mongo helm charts added for performance benchmarking

mongo-helm/Chart.yaml

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+apiVersion: v2
+name: mongo
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

mongo-helm/README.md

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+# mongo-helm
+helm charts for mongo 

mongo-helm/templates/_helpers.tpl

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

mongo-helm/templates/mongodb-client.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: {{ .Values.mongoclient.name }}
+    role: client
+  name: {{ .Values.mongoclient.name }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: {{ .Values.mongoclient.name }}
+      role: client
+  template:
+    metadata:
+      labels:
+        app: {{ .Values.mongoclient.name }}
+        role: client
+    spec:
+      containers:
+      - image: "{{ .Values.mongoclient.image.repository }}:{{ .Values.mongoclient.image.tag | default .Chart.AppVersion }}"
+        name: {{ .Values.mongoclient.name }}
+        env:
+        - name: mongo-client_INITDB_ROOT_USERNAME
+          value: 'dummy'
+        - name: mongo-client_INITDB_ROOT_PASSWORD
+          value: 'dummy'

mongo-helm/templates/standalone/deployment.yaml

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+{{- if .Values.standalone.enabled }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "mongo.fullname" . }}
+  labels:
+    role: mongo
+    {{- include "mongo.labels" . | nindent 4 }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      role: mongo
+      {{- include "mongo.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        role: mongo
+        {{- include "mongo.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "mongo.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          env:
+          - name: MONGO_INITDB_ROOT_USERNAME
+            valueFrom:
+              secretKeyRef:
+                name: {{ .Values.secrets.name }}
+                key: username
+          - name: MONGO_INITDB_ROOT_PASSWORD
+            valueFrom:
+              secretKeyRef:
+                name: {{ .Values.secrets.name }}
+                key: password
+          ports:
+            - name: http
+              containerPort: {{ .Values.service.port }}
+              protocol: TCP
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+          - name: "mongo-data-dir"
+            mountPath: "/data/db"
+      nodeSelector:
+        kubernetes.io/arch: amd64
+        openebs.io/engine: mayastor
+      volumes:
+      - name: "mongo-data-dir"
+        persistentVolumeClaim:
+          claimName: {{ .Values.storage.pvcname }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+{{- end }}

mongo-helm/templates/standalone/pvc.yaml

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+{{- if .Values.standalone.enabled }}
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ .Values.storage.pvcname }} 
+spec:
+  accessModes:
+    - {{ .Values.storage.accessmode }}
+  resources:
+    requests:
+      storage: {{ .Values.storage.size }}
+  {{ if .Values.statefulset.multireplica.enabled }}
+  storageClassName: {{ .Values.statefulset.multireplica.scname }}
+  {{ else }}
+  storageClassName: {{ .Values.statefulset.singlereplica.scname }}
+  {{ end }}
+{{- end }}

mongo-helm/templates/standalone/secret.yaml

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+{{- if .Values.standalone.enabled }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ .Values.secrets.name }}
+type: "Opaque"
+data:
+  username: {{ .Values.secrets.username | b64enc | quote }}
+  password: {{ .Values.secrets.password | b64enc | quote }}
+{{- end }}

mongo-helm/templates/standalone/service.yaml

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

mongo-helm/templates/statefulsets/configmap.yaml

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+{{- if .Values.ha.enabled }}
+apiVersion: v1
+data:
+  script.sh: |+
+    #!/bin/bash
+    set -ex
+    #Initiating the server
+
+    hostname=`hostname -f`
+    stsname=`hostname | cut -d "-" -f1`
+    db_hostname="$hostname:27017"
+    serviceproxy="mongodb-service.default.svc.cluster.local:27017"
+    echo "Hostname of Server is $hostname"
+    stsidentity=`hostname -f | cut -d "." -f1 | cut -d "-" -f2`
+
+    if [ $stsidentity -eq 0 ];then
+    mongosh <<EOF
+    rs.initiate()
+    EOF
+    mongosh <<EOF
+    var cfg = rs.conf();cfg.members[0].host="$stsname-0.$serviceproxy";
+    rs.reconfig(cfg);
+    EOF
+    mongosh <<EOF
+    db.getSiblingDB("admin").createUser({
+    user : "{{ .Values.statefulset.secrets.username }}",
+    pwd  : "{{ .Values.statefulset.secrets.password }}",
+    roles: [ { role: "root", db: "admin" } ]});
+    EOF
+    elif [ $stsidentity -ne 0 ];then
+    mongosh mongodb://$stsname-0.$serviceproxy <<EOF
+    rs.add("$db_hostname")
+    rs.status()
+    EOF
+    fi
+
+kind: ConfigMap
+metadata:
+  name: mongo-replica
+{{- end }}

mongo-helm/templates/statefulsets/mongodb-service-headless.yaml

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+{{- if .Values.ha.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    name: {{ .Values.statefulset.service.name }}
+  name: {{ .Values.statefulset.service.name }}
+spec:
+  clusterIP: None
+  clusterIPs:
+  - None
+  internalTrafficPolicy: Cluster
+  ipFamilies:
+  - IPv4
+  ipFamilyPolicy: SingleStack
+  ports:
+  - port: {{ .Values.service.port }}
+    protocol: TCP
+    targetPort: {{ .Values.statefulset.service.port }}
+  selector:
+    role: mongo
+  sessionAffinity: None
+  type: ClusterIP
+status:
+  loadBalancer: {}
+{{- end }}

mongo-helm/templates/statefulsets/secret.yaml

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+{{- if .Values.ha.enabled }}
+apiVersion: v1
+data:
+  password: {{ .Values.statefulset.secrets.password | b64enc | quote }}
+  username: {{ .Values.statefulset.secrets.username | b64enc | quote }}
+kind: Secret
+metadata:
+  name: {{ .Values.statefulset.secrets.name }}
+type: Opaque
+{{- end }}