySeconds: {{ .Values.readiness.initialDelaySeconds }}
-          periodSeconds: {{ .Values.readiness.periodSeconds }}
-        env:
-        - name: PGHOST
-          value: /tmp
-        - name: PG_PRIMARY_USER
-          value: primaryuser
-        - name: PG_MODE
-          value: primary
-        - name: PG_PRIMARY_HOST
-          value: "{{ .Values.container.name.primary }}"
-        - name: PG_REPLICA_HOST
-          value: "{{ .Values.container.name.replica }}"
-        - name: PG_PRIMARY_PORT
-          value: "{{ .Values.service.internalPort }}"
-        - name: PG_PRIMARY_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: {{ template "common.fullname" . }}
-              key: pg-primary-password
-        - name: PG_USER
-          value: "{{ .Values.config.pgUserName }}"
-        - name: PG_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: {{ template "common.fullname" . }}
-              key: pg-user-password
-        - name: PG_DATABASE
-          value: "{{ .Values.config.pgDatabase }}"
-        - name: PG_ROOT_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: {{ template "common.fullname" . }}
-              key: pg-root-password
-        volumeMounts:
-        - name: pool-hba-conf
-          mountPath: /pgconf/pool_hba.conf
-          subPath: pool_hba.conf
-        - mountPath: /pgdata
-          name: {{ include "common.fullname" . }}-data
-        - mountPath: /backup
-          name: {{ include "common.fullname" . }}-backup
-          readOnly: true
-        resources:
-{{ include "common.resources" . | indent 12 }}
-        {{- if .Values.nodeSelector }}
-        nodeSelector:
-{{ toYaml .Values.nodeSelector | indent 10 }}
-        {{- end -}}
-        {{- if .Values.affinity }}
-        affinity:
-{{ toYaml .Values.affinity | indent 10 }}
-        {{- end }}
-      volumes:
-      - name: localtime
-        hostPath:
-          path: /etc/localtime
-      - name: {{ include "common.fullname" . }}-backup
-        emptyDir: {}
-      - name: {{ include "common.fullname" . }}-data
-{{- if .Values.persistence.enabled }}
-        persistentVolumeClaim:
-            claimName: {{ include "common.fullname" . }}-primary
-{{- else }}
-        emptyDir: {}
-{{ end }}
-      - name: pool-hba-conf
-        configMap:
-          name: {{ include "common.fullname" . }}
+{{ include "common.postgres.deployment" (dict "dot" . "pgMode" "primary") }}
diff --git a/kubernetes/common/postgres/templates/deployment-replica.yaml b/kubernetes/common/postgres/templates/deployment-replica.yaml
index 72a8736e17..dc19c2d985 100644
--- a/kubernetes/common/postgres/templates/deployment-replica.yaml
+++ b/kubernetes/common/postgres/templates/deployment-replica.yaml
@@ -13,126 +13,4 @@
 # # See the License for the specific language governing permissions and
 # # limitations under the License.
 */}}
-apiVersion: apps/v1beta1
-kind: Deployment
-metadata:
-  name: {{ include "common.fullname" . }}-replica
-  namespace: {{ include "common.namespace" . }}
-  labels:
-    app: {{ include "common.name" . }}-replica
-    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
-    release: {{ include "common.release" . }}
-    heritage: {{ .Release.Service }}
-    name: "{{ .Values.container.name.replica }}"
-spec:
-  serviceName: {{ .Values.service.name }}
-  replicas: 1
-  template:
-    metadata:
-      labels:
-        app: {{ include "common.name" . }}-replica
-        release: {{ include "common.release" . }}
-        name: "{{ .Values.container.name.replica }}"
-    spec:
-      initContainers:
-      - name: init-sysctl
-        command:
-        - /bin/sh
-        - -c
-        - |
-          chown 26:26 /podroot/;
-          chmod 700 /podroot/;
-        image: {{ .Values.global.busyboxRepository | default .Values.busyboxRepository }}/{{ .Values.busyboxImage }}
-        imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-        volumeMounts:
-        - name: {{ include "common.fullname" . }}-data
-          mountPath: /podroot/
-      containers:
-      - name: {{ include "common.name" . }}
-        image: "{{ .Values.postgresRepository }}/{{ .Values.image }}"
-        imagePullPolicy: {{ .Values.global.pullPolicy | default .Values.pullPolicy }}
-        ports:
-        - containerPort: {{ .Values.service.internalPort }}
-          name: {{ .Values.service.portName }}
-        # disable liveness probe when breakpoints set in debugger
-        # so K8s doesn't restart unresponsive container
-        {{- if eq .Values.liveness.enabled true }}
-        livenessProbe:
-          tcpSocket:
-            port: {{ .Values.service.internalPort }}
-          initialDelaySeconds: {{ .Values.liveness.initialDelaySeconds }}
-          periodSeconds: {{ .Values.liveness.periodSeconds }}
-          timeoutSeconds: {{ .Values.liveness.timeoutSeconds }}
-        {{end -}}
-        readinessProbe:
-          tcpSocket:
-            port: {{ .Values.service.internalPort }}
-          initialDelaySeconds: {{ .Values.readiness.initialDelaySeconds }}
-          periodSeconds: {{ .Values.readiness.periodSeconds }}
-        env:
-        - name: PGHOST
-          value: /tmp
-        - name: PG_PRIMARY_USER
-          value: primaryuser
-        - name: PG_MODE
-          value: replica
-        - name: PG_PRIMARY_HOST
-          value: "{{.Values.container.name.primary}}"
-        - name: PG_REPLICA_HOST
-          value: "{{.Values.container.name.replica}}"
-        - name: PG_PRIMARY_PORT
-          value: "{{.Values.service.internalPort}}"
-        - name: PG_PRIMARY_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: {{ template "common.fullname" . }}
-              key: pg-primary-password
-        - name: PG_USER
-          value: "{{.Values.config.pgUserName}}"
-        - name: PG_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: {{ template "common.fullname" . }}
-              key: pg-user-password
-        - name: PG_DATABASE
-          value: "{{.Values.config.pgDatabase}}"
-        - name: PG_ROOT_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: {{ template "common.fullname" . }}
-              key: pg-root-password
-        volumeMounts:
-        - name: pool-hba-conf
-          mountPath: /pgconf/pool_hba.conf
-          subPath: pool_hba.conf
-        - mountPath: /pgdata
-          name: {{ include "common.fullname" . }}-data
-        - mountPath: /backup
-          name: {{ include "common.fullname" . }}-backup
-          readOnly: true
-        resources:
-{{ include "common.resources" . | indent 12 }}
-        {{- if .Values.nodeSelector }}
-        nodeSelector:
-{{ toYaml .Values.nodeSelector | indent 10 }}
-        {{- end -}}
-        {{- if .Values.affinity }}
-        affinity:
-{{ toYaml .Values.affinity | indent 10 }}
-        {{- end }}
-      volumes:
-      - name: localtime
-        hostPath:
-          path: /etc/localtime
-      - name: {{ include "common.fullname" . }}-backup
-        emptyDir: {}
-      - name: {{ include "common.fullname" . }}-data
-{{- if .Values.persistence.enabled }}
-        persistentVolumeClaim:
-            claimName: {{ include "common.fullname" . }}-replica
-{{- else }}
-        emptyDir: {}
-{{ end }}
-      - name: pool-hba-conf
-        configMap:
-          name: {{ include "common.fullname" . }}
+{{ include "common.postgres.deployment" (dict "dot" . "pgMode" "replica") }}