Merge pull request #10 from Improwised/healthchecks

healthchecks chart

healthchecks/.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/
+*values-override*
+*healthchecks-secret*
+*fleet*

healthchecks/Chart.yaml

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+version: 1.0.3
+apiVersion: v2
+name: healthchecks
+description: A Helm chart for Kubernetes
+maintainers:
+- email: pratik@improeised.com
+  name: praitk
+
+# 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/)
+
+# 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.
+appVersion: 1.16.0
+
+sources:
+- https://github.com/healthchecks/healthchecks
+dependencies:
+  - name: postgresql
+    version: 9.1.1
+    repository: https://charts.bitnami.com/bitnami
+    condition: postgresql.enabled,global.postgresql.enabled

healthchecks/templates/NOTES.txt

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

healthchecks/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "healthchecks.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 "healthchecks.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 "healthchecks.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "healthchecks.labels" -}}
+helm.sh/chart: {{ include "healthchecks.chart" . }}
+{{ include "healthchecks.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "healthchecks.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "healthchecks.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+

healthchecks/templates/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "healthchecks.fullname" . }}
+  labels:
+    {{- include "healthchecks.labels" . | nindent 4 }}
+data:
+  PUID: "1000"
+  PGID: "1000"
+  {{- if .Values.postgresql.enabled }}
+  DB: "postgres"
+  DB_HOST: "{{ .Release.Name }}-postgresql.{{ .Release.Namespace }}.svc.cluster.local"
+  DB_PORT: {{ default "5432" .Values.postgresql.service.port | quote }}
+  DB_NAME: {{ default "healthckecks" .Values.postgresql.postgresqlDatabase | quote }}
+  DB_USER: {{ default "healthckecks" .Values.postgresql.postgresqlUsername | quote }}
+  {{- end }}
+  EMAIL_HOST: {{ .Values.email.host | quote }}
+  EMAIL_PORT: {{ .Values.email.port | quote }}
+  EMAIL_HOST_USER: {{ .Values.email.user | quote }}
+  {{- if .Values.siterootOverride }}
+  SITE_ROOT: {{ .Values.siterootOverride | quote }}
+  {{- else if .Values.ingress.enabled }}
+  {{- range $host := .Values.ingress.hosts }}
+    {{- range .paths }}
+  SITE_ROOT: "http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ trimSuffix "/" . }}"
+    {{- end }}
+  {{- end }}
+  {{- else }}
+  SITE_ROOT: "http://localhost:8000"
+  {{- end }}
+  {{- if .Values.sitenameOverride }}
+  SITE_NAME: {{ .Values.sitenameOverride | quote }}
+  {{- else }}
+  SITE_NAME: "localhost"
+  {{- end}}
+  {{- range $key, $val := .Values.extraenvs  }}
+  {{ $key }}: {{ $val | quote }}
+  {{- end }}

healthchecks/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "healthchecks.fullname" . }}
+  labels:
+    {{- include "healthchecks.labels" . | nindent 4 }}
+spec:
+{{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+{{- end }}
+  selector:
+    matchLabels:
+      {{- include "healthchecks.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+    {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      labels:
+        {{- include "healthchecks.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ default "latest" .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          envFrom:
+            - configMapRef:
+                name: {{ include "healthchecks.fullname" . }}
+          env:
+          {{- if or .Values.existingSecret }}
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ default .Values.existingSecret }}
+                  key: postgresql-password
+            - name: EMAIL_HOST_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingSecret }}
+                  key: email-host-password
+            - name: SUPERUSER_EMAIL
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingSecret }}
+                  key: superuser-email
+            - name: SUPERUSER_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingSecret }}
+                  key: superuser-password
+          {{- else }}
+            - name: DB_PASSWORD
+              value: "healthchecks"
+            - name: EMAIL_HOST_PASSWORD
+              value: "healthchecks"
+            - name: SUPERUSER_EMAIL
+              value: "admin@healthchecks.com"
+            - name: SUPERUSER_PASSWORD
+              value: "healthchecks"
+          {{- end }}
+          ports:
+            - name: http
+              containerPort: 8000
+              protocol: TCP
+              {{- if .Values.probs }}
+{{ toYaml .Values.probs | indent 10 }}
+              {{- end }}
+          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 }}

healthchecks/templates/hpa.yaml

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+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "healthchecks.fullname" . }}
+  labels:
+    {{- include "healthchecks.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "healthchecks.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 }}

healthchecks/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "healthchecks.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "healthchecks.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 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: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ . }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+          {{- end }}
+    {{- end }}
+  {{- end }}

healthchecks/templates/service.yaml

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

healthchecks/templates/tests/test-connection.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "healthchecks.fullname" . }}-test-connection"
+  labels:
+    {{- include "healthchecks.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "healthchecks.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never

healthchecks/values.yaml

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+# Default values for healthchecks.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: linuxserver/healthchecks
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: "amd64-version-v1.16.0"
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+# override site root url (SITE_ROOT env) see below for more details
+# https://github.com/healthchecks/healthchecks
+siterootOverride: ""
+# override site name (SITE_NAME env) see below for more details
+sitenameOverride: ""
+
+#  for postgres password, email host password, superuser email, superuser password
+existingSecret: healthchecks-secret
+
+#configure SMTP host
+email:
+  host: 
+  port: 1025
+  user: test
+
+# pass more environment variables, more details below
+#https://github.com/healthchecks/healthchecks#configuration
+extraenvs:
+  EMAIL_USE_TLS: "False"
+
+probs:
+  livenessProbe:
+    httpGet:
+      path: /
+      port: http
+  readinessProbe:
+    httpGet:
+      path: /
+      port: http    
+
+service:
+  type: ClusterIP
+  port: 8000
+
+ingress:
+  enabled: false
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths: []
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+postgresql:
+  enabled: true
+  persistence:
+    enabled: true
+  postgresqlDatabase: healthchecks
+  postgresqlUsername: healthchecks
+  postgresqlPassword: healthchecks
+# existingSecret: healthchecks-secret
+
+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
+
+podAnnotations: {}
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}