[stable/hubot] New Hubot chart (helm#5702)

* Create initial hubot chart

* Add hubot icon

* Add help for configuring hubot

* Update maintainer email

* Remove unnecessary namespace parameter

* Fix indentation typo

* Use stable docker image version

* Use IfNotPresent image pull policy

* Move scripts to separated configmap

* Remove namespace completely

stable/hubot/Chart.yaml

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+apiVersion: v1
+description: Hubot chatbot for Slack
+name: hubot
+version: 0.0.1
+appVersion: 0.1.9
+home: https://github.com/mind-doc/hubot
+sources:
+  - https://github.com/mind-doc/hubot
+keywords:
+  - slack
+  - hubot
+  - chatbot
+icon: https://i.imgur.com/UIkAW9t.png
+maintainers:
+  - name: darioblanco
+    email: [email protected]

stable/hubot/README.md

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+# Hubot
+
+Hubot 3 chatbot with the Slack adaptor
+
+Learn more: https://github.com/mind-doc/hubot
+
+## TL;DR;
+
+```bash
+$ helm install stable/hubot
+```
+
+## Introduction
+
+This chart creates a Hubot deployment on a [Kubernetes](http://kubernetes.io)
+cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.8+ with Beta APIs enabled
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```bash
+$ helm install --name my-release stable/hubot
+```
+
+The command deploys Hubot on the Kubernetes cluster using the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```bash
+$ helm delete --purge my-release
+```
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The following table lists the configurable parameters of the Hubot chart and their default values.
+
+Parameter | Description | Default
+--- | --- | ---
+`namespace` | namespace to use | `default`
+`replicaCount` | desired number of pods | `1`
+`image.repository` | container image repository | `minddocdev/hubot`
+`image.tag` | container image tag | `latest`
+`image.pullPolicy` | container image pull policy | `Always`
+`service.type` | type of service to create | `NodePort`
+`service.httpPort` | port for the http service | `80`
+`ingress.enabled` | flag to add ingress functionality | `false`
+`ingress.annotations` | ingress load balancer annotations | `Always`
+`ingress.path` | proxied path | `/`
+`ingress.hosts` | proxied hosts | `[ hubot.local ]`
+`ingress.tls` | tls certificate secrets | `[]`
+`resources` | resource requests & limits | `{}`
+`nodeSelector` | node selector logic | `{}`
+`tolerations` | resource tolerations | `{}`
+`affinity` | node affinity | `{}`
+`hubot.config` | hubot configuration (environment variables) | `{}`
+`hubot.scriptsFolder` | hubot scripts folder path | `/minddocbot/scripts`
+`hubot.scripts` | custom hubot scripts | `{ health.coffee: <script content> }`
+`hubot.slackToken` | slack hubot integration token | `''`
+
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```bash
+$ helm install --name my-release \
+    --set key_1=value_1,key_2=value_2 \
+    stable/hubot
+```
+
+Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
+
+```bash
+# example for staging
+$ helm install --name my-release -f values.yaml stable/hubot
+```
+
+> **Tip**: You can use the default [values.yaml](values.yaml)
+
+### Specific hubot settings
+
+#### Config
+
+With the `hubot.config` parameter you can provide a hash that will be used as environment variables by hubot. These environment variables will be picked by hubot's scripts.
+
+For instance:
+
+```
+hubot:
+  config:
+    HUBOT_STANDUP_PREPEND: '@channel'
+```
+
+#### Scripts
+
+In addition, you can add your own scripts, which will be created in the scripts folder, with `.js` or `.coffee` format. See [Hubot Scripting](https://hubot.github.com/docs/scripting/).
+
+By default, this chart adds a health endpoint so Kubernetes can probe the pod.
+
+```
+hubot:
+  scripts:
+    health.coffee: |
+      # Description
+      #   A hubot script that exposes a health endpoint
+      module.exports = (robot) ->
+        robot.router.get '/health', (req, res) -> res.status(200).end()
+```
+
+You can follow the same format for creating your own hubot scripts
+```
+hubot:
+  scripts:
+    hithere.coffee: |
+      # Description
+      #   A hubot script that is an example for this chart
+      module.exports = (robot) ->
+        robot.respond /hi my bot/i, (msg) ->
+          msg.send 'Hi there my human'
+```

stable/hubot/templates/NOTES.txt

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+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range .Values.ingress.hosts }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "hubot.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get svc -w {{ template "hubot.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "hubot.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "hubot.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl port-forward $POD_NAME 8080:80
+{{- end }}

stable/hubot/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "hubot.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 "hubot.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 "hubot.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

stable/hubot/templates/configmap-scripts.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "hubot.fullname" . }}-scripts
+  labels:
+    app: {{ template "hubot.name" . }}
+    chart: {{ template "hubot.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+data:
+{{ toYaml .Values.hubot.scripts | indent 2 }}

stable/hubot/templates/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "hubot.fullname" . }}
+  labels:
+    app: {{ template "hubot.name" . }}
+    chart: {{ template "hubot.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+data:
+{{ toYaml .Values.hubot.config | indent 2 }}

stable/hubot/templates/deployment.yaml

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+apiVersion: apps/v1beta1
+kind: Deployment
+metadata:
+  name: {{ template "hubot.fullname" . }}
+  labels:
+    app: {{ template "hubot.name" . }}
+    chart: {{ template "hubot.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ template "hubot.name" . }}
+      release: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app: {{ template "hubot.name" . }}
+        release: {{ .Release.Name }}
+    spec:
+      volumes:
+        - name: {{ template "hubot.fullname" . }}-scripts
+          configMap:
+            name: {{ template "hubot.fullname" . }}-scripts
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 8080
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: http
+          volumeMounts:
+            - name: {{ template "hubot.fullname" . }}-scripts
+              mountPath: {{ .Values.hubot.scriptsFolder }}
+          envFrom:
+            - secretRef:
+                name: {{ template "hubot.fullname" . }}
+            - configMapRef:
+                name: {{ template "hubot.fullname" . }}
+          resources:
+{{ toYaml .Values.resources | indent 12 }}
+    {{- with .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | indent 8 }}
+    {{- end }}

stable/hubot/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "hubot.fullname" . -}}
+{{- $servicePort := .Values.service.port -}}
+{{- $ingressPath := .Values.ingress.path -}}
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    app: {{ template "hubot.name" . }}
+    chart: {{ template "hubot.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+{{- with .Values.ingress.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+  {{- range .Values.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ . }}
+      http:
+        paths:
+          - path: {{ $ingressPath }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: http
+  {{- end }}
+{{- end }}

stable/hubot/templates/secret.yaml

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ template "hubot.fullname" . }}
+  labels:
+    app: {{ template "hubot.name" . }}
+    chart: {{ template "hubot.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+type: Opaque
+data:
+  HUBOT_SLACK_TOKEN: {{ .Values.hubot.slackToken | b64enc }}

stable/hubot/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "hubot.fullname" . }}
+  labels:
+    app: {{ template "hubot.name" . }}
+    chart: {{ template "hubot.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - name: http
+      port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+  selector:
+    app: {{ template "hubot.name" . }}
+    release: {{ .Release.Name }}