adding helm chart for demochat

demochatChart/.helmignore

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+# 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

demochatChart/Chart.yaml

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+apiVersion: v1
+description: demochat
+name: demochat
+version: 0.0.2

demochatChart/app.rc.yaml

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+apiVersion: extensions/v1beta1
+kind: deployment
+metadata:
+  name: mattermost-app
+spec:
+  replicas: 1
+  selector:
+    app: mattermost-app
+  template:
+    metadata:
+      labels:
+        app: mattermost-app
+    spec:
+      containers:
+      - name: app
+        image: redspreadapps/mattermost-app:1
+        imagePullPolicy: Always
+        volumeMounts:
+        - name: localtime
+          mountPath: /etc/localtime
+        - name: pgauth
+          mountPath: /etc/pgsecrets
+        # Uncomment this for production use
+        #
+        # - name: assets
+        #   mountPath: /mattermost/data
+        ports:
+        - containerPort: 80
+          protocol: TCP
+      - name: postgres
+        image: redspreadapps/mattermost-db:1
+        imagePullPolicy: Always
+        volumeMounts:
+        - name: localtime
+          mountPath: /etc/localtime
+        - name: pgauth
+          mountPath: /etc/secrets
+        # Uncomment this for production use
+        # - name: postgres
+        #   mountPath: /var/lib/postgresql/data
+        env:
+        - name: PGDATA
+          value: /var/lib/postgresql/data/pgdata
+      volumes:
+      - name: localtime
+        hostPath:
+          path: /etc/localtime
+      - name: pgauth
+        secret:
+          secretName: postgres-creds
+    # Google Cloud Platform Persistent Volume Disk
+      # - name: assets
+      #   gcePersistentDisk:
+      #     pdName: mattermost-assets
+      #     fsType: "ext4"
+      #
+      # - name: postgres
+      #   gcePersistentDisk:
+      #     pdName: mattermost-postgres
+      #     fsType: "ext4"
+      restartPolicy: Always

demochatChart/charts/mongodb/.helmignore

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+.git

demochatChart/charts/mongodb/Chart.yaml

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+name: mongodb
+version: 0.4.18
+appVersion: 3.4.10
+description: NoSQL document-oriented database that stores JSON-like documents with dynamic schemas, simplifying the integration of data in content-driven applications.
+keywords:
+- mongodb
+- database
+- nosql
+home: https://mongodb.org
+icon: https://bitnami.com/assets/stacks/mongodb/img/mongodb-stack-220x234.png
+sources:
+- https://github.com/bitnami/bitnami-docker-mongodb
+maintainers:
+- name: Bitnami
+  email: containers@bitnami.com
+engine: gotpl

demochatChart/charts/mongodb/README.md

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+# MongoDB
+
+[MongoDB](https://www.mongodb.com/) is a cross-platform document-oriented database. Classified as a NoSQL database, MongoDB eschews the traditional table-based relational database structure in favor of JSON-like documents with dynamic schemas, making the integration of data in certain types of applications easier and faster.
+
+## TL;DR;
+
+```bash
+$ helm install stable/mongodb
+```
+
+## Introduction
+
+This chart bootstraps a [MongoDB](https://github.com/bitnami/bitnami-docker-mongodb) deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.4+ with Beta APIs enabled
+- PV provisioner support in the underlying infrastructure
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```bash
+$ helm install --name my-release stable/mongodb
+```
+
+The command deploys MongoDB on the Kubernetes cluster in the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
+
+> **Tip**: List all releases using `helm list`
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```bash
+$ helm delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The following tables lists the configurable parameters of the MongoDB chart and their default values.
+
+|         Parameter          |             Description             |                         Default                          |
+|----------------------------|-------------------------------------|----------------------------------------------------------|
+| `image`                    | MongoDB image                       | `bitnami/mongodb:{VERSION}`                              |
+| `imagePullPolicy`          | Image pull policy                   | `Always` if `imageTag` is `latest`, else `IfNotPresent`. |
+| `mongodbRootPassword`      | MongoDB admin password              | `nil`                                                    |
+| `mongodbUsername`          | MongoDB custom user                 | `nil`                                                    |
+| `mongodbPassword`          | MongoDB custom user password        | `nil`                                                    |
+| `mongodbDatabase`          | Database to create                  | `nil`                                                    |
+| `serviceType`              | Kubernetes Service type             | `ClusterIP`                                              |
+| `persistence.enabled`      | Use a PVC to persist data           | `true`                                                   |
+| `persistence.storageClass` | Storage class of backing PVC        | `nil` (uses alpha storage class annotation)              |
+| `persistence.accessMode`   | Use volume as ReadOnly or ReadWrite | `ReadWriteOnce`                                          |
+| `persistence.size`         | Size of data volume                 | `8Gi`                                                    |
+
+The above parameters map to the env variables defined in [bitnami/mongodb](http://github.com/bitnami/bitnami-docker-mongodb). For more information please refer to the [bitnami/mongodb](http://github.com/bitnami/bitnami-docker-mongodb) image documentation.
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```bash
+$ helm install --name my-release \
+  --set mongodbRootPassword=secretpassword,mongodbUsername=my-user,mongodbPassword=my-password,mongodbDatabase=my-database \
+    stable/mongodb
+```
+
+The above command sets the MongoDB `root` account password to `secretpassword`. Additionally it creates a standard database user named `my-user`, with the password `my-password`, who has access to a database named `my-database`.
+
+Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
+
+```bash
+$ helm install --name my-release -f values.yaml stable/mongodb
+```
+
+> **Tip**: You can use the default [values.yaml](values.yaml)
+
+## Persistence
+
+The [Bitnami MongoDB](https://github.com/bitnami/bitnami-docker-mongodb) image stores the MongoDB data and configurations at the `/bitnami/mongodb` path of the container.
+
+The chart mounts a [Persistent Volume](http://kubernetes.io/docs/user-guide/persistent-volumes/) volume at this location. The volume is created using dynamic volume provisioning.

demochatChart/charts/mongodb/templates/NOTES.txt

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+MongoDB can be accessed via port 27017 on the following DNS name from within your cluster:
+{{ template "mongodb.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
+
+To connect to your database run the following command:
+
+   kubectl run {{ template "mongodb.fullname" . }}-client --rm --tty -i --image bitnami/mongodb --command -- mongo --host {{ template "mongodb.fullname" . }} {{- if .Values.mongodbRootPassword }} -p {{ .Values.mongodbRootPassword }}{{- end -}}
+

demochatChart/charts/mongodb/templates/_helpers.tpl

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

demochatChart/charts/mongodb/templates/deployment.yaml

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+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: {{ template "mongodb.fullname" . }}
+  labels:
+    app: {{ template "mongodb.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+spec:
+  template:
+    metadata:
+      labels:
+        app: {{ template "mongodb.fullname" . }}
+    spec:
+      containers:
+      - name: {{ template "mongodb.fullname" . }}
+        image: "{{ .Values.image }}"
+        imagePullPolicy: {{ default "" .Values.imagePullPolicy | quote }}
+        env:
+        - name: MONGODB_ROOT_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ template "mongodb.fullname" . }}
+              key: mongodb-root-password
+        - name: MONGODB_USERNAME
+          value: {{ default "" .Values.mongodbUsername | quote }}
+        - name: MONGODB_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ template "mongodb.fullname" . }}
+              key: mongodb-password
+        - name: MONGODB_DATABASE
+          value: {{ default "" .Values.mongodbDatabase | quote }}
+        ports:
+        - name: mongodb
+          containerPort: 27017
+        livenessProbe:
+          exec:
+            command:
+            - mongo
+            - --eval
+            - "db.adminCommand('ping')"
+          initialDelaySeconds: 30
+          timeoutSeconds: 5
+        readinessProbe:
+          exec:
+            command:
+            - mongo
+            - --eval
+            - "db.adminCommand('ping')"
+          initialDelaySeconds: 5
+          timeoutSeconds: 1
+        volumeMounts:
+        - name: data
+          mountPath: /bitnami/mongodb
+        resources:
+{{ toYaml .Values.resources | indent 10 }}
+      volumes:
+      - name: data
+      {{- if .Values.persistence.enabled }}
+        persistentVolumeClaim:
+          claimName: {{ template "mongodb.fullname" . }}
+      {{- else }}
+        emptyDir: {}
+      {{- end -}}

demochatChart/charts/mongodb/templates/pvc.yaml

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+{{- if .Values.persistence.enabled }}
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: {{ template "mongodb.fullname" . }}
+spec:
+  accessModes:
+    - {{ .Values.persistence.accessMode | quote }}
+  resources:
+    requests:
+      storage: {{ .Values.persistence.size | quote }}
+{{- if .Values.persistence.storageClass }}
+{{- if (eq "-" .Values.persistence.storageClass) }}
+  storageClassName: ""
+{{- else }}
+  storageClassName: "{{ .Values.persistence.storageClass }}"
+{{- end }}
+{{- end }}
+{{- end }}

demochatChart/charts/mongodb/templates/secrets.yaml

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ template "mongodb.fullname" . }}
+  labels:
+    app: {{ template "mongodb.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+type: Opaque
+data:
+  mongodb-root-password: {{ default "" .Values.mongodbRootPassword | b64enc | quote }}
+  mongodb-password: {{ default "" .Values.mongodbPassword | b64enc | quote }}

demochatChart/charts/mongodb/templates/svc.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "mongodb.fullname" . }}
+  labels:
+    app: {{ template "mongodb.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+spec:
+  type: {{ .Values.serviceType }}
+  ports:
+  - name: mongodb
+    port: 27017
+    targetPort: mongodb
+  selector:
+    app: {{ template "mongodb.fullname" . }}

demochatChart/charts/mongodb/values.yaml

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+## Bitnami MongoDB image version
+## ref: https://hub.docker.com/r/bitnami/mongodb/tags/
+##
+image: bitnami/mongodb:3.4.10-r0
+
+## Specify a imagePullPolicy
+## 'Always' if imageTag is 'latest', else set to 'IfNotPresent'
+## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images
+##
+# imagePullPolicy:
+
+## MongoDB admin password
+## ref: https://github.com/bitnami/bitnami-docker-mongodb/blob/master/README.md#setting-the-root-password-on-first-run
+##
+# mongodbRootPassword:
+
+## MongoDB custom user and database
+## ref: https://github.com/bitnami/bitnami-docker-mongodb/blob/master/README.md#creating-a-user-and-database-on-first-run
+##
+# mongodbUsername:
+# mongodbPassword:
+# mongodbDatabase:
+
+## Kubernetes service type
+serviceType: ClusterIP
+
+## Enable persistence using Persistent Volume Claims
+## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
+##
+persistence:
+  enabled: false
+  ## mongodb data Persistent Volume Storage Class
+  ## If defined, storageClassName: <storageClass>
+  ## If set to "-", storageClassName: "", which disables dynamic provisioning
+  ## If undefined (the default) or set to null, no storageClassName spec is
+  ##   set, choosing the default provisioner.  (gp2 on AWS, standard on
+  ##   GKE, AWS & OpenStack)
+  ##
+  # storageClass: "-"
+  accessMode: ReadWriteOnce
+  size: 8Gi
+
+## Configure resource requests and limits
+## ref: http://kubernetes.io/docs/user-guide/compute-resources/
+##
+resources:
+  requests:
+    memory: 256Mi
+    cpu: 100m

demochatChart/requirements.yaml

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+dependencies:
+  - name: mongodb
+    version: 0.4.18
+    repository: mongodb