Add Chips backend chart [draft]

charts/chips-websocket/.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
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/chips-websocket/Chart.yaml

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+apiVersion: v2
+name: chips-websocket
+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"

charts/chips-websocket/templates/NOTES.txt

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+Deployed

charts/chips-websocket/templates/_helpers.tpl

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

charts/chips-websocket/templates/backendconfig.yaml

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+apiVersion: cloud.google.com/v1
+kind: BackendConfig # https://cloud.google.com/kubernetes-engine/docs/how-to/ingress-features
+metadata:
+  name: websocket-config
+  labels:
+    {{- include "chips-websocket.labels" . | nindent 4 }}
+spec:
+  timeoutSec: 3600
+  connectionDraining:
+    drainingTimeoutSec: 3600
+  sessionAffinity:
+    affinityType: "CLIENT_IP"

charts/chips-websocket/templates/clusterissuer.yaml

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+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt
+  labels:
+    {{- include "chips-websocket.labels" . | nindent 4 }}
+spec:
+  acme:
+    # The ACME server URL
+    server: https://acme-v02.api.letsencrypt.org/directory
+    # Email address used for ACME registration
+    email: [email protected] # Update to yours
+    # Name of a secret used to store the ACME account private key
+    privateKeySecretRef:
+      name: letsencrypt
+    # Enable the HTTP-01 challenge provider
+    solvers:
+    - http01:
+        ingress:
+            class: ingress-gce

charts/chips-websocket/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "chips-websocket.fullname" . }}
+  labels:
+    {{- include "chips-websocket.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "chips-websocket.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "chips-websocket.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "chips-websocket.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 }}
+          ports:
+            - name: websocket
+              containerPort: 4000
+              protocol: TCP
+            - name: publisher
+              containerPort: 4001
+              protocol: TCP
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/chips-websocket/templates/hpa.yaml

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+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "chips-websocket.fullname" . }}
+  labels:
+    {{- include "chips-websocket.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "chips-websocket.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        targetAverageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        targetAverageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

charts/chips-websocket/templates/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "chips-websocket.fullname" . }}
+  annotations:
+    # specify the name of the global IP address resource to be associated with the HTTP(S) Load Balancer.
+    kubernetes.io/ingress.global-static-ip-name: pathway-ingress
+    # add an annotation indicating the issuer to use.
+    cert-manager.io/cluster-issuer: letsencrypt
+    # controls whether the ingress is modified ‘in-place’,
+    # or a new one is created specifically for the HTTP01 challenge.
+    acme.cert-manager.io/http01-edit-in-place: "true"
+    kubernetes.io/ingress.allow-http: "false"
+  labels:
+    {{- include "chips-websocket.labels" . | nindent 4 }}
+spec:
+  tls: # < placing a host in the TLS config will indicate a certificate should be created
+  - hosts:
+    - stage-bus.trypathway.com
+    - stage-websock.trypathway.com
+    secretName: stage-bus-cert-secret # < cert-manager will store the created certificate in this secret    
+  rules:
+  - host: stage-bus.trypathway.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: {{ include "chips-websocket.fullname" . }}
+            port: 
+              number: 4001
+  - host: stage-websock.trypathway.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: {{ include "chips-websocket.fullname" . }}
+            port: 
+              number: 4000

charts/chips-websocket/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "chips-websocket.fullname" . }}
+  labels:
+    {{- include "chips-websocket.labels" . | nindent 4 }}
+  annotations:
+    cloud.google.com/backend-config: '{"ports": {
+      "websocket": "websocket-config"
+    }}'
+spec:
+  type: NodePort
+  ports:
+    - port: 4000
+      targetPort: 4000
+      protocol: TCP
+      name: websocket
+    - port: 4001
+      targetPort: 4001
+      protocol: TCP
+      name: publisher
+  selector:
+    {{- include "chips-websocket.selectorLabels" . | nindent 4 }}

charts/chips-websocket/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "chips-websocket.serviceAccountName" . }}
+  labels:
+    {{- include "chips-websocket.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

charts/chips-websocket/values.yaml

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+# Default values for chips-websocket.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: "gcr.io/pathway-staging-342900/websock"
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: "17b73c4"
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+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
+
+autoscaling:
+  enabled: false
+  minReplicas: 1
+  maxReplicas: 100
+  targetCPUUtilizationPercentage: 80
+  # targetMemoryUtilizationPercentage: 80
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}