master
Marius Ensrud 3 years ago
parent 871cdb4eb2
commit 61aabdaebd

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apiVersion: v2
name: wordpress
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: 6.2.2
# 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: "6.2.2"

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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 }}://{{ $host.host }}{{ .path }}
{{- end }}
{{- end }}
{{- else if contains "NodePort" .Values.service.type }}
export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "wordpress.fullname" . }})
export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
echo http://$NODE_IP:$NODE_PORT
{{- else if contains "LoadBalancer" .Values.service.type }}
NOTE: It may take a few minutes for the LoadBalancer IP to be available.
You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "wordpress.fullname" . }}'
export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "wordpress.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 "wordpress.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
echo "Visit http://127.0.0.1:8080 to use your application"
kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
{{- end }}

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

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apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "wordpress.fullname" . }}
labels:
{{- include "wordpress.labels" . | nindent 4 }}
spec:
{{- if not .Values.autoscaling.enabled }}
replicas: {{ .Values.replicaCount }}
{{- end }}
selector:
matchLabels:
{{- include "wordpress.selectorLabels" . | nindent 6 }}
template:
metadata:
{{- with .Values.podAnnotations }}
annotations:
{{- toYaml . | nindent 8 }}
{{- end }}
labels:
{{- include "wordpress.selectorLabels" . | nindent 8 }}
spec:
{{- with .Values.imagePullSecrets }}
imagePullSecrets:
{{- toYaml . | nindent 8 }}
{{- end }}
serviceAccountName: {{ include "wordpress.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 }}
env:
- name: WORDPRESS_DB_HOST
value: {{ .Values.env.WORDPRESS_DB_HOST | quote }}
- name: WORDPRESS_DB_NAME
value: {{ .Values.env.WORDPRESS_DB_NAME | quote }}
- name: WORDPRESS_DB_USER
value: {{ .Values.env.WORDPRESS_DB_USER | quote }}
{{- with .Values.env.WORDPRESS_CONFIG_EXTRA }}
- name: WORDPRESS_CONFIG_EXTRA
value: {{ .Values.env.WORDPRESS_CONFIG_EXTRA }}
{{- end }}
- name: WORDPRESS_DB_PASSWORD_FILE
value: "/run/secrets/mysql/password"
- name: WORDPRESS_AUTH_KEY
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: AUTH_KEY
- name: WORDPRESS_SECURE_AUTH_KEY
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: SECURE_AUTH_KEY
- name: WORDPRESS_LOGGED_IN_KEY
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: LOGGED_IN_KEY
- name: WORDPRESS_NONCE_KEY
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: NONCE_KEY
- name: WORDPRESS_AUTH_SALT
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: AUTH_SALT
- name: WORDPRESS_SECURE_AUTH_SALT
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: SECURE_AUTH_SALT
- name: WORDPRESS_LOGGED_IN_SALT
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: LOGGED_IN_SALT
- name: WORDPRESS_NONCE_SALT
valueFrom:
secretKeyRef:
name: {{ include "wordpress.fullname" . }}
key: NONCE_SALT
volumeMounts:
- name: secret
mountPath: "/run/secrets/mysql"
readOnly: true
- name: data
mountPath: "/var/www/html/wp-content"
ports:
- name: http
containerPort: 80
protocol: TCP
{{- if .Values.livenessProbe.enabled }}
livenessProbe: {{- include "common.tplvalues.render" (dict "value" (omit .Values.livenessProbe "enabled") "context" $) | nindent 12 }}
{{- else if .Values.customLivenessProbe }}
livenessProbe: {{- include "common.tplvalues.render" (dict "value" .Values.customLivenessProbe "context" $) | nindent 12 }}
{{- end }}
{{- if .Values.readinessProbe.enabled }}
readinessProbe: {{- include "common.tplvalues.render" (dict "value" (omit .Values.readinessProbe "enabled") "context" $) | nindent 12 }}
{{- else if .Values.customReadinessProbe }}
readinessProbe: {{- include "common.tplvalues.render" (dict "value" .Values.customReadinessProbe "context" $) | nindent 12 }}
{{- end }}
resources:
{{- toYaml .Values.resources | nindent 12 }}
volumes:
- name: data
persistentVolumeClaim:
claimName: {{ include "wordpress.fullname" . }}
- name: secret
secret:
secretName: {{ include "wordpress.fullname" . }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}

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

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{{- if .Values.ingress.enabled -}}
{{- $fullName := include "wordpress.fullname" . -}}
{{- $svcPort := .Values.service.port -}}
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: {{ $fullName }}
labels:
{{- include "wordpress.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: {{ .path }}
pathType: Prefix
backend:
service:
name: {{ $fullName }}
port:
number: {{ $svcPort }}
{{- end }}
{{- end }}
{{- end }}

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apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: np-{{ include "wordpress.fullname" . }}
labels:
{{- include "wordpress.labels" . | nindent 4 }}
spec:
podSelector:
matchLabels:
app.kubernetes.io/name: {{ include "wordpress.name" . }}
policyTypes:
- Ingress
ingress:
- ports:
- port: 80

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apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: {{ include "wordpress.fullname" . }}
labels:
{{- include "wordpress.labels" . | nindent 4 }}
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Gi

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apiVersion: v1
kind: Secret
metadata:
name: {{ include "wordpress.fullname" . }}
labels:
{{- include "wordpress.labels" . | nindent 4 }}
annotations:
"helm.sh/hook": "pre-install"
"helm.sh/hook-delete-policy": "before-hook-creation"
type: Opaque
data:
password: {{ default (randAlphaNum 10) .Values.env.password | b64enc | quote }}
AUTH_KEY: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.AUTH_KEY | b64enc | quote }}
SECURE_AUTH_KEY: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.SECURE_AUTH_KEY | b64enc | quote }}
LOGGED_IN_KEY: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.LOGGED_IN_KEY | b64enc | quote }}
NONCE_KEY: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.NONCE_KEY | b64enc | quote }}
AUTH_SALT: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.AUTH_SALT | b64enc | quote }}
SECURE_AUTH_SALT: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.SECURE_AUTH_SALT | b64enc | quote }}
LOGGED_IN_SALT: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.LOGGED_IN_SALT | b64enc | quote }}
NONCE_SALT: {{ default (randAlphaNum 20 | sha1sum ) .Values.env.NONCE_SALT | b64enc | quote }}

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

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

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# Default values for wordpress.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.
replicaCount: 2
image:
repository: wordpress
pullPolicy: IfNotPresent
# Overrides the image tag whose default is the chart appVersion.
tag: "6.2.2"
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: ""
env:
WORDPRESS_DB_HOST: wp_dbhost
WORDPRESS_DB_USER: wp_user
WORDPRESS_DB_NAME: wb_database
podAnnotations: {}
podSecurityContext: {}
# fsGroup: 2000
securityContext: {}
# capabilities:
# drop:
# - ALL
# # readOnlyRootFilesystem: true
# runAsNonRoot: true
# runAsUser: 1000
service:
type: ClusterIP
port: 80
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
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: 2000m
memory: 512Mi
requests:
cpu: 250m
memory: 128Mi
autoscaling:
enabled: true
minReplicas: 2
maxReplicas: 10
targetCPUUtilizationPercentage: 80
# targetMemoryUtilizationPercentage: 80
nodeSelector: {}
tolerations: []
affinity: {}
wordpressScheme: http
livenessProbe:
enabled: true
httpGet:
path: /wp-admin/install.php
port: '{{ .Values.wordpressScheme }}'
scheme: '{{ .Values.wordpressScheme | upper }}'
## If using an HTTPS-terminating load-balancer, the probes may need to behave
## like the balancer to prevent HTTP 302 responses. According to the Kubernetes
## docs, 302 should be considered "successful", but this issue on GitHub
## (https://github.com/kubernetes/kubernetes/issues/47893) shows that it isn't.
## E.g.
## httpHeaders:
## - name: X-Forwarded-Proto
## value: https
##
httpHeaders: []
initialDelaySeconds: 120
periodSeconds: 10
timeoutSeconds: 5
failureThreshold: 6
successThreshold: 1
readinessProbe:
enabled: true
httpGet:
#path: /wp-login.php
path: /?nocache
port: '{{ .Values.wordpressScheme }}'
scheme: '{{ .Values.wordpressScheme | upper }}'
## If using an HTTPS-terminating load-balancer, the probes may need to behave
## like the balancer to prevent HTTP 302 responses. According to the Kubernetes
## docs, 302 should be considered "successful", but this issue on GitHub
## (https://github.com/kubernetes/kubernetes/issues/47893) shows that it isn't.
## E.g.
## httpHeaders:
## - name: X-Forwarded-Proto
## value: https
##
httpHeaders: []
initialDelaySeconds: 30
periodSeconds: 10
timeoutSeconds: 5
failureThreshold: 6
successThreshold: 1
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