use templates, add NOTES.txt, move to stable (#190)

stable/spark/templates/NOTES.txt

@@ -0,0 +1,16 @@
+1. Get the Spark URL to visit by running these commands in the same shell:
+  
+  NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+  You can watch the status of by running 'kubectl get svc --namespace {{ .Release.Namespace }} -w {{ template "webui-fullname" . }}'
+  
+  export SPARK_SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "webui-fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  echo http://$SPARK_SERVICE_IP:{{ .Values.WebUi.ServicePort }}
+
+2. Get the Zeppelin URL to visit by running these commands in the same shell:
+  
+  NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+  You can watch the status of by running 'kubectl get svc --namespace {{ .Release.Namespace }} -w {{ template "zeppelin-fullname" . }}'
+  
+  export ZEPPELIN_SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "zeppelin-fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  echo http://$ZEPPELIN_SERVICE_IP:{{ .Values.Zeppelin.ServicePort }}
+

stable/spark/templates/_helpers.tpl

@@ -0,0 +1,31 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 24 -}}
+{{- end -}}
+
+{{/*
+Create fully qualified names.
+We truncate at 24 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+*/}}
+{{- define "master-fullname" -}}
+{{- $name := default .Chart.Name .Values.Master.Name -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 24 -}}
+{{- end -}}
+
+{{- define "webui-fullname" -}}
+{{- $name := default .Chart.Name .Values.WebUi.Name -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 24 -}}
+{{- end -}}
+
+{{- define "worker-fullname" -}}
+{{- $name := default .Chart.Name .Values.Worker.Name -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 24 -}}
+{{- end -}}
+
+{{- define "zeppelin-fullname" -}}
+{{- $name := default .Chart.Name .Values.Zeppelin.Name -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 24 -}}
+{{- end -}}

stable/spark/templates/spark-master-deployment.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: "{{ printf "%s-%s" .Release.Name .Values.Master.Name | trunc 24 }}"
+  name: {{ template "master-fullname" . }}
   labels:
     heritage: {{.Release.Service | quote }}
     release: {{.Release.Name | quote }}
@@ -19,7 +19,7 @@ spec:
 apiVersion: v1
 kind: Service
 metadata:
-  name: "{{ printf "%s-%s" .Release.Name .Values.WebUi.Name | trunc 24 }}"
+  name: {{ template "webui-fullname" . }}
   labels:
     heritage: {{.Release.Service | quote }}
     release: {{.Release.Name | quote }}
@@ -38,12 +38,12 @@ spec:
 apiVersion: extensions/v1beta1
 kind: Deployment
 metadata:
-  name: "{{ printf "%s-%s" .Release.Name .Values.Master.Name | trunc 24 }}"
+  name: {{ template "master-fullname" . }}
   labels:
     heritage: {{.Release.Service | quote }}
     release: {{.Release.Name | quote }}
     chart: "{{.Chart.Name}}-{{.Chart.Version}}"
-    component: "{{.Release.Name}}-{{.Values.Master.Name}}"
+    component: "{{.Release.Name}}-{{.Values.Master.Component}}"
   annotations:
     "helm.sh/created": {{.Release.Time.Seconds | quote }}
 spec:
@@ -62,10 +62,10 @@ spec:
         component: "{{.Release.Name}}-{{.Values.Master.Component}}"
     spec:
       containers:
-        - name: "{{ printf "%s-%s" .Release.Name .Values.Master.Name | trunc 24 }}"
+        - name: {{ template "master-fullname" . }}
           image: "{{.Values.Master.Image}}:{{.Values.Master.ImageTag}}"
           command: ["/bin/sh","-c"]
-          args: ["echo $(hostname -i) {{ printf "%s-%s" .Release.Name .Values.Master.Name | trunc 24 }} >> /etc/hosts; /opt/spark/bin/spark-class org.apache.spark.deploy.master.Master --ip {{ printf "%s-%s" .Release.Name .Values.Master.Name | trunc 24 }} --port {{.Values.Master.ServicePort}} --webui-port {{.Values.WebUi.ContainerPort}}"]
+          args: ["echo $(hostname -i) {{ template "master-fullname" . }} >> /etc/hosts; /opt/spark/bin/spark-class org.apache.spark.deploy.master.Master --ip {{ template "master-fullname" . }} --port {{.Values.Master.ServicePort}} --webui-port {{.Values.WebUi.ContainerPort}}"]
           ports:
             - containerPort: {{.Values.Master.ContainerPort}}
             - containerPort: {{.Values.WebUi.ContainerPort}}

stable/spark/templates/spark-worker-deployment.yaml

@@ -1,7 +1,7 @@
 apiVersion: extensions/v1beta1
 kind: Deployment
 metadata:
-  name: "{{ printf "%s-%s" .Release.Name .Values.Worker.Name | trunc 24 }}"
+  name: {{ template "worker-fullname" . }}
   labels:
     heritage: {{.Release.Service | quote }}
     release: {{.Release.Name | quote }}
@@ -25,9 +25,9 @@ spec:
         component: "{{.Release.Name}}-{{.Values.Worker.Component}}"
     spec:
       containers:
-        - name: "{{ printf "%s-%s" .Release.Name .Values.Worker.Name | trunc 24 }}"
+        - name: {{ template "worker-fullname" . }}
           image: "{{.Values.Worker.Image}}:{{.Values.Worker.ImageTag}}"
-          command: ["/opt/spark/bin/spark-class", "org.apache.spark.deploy.worker.Worker", "spark://{{ printf "%s-%s" .Release.Name .Values.Master.Name | trunc 24 }}:{{.Values.Master.ServicePort}}", "--webui-port", "{{.Values.Worker.ContainerPort}}"]
+          command: ["/opt/spark/bin/spark-class", "org.apache.spark.deploy.worker.Worker", "spark://{{ template "master-fullname" . }}:{{.Values.Master.ServicePort}}", "--webui-port", "{{.Values.Worker.ContainerPort}}"]
           ports:
             - containerPort: {{.Values.Worker.ContainerPort}}
           resources:

stable/spark/templates/spark-zeppelin-deployment.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: "{{ printf "%s-%s" .Release.Name .Values.Zeppelin.Name | trunc 24 }}"
+  name: {{ template "zeppelin-fullname" . }}
   labels:
     heritage: {{.Release.Service | quote }}
     release: {{.Release.Name | quote }}
@@ -20,7 +20,7 @@ spec:
 apiVersion: extensions/v1beta1
 kind: Deployment
 metadata:
-  name: "{{ printf "%s-%s" .Release.Name .Values.Zeppelin.Name | trunc 24 }}"
+  name: {{ template "zeppelin-fullname" . }}
   labels:
     heritage: {{.Release.Service | quote }}
     release: {{.Release.Name | quote }}
@@ -44,10 +44,10 @@ spec:
         component: "{{.Release.Name}}-{{.Values.Zeppelin.Component}}"
     spec:
       containers:
-        - name: "{{ printf "%s-%s" .Release.Name .Values.Zeppelin.Name | trunc 24 }}"
+        - name: {{ template "zeppelin-fullname" . }}
           image: "{{.Values.Zeppelin.Image}}:{{.Values.Zeppelin.ImageTag}}"
           command: ["/bin/sh","-c"]
-          args: ["sed -i.bak s/spark-master:7077/{{ printf "%s-%s" .Release.Name .Values.Master.Name | trunc 24 }}:{{.Values.Master.ServicePort}}/g /opt/zeppelin/conf/zeppelin-env.sh; /opt/zeppelin/bin/docker-zeppelin.sh"]
+          args: ["sed -i.bak s/spark-master:7077/{{ template "master-fullname" . }}:{{.Values.Master.ServicePort}}/g /opt/zeppelin/conf/zeppelin-env.sh; /opt/zeppelin/bin/docker-zeppelin.sh"]
           ports:
             - containerPort: {{.Values.Zeppelin.ContainerPort}}
           resources:

stable/spark/values.yaml

@@ -4,7 +4,7 @@
 # name: value
 
 Master:
-  Name: spark-master
+  Name: master
   Image: "gcr.io/google_containers/spark"
   ImageTag: "1.5.1_v3"
   Replicas: 1
@@ -17,12 +17,12 @@ Master:
   #DaemonMemory: 1g
 
 WebUi:
-  Name: spark-webui
+  Name: webui
   ServicePort: 8080
   ContainerPort: 8080
 
 Worker:
-  Name: spark-worker
+  Name: worker
   Image: "gcr.io/google_containers/spark"
   ImageTag: "1.5.1_v3"
   Replicas: 3
@@ -36,7 +36,7 @@ Worker:
   #ExecutorMemory: 1g
 
 Zeppelin:
-  Name: zeppelin-controller
+  Name: zeppelin
   Image: "gcr.io/google_containers/zeppelin"
   ImageTag: "v0.5.5_v2"
   Replicas: 1