Initial postgresql chart (#154)

Makefile

@@ -1,12 +1,12 @@
-.PHONY: ceph bootstrap mariadb keystone memcached rabbitmq common openstack neutron nova cinder heat maas all clean
+.PHONY: ceph bootstrap mariadb postgresql keystone memcached rabbitmq common openstack neutron nova cinder heat maas all clean
 
 B64_DIRS := common/secrets
 B64_EXCLUDE := $(wildcard common/secrets/*.b64)
 
-CHARTS := ceph mariadb rabbitmq memcached keystone glance horizon neutron nova cinder heat maas openstack
+CHARTS := ceph mariadb postgresql rabbitmq memcached keystone glance horizon neutron nova cinder heat maas openstack
 COMMON_TPL := common/templates/_globals.tpl
 
-all: common ceph bootstrap mariadb rabbitmq memcached keystone glance horizon neutron nova cinder heat maas openstack
+all: common ceph bootstrap mariadb postgresql rabbitmq memcached keystone glance horizon neutron nova cinder heat maas openstack
 
 common: build-common
 
@@ -17,6 +17,8 @@ bootstrap: build-bootstrap
 
 mariadb: build-mariadb
 
+postgresql: build-postgresql
+
 keystone: build-keystone
 
 cinder: build-cinder

postgresql/Chart.yaml

@@ -0,0 +1,3 @@
+description: A Helm chart for postgresql
+name: postgresql
+version: 0.1.0

postgresql/README.md

@@ -0,0 +1,11 @@
+# openstack-helm/postgresql
+
+This chart leverages StatefulSets, with persistent storage.
+
+The StatefulSets all leverage PVCs to provide stateful storage to /var/lib/postgresql.
+
+You must ensure that your control nodes that should receive postgresql instances are labeled with openstack-control-plane=enabled, or whatever you have configured in values.yaml for the label configuration:
+
+```
+kubectl label nodes openstack-control-plane=enabled --all
+```

postgresql/requirements.yaml

@@ -0,0 +1,4 @@
+dependencies:
+  - name: common
+    repository: http://localhost:8879/charts
+    version: 0.1.0

postgresql/templates/deployment.yaml

@@ -0,0 +1,54 @@
+apiVersion: apps/v1beta1
+kind: StatefulSet
+metadata:
+  name: {{ .Values.service_name }}
+spec:
+  serviceName: {{ .Values.service_name }}
+  replicas: {{ .Values.replicas }}
+  template:
+    metadata:
+      labels:
+        app: {{ .Values.service_name }}
+    spec:
+      nodeSelector:
+        {{ .Values.labels.node_selector_key }}: {{ .Values.labels.node_selector_value }}
+      containers:
+      - name: {{ .Values.service_name }}
+        image: {{ .Values.images.postgresql }}
+        imagePullPolicy: {{ .Values.images.pull_policy }}
+        ports:
+        - containerPort: {{ .Values.network.port.postgresql }}
+        livenessProbe:
+          exec:
+            command:
+            - pg_isready
+          initialDelaySeconds: 20
+          timeoutSeconds: 5
+        readinessProbe:
+          exec:
+            command:
+            - pg_isready
+          initialDelaySeconds: 20
+          timeoutSeconds: 5
+        resources:
+{{ toYaml .Values.resources | indent 10 }}
+        volumeMounts:
+        - name: postgresql-data
+          mountPath: /var/lib/postgresql
+      volumes:
+{{- if .Values.development.enabled }}
+      - name: postgresql-data
+        hostPath:
+          path: {{ .Values.development.storage_path }}
+{{- else }}
+  volumeClaimTemplates:
+  - metadata:
+      name: postgresql-data
+      annotations:
+        {{ .Values.volume.class_path }}: {{ .Values.volume.class_name }}
+    spec:
+      accessModes: [ "ReadWriteOnce" ]
+      resources:
+        requests:
+          storage: {{ .Values.volume.size }}
+{{- end }}

postgresql/templates/service.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Values.service_name }}
+spec:
+  ports:
+    - name: db
+      port: {{ .Values.network.port.postgresql }}
+  selector:
+    app: {{ .Values.service_name }}

postgresql/values.yaml

@@ -0,0 +1,29 @@
+# Default values for postgresql.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+development:
+  enabled: true
+  storage_path: /data/openstack-helm/postgresql
+
+replicas: 1 #only 1 replica currently supported
+
+service_name: postgresql
+
+# using dockerhub postgresql: https://hub.docker.com/r/library/postgres/tags/
+images:
+  postgresql: "docker.io/postgres:9.5"
+  pull_policy: IfNotPresent
+
+volume:
+  class_path: volume.beta.kubernetes.io/storage-class
+  class_name: general
+  size: 20Gi
+
+labels:
+  node_selector_key: openstack-control-plane
+  node_selector_value: enabled
+
+network:
+  port:
+    postgresql: 5432