mirror of https://github.com/helm/helm
Signed-off-by: Martin Hickey <martin.hickey@ie.ibm.com>pull/5441/head
Martin Hickey
6 years ago
parent
b1ae1acc8b
commit
b74fee715e
@ -0,0 +1,62 @@
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---
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# Source: chart-with-template-lib-archive-dep/templates/service.yaml
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apiVersion: v1
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kind: Service
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metadata:
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labels:
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app: chart-with-template-lib-archive-dep
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chart: chart-with-template-lib-archive-dep-0.1.0
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heritage: Helm
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release: RELEASE-NAME
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name: release-name-chart-with-template-lib-archive-dep
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spec:
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ports:
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- name: http
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port: 80
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targetPort: http
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selector:
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app: chart-with-template-lib-archive-dep
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release: RELEASE-NAME
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type: ClusterIP
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---
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# Source: chart-with-template-lib-archive-dep/templates/deployment.yaml
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apiVersion: apps/v1beta2
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kind: Deployment
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metadata:
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name: RELEASE-NAME-chart-with-template-lib-archive-dep
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labels:
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app: chart-with-template-lib-archive-dep
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chart: chart-with-template-lib-archive-dep-0.1.0
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release: RELEASE-NAME
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heritage: Helm
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: chart-with-template-lib-archive-dep
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release: RELEASE-NAME
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template:
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metadata:
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labels:
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app: chart-with-template-lib-archive-dep
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release: RELEASE-NAME
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spec:
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containers:
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- name: chart-with-template-lib-archive-dep
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image: "nginx:stable"
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imagePullPolicy: IfNotPresent
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ports:
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- name: http
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containerPort: 80
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protocol: TCP
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livenessProbe:
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httpGet:
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path: /
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port: http
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readinessProbe:
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httpGet:
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path: /
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port: http
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resources:
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{}
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@ -0,0 +1,62 @@
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---
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# Source: chart-with-template-lib-dep/templates/service.yaml
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apiVersion: v1
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kind: Service
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metadata:
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labels:
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app: chart-with-template-lib-dep
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chart: chart-with-template-lib-dep-0.1.0
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heritage: Helm
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release: RELEASE-NAME
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name: release-name-chart-with-template-lib-dep
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spec:
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ports:
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- name: http
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port: 80
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targetPort: http
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selector:
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app: chart-with-template-lib-dep
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release: RELEASE-NAME
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type: ClusterIP
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---
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# Source: chart-with-template-lib-dep/templates/deployment.yaml
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apiVersion: apps/v1beta2
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kind: Deployment
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metadata:
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name: RELEASE-NAME-chart-with-template-lib-dep
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labels:
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app: chart-with-template-lib-dep
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chart: chart-with-template-lib-dep-0.1.0
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release: RELEASE-NAME
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heritage: Helm
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: chart-with-template-lib-dep
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release: RELEASE-NAME
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template:
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metadata:
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labels:
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app: chart-with-template-lib-dep
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release: RELEASE-NAME
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spec:
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containers:
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- name: chart-with-template-lib-dep
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image: "nginx:stable"
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imagePullPolicy: IfNotPresent
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ports:
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- name: http
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containerPort: 80
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protocol: TCP
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livenessProbe:
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httpGet:
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path: /
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port: http
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readinessProbe:
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httpGet:
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path: /
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port: http
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resources:
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{}
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@ -0,0 +1,21 @@
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# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj
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@ -0,0 +1,6 @@
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apiVersion: v1
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appVersion: "1.0"
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description: A Helm chart for Kubernetes
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name: chart-with-template-lib-archive-dep
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type: application
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version: 0.1.0
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Binary file not shown.
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1. Get the application URL by running these commands:
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{{- if .Values.ingress.enabled }}
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{{- range .Values.ingress.hosts }}
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http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }}
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{{- end }}
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{{- else if contains "NodePort" .Values.service.type }}
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export NODE_PORT=$(kubectl get -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "chart-with-template-lib-archive-dep.fullname" . }})
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export NODE_IP=$(kubectl get nodes -o jsonpath="{.items[0].status.addresses[0].address}")
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echo http://$NODE_IP:$NODE_PORT
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{{- else if contains "LoadBalancer" .Values.service.type }}
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NOTE: It may take a few minutes for the LoadBalancer IP to be available.
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You can watch the status of by running 'kubectl get svc -w {{ template "chart-with-template-lib-archive-dep.fullname" . }}'
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export SERVICE_IP=$(kubectl get svc {{ template "chart-with-template-lib-archive-dep.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
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echo http://$SERVICE_IP:{{ .Values.service.port }}
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{{- else if contains "ClusterIP" .Values.service.type }}
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export POD_NAME=$(kubectl get pods -l "app={{ template "chart-with-template-lib-archive-dep.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
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echo "Visit http://127.0.0.1:8080 to use your application"
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kubectl port-forward $POD_NAME 8080:80
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{{- end }}
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@ -0,0 +1,32 @@
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{{/* vim: set filetype=mustache: */}}
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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "chart-with-template-lib-archive-dep.name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "chart-with-template-lib-archive-dep.fullname" -}}
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{{- if .Values.fullnameOverride -}}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- $name := default .Chart.Name .Values.nameOverride -}}
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{{- if contains $name .Release.Name -}}
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{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "chart-with-template-lib-archive-dep.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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apiVersion: apps/v1beta2
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kind: Deployment
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metadata:
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name: {{ template "chart-with-template-lib-archive-dep.fullname" . }}
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labels:
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app: {{ template "chart-with-template-lib-archive-dep.name" . }}
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chart: {{ template "chart-with-template-lib-archive-dep.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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spec:
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replicas: {{ .Values.replicaCount }}
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selector:
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matchLabels:
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app: {{ template "chart-with-template-lib-archive-dep.name" . }}
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release: {{ .Release.Name }}
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template:
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metadata:
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labels:
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app: {{ template "chart-with-template-lib-archive-dep.name" . }}
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release: {{ .Release.Name }}
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spec:
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containers:
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- name: {{ .Chart.Name }}
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image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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ports:
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- name: http
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containerPort: 80
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protocol: TCP
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livenessProbe:
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httpGet:
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path: /
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port: http
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readinessProbe:
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httpGet:
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path: /
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port: http
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resources:
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{{ toYaml .Values.resources | indent 12 }}
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{{- with .Values.nodeSelector }}
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nodeSelector:
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{{ toYaml . | indent 8 }}
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{{- end }}
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{{- with .Values.affinity }}
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affinity:
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{{ toYaml . | indent 8 }}
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{{- end }}
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{{- with .Values.tolerations }}
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tolerations:
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{{ toYaml . | indent 8 }}
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{{- end }}
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@ -0,0 +1,38 @@
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{{- if .Values.ingress.enabled -}}
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{{- $fullName := include "chart-with-template-lib-archive-dep.fullname" . -}}
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{{- $ingressPath := .Values.ingress.path -}}
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apiVersion: extensions/v1beta1
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kind: Ingress
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metadata:
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name: {{ $fullName }}
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labels:
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app: {{ template "chart-with-template-lib-archive-dep.name" . }}
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chart: {{ template "chart-with-template-lib-archive-dep.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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{{- with .Values.ingress.annotations }}
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annotations:
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{{ toYaml . | indent 4 }}
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{{- end }}
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spec:
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{{- if .Values.ingress.tls }}
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tls:
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{{- range .Values.ingress.tls }}
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- hosts:
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{{- range .hosts }}
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- {{ . }}
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{{- end }}
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secretName: {{ .secretName }}
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{{- end }}
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{{- end }}
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rules:
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{{- range .Values.ingress.hosts }}
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- host: {{ . }}
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http:
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paths:
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- path: {{ $ingressPath }}
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backend:
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serviceName: {{ $fullName }}
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servicePort: http
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{{- end }}
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{{- end }}
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@ -0,0 +1,10 @@
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{{- template "common.service" (list . "chart-with-template-lib-archive-dep.service") -}}
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{{- define "chart-with-template-lib-archive-dep.service" -}}
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## Define overrides for your Service resource here, e.g.
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# metadata:
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# labels:
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# custom: label
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# spec:
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# ports:
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# - port: 8080
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{{- end -}}
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@ -0,0 +1,48 @@
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# Default values for chart-with-template-lib-archive-dep.
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# This is a YAML-formatted file.
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# Declare variables to be passed into your templates.
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replicaCount: 1
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image:
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repository: nginx
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tag: stable
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pullPolicy: IfNotPresent
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nameOverride: ""
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fullnameOverride: ""
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service:
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type: ClusterIP
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port: 80
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ingress:
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enabled: false
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annotations: {}
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# kubernetes.io/ingress.class: nginx
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# kubernetes.io/tls-acme: "true"
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path: /
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hosts:
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- chart-example.local
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tls: []
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# - secretName: chart-example-tls
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# hosts:
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# - chart-example.local
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resources: {}
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# We usually recommend not to specify default resources and to leave this as a conscious
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# choice for the user. This also increases chances charts run on environments with little
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# resources, such as Minikube. If you do want to specify resources, uncomment the following
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# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
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# limits:
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# cpu: 100m
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# memory: 128Mi
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# requests:
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# cpu: 100m
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# memory: 128Mi
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nodeSelector: {}
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tolerations: []
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affinity: {}
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@ -0,0 +1,21 @@
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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
|
||||
*~
|
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# Various IDEs
|
||||
.project
|
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.idea/
|
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*.tmproj
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@ -0,0 +1,6 @@
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apiVersion: v1
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appVersion: "1.0"
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description: A Helm chart for Kubernetes
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name: chart-with-template-lib-dep
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type: application
|
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version: 0.1.0
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@ -0,0 +1,21 @@
|
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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
|
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@ -0,0 +1,12 @@
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apiVersion: v1
|
||||
appVersion: 0.0.5
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||||
description: Common chartbuilding components and helpers
|
||||
home: https://helm.sh
|
||||
maintainers:
|
||||
- email: technosophos@gmail.com
|
||||
name: technosophos
|
||||
- email: adnan@bitnami.com
|
||||
name: prydonius
|
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name: common
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version: 0.0.5
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type: library
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@ -0,0 +1,831 @@
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# Common: The Helm Helper Chart
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||||
|
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This chart is designed to make it easier for you to build and maintain Helm
|
||||
charts.
|
||||
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||||
It provides utilities that reflect best practices of Kubernetes chart development,
|
||||
making it faster for you to write charts.
|
||||
|
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## Tips
|
||||
|
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A few tips for working with Common:
|
||||
|
||||
- Be careful when using functions that generate random data (like `common.fullname.unique`).
|
||||
They may trigger unwanted upgrades or have other side effects.
|
||||
|
||||
In this document, we use `RELEASE-NAME` as the name of the release.
|
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|
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## Resource Kinds
|
||||
|
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Kubernetes defines a variety of resource kinds, from `Secret` to `StatefulSet`.
|
||||
We define some of the most common kinds in a way that lets you easily work with
|
||||
them.
|
||||
|
||||
The resource kind templates are designed to make it much faster for you to
|
||||
define _basic_ versions of these resources. They allow you to extend and modify
|
||||
just what you need, without having to copy around lots of boilerplate.
|
||||
|
||||
To make use of these templates you must define a template that will extend the
|
||||
base template (though it can be empty). The name of this template is then passed
|
||||
to the base template, for example:
|
||||
|
||||
```yaml
|
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{{- template "common.service" (list . "mychart.service") -}}
|
||||
{{- define "mychart.service" -}}
|
||||
## Define overrides for your Service resource here, e.g.
|
||||
# metadata:
|
||||
# labels:
|
||||
# custom: label
|
||||
# spec:
|
||||
# ports:
|
||||
# - port: 8080
|
||||
{{- end -}}
|
||||
```
|
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|
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Note that the `common.service` template defines two parameters:
|
||||
|
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- The root context (usually `.`)
|
||||
- A template name containing the service definition overrides
|
||||
|
||||
A limitation of the Go template library is that a template can only take a
|
||||
single argument. The `list` function is used to workaround this by constructing
|
||||
a list or array of arguments that is passed to the template.
|
||||
|
||||
The `common.service` template is responsible for rendering the templates with
|
||||
the root context and merging any overrides. As you can see, this makes it very
|
||||
easy to create a basic `Service` resource without having to copy around the
|
||||
standard metadata and labels.
|
||||
|
||||
Each implemented base resource is described in greater detail below.
|
||||
|
||||
### `common.service`
|
||||
|
||||
The `common.service` template creates a basic `Service` resource with the
|
||||
following defaults:
|
||||
|
||||
- Service type (ClusterIP, NodePort, LoadBalancer) made configurable by `.Values.service.type`
|
||||
- Named port `http` configured on port 80
|
||||
- Selector set to `app: {{ template "common.name" }}, release: {{ .Release.Name | quote }}` to match the default used in the `Deployment` resource
|
||||
|
||||
Example template:
|
||||
|
||||
```yaml
|
||||
{{- template "common.service" (list . "mychart.mail.service") -}}
|
||||
{{- define "mychart.mail.service" -}}
|
||||
metadata:
|
||||
name: {{ template "common.fullname" . }}-mail # overrides the default name to add a suffix
|
||||
labels: # appended to the labels section
|
||||
protocol: mail
|
||||
spec:
|
||||
ports: # composes the `ports` section of the service definition.
|
||||
- name: smtp
|
||||
port: 25
|
||||
targetPort: 25
|
||||
- name: imaps
|
||||
port: 993
|
||||
targetPort: 993
|
||||
selector: # this is appended to the default selector
|
||||
protocol: mail
|
||||
{{- end -}}
|
||||
---
|
||||
{{ template "common.service" (list . "mychart.web.service") -}}
|
||||
{{- define "mychart.web.service" -}}
|
||||
metadata:
|
||||
name: {{ template "common.fullname" . }}-www # overrides the default name to add a suffix
|
||||
labels: # appended to the labels section
|
||||
protocol: www
|
||||
spec:
|
||||
ports: # composes the `ports` section of the service definition.
|
||||
- name: www
|
||||
port: 80
|
||||
targetPort: 8080
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
The above template defines _two_ services: a web service and a mail service.
|
||||
|
||||
The most important part of a service definition is the `ports` object, which
|
||||
defines the ports that this service will listen on. Most of the time,
|
||||
`selector` is computed for you. But you can replace it or add to it.
|
||||
|
||||
The output of the example above is:
|
||||
|
||||
```yaml
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
labels:
|
||||
app: service
|
||||
chart: service-0.1.0
|
||||
heritage: Tiller
|
||||
protocol: mail
|
||||
release: release-name
|
||||
name: release-name-service-mail
|
||||
spec:
|
||||
ports:
|
||||
- name: smtp
|
||||
port: 25
|
||||
targetPort: 25
|
||||
- name: imaps
|
||||
port: 993
|
||||
targetPort: 993
|
||||
selector:
|
||||
app: service
|
||||
release: release-name
|
||||
protocol: mail
|
||||
type: ClusterIP
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
labels:
|
||||
app: service
|
||||
chart: service-0.1.0
|
||||
heritage: Tiller
|
||||
protocol: www
|
||||
release: release-name
|
||||
name: release-name-service-www
|
||||
spec:
|
||||
ports:
|
||||
- name: www
|
||||
port: 80
|
||||
targetPort: 8080
|
||||
type: ClusterIP
|
||||
```
|
||||
|
||||
## `common.deployment`
|
||||
|
||||
The `common.deployment` template defines a basic `Deployment`. Underneath the
|
||||
hood, it uses `common.container` (see next section).
|
||||
|
||||
By default, the pod template within the deployment defines the labels `app: {{ template "common.name" . }}`
|
||||
and `release: {{ .Release.Name | quote }` as this is also used as the selector. The
|
||||
standard set of labels are not used as some of these can change during upgrades,
|
||||
which causes the replica sets and pods to not correctly match.
|
||||
|
||||
Example use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.deployment" (list . "mychart.deployment") -}}
|
||||
{{- define "mychart.deployment" -}}
|
||||
## Define overrides for your Deployment resource here, e.g.
|
||||
spec:
|
||||
replicas: {{ .Values.replicaCount }}
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
## `common.container`
|
||||
|
||||
The `common.container` template creates a basic `Container` spec to be used
|
||||
within a `Deployment` or `ReplicaSet`. It holds the following defaults:
|
||||
|
||||
- The name is set to the chart name
|
||||
- Uses `.Values.image` to describe the image to run, with the following spec:
|
||||
```yaml
|
||||
image:
|
||||
repository: nginx
|
||||
tag: stable
|
||||
pullPolicy: IfNotPresent
|
||||
```
|
||||
- Exposes the named port `http` as port 80
|
||||
- Lays out the compute resources using `.Values.resources`
|
||||
|
||||
Example use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.deployment" (list . "mychart.deployment") -}}
|
||||
{{- define "mychart.deployment" -}}
|
||||
## Define overrides for your Deployment resource here, e.g.
|
||||
spec:
|
||||
template:
|
||||
spec:
|
||||
containers:
|
||||
- {{ template "common.container" (list . "mychart.deployment.container") }}
|
||||
{{- end -}}
|
||||
{{- define "mychart.deployment.container" -}}
|
||||
## Define overrides for your Container here, e.g.
|
||||
livenessProbe:
|
||||
httpGet:
|
||||
path: /
|
||||
port: 80
|
||||
readinessProbe:
|
||||
httpGet:
|
||||
path: /
|
||||
port: 80
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
The above example creates a `Deployment` resource which makes use of the
|
||||
`common.container` template to populate the PodSpec's container list. The usage
|
||||
of this template is similar to the other resources, you must define and
|
||||
reference a template that contains overrides for the container object.
|
||||
|
||||
The most important part of a container definition is the image you want to run.
|
||||
As mentioned above, this is derived from `.Values.image` by default. It is a
|
||||
best practice to define the image, tag and pull policy in your charts' values as
|
||||
this makes it easy for an operator to change the image registry, or use a
|
||||
specific tag or version. Another example of configuration that should be exposed
|
||||
to chart operators is the container's required compute resources, as this is
|
||||
also very specific to an operators environment. An example `values.yaml` for
|
||||
your chart could look like:
|
||||
|
||||
```yaml
|
||||
image:
|
||||
repository: nginx
|
||||
tag: stable
|
||||
pullPolicy: IfNotPresent
|
||||
resources:
|
||||
limits:
|
||||
cpu: 100m
|
||||
memory: 128Mi
|
||||
requests:
|
||||
cpu: 100m
|
||||
memory: 128Mi
|
||||
```
|
||||
|
||||
The output of running the above values through the earlier template is:
|
||||
|
||||
```yaml
|
||||
apiVersion: extensions/v1beta1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
labels:
|
||||
app: deployment
|
||||
chart: deployment-0.1.0
|
||||
heritage: Tiller
|
||||
release: release-name
|
||||
name: release-name-deployment
|
||||
spec:
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: deployment
|
||||
spec:
|
||||
containers:
|
||||
- image: nginx:stable
|
||||
imagePullPolicy: IfNotPresent
|
||||
livenessProbe:
|
||||
httpGet:
|
||||
path: /
|
||||
port: 80
|
||||
name: deployment
|
||||
ports:
|
||||
- containerPort: 80
|
||||
name: http
|
||||
readinessProbe:
|
||||
httpGet:
|
||||
path: /
|
||||
port: 80
|
||||
resources:
|
||||
limits:
|
||||
cpu: 100m
|
||||
memory: 128Mi
|
||||
requests:
|
||||
cpu: 100m
|
||||
memory: 128Mi
|
||||
```
|
||||
|
||||
## `common.configmap`
|
||||
|
||||
The `common.configmap` template creates an empty `ConfigMap` resource that you
|
||||
can override with your configuration.
|
||||
|
||||
Example use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.configmap" (list . "mychart.configmap") -}}
|
||||
{{- define "mychart.configmap" -}}
|
||||
data:
|
||||
zeus: cat
|
||||
athena: cat
|
||||
julius: cat
|
||||
one: |-
|
||||
{{ .Files.Get "file1.txt" }}
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```yaml
|
||||
apiVersion: v1
|
||||
data:
|
||||
athena: cat
|
||||
julius: cat
|
||||
one: This is a file.
|
||||
zeus: cat
|
||||
kind: ConfigMap
|
||||
metadata:
|
||||
labels:
|
||||
app: configmap
|
||||
chart: configmap-0.1.0
|
||||
heritage: Tiller
|
||||
release: release-name
|
||||
name: release-name-configmap
|
||||
```
|
||||
|
||||
## `common.secret`
|
||||
|
||||
The `common.secret` template creates an empty `Secret` resource that you
|
||||
can override with your secrets.
|
||||
|
||||
Example use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.secret" (list . "mychart.secret") -}}
|
||||
{{- define "mychart.secret" -}}
|
||||
data:
|
||||
zeus: {{ print "cat" | b64enc }}
|
||||
athena: {{ print "cat" | b64enc }}
|
||||
julius: {{ print "cat" | b64enc }}
|
||||
one: |-
|
||||
{{ .Files.Get "file1.txt" | b64enc }}
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```yaml
|
||||
apiVersion: v1
|
||||
data:
|
||||
athena: Y2F0
|
||||
julius: Y2F0
|
||||
one: VGhpcyBpcyBhIGZpbGUuCg==
|
||||
zeus: Y2F0
|
||||
kind: Secret
|
||||
metadata:
|
||||
labels:
|
||||
app: secret
|
||||
chart: secret-0.1.0
|
||||
heritage: Tiller
|
||||
release: release-name
|
||||
name: release-name-secret
|
||||
type: Opaque
|
||||
```
|
||||
|
||||
## `common.ingress`
|
||||
|
||||
The `common.ingress` template is designed to give you a well-defined `Ingress`
|
||||
resource, that can be configured using `.Values.ingress`. An example values file
|
||||
that can be used to configure the `Ingress` resource is:
|
||||
|
||||
```yaml
|
||||
ingress:
|
||||
hosts:
|
||||
- chart-example.local
|
||||
annotations:
|
||||
kubernetes.io/ingress.class: nginx
|
||||
kubernetes.io/tls-acme: "true"
|
||||
tls:
|
||||
- secretName: chart-example-tls
|
||||
hosts:
|
||||
- chart-example.local
|
||||
```
|
||||
|
||||
Example use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.ingress" (list . "mychart.ingress") -}}
|
||||
{{- define "mychart.ingress" -}}
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```yaml
|
||||
apiVersion: extensions/v1beta1
|
||||
kind: Ingress
|
||||
metadata:
|
||||
annotations:
|
||||
kubernetes.io/ingress.class: nginx
|
||||
kubernetes.io/tls-acme: "true"
|
||||
labels:
|
||||
app: ingress
|
||||
chart: ingress-0.1.0
|
||||
heritage: Tiller
|
||||
release: release-name
|
||||
name: release-name-ingress
|
||||
spec:
|
||||
rules:
|
||||
- host: chart-example.local
|
||||
http:
|
||||
paths:
|
||||
- backend:
|
||||
serviceName: release-name-ingress
|
||||
servicePort: 80
|
||||
path: /
|
||||
tls:
|
||||
- hosts:
|
||||
- chart-example.local
|
||||
secretName: chart-example-tls
|
||||
```
|
||||
|
||||
## `common.persistentvolumeclaim`
|
||||
|
||||
`common.persistentvolumeclaim` can be used to easily add a
|
||||
`PersistentVolumeClaim` resource to your chart that can be configured using
|
||||
`.Values.persistence`:
|
||||
|
||||
| Value | Description |
|
||||
| ------------------------- | ------------------------------------------------------------------------------------------------------- |
|
||||
| persistence.enabled | Whether or not to claim a persistent volume. If false, `common.volume.pvc` will use an emptyDir instead |
|
||||
| persistence.storageClass | `StorageClass` name |
|
||||
| persistence.accessMode | Access mode for persistent volume |
|
||||
| persistence.size | Size of persistent volume |
|
||||
| persistence.existingClaim | If defined, `PersistentVolumeClaim` is not created and `common.volume.pvc` helper uses this claim |
|
||||
|
||||
An example values file that can be used to configure the
|
||||
`PersistentVolumeClaim` resource is:
|
||||
|
||||
```yaml
|
||||
persistence:
|
||||
enabled: true
|
||||
storageClass: fast
|
||||
accessMode: ReadWriteOnce
|
||||
size: 8Gi
|
||||
```
|
||||
|
||||
Example use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.persistentvolumeclaim" (list . "mychart.persistentvolumeclaim") -}}
|
||||
{{- define "mychart.persistentvolumeclaim" -}}
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```yaml
|
||||
apiVersion: v1
|
||||
kind: PersistentVolumeClaim
|
||||
metadata:
|
||||
labels:
|
||||
app: persistentvolumeclaim
|
||||
chart: persistentvolumeclaim-0.1.0
|
||||
heritage: Tiller
|
||||
release: release-name
|
||||
name: release-name-persistentvolumeclaim
|
||||
spec:
|
||||
accessModes:
|
||||
- ReadWriteOnce
|
||||
resources:
|
||||
requests:
|
||||
storage: 8Gi
|
||||
storageClassName: "fast"
|
||||
```
|
||||
|
||||
## Partial API Objects
|
||||
|
||||
When writing Kubernetes resources, you may find the following helpers useful to
|
||||
construct parts of the spec.
|
||||
|
||||
### EnvVar
|
||||
|
||||
Use the EnvVar helpers within a container spec to simplify specifying key-value
|
||||
environment variables or referencing secrets as values.
|
||||
|
||||
Example Use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.deployment" (list . "mychart.deployment") -}}
|
||||
{{- define "mychart.deployment" -}}
|
||||
spec:
|
||||
template:
|
||||
spec:
|
||||
containers:
|
||||
- {{ template "common.container" (list . "mychart.deployment.container") }}
|
||||
{{- end -}}
|
||||
{{- define "mychart.deployment.container" -}}
|
||||
{{- $fullname := include "common.fullname" . -}}
|
||||
env:
|
||||
- {{ template "common.envvar.value" (list "ZEUS" "cat") }}
|
||||
- {{ template "common.envvar.secret" (list "ATHENA" "secret-name" "athena") }}
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```yaml
|
||||
...
|
||||
spec:
|
||||
containers:
|
||||
- env:
|
||||
- name: ZEUS
|
||||
value: cat
|
||||
- name: ATHENA
|
||||
valueFrom:
|
||||
secretKeyRef:
|
||||
key: athena
|
||||
name: secret-name
|
||||
...
|
||||
```
|
||||
|
||||
### Volume
|
||||
|
||||
Use the Volume helpers within a `Deployment` spec to help define ConfigMap and
|
||||
PersistentVolumeClaim volumes.
|
||||
|
||||
Example Use:
|
||||
|
||||
```yaml
|
||||
{{- template "common.deployment" (list . "mychart.deployment") -}}
|
||||
{{- define "mychart.deployment" -}}
|
||||
spec:
|
||||
template:
|
||||
spec:
|
||||
volumes:
|
||||
- {{ template "common.volume.configMap" (list "config" "configmap-name") }}
|
||||
- {{ template "common.volume.pvc" (list "data" "pvc-name" .Values.persistence) }}
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```yaml
|
||||
...
|
||||
spec:
|
||||
volumes:
|
||||
- configMap:
|
||||
name: configmap-name
|
||||
name: config
|
||||
- name: data
|
||||
persistentVolumeClaim:
|
||||
claimName: pvc-name
|
||||
...
|
||||
```
|
||||
|
||||
The `common.volume.pvc` helper uses the following configuration from the `.Values.persistence` object:
|
||||
|
||||
| Value | Description |
|
||||
| ------------------------- | ----------------------------------------------------- |
|
||||
| persistence.enabled | If false, creates an `emptyDir` instead |
|
||||
| persistence.existingClaim | If set, uses this instead of the passed in claim name |
|
||||
|
||||
## Utilities
|
||||
|
||||
### `common.fullname`
|
||||
|
||||
The `common.fullname` template generates a name suitable for the `name:` field
|
||||
in Kubernetes metadata. It is used like this:
|
||||
|
||||
```yaml
|
||||
name: {{ template "common.fullname" . }}
|
||||
```
|
||||
|
||||
The following different values can influence it:
|
||||
|
||||
```yaml
|
||||
# By default, fullname uses '{{ .Release.Name }}-{{ .Chart.Name }}'. This
|
||||
# overrides that and uses the given string instead.
|
||||
fullnameOverride: "some-name"
|
||||
|
||||
# This adds a prefix
|
||||
fullnamePrefix: "pre-"
|
||||
# This appends a suffix
|
||||
fullnameSuffix: "-suf"
|
||||
|
||||
# Global versions of the above
|
||||
global:
|
||||
fullnamePrefix: "pp-"
|
||||
fullnameSuffix: "-ps"
|
||||
```
|
||||
|
||||
Example output:
|
||||
|
||||
```yaml
|
||||
---
|
||||
# with the values above
|
||||
name: pp-pre-some-name-suf-ps
|
||||
|
||||
---
|
||||
# the default, for release "happy-panda" and chart "wordpress"
|
||||
name: happy-panda-wordpress
|
||||
```
|
||||
|
||||
Output of this function is truncated at 54 characters, which leaves 9 additional
|
||||
characters for customized overriding. Thus you can easily extend this name
|
||||
in your own charts:
|
||||
|
||||
```yaml
|
||||
{{- define "my.fullname" -}}
|
||||
{{ template "common.fullname" . }}-my-stuff
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
### `common.fullname.unique`
|
||||
|
||||
The `common.fullname.unique` variant of fullname appends a unique seven-character
|
||||
sequence to the end of the common name field.
|
||||
|
||||
This takes all of the same parameters as `common.fullname`
|
||||
|
||||
Example template:
|
||||
|
||||
```yaml
|
||||
uniqueName: {{ template "common.fullname.unique" . }}
|
||||
```
|
||||
|
||||
Example output:
|
||||
|
||||
```yaml
|
||||
uniqueName: release-name-fullname-jl0dbwx
|
||||
```
|
||||
|
||||
It is also impacted by the prefix and suffix definitions, as well as by
|
||||
`.Values.fullnameOverride`
|
||||
|
||||
Note that the effective maximum length of this function is 63 characters, not 54.
|
||||
|
||||
### `common.name`
|
||||
|
||||
The `common.name` template generates a name suitable for the `app` label. It is used like this:
|
||||
|
||||
```yaml
|
||||
app: {{ template "common.name" . }}
|
||||
```
|
||||
|
||||
The following different values can influence it:
|
||||
|
||||
```yaml
|
||||
# By default, name uses '{{ .Chart.Name }}'. This
|
||||
# overrides that and uses the given string instead.
|
||||
nameOverride: "some-name"
|
||||
|
||||
# This adds a prefix
|
||||
namePrefix: "pre-"
|
||||
# This appends a suffix
|
||||
nameSuffix: "-suf"
|
||||
|
||||
# Global versions of the above
|
||||
global:
|
||||
namePrefix: "pp-"
|
||||
nameSuffix: "-ps"
|
||||
```
|
||||
|
||||
Example output:
|
||||
|
||||
```yaml
|
||||
---
|
||||
# with the values above
|
||||
name: pp-pre-some-name-suf-ps
|
||||
|
||||
---
|
||||
# the default, for chart "wordpress"
|
||||
name: wordpress
|
||||
```
|
||||
|
||||
Output of this function is truncated at 54 characters, which leaves 9 additional
|
||||
characters for customized overriding. Thus you can easily extend this name
|
||||
in your own charts:
|
||||
|
||||
```yaml
|
||||
{{- define "my.name" -}}
|
||||
{{ template "common.name" . }}-my-stuff
|
||||
{{- end -}}
|
||||
```
|
||||
|
||||
### `common.metadata`
|
||||
|
||||
The `common.metadata` helper generates the `metadata:` section of a Kubernetes
|
||||
resource.
|
||||
|
||||
This takes three objects:
|
||||
- .top: top context
|
||||
- .fullnameOverride: override the fullname with this name
|
||||
- .metadata
|
||||
- .labels: key/value list of labels
|
||||
- .annotations: key/value list of annotations
|
||||
- .hook: name(s) of hook(s)
|
||||
|
||||
It generates standard labels, annotations, hooks, and a name field.
|
||||
|
||||
Example template:
|
||||
|
||||
```yaml
|
||||
{{ template "common.metadata" (dict "top" . "metadata" .Values.bio) }}
|
||||
---
|
||||
{{ template "common.metadata" (dict "top" . "metadata" .Values.pet "fullnameOverride" .Values.pet.fullnameOverride) }}
|
||||
```
|
||||
|
||||
Example values:
|
||||
|
||||
```yaml
|
||||
bio:
|
||||
name: example
|
||||
labels:
|
||||
first: matt
|
||||
last: butcher
|
||||
nick: technosophos
|
||||
annotations:
|
||||
format: bio
|
||||
destination: archive
|
||||
hook: pre-install
|
||||
|
||||
pet:
|
||||
fullnameOverride: Zeus
|
||||
|
||||
```
|
||||
|
||||
Example output:
|
||||
|
||||
```yaml
|
||||
metadata:
|
||||
name: release-name-metadata
|
||||
labels:
|
||||
app: metadata
|
||||
heritage: "Tiller"
|
||||
release: "RELEASE-NAME"
|
||||
chart: metadata-0.1.0
|
||||
first: "matt"
|
||||
last: "butcher"
|
||||
nick: "technosophos"
|
||||
annotations:
|
||||
"destination": "archive"
|
||||
"format": "bio"
|
||||
"helm.sh/hook": "pre-install"
|
||||
---
|
||||
metadata:
|
||||
name: Zeus
|
||||
labels:
|
||||
app: metadata
|
||||
heritage: "Tiller"
|
||||
release: "RELEASE-NAME"
|
||||
chart: metadata-0.1.0
|
||||
annotations:
|
||||
```
|
||||
|
||||
Most of the common templates that define a resource type (e.g. `common.configmap`
|
||||
or `common.job`) use this to generate the metadata, which means they inherit
|
||||
the same `labels`, `annotations`, `nameOverride`, and `hook` fields.
|
||||
|
||||
### `common.labelize`
|
||||
|
||||
`common.labelize` turns a map into a set of labels.
|
||||
|
||||
Example template:
|
||||
|
||||
```yaml
|
||||
{{- $map := dict "first" "1" "second" "2" "third" "3" -}}
|
||||
{{- template "common.labelize" $map -}}
|
||||
```
|
||||
|
||||
Example output:
|
||||
|
||||
```yaml
|
||||
first: "1"
|
||||
second: "2"
|
||||
third: "3"
|
||||
```
|
||||
|
||||
### `common.labels.standard`
|
||||
|
||||
`common.labels.standard` prints the standard set of labels.
|
||||
|
||||
Example usage:
|
||||
|
||||
```
|
||||
{{ template "common.labels.standard" . }}
|
||||
```
|
||||
|
||||
Example output:
|
||||
|
||||
```yaml
|
||||
app: labelizer
|
||||
heritage: "Tiller"
|
||||
release: "RELEASE-NAME"
|
||||
chart: labelizer-0.1.0
|
||||
```
|
||||
|
||||
### `common.hook`
|
||||
|
||||
The `common.hook` template is a convenience for defining hooks.
|
||||
|
||||
Example template:
|
||||
|
||||
```yaml
|
||||
{{ template "common.hook" "pre-install,post-install" }}
|
||||
```
|
||||
|
||||
Example output:
|
||||
|
||||
```yaml
|
||||
"helm.sh/hook": "pre-install,post-install"
|
||||
```
|
||||
|
||||
### `common.chartref`
|
||||
|
||||
The `common.chartref` helper prints the chart name and version, escaped to be
|
||||
legal in a Kubernetes label field.
|
||||
|
||||
Example template:
|
||||
|
||||
```yaml
|
||||
chartref: {{ template "common.chartref" . }}
|
||||
```
|
||||
|
||||
For the chart `foo` with version `1.2.3-beta.55+1234`, this will render:
|
||||
|
||||
```yaml
|
||||
chartref: foo-1.2.3-beta.55_1234
|
||||
```
|
||||
|
||||
(Note that `+` is an illegal character in label values)
|
||||
@ -0,0 +1,14 @@
|
||||
{{- /*
|
||||
common.chartref prints a chart name and version.
|
||||
|
||||
It does minimal escaping for use in Kubernetes labels.
|
||||
|
||||
Example output:
|
||||
|
||||
zookeeper-1.2.3
|
||||
wordpress-3.2.1_20170219
|
||||
|
||||
*/ -}}
|
||||
{{- define "common.chartref" -}}
|
||||
{{- replace "+" "_" .Chart.Version | printf "%s-%s" .Chart.Name -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,9 @@
|
||||
{{- define "common.configmap.tpl" -}}
|
||||
apiVersion: v1
|
||||
kind: ConfigMap
|
||||
{{ template "common.metadata" . }}
|
||||
data: {}
|
||||
{{- end -}}
|
||||
{{- define "common.configmap" -}}
|
||||
{{- template "common.util.merge" (append . "common.configmap.tpl") -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,15 @@
|
||||
{{- define "common.container.tpl" -}}
|
||||
name: {{ .Chart.Name }}
|
||||
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
|
||||
imagePullPolicy: {{ .Values.image.pullPolicy }}
|
||||
ports:
|
||||
- name: http
|
||||
containerPort: 80
|
||||
resources:
|
||||
{{ toYaml .Values.resources | indent 2 }}
|
||||
{{- end -}}
|
||||
{{- define "common.container" -}}
|
||||
{{- /* clear new line so indentation works correctly */ -}}
|
||||
{{- println "" -}}
|
||||
{{- include "common.util.merge" (append . "common.container.tpl") | indent 8 -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,18 @@
|
||||
{{- define "common.deployment.tpl" -}}
|
||||
apiVersion: extensions/v1beta1
|
||||
kind: Deployment
|
||||
{{ template "common.metadata" . }}
|
||||
spec:
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: {{ template "common.name" . }}
|
||||
release: {{ .Release.Name | quote }}
|
||||
spec:
|
||||
containers:
|
||||
-
|
||||
{{ include "common.container.tpl" . | indent 8 }}
|
||||
{{- end -}}
|
||||
{{- define "common.deployment" -}}
|
||||
{{- template "common.util.merge" (append . "common.deployment.tpl") -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,31 @@
|
||||
{{- define "common.envvar.value" -}}
|
||||
{{- $name := index . 0 -}}
|
||||
{{- $value := index . 1 -}}
|
||||
|
||||
name: {{ $name }}
|
||||
value: {{ default "" $value | quote }}
|
||||
{{- end -}}
|
||||
|
||||
{{- define "common.envvar.configmap" -}}
|
||||
{{- $name := index . 0 -}}
|
||||
{{- $configMapName := index . 1 -}}
|
||||
{{- $configMapKey := index . 2 -}}
|
||||
|
||||
name: {{ $name }}
|
||||
valueFrom:
|
||||
configMapKeyRef:
|
||||
name: {{ $configMapName }}
|
||||
key: {{ $configMapKey }}
|
||||
{{- end -}}
|
||||
|
||||
{{- define "common.envvar.secret" -}}
|
||||
{{- $name := index . 0 -}}
|
||||
{{- $secretName := index . 1 -}}
|
||||
{{- $secretKey := index . 2 -}}
|
||||
|
||||
name: {{ $name }}
|
||||
valueFrom:
|
||||
secretKeyRef:
|
||||
name: {{ $secretName }}
|
||||
key: {{ $secretKey }}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,39 @@
|
||||
{{- /*
|
||||
fullname defines a suitably unique name for a resource by combining
|
||||
the release name and the chart name.
|
||||
|
||||
The prevailing wisdom is that names should only contain a-z, 0-9 plus dot (.) and dash (-), and should
|
||||
not exceed 63 characters.
|
||||
|
||||
Parameters:
|
||||
|
||||
- .Values.fullnameOverride: Replaces the computed name with this given name
|
||||
- .Values.fullnamePrefix: Prefix
|
||||
- .Values.global.fullnamePrefix: Global prefix
|
||||
- .Values.fullnameSuffix: Suffix
|
||||
- .Values.global.fullnameSuffix: Global suffix
|
||||
|
||||
The applied order is: "global prefix + prefix + name + suffix + global suffix"
|
||||
|
||||
Usage: 'name: "{{- template "common.fullname" . -}}"'
|
||||
*/ -}}
|
||||
{{- define "common.fullname"}}
|
||||
{{- $global := default (dict) .Values.global -}}
|
||||
{{- $base := default (printf "%s-%s" .Release.Name .Chart.Name) .Values.fullnameOverride -}}
|
||||
{{- $gpre := default "" $global.fullnamePrefix -}}
|
||||
{{- $pre := default "" .Values.fullnamePrefix -}}
|
||||
{{- $suf := default "" .Values.fullnameSuffix -}}
|
||||
{{- $gsuf := default "" $global.fullnameSuffix -}}
|
||||
{{- $name := print $gpre $pre $base $suf $gsuf -}}
|
||||
{{- $name | lower | trunc 54 | trimSuffix "-" -}}
|
||||
{{- end -}}
|
||||
|
||||
{{- /*
|
||||
common.fullname.unique adds a random suffix to the unique name.
|
||||
|
||||
This takes the same parameters as common.fullname
|
||||
|
||||
*/ -}}
|
||||
{{- define "common.fullname.unique" -}}
|
||||
{{ template "common.fullname" . }}-{{ randAlphaNum 7 | lower }}
|
||||
{{- end }}
|
||||
@ -0,0 +1,27 @@
|
||||
{{- define "common.ingress.tpl" -}}
|
||||
apiVersion: extensions/v1beta1
|
||||
kind: Ingress
|
||||
{{ template "common.metadata" . }}
|
||||
{{- if .Values.ingress.annotations }}
|
||||
annotations:
|
||||
{{ include "common.annote" .Values.ingress.annotations | indent 4 }}
|
||||
{{- end }}
|
||||
spec:
|
||||
rules:
|
||||
{{- range $host := .Values.ingress.hosts }}
|
||||
- host: {{ $host }}
|
||||
http:
|
||||
paths:
|
||||
- path: /
|
||||
backend:
|
||||
serviceName: {{ template "common.fullname" $ }}
|
||||
servicePort: 80
|
||||
{{- end }}
|
||||
{{- if .Values.ingress.tls }}
|
||||
tls:
|
||||
{{ toYaml .Values.ingress.tls | indent 4 }}
|
||||
{{- end -}}
|
||||
{{- end -}}
|
||||
{{- define "common.ingress" -}}
|
||||
{{- template "common.util.merge" (append . "common.ingress.tpl") -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,10 @@
|
||||
{{- /*
|
||||
common.metadata creates a standard metadata header.
|
||||
It creates a 'metadata:' section with name and labels.
|
||||
*/ -}}
|
||||
{{ define "common.metadata" -}}
|
||||
metadata:
|
||||
name: {{ template "common.fullname" . }}
|
||||
labels:
|
||||
{{ include "common.labels.standard" . | indent 4 -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,18 @@
|
||||
{{- /*
|
||||
common.hook defines a hook.
|
||||
|
||||
This is to be used in a 'metadata.annotations' section.
|
||||
|
||||
This should be called as 'template "common.metadata.hook" "post-install"'
|
||||
|
||||
Any valid hook may be passed in. Separate multiple hooks with a ",".
|
||||
*/ -}}
|
||||
{{- define "common.hook" -}}
|
||||
"helm.sh/hook": {{printf "%s" . | quote}}
|
||||
{{- end -}}
|
||||
|
||||
{{- define "common.annote" -}}
|
||||
{{- range $k, $v := . }}
|
||||
{{ $k | quote }}: {{ $v | quote }}
|
||||
{{- end -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,28 @@
|
||||
{{- /*
|
||||
common.labelize takes a dict or map and generates labels.
|
||||
|
||||
Values will be quoted. Keys will not.
|
||||
|
||||
Example output:
|
||||
|
||||
first: "Matt"
|
||||
last: "Butcher"
|
||||
|
||||
*/ -}}
|
||||
{{- define "common.labelize" -}}
|
||||
{{- range $k, $v := . }}
|
||||
{{ $k }}: {{ $v | quote }}
|
||||
{{- end -}}
|
||||
{{- end -}}
|
||||
|
||||
{{- /*
|
||||
common.labels.standard prints the standard Helm labels.
|
||||
|
||||
The standard labels are frequently used in metadata.
|
||||
*/ -}}
|
||||
{{- define "common.labels.standard" -}}
|
||||
app: {{ template "common.name" . }}
|
||||
chart: {{ template "common.chartref" . }}
|
||||
heritage: {{ .Release.Service | quote }}
|
||||
release: {{ .Release.Name | quote }}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,29 @@
|
||||
{{- /*
|
||||
name defines a template for the name of the chart. It should be used for the `app` label.
|
||||
This is common practice in many Kubernetes manifests, and is not Helm-specific.
|
||||
|
||||
The prevailing wisdom is that names should only contain a-z, 0-9 plus dot (.) and dash (-), and should
|
||||
not exceed 63 characters.
|
||||
|
||||
Parameters:
|
||||
|
||||
- .Values.nameOverride: Replaces the computed name with this given name
|
||||
- .Values.namePrefix: Prefix
|
||||
- .Values.global.namePrefix: Global prefix
|
||||
- .Values.nameSuffix: Suffix
|
||||
- .Values.global.nameSuffix: Global suffix
|
||||
|
||||
The applied order is: "global prefix + prefix + name + suffix + global suffix"
|
||||
|
||||
Usage: 'name: "{{- template "common.name" . -}}"'
|
||||
*/ -}}
|
||||
{{- define "common.name"}}
|
||||
{{- $global := default (dict) .Values.global -}}
|
||||
{{- $base := default .Chart.Name .Values.nameOverride -}}
|
||||
{{- $gpre := default "" $global.namePrefix -}}
|
||||
{{- $pre := default "" .Values.namePrefix -}}
|
||||
{{- $suf := default "" .Values.nameSuffix -}}
|
||||
{{- $gsuf := default "" $global.nameSuffix -}}
|
||||
{{- $name := print $gpre $pre $base $suf $gsuf -}}
|
||||
{{- $name | lower | trunc 54 | trimSuffix "-" -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,24 @@
|
||||
{{- define "common.persistentvolumeclaim.tpl" -}}
|
||||
apiVersion: v1
|
||||
kind: PersistentVolumeClaim
|
||||
{{ template "common.metadata" . }}
|
||||
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 -}}
|
||||
{{- define "common.persistentvolumeclaim" -}}
|
||||
{{- $top := first . -}}
|
||||
{{- if and $top.Values.persistence.enabled (not $top.Values.persistence.existingClaim) -}}
|
||||
{{- template "common.util.merge" (append . "common.persistentvolumeclaim.tpl") -}}
|
||||
{{- end -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,10 @@
|
||||
{{- define "common.secret.tpl" -}}
|
||||
apiVersion: v1
|
||||
kind: Secret
|
||||
{{ template "common.metadata" . }}
|
||||
type: Opaque
|
||||
data: {}
|
||||
{{- end -}}
|
||||
{{- define "common.secret" -}}
|
||||
{{- template "common.util.merge" (append . "common.secret.tpl") -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,17 @@
|
||||
{{- define "common.service.tpl" -}}
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
{{ template "common.metadata" . }}
|
||||
spec:
|
||||
type: {{ .Values.service.type }}
|
||||
ports:
|
||||
- name: http
|
||||
port: 80
|
||||
targetPort: http
|
||||
selector:
|
||||
app: {{ template "common.name" . }}
|
||||
release: {{ .Release.Name | quote }}
|
||||
{{- end -}}
|
||||
{{- define "common.service" -}}
|
||||
{{- template "common.util.merge" (append . "common.service.tpl") -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,15 @@
|
||||
{{- /*
|
||||
common.util.merge will merge two YAML templates and output the result.
|
||||
|
||||
This takes an array of three values:
|
||||
- the top context
|
||||
- the template name of the overrides (destination)
|
||||
- the template name of the base (source)
|
||||
|
||||
*/ -}}
|
||||
{{- define "common.util.merge" -}}
|
||||
{{- $top := first . -}}
|
||||
{{- $overrides := fromYaml (include (index . 1) $top) | default (dict ) -}}
|
||||
{{- $tpl := fromYaml (include (index . 2) $top) | default (dict ) -}}
|
||||
{{- toYaml (merge $overrides $tpl) -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,22 @@
|
||||
{{- define "common.volume.configMap" -}}
|
||||
{{- $name := index . 0 -}}
|
||||
{{- $configMapName := index . 1 -}}
|
||||
|
||||
name: {{ $name }}
|
||||
configMap:
|
||||
name: {{ $configMapName }}
|
||||
{{- end -}}
|
||||
|
||||
{{- define "common.volume.pvc" -}}
|
||||
{{- $name := index . 0 -}}
|
||||
{{- $claimName := index . 1 -}}
|
||||
{{- $persistence := index . 2 -}}
|
||||
|
||||
name: {{ $name }}
|
||||
{{- if $persistence.enabled }}
|
||||
persistentVolumeClaim:
|
||||
claimName: {{ $persistence.existingClaim | default $claimName }}
|
||||
{{- else }}
|
||||
emptyDir: {}
|
||||
{{- end -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,6 @@
|
||||
apiVersion: v1
|
||||
kind: ConfigMap
|
||||
metadata:
|
||||
name: common-configmap
|
||||
data:
|
||||
myvalue: "Hello World"
|
||||
@ -0,0 +1,4 @@
|
||||
# Default values for commons.
|
||||
# This is a YAML-formatted file.
|
||||
# Declare name/value pairs to be passed into your templates.
|
||||
# name: value
|
||||
@ -0,0 +1,19 @@
|
||||
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 -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "chart-with-template-lib-dep.fullname" . }})
|
||||
export NODE_IP=$(kubectl get nodes -o jsonpath="{.items[0].status.addresses[0].address}")
|
||||
echo http://$NODE_IP:$NODE_PORT
|
||||
{{- else if contains "LoadBalancer" .Values.service.type }}
|
||||
NOTE: It may take a few minutes for the LoadBalancer IP to be available.
|
||||
You can watch the status of by running 'kubectl get svc -w {{ template "chart-with-template-lib-dep.fullname" . }}'
|
||||
export SERVICE_IP=$(kubectl get svc {{ template "chart-with-template-lib-dep.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 -l "app={{ template "chart-with-template-lib-dep.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 }}
|
||||
@ -0,0 +1,32 @@
|
||||
{{/* vim: set filetype=mustache: */}}
|
||||
{{/*
|
||||
Expand the name of the chart.
|
||||
*/}}
|
||||
{{- define "chart-with-template-lib-dep.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 "chart-with-template-lib-dep.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 "chart-with-template-lib-dep.chart" -}}
|
||||
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
|
||||
{{- end -}}
|
||||
@ -0,0 +1,51 @@
|
||||
apiVersion: apps/v1beta2
|
||||
kind: Deployment
|
||||
metadata:
|
||||
name: {{ template "chart-with-template-lib-dep.fullname" . }}
|
||||
labels:
|
||||
app: {{ template "chart-with-template-lib-dep.name" . }}
|
||||
chart: {{ template "chart-with-template-lib-dep.chart" . }}
|
||||
release: {{ .Release.Name }}
|
||||
heritage: {{ .Release.Service }}
|
||||
spec:
|
||||
replicas: {{ .Values.replicaCount }}
|
||||
selector:
|
||||
matchLabels:
|
||||
app: {{ template "chart-with-template-lib-dep.name" . }}
|
||||
release: {{ .Release.Name }}
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: {{ template "chart-with-template-lib-dep.name" . }}
|
||||
release: {{ .Release.Name }}
|
||||
spec:
|
||||
containers:
|
||||
- name: {{ .Chart.Name }}
|
||||
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
|
||||
imagePullPolicy: {{ .Values.image.pullPolicy }}
|
||||
ports:
|
||||
- name: http
|
||||
containerPort: 80
|
||||
protocol: TCP
|
||||
livenessProbe:
|
||||
httpGet:
|
||||
path: /
|
||||
port: http
|
||||
readinessProbe:
|
||||
httpGet:
|
||||
path: /
|
||||
port: http
|
||||
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 }}
|
||||
@ -0,0 +1,38 @@
|
||||
{{- if .Values.ingress.enabled -}}
|
||||
{{- $fullName := include "chart-with-template-lib-dep.fullname" . -}}
|
||||
{{- $ingressPath := .Values.ingress.path -}}
|
||||
apiVersion: extensions/v1beta1
|
||||
kind: Ingress
|
||||
metadata:
|
||||
name: {{ $fullName }}
|
||||
labels:
|
||||
app: {{ template "chart-with-template-lib-dep.name" . }}
|
||||
chart: {{ template "chart-with-template-lib-dep.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 }}
|
||||
@ -0,0 +1,10 @@
|
||||
{{- template "common.service" (list . "chart-with-template-lib-dep.service") -}}
|
||||
{{- define "chart-with-template-lib-dep.service" -}}
|
||||
## Define overrides for your Service resource here, e.g.
|
||||
# metadata:
|
||||
# labels:
|
||||
# custom: label
|
||||
# spec:
|
||||
# ports:
|
||||
# - port: 8080
|
||||
{{- end -}}
|
||||
@ -0,0 +1,48 @@
|
||||
# Default values for chart-with-template-lib-dep.
|
||||
# This is a YAML-formatted file.
|
||||
# Declare variables to be passed into your templates.
|
||||
|
||||
replicaCount: 1
|
||||
|
||||
image:
|
||||
repository: nginx
|
||||
tag: stable
|
||||
pullPolicy: IfNotPresent
|
||||
|
||||
nameOverride: ""
|
||||
fullnameOverride: ""
|
||||
|
||||
service:
|
||||
type: ClusterIP
|
||||
port: 80
|
||||
|
||||
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
|
||||
|
||||
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: {}
|
||||
Loading…
Reference in new issue