updated

Jenkinsfile

+pipeline {
+	agent any
+    stages {
+        stage('Build on k8 ') {
+            steps {           
+                        sh 'pwd'
+                        sh 'cp -R helm/* .'
+		        sh 'ls -ltr'
+                        sh 'pwd'
+                        sh '/usr/local/bin/helm upgrade --install petclinic-app petclinic  --set image.repository=registry.hub.docker.com/prawinkorvi/petclinic --set image.tag=2'
+              			
+            }           
+        }
+    }
+}

helm/petclinic/Chart.yaml

+apiVersion: v1
+appVersion: "1.0"
+description: A Helm chart for Kubernetes
+name: petclinic
+version: 0.1.0

helm/petclinic/README.md

+# petclinic
\ No newline at end of file

helm/petclinic/templates/NOTES.txt

+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ . }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "petclinic.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "petclinic.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "petclinic.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "petclinic.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl port-forward $POD_NAME 8080:80
+{{- end }}

helm/petclinic/templates/_helpers.tpl

+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "petclinic.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 "petclinic.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 "petclinic.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "petclinic.labels" -}}
+app.kubernetes.io/name: {{ include "petclinic.name" . }}
+helm.sh/chart: {{ include "petclinic.chart" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "petclinic.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "petclinic.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

helm/petclinic/templates/deployment.yaml

+#Deployment
+###controllers/pb-deploy.tml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: petclinic-deployment
+spec:
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+  minReadySeconds: 5
+  revisionHistoryLimit: 10
+  selector:
+    matchLabels:
+      app: petclinic-app
+  template:
+    metadata:
+      labels:
+        app: petclinic-app
+    spec:
+      containers:
+      - name: petclinic-container
+        image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+        imagePullPolicy: Always
+        resources:
+          limits:
+            cpu: '1'
+            memory: '500Mi'
+          requests:
+            cpu: '1'
+            memory: '500Mi'
+        ports:
+        - containerPort: 8080
+      imagePullSecrets:
+      - name: regcred
+
+
+

helm/petclinic/templates/ingress.yaml

+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "petclinic.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+{{ include "petclinic.labels" . | indent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+  {{- range .Values.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . | quote }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+        {{- range .paths }}
+          - path: {{ . }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+        {{- end }}
+  {{- end }}
+{{- end }}

helm/petclinic/templates/petclinic-hpa.yml

+ apiVersion: autoscaling/v1
+kind: HorizontalPodAutoscaler
+metadata:
+ name: petclicnic-hpa
+spec:
+ maxReplicas: 5
+ minReplicas: 1
+ scaleTargetRef:
+   apiVersion: apps/v1
+   kind: Deployment
+   name: petclinic-deployment
+ targetCPUUtilizationPercentage: 50

helm/petclinic/templates/petclinic-mem.yaml

+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: petclinic-mem-hpa
+spec:
+  maxReplicas: 5
+  minReplicas: 1
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: petclinic-deployment
+  metrics:
+  - type: Resource
+    resource:
+      name: memory
+      targetAverageUtilization: 50

helm/petclinic/templates/service.yaml

+# Service - LoadBalancer
+# # pb-service -lb.yml
+apiVersion: v1
+kind: Service
+metadata:
+  name: petclinic-service
+  labels:
+    app: petclinic-app
+spec:
+  selector:
+    app: petclinic-app
+  type: LoadBalancer
+  ports:
+  - nodePort: 32750
+    port: 8080
+    targetPort: 8080

helm/petclinic/templates/serviceaccount.yaml

+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "petclinic.serviceAccountName" . }}
+  labels:
+{{ include "petclinic.labels" . | indent 4 }}
+{{- end -}}

helm/petclinic/templates/tests/test-connection.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "petclinic.fullname" . }}-test-connection"
+  labels:
+{{ include "petclinic.labels" . | indent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args:  ['{{ include "petclinic.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never

helm/petclinic/values.yaml

+# Default values for petclinic.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: prawinkorvi/petclinicimage
+  tag: latest
+  pullPolicy: IfNotPresent
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name:
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+service:
+  type: ClusterIP
+  port: 80
+
+ingress:
+  enabled: false
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths: []
+
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}