initial commit for node-red chart

Signed-off-by: Jeff Billimek <jeff@billimek.com>

node-red/.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

node-red/Chart.yaml

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+apiVersion: v1
+appVersion: 0.19.4
+description: Node-RED
+name: node-red
+version: 0.0.3
+keywords:
+  - nodered
+  - node-red
+home: https://github.com/node-red/node-red-docker
+icon: https://nodered.org/about/resources/media/node-red-icon-2.png
+sources:
+  - https://github.com/node-red/node-red-docker
+  - https://github.com/kubernetes/charts/stable/node-red
+maintainers:
+  - name: billimek
+    email: jeff@billimek.com

node-red/README.md

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+# Node-RED
+
+Flow-based programming for the Internet of Things
+
+## TL;DR;
+
+```console
+helm repo add billimek https://raw.githubusercontent.com/billimek/helm-repo/master
+helm install billimek/node-red
+```
+
+## Introduction
+
+This code is adopted from the [official node-red docker image](https://hub.docker.com/r/nodered/node-red-docker/) which runs the [Node-RED application](https://nodered.org/)
+
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```console
+helm install --name my-release billimek/node-red
+```
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```console
+helm delete my-release --purge
+```
+
+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 Sentry chart and their default values.
+
+| Parameter                            | Description                                | Default                                                    |
+| -------------------------------      | -------------------------------            | ---------------------------------------------------------- |
+| `image.repository`                   | node-red image                             | `nodered/node-red-docker` |
+| `image.tag`                          | node-red image tag                         | `0.19.4` |
+| `image.pullPolicy`                   | node-red image pull policy                 | `IfNotPresent` |
+| `flows`                              | Default flows configuration                | `` |
+| `nodeOptions`                        | Node.js runtime arguments                  | `` |
+| `timezone`                           | Default timezone                           | `` |
+| `service.type`                       | Kubernetes service type for the GUI        | `ClusterIP` |
+| `service.port`                       | Kubernetes port where the GUI is exposed   | `1880` |
+| `service.nodePort`                   | Kubernetes nodePort where the GUI is exposed | `` |
+| `service.annotations`                | Service annotations for the GUI            | `{}` |
+| `service.labels`                     | Custom labels                              | `{}` |
+| `service.loadBalancerIP`             | Loadbalance IP for the GUI                 | `{}` |
+| `service.loadBalancerSourceRanges`   | List of IP CIDRs allowed access to load balancer (if supported) | None
+| `service.externalTrafficPolicy`      | Set the externalTrafficPolicy in the Service to either Cluster or Local | `Cluster`
+| `ingress.enabled`                    | Enables Ingress                            | `false` |
+| `ingress.annotations`                | Ingress annotations                        | `{}` |
+| `ingress.path`                       | Ingress path                               | `/` |
+| `ingress.hosts`                      | Ingress accepted hostnames                 | `chart-example.local` |
+| `ingress.tls`                        | Ingress TLS configuration                  | `[]` |
+| `persistence.enabled`                | Use persistent volume to store data        | `false` |
+| `persistence.size`                   | Size of persistent volume claim            | `5Gi` |
+| `persistence.existingClaim`          | Use an existing PVC to persist data        | `nil` |
+| `persistence.storageClass`           | Type of persistent volume claim            | `-` |
+| `persistence.accessModes`            | Persistence access modes                   | `ReadWriteOnce` |
+| `resources`                          | CPU/Memory resource requests/limits        | `{}` |
+| `nodeSelector`                       | Node labels for pod assignment             | `{}` |
+| `tolerations`                        | Toleration labels for pod assignment       | `[]` |
+| `affinity`                           | Affinity settings for pod assignment       | `{}` |
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```console
+helm install --name my-release \
+  --set config.timezone="America/New_York" \
+    billimek/node-red
+```
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
+
+```console
+helm install --name my-release -f values.yaml billimek/node-red
+```
+
+Read through the [values.yaml](values.yaml) file. It has several commented out suggested values.

node-red/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 {{ include "node-red.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get svc -w {{ include "node-red.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "node-red.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.kubernetes.io/name={{ include "node-red.name" . }},app.kubernetes.io/instance={{ .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 }}

node-red/templates/_helpers.tpl

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

node-red/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "node-red.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "node-red.name" . }}
+    helm.sh/chart: {{ include "node-red.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "node-red.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ include "node-red.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 1880
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          env:
+            - name: FLOWS
+              value: "{{ .Values.flows }}"
+            - name: NODE_OPTIONS
+              value: "{{ .Values.nodeOptions }}"
+            - name: TZ
+              value: "{{ .Values.timezone }}"
+          volumeMounts:
+            - name: data
+              mountPath: /data
+          resources:
+{{ toYaml .Values.resources | indent 12 }}
+      volumes:
+        - name: data
+        {{- if .Values.persistence.enabled }}
+          persistentVolumeClaim:
+            claimName: {{ if .Values.persistence.existingClaim }}{{ .Values.persistence.existingClaim }}{{- else }}{{ template "node-red.fullname" . }}{{- end }}
+        {{- else }}
+          emptyDir: {}
+        {{ end }}
+    {{- with .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | indent 8 }}
+    {{- end }}

node-red/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "node-red.fullname" . -}}
+{{- $ingressPath := .Values.ingress.path -}}
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    app.kubernetes.io/name: {{ include "node-red.name" . }}
+    helm.sh/chart: {{ include "node-red.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- with .Values.ingress.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+  {{- range .Values.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . | quote }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ . | quote }}
+      http:
+        paths:
+          - path: {{ $ingressPath }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: http
+  {{- end }}
+{{- end }}

node-red/templates/pvc.yaml

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+{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: {{ template "node-red.fullname" . }}
+  labels:
+    app: {{ template "node-red.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+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 -}}

node-red/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "node-red.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "node-red.name" . }}
+    helm.sh/chart: {{ include "node-red.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+spec:
+{{- if (or (eq .Values.service.type "ClusterIP") (empty .Values.service.type)) }}
+  type: ClusterIP
+{{- else if eq .Values.service.type "LoadBalancer" }}
+  type: {{ .Values.service.type }}
+  {{- if .Values.service.loadBalancerIP }}
+  loadBalancerIP: {{ .Values.service.loadBalancerIP }}
+  {{- end }}
+  {{- if .Values.service.loadBalancerSourceRanges }}
+  loadBalancerSourceRanges:
+{{ toYaml .Values.service.loadBalancerSourceRanges | indent 4 }}
+  {{- end -}}
+{{- else }}
+  type: {{ .Values.service.type }}
+{{- end }}
+  {{- if .Values.service.externalTrafficPolicy }}
+  externalTrafficPolicy: {{ .Values.service.externalTrafficPolicy }}
+  {{- end }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+{{ if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.nodePort))) }}
+      nodePort: {{.Values.service.nodePort}}
+{{ end }}
+  selector:
+    app.kubernetes.io/name: {{ include "node-red.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}

node-red/values.yaml

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+# Default values for node-red.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: nodered/node-red-docker
+  tag: 0.19.4
+  pullPolicy: IfNotPresent
+
+nameOverride: ""
+fullnameOverride: ""
+
+# flows: ""
+# nodeOptions: ""
+# timezone: ""
+
+service:
+  type: ClusterIP
+  port: 1880
+  ## Specify the nodePort value for the LoadBalancer and NodePort service types.
+  ## ref: https://kubernetes.io/docs/concepts/services-networking/service/#type-nodeport
+  ##
+  # nodePort:
+  ## Provide any additional annotations which may be required. This can be used to
+  ## set the LoadBalancer service type to internal only.
+  ## ref: https://kubernetes.io/docs/concepts/services-networking/service/#internal-load-balancer
+  ##
+  annotations: {}
+  labels: {}
+  ## Use loadBalancerIP to request a specific static IP,
+  ## otherwise leave blank
+  ##
+  loadBalancerIP:
+  # loadBalancerSourceRanges: []
+  ## Set the externalTrafficPolicy in the Service to either Cluster or Local
+  # externalTrafficPolicy: Cluster
+
+ingress:
+  enabled: false
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  path: /
+  hosts:
+    - chart-example.local
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+persistence:
+  enabled: false
+  ## node-red 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: "-"
+  ##
+  ## If you want to reuse an existing claim, you can pass the name of the PVC using
+  ## the existingClaim variable
+  # existingClaim: your-claim
+  accessMode: ReadWriteOnce
+  size: 5Gi
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #  cpu: 100m
+  #  memory: 128Mi
+  # requests:
+  #  cpu: 100m
+  #  memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}