add hadoop-yarn chart

Signed-off-by: zwzhang0107 <zuoweizhang@outlook.com>

charts/hadoop-yarn

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+../hadoop-yarn/3.3.2-v1.0

hadoop-yarn/3.3.2-v1.0/Chart.yaml

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+apiVersion: v2
+name: hadoop-yarn
+description: A Helm chart for hadoop yarn.
+type: application
+version: 3.3.2
+appVersion: "3.3.2"

hadoop-yarn/3.3.2-v1.0/templates/NOTES.txt

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+0. Check running state of yarn pods
+   kubectl get pod -n {{ .Values.installation.namespace }}
+
+1. You can list the yarn nodes by running this command:
+   kubectl exec -n {{ .Values.installation.namespace }} -it ${yarn-rm-pod-name} -- /opt/hadoop/bin/yarn node -list
+
+2. Create a port-forward to the yarn resource manager UI:
+   kubectl port-forward -n {{ .Values.installation.namespace }} service/{{ .Values.yarn.resourceManager.serviceName }} {{ .Values.yarn.resourceManager.webPort}}:{{.Values.yarn.resourceManager.webPort}}
+
+   Then open the ui in your browser:
+
+   open http://localhost:{{.Values.yarn.resourceManager.webPort}}
+
+3. You can run included hadoop tests like this:
+   kubectl exec -n {{ .Values.installation.namespace }} -it ${yarn-rm-pod-name} yarn-rm -- /opt/hadoop/bin/hadoop jar /opt/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-{{ .Values.hadoopVersion }}-tests.jar TestDFSIO -write -nrFiles 5 -fileSize 128MB -resFile /tmp/TestDFSIOwrite.txt
+   kubectl exec -n {{ .Values.installation.namespace }} -it ${yarn-rm-pod-name} yarn-rm -- /opt/spark/bin/spark-submit --master yarn --deploy-mode cluster --class org.apache.spark.examples.SparkPi /opt/spark/examples/jars/spark-examples_2.12-3.3.3.jar 1000
+
+4. You can list the mapreduce jobs like this:
+   kubectl exec -n {{ .Values.installation.namespace }} -it ${yarn-rm-pod-name} -- /opt/hadoop/bin/mapred job -list

hadoop-yarn/3.3.2-v1.0/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "hadoop-yarn.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 "hadoop-yarn.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 "hadoop-yarn.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "hadoop-yarn.labels" -}}
+helm.sh/chart: {{ include "hadoop-yarn.chart" . }}
+{{ include "hadoop-yarn.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "hadoop-yarn.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "hadoop-yarn.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}