Postgres db helm charts

charts/postgres/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v2
+name: postgres
+description: A Helm chart to deploy a PostgreSQL
+type: application
+version: 0.1.0

charts/postgres/templates/configmap.yaml

@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-init
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+data:
+  init.sql: |
+    -- Create the telemetry user
+    SELECT 'CREATE USER telemetry'
+    WHERE NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = 'telemetry')\gexec
+
+    -- Create staging database and grant telemetry user access
+    SELECT 'CREATE DATABASE staging WITH TEMPLATE template0'
+    WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'staging')\gexec
+    GRANT ALL PRIVILEGES ON DATABASE staging TO telemetry;
+
+    -- Create operational database and grant telemetry user access
+    SELECT 'CREATE DATABASE operational WITH TEMPLATE template0'
+    WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname= 'operational')\gexec
+    GRANT ALL PRIVILEGES ON DATABASE operational TO telemetry;
+
+    -- Create telemetry database and grant telemetry user access
+    SELECT 'CREATE DATABASE telemetry WITH TEMPLATE template0'
+    WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname= 'telemetry')\gexec
+    GRANT ALL PRIVILEGES ON DATABASE telemetry TO telemetry;

charts/postgres/templates/deployment.yaml

@@ -0,0 +1,57 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "chart.fullname" . }}
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "chart.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "chart.labels" . | nindent 8 }}
+        {{- with .Values.podLabels }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}       
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - containerPort: {{ .Values.service.port }}
+          env:
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-config
+                  key: POSTGRES_USER
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-config
+                  key: POSTGRES_PASSWORD
+            - name: POSTGRES_DB
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-config
+                  key: POSTGRES_DB
+          {{- with .Values.volumeMounts }}
+          volumeMounts:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}   
+      {{- with .Values.volumes }}
+      volumes:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/postgres/templates/jobs.yaml

@@ -0,0 +1,37 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: postgres-init
+  namespace: {{ .Release.Namespace }}
+spec:
+  template:
+    spec:
+      containers:
+        - name: init-db
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          command:
+            - sh
+            - -c
+            - |
+              until pg_isready -h postgres -U $POSTGRES_USER; do sleep 1; done
+              psql -h postgres -U $POSTGRES_USER -f /scripts/init.sql
+          env:
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-config
+                  key: POSTGRES_USER
+            - name: PGPASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-config
+                  key: POSTGRES_PASSWORD
+          volumeMounts:
+            - name: init-sql
+              mountPath: /scripts/init.sql
+              subPath: init.sql
+      restartPolicy: OnFailure
+      volumes:
+        - name: init-sql
+          configMap:
+            name: postgres-init

charts/postgres/templates/pvc.yaml

@@ -0,0 +1,13 @@
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: postgres-pv-claim
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteMany
+  resources:
+    requests:
+      storage: 5Gi

charts/postgres/templates/secrets.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: postgres-config
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+  namespace: {{ .Release.Namespace }}
+type: Opaque
+data:
+  POSTGRES_DB: {{ .Values.postgres.db | b64enc }}
+  POSTGRES_USER: {{ .Values.postgres.user | b64enc }}
+  POSTGRES_PASSWORD: {{ .Values.postgres.password | b64enc }}

charts/postgres/templates/service.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Service
+metadata:
+{{- if .Values.service.annotations }}
+  annotations:
+{{ toYaml .Values.service.annotations | indent 4 }}
+{{- end }}
+  name: {{ include "chart.fullname" . }}
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+spec:
+  {{- if .Values.service.type }}
+  type: {{ .Values.service.type }}
+  {{- end }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: {{ .Values.service.port }}
+      protocol: TCP
+  selector:
+    {{- include "chart.selectorLabels" . | nindent 4 }}

charts/postgres/templates/storage.yaml

@@ -0,0 +1,14 @@
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: postgres-pv-volume
+  labels:
+    {{- include "chart.labels" . | nindent 4 }}
+spec:
+  storageClassName: manual
+  capacity:
+    storage: 5Gi
+  accessModes:
+    - ReadWriteMany
+  hostPath:
+    path: "/mnt/data"

charts/postgres/values.yaml

@@ -0,0 +1,54 @@
+replicaCount: 1
+
+# A valid image tag must be provided for the desired postgres version
+image:
+  repository: postgres
+  pullPolicy: IfNotPresent
+  tag: "16"
+
+podAnnotations: {}
+podLabels: {}
+
+service:
+  port: 5432
+  type: ClusterIP
+
+resources:
+  limits:
+    cpu: 500m
+    memory: 256Mi
+  requests:
+    cpu: 500m
+    memory: 256Mi
+
+volumes:
+- name: postgredb
+  persistentVolumeClaim:
+    claimName: postgres-pv-claim
+
+volumeMounts:
+- mountPath: /var/lib/postgresql/data
+  name: postgredb
+
+autoscaling:
+  enabled: false
+  minReplicas: 1
+  maxReplicas: 3
+  targetCPUUtilizationPercentage: 80
+
+# TODO: this must be passed in as envs within CI/CD
+postgres:
+  db: operational
+  user: postgres
+  password: telemetry
+
+# OpenPlatform
+# postgres:
+#   persistence:
+#     enabled: true
+#     storageClass: ebs
+#     accessMode: ReadWriteOnce
+#     size: 10Mi
+#   volumeMounts:
+#   - name: postgres-pvc
+#     mountPath: /var/lib/postgresql/telemetry-server-data

charts/telemetry-server/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/telemetry-server/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "chart.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "chart.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "chart.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "chart.labels" -}}
+helm.sh/chart: {{ include "chart.chart" . }}
+{{ include "chart.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "chart.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "chart.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "chart.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "chart.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

chart/values.yaml → charts/telemetry-server/values.yaml

@@ -139,7 +139,7 @@ config:
       driver: sqlite3
       params: /tmp/telemetry/server/staging.db
   logging:
-    level: debug
+    level: info
     location: stderr
     style: text
   # This is for testing purposes only