Tutorial build pack

packs/tutorial-build-pack/Dockerfile

@@ -0,0 +1,14 @@
+FROM openjdk:8-jdk-slim
+ENV PORT 8080
+ENV CLASSPATH /opt/lib
+EXPOSE 8080
+
+# copy pom.xml and wildcards to avoid this command failing if there's no target/lib directory
+COPY pom.xml target/lib* /opt/lib/
+
+# NOTE we assume there's only 1 jar in the target dir
+# but at least this means we don't have to guess the name
+# we could do with a better way to know the name - or to always create an app.jar or something
+COPY target/*.jar /opt/app.jar
+WORKDIR /opt
+CMD ["java", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-jar", "app.jar"]

packs/tutorial-build-pack/charts/.helmignore

@@ -0,0 +1,21 @@
+# 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
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj

packs/tutorial-build-pack/charts/Chart.yaml

@@ -0,0 +1,5 @@
+name: maven
+description: A Helm chart for Kubernetes
+apiVersion: v1
+version: 0.1.0-SNAPSHOT
+icon: https://raw.githubusercontent.com/jenkins-x/jenkins-x-platform/master/images/java.png

packs/tutorial-build-pack/charts/Makefile

@@ -0,0 +1,48 @@
+CHART_REPO := http://jenkins-x-chartmuseum:8080
+CURRENT=$(pwd)
+NAME := REPLACE_ME_APP_NAME
+OS := $(shell uname)
+RELEASE_VERSION := $(shell cat ../../VERSION)
+
+build: clean
+	rm -rf requirements.lock
+	helm dependency build
+	helm lint
+
+install: clean build
+	helm install . --name ${NAME}
+
+upgrade: clean build
+	helm upgrade ${NAME} .
+
+delete:
+	helm delete --purge ${NAME}
+
+clean:
+	rm -rf charts
+	rm -rf ${NAME}*.tgz
+
+release: clean
+	helm dependency build
+	helm lint
+	helm init --client-only
+	helm package .
+	curl --fail -u $(CHARTMUSEUM_CREDS_USR):$(CHARTMUSEUM_CREDS_PSW) --data-binary "@$(NAME)-$(shell sed -n 's/^version: //p' Chart.yaml).tgz" $(CHART_REPO)/api/charts
+	rm -rf ${NAME}*.tgz%
+
+tag:
+ifeq ($(OS),Darwin)
+	sed -i "" -e "s/version:.*/version: $(RELEASE_VERSION)/" Chart.yaml
+	sed -i "" -e "s/tag:.*/tag: $(RELEASE_VERSION)/" values.yaml
+else ifeq ($(OS),Linux)
+	sed -i -e "s/version:.*/version: $(RELEASE_VERSION)/" Chart.yaml
+	sed -i -e "s|repository:.*|repository: $(DOCKER_REGISTRY)\/REPLACE_ME_DOCKER_REGISTRY_ORG\/REPLACE_ME_APP_NAME|" values.yaml
+	sed -i -e "s/tag:.*/tag: $(RELEASE_VERSION)/" values.yaml
+else
+	echo "platfrom $(OS) not supported to release from"
+	exit -1
+endif
+	git add --all
+	git commit -m "release $(RELEASE_VERSION)" --allow-empty # if first release then no verion update is performed
+	git tag -fa v$(RELEASE_VERSION) -m "Release version $(RELEASE_VERSION)"
+	git push origin v$(RELEASE_VERSION)

packs/tutorial-build-pack/charts/README.md

@@ -0,0 +1 @@
+# Java application

packs/tutorial-build-pack/charts/templates/NOTES.txt

@@ -0,0 +1,4 @@
+
+Get the application URL by running these commands:
+
+kubectl get ingress {{ template "fullname" . }}

packs/tutorial-build-pack/charts/templates/_helpers.tpl

@@ -0,0 +1,16 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "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).
+*/}}
+{{- define "fullname" -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

packs/tutorial-build-pack/charts/templates/canary.yaml

@@ -0,0 +1,85 @@
+{{- if .Values.canary.enabled }}
+apiVersion: flagger.app/v1beta1
+kind: Canary
+metadata:
+  name: {{ template "fullname" . }}
+  labels:
+    draft: {{ default "draft-app" .Values.draft }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+spec:
+  provider: istio
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ template "fullname" . }}
+  progressDeadlineSeconds: {{ .Values.canary.progressDeadlineSeconds }}
+  {{- if .Values.hpa.enabled }}
+  autoscalerRef:
+    apiVersion: autoscaling/v2beta1
+    kind: HorizontalPodAutoscaler
+    name: {{ template "fullname" . }}
+  {{- end }}
+  service:
+    port: {{ .Values.service.externalPort }}
+    targetPort: {{ .Values.service.internalPort }}
+    gateways:
+    - {{ template "fullname" . }}
+    hosts:
+    - {{ .Values.canary.host }}
+  analysis:
+    interval: {{ .Values.canary.canaryAnalysis.interval }}
+    threshold: {{ .Values.canary.canaryAnalysis.threshold }}
+    maxWeight: {{ .Values.canary.canaryAnalysis.maxWeight }}
+    stepWeight: {{ .Values.canary.canaryAnalysis.stepWeight }}
+    metrics:
+    - name: request-success-rate
+      threshold: {{ .Values.canary.canaryAnalysis.metrics.requestSuccessRate.threshold }}
+      interval: {{ .Values.canary.canaryAnalysis.metrics.requestSuccessRate.interval }}
+    - name: latency
+      templateRef:
+        name: latency
+      thresholdRange:
+        max: {{ .Values.canary.canaryAnalysis.metrics.requestDuration.threshold }}
+      interval: {{ .Values.canary.canaryAnalysis.metrics.requestDuration.interval }}
+
+---
+
+apiVersion: flagger.app/v1beta1
+kind: MetricTemplate
+metadata:
+  name: latency
+spec:
+  provider:
+    type: prometheus
+    address: http://prometheus.istio-system:9090
+  query: |
+    histogram_quantile(
+        0.99,
+        sum(
+            rate(
+                istio_request_duration_milliseconds_bucket{
+                    reporter="destination",
+                    destination_workload_namespace="{{ "{{" }} namespace {{ "}}" }}",
+                    destination_workload=~"{{ "{{" }} target {{ "}}" }}"
+                }[{{ "{{" }} interval {{ "}}" }}]
+            )
+        ) by (le)
+    )
+
+---
+
+apiVersion: networking.istio.io/v1alpha3
+kind: Gateway
+metadata:
+  name: {{ template "fullname" . }}
+spec:
+  selector:
+    istio: ingressgateway
+  servers:
+  - port:
+      number: {{ .Values.service.externalPort }}
+      name: http
+      protocol: HTTP
+    hosts:
+    - {{ .Values.canary.host }}
+{{- end }}

packs/tutorial-build-pack/charts/templates/deployment.yaml

@@ -0,0 +1,59 @@
+{{- if .Values.knativeDeploy }}
+{{- else }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "fullname" . }}
+  labels:
+    draft: {{ default "draft-app" .Values.draft }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+spec:
+  selector:
+    matchLabels:
+      app: {{ template "fullname" . }}
+{{- if .Values.hpa.enabled }}
+{{- else }}
+  replicas: {{ .Values.replicaCount }}
+{{- end }}
+  template:
+    metadata:
+      labels:
+        draft: {{ default "draft-app" .Values.draft }}
+        app: {{ template "fullname" . }}
+{{- if .Values.podAnnotations }}
+      annotations:
+{{ toYaml .Values.podAnnotations | indent 8 }}
+{{- end }}
+    spec:
+      containers:
+      - name: {{ .Chart.Name }}
+        image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+        imagePullPolicy: {{ .Values.image.pullPolicy }}
+        env:
+{{- range $pkey, $pval := .Values.env }}
+        - name: {{ $pkey }}
+          value: {{ quote $pval }}
+{{- end }}
+        envFrom:
+{{ toYaml .Values.envFrom | indent 10 }}
+        ports:
+        - containerPort: {{ .Values.service.internalPort }}
+        livenessProbe:
+          httpGet:
+            path: {{ .Values.probePath }}
+            port: {{ .Values.service.internalPort }}
+          initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
+          periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
+          successThreshold: {{ .Values.livenessProbe.successThreshold }}
+          timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
+        readinessProbe:
+          httpGet:
+            path: {{ .Values.probePath }}
+            port: {{ .Values.service.internalPort }}
+          periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
+          successThreshold: {{ .Values.readinessProbe.successThreshold }}
+          timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
+        resources:
+{{ toYaml .Values.resources | indent 12 }}
+      terminationGracePeriodSeconds: {{ .Values.terminationGracePeriodSeconds }}
+{{- end }}

packs/tutorial-build-pack/charts/templates/hpa.yaml

@@ -0,0 +1,25 @@
+{{- if .Values.hpa.enabled }}
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ template "fullname" . }}
+  labels:
+    draft: {{ default "draft-app" .Values.draft }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ template "fullname" . }}
+  minReplicas: {{ .Values.hpa.minReplicas }}
+  maxReplicas: {{ .Values.hpa.maxReplicas }}
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      targetAverageUtilization: {{ .Values.hpa.cpuTargetAverageUtilization }}
+  - type: Resource
+    resource:
+      name: memory
+      targetAverageUtilization: {{ .Values.hpa.memoryTargetAverageUtilization }}
+{{- end }}

packs/tutorial-build-pack/charts/templates/ingress.yaml

@@ -0,0 +1,32 @@
+{{- if and (.Values.jxRequirements.ingress.domain) (not .Values.knativeDeploy) }}
+apiVersion: {{ .Values.jxRequirements.ingress.apiVersion }}
+kind: Ingress
+metadata:
+  annotations:
+    kubernetes.io/ingress.class: nginx
+{{- if .Values.ingress.annotations }}
+{{ toYaml .Values.ingress.annotations | indent 4 }}
+{{- end }}
+{{- if .Values.jxRequirements.ingress.annotations }}
+{{ toYaml .Values.jxRequirements.ingress.annotations | indent 4 }}
+{{- end }}
+  name: {{ .Values.service.name }}
+spec:
+  rules:
+  - host: {{ .Values.service.name }}{{ .Values.jxRequirements.ingress.namespaceSubDomain }}{{ .Values.jxRequirements.ingress.domain }}
+    http:
+      paths:
+      - backend:
+          serviceName: {{ .Values.service.name }}
+          servicePort: 80
+{{- if .Values.jxRequirements.ingress.tls.enabled }}
+  tls:
+  - hosts:
+    - {{ .Values.service.name }}{{ .Values.jxRequirements.ingress.namespaceSubDomain }}{{ .Values.jxRequirements.ingress.domain }}
+{{- if .Values.jxRequirements.ingress.tls.production }}
+    secretName: "tls-{{ .Values.jxRequirements.ingress.domain | replace "." "-" }}-p"
+{{- else }}
+    secretName: "tls-{{ .Values.jxRequirements.ingress.domain | replace "." "-" }}-s"
+{{- end }}
+{{- end }}
+{{- end }}

packs/tutorial-build-pack/charts/templates/ksvc.yaml

@@ -0,0 +1,41 @@
+{{- if .Values.knativeDeploy }}
+apiVersion: serving.knative.dev/v1alpha1
+kind: Service
+metadata:
+{{- if .Values.service.name }}
+  name: {{ .Values.service.name }}
+{{- else }}
+  name: {{ template "fullname" . }}
+{{- end }}
+  labels:
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+spec:
+  runLatest:
+    configuration:
+      revisionTemplate:
+        spec:
+          container:
+            image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+            imagePullPolicy: {{ .Values.image.pullPolicy }}
+            env:
+{{- range $pkey, $pval := .Values.env }}
+            - name: {{ $pkey }}
+              value: {{ quote $pval }}
+{{- end }}
+            livenessProbe:
+              httpGet:
+                path: {{ .Values.probePath }}
+              initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
+              periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
+              successThreshold: {{ .Values.livenessProbe.successThreshold }}
+              timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
+            readinessProbe:
+              failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
+              httpGet:
+                path: {{ .Values.probePath }}
+              periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
+              successThreshold: {{ .Values.readinessProbe.successThreshold }}
+              timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
+            resources:
+{{ toYaml .Values.resources | indent 14 }}
+{{- end }}

packs/tutorial-build-pack/charts/templates/service.yaml

@@ -0,0 +1,26 @@
+{{- if or .Values.knativeDeploy .Values.canary.enabled }}
+{{- else }}
+apiVersion: v1
+kind: Service
+metadata:
+{{- if .Values.service.name }}
+  name: {{ .Values.service.name }}
+{{- else }}
+  name: {{ template "fullname" . }}
+{{- end }}
+  labels:
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
+{{- if .Values.service.annotations }}
+  annotations:
+{{ toYaml .Values.service.annotations | indent 4 }}
+{{- end }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+  - port: {{ .Values.service.externalPort }}
+    targetPort: {{ .Values.service.internalPort }}
+    protocol: TCP
+    name: http
+  selector:
+    app: {{ template "fullname" . }}
+{{- end }}