feat(helm)!: changes to simplify HELM

charts/quickstart-openshift/Chart.yaml

@@ -25,29 +25,11 @@ version: 0.1.0
 appVersion: "1.16.0"
 
 dependencies:
-  - name: component
-    condition: backend.enabled
-    version: 0.3.0
-    repository: https://bcgov.github.io/helm-service
-    alias: backend
-
-  - name: component
-    condition: frontend.enabled
-    version: 0.3.0
-    repository: https://bcgov.github.io/helm-service
-    alias: frontend
-
   - name: postgresql
     condition: bitnami-pg.enabled
     version: 14.0.5
     repository: https://charts.bitnami.com/bitnami
     alias: bitnami-pg
-
-  - name: component
-    condition: backup.enabled
-    version: 0.3.0
-    repository: https://bcgov.github.io/helm-service
-    alias: backup
 maintainers:
   - name: Om Mishra
     email: omprakash.2.mishra@gov.bc.ca

charts/quickstart-openshift/templates/backend/templates/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "backend.name" -}}
+{{- printf "backend" }}
+{{- 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 "backend.fullname" -}}
+{{- $componentName := include "backend.name" .  }}
+{{- if .Values.backend.fullnameOverride }}
+{{- .Values.backend.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $componentName | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "backend.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "backend.labels" -}}
+helm.sh/chart: {{ include "backend.chart" . }}
+{{ include "backend.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/image-version: {{ .Values.global.tag | quote }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+app.kubernetes.io/short-name: {{ include "backend.name" . }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "backend.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "backend.fullname" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+

charts/quickstart-openshift/templates/backend/templates/deployment.yaml

@@ -0,0 +1,119 @@
+{{- if .Values.backend.enabled }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "backend.fullname" . }}
+  labels:
+    {{- include "backend.labels" . | nindent 4 }}
+spec:
+  strategy:
+    type: {{ .Values.backend.deploymentStrategy }}
+  {{- if not .Values.backend.autoscaling.enabled }}
+  replicas: {{ .Values.backend.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "backend.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        prometheus.io/scrape: 'true'
+        prometheus.io/port: '3000'
+        prometheus.io/path: '/api/metrics'
+      labels:
+        {{- include "backend.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- if .Values.backend.podSecurityContext }}
+      securityContext:
+        {{- toYaml .Values.backend.podSecurityContext | nindent 12 }}
+      {{- end }}
+      initContainers:
+        - name: {{ include "backend.fullname" . }}-init
+          image: "{{.Values.global.registry}}/{{.Values.global.repository}}/migrations:{{ .Values.global.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ default "IfNotPresent" .Values.backend.image.pullPolicy }}
+          envFrom:
+            - secretRef:
+                name: {{.Release.Name}}
+          env:
+            - name: FLYWAY_BASELINE_ON_MIGRATE
+              value: "true"
+            - name: FLYWAY_DEFAULT_SCHEMA
+              value: "USERS"
+            - name: FLYWAY_CONNECT_RETRIES
+              value: "10"
+          resources:
+            limits:
+              cpu: 500m
+              memory: 250Mi
+            requests:
+              cpu: 200m
+              memory: 150Mi
+      containers:
+        - name: {{ include "backend.fullname" . }}
+          {{- if .Values.backend.securityContext }}
+          securityContext:
+            {{- toYaml .Values.backend.securityContext | nindent 12 }}
+          {{- end }}
+          image: {{.Values.global.registry}}/{{.Values.global.repository}}/backend:{{ .Values.global.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ default "IfNotPresent" .Values.backend.image.pullPolicy }}
+          envFrom:
+            - secretRef:
+                name: {{.Release.Name}}
+          env:
+            - name: LOG_LEVEL
+              value: info
+          ports:
+            - name: http
+              containerPort: {{ .Values.backend.service.targetPort }}
+              protocol: TCP
+          readinessProbe:
+            httpGet:
+              path: /api/health
+              port: http
+              scheme: HTTP
+            initialDelaySeconds: 5
+            periodSeconds: 2
+            timeoutSeconds: 2
+            successThreshold: 1
+            failureThreshold: 30
+          livenessProbe:
+            successThreshold: 1
+            failureThreshold: 3
+            httpGet:
+              path: /api/health
+              port: 3000
+              scheme: HTTP
+            initialDelaySeconds: 15
+            periodSeconds: 30
+            timeoutSeconds: 5
+          resources: # this is optional
+            limits:
+              cpu: 250m
+              memory: 250Mi
+            requests:
+              cpu: 100m
+              memory: 150Mi
+      {{- with .Values.backend.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.backend.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchExpressions:
+                  - key: app.kubernetes.io/name
+                    operator: In
+                    values:
+                      - {{ include "backend.fullname" . }}
+                  - key: app.kubernetes.io/instance
+                    operator: In
+                    values:
+                      - {{ .Release.Name }}
+              topologyKey: "kubernetes.io/hostname"
+
+{{- end }}

charts/quickstart-openshift/templates/backend/templates/hpa.yaml

@@ -0,0 +1,55 @@
+{{- if .Values.global.autoscaling }}
+{{- if and .Values.backend.autoscaling .Values.backend.autoscaling.enabled }}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "backend.fullname" . }}
+  labels:
+    {{- include "backend.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "backend.fullname" . }}
+  minReplicas: {{ .Values.backend.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.backend.autoscaling.maxReplicas }}
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      policies:
+        - type: Percent
+          value: 10
+          periodSeconds: 60
+        - type: Pods
+          value: 2
+          periodSeconds: 60
+      selectPolicy: Min
+    scaleUp:
+      stabilizationWindowSeconds: 0
+      policies:
+        - type: Percent
+          value: 100
+          periodSeconds: 30
+        - type: Pods
+          value: 2
+          periodSeconds: 30
+      selectPolicy: Max
+  metrics:
+    {{- if .Values.backend.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.backend.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.backend.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.backend.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}
+{{- end }}

charts/quickstart-openshift/templates/backend/templates/pdb.yaml

@@ -0,0 +1,14 @@
+{{- if and .Values.backend.pdb  .Values.backend.pdb.enabled }}
+---
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "backend.fullname" . }}
+  labels:
+    {{- include "backend.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "backend.fullname" . }}
+  minAvailable: {{ .Values.backend.pdb.minAvailable }}
+{{- end }}

charts/quickstart-openshift/templates/backend/templates/service.yaml

@@ -0,0 +1,18 @@
+{{- if .Values.backend.enabled }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "backend.fullname" . }}
+  labels:
+    {{- include "backend.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.backend.service.type }}
+  ports:
+    - port: {{ .Values.backend.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "backend.selectorLabels" . | nindent 4 }}
+{{- end }}

charts/quickstart-openshift/templates/frontend/templates/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "frontend.name" -}}
+{{- printf "frontend" }}
+{{- 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 "frontend.fullname" -}}
+{{- $componentName := include "frontend.name" .  }}
+{{- if .Values.frontend.fullnameOverride }}
+{{- .Values.frontend.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $componentName | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "frontend.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "frontend.labels" -}}
+helm.sh/chart: {{ include "frontend.chart" . }}
+{{ include "frontend.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/image-version: {{ .Values.global.tag | quote }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+app.kubernetes.io/short-name: {{ include "frontend.name" . }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "frontend.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "frontend.fullname" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+