From 70d372079321ca4a371ca72b4bd289bc90dd1cc8 Mon Sep 17 00:00:00 2001
From: Steffen Vogel <post@steffenvogel.de>
Date: Mon, 17 Feb 2020 12:49:10 +0100
Subject: [PATCH] started with template for new Helm chart
---
chart/villas/.helmignore | 22 +++++++
chart/villas/Chart.yaml | 21 ++++++
chart/villas/templates/NOTES.txt | 21 ++++++
chart/villas/templates/_helpers.tpl | 63 ++++++++++++++++++
chart/villas/templates/deployment.yaml | 55 ++++++++++++++++
chart/villas/templates/ingress.yaml | 41 ++++++++++++
chart/villas/templates/service.yaml | 15 +++++
chart/villas/templates/serviceaccount.yaml | 8 +++
.../templates/tests/test-connection.yaml | 15 +++++
chart/villas/values.yaml | 66 +++++++++++++++++++
10 files changed, 327 insertions(+)
create mode 100644 chart/villas/.helmignore
create mode 100644 chart/villas/Chart.yaml
create mode 100644 chart/villas/templates/NOTES.txt
create mode 100644 chart/villas/templates/_helpers.tpl
create mode 100644 chart/villas/templates/deployment.yaml
create mode 100644 chart/villas/templates/ingress.yaml
create mode 100644 chart/villas/templates/service.yaml
create mode 100644 chart/villas/templates/serviceaccount.yaml
create mode 100644 chart/villas/templates/tests/test-connection.yaml
create mode 100644 chart/villas/values.yaml
diff --git a/chart/villas/.helmignore b/chart/villas/.helmignore
new file mode 100644
index 0000000..50af031
--- /dev/null
+++ b/chart/villas/.helmignore
@@ -0,0 +1,22 @@
+# 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
+.vscode/
diff --git a/chart/villas/Chart.yaml b/chart/villas/Chart.yaml
new file mode 100644
index 0000000..c48b2e5
--- /dev/null
+++ b/chart/villas/Chart.yaml
@@ -0,0 +1,21 @@
+apiVersion: v2
+name: villas
+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.
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application.
+appVersion: 1.16.0
diff --git a/chart/villas/templates/NOTES.txt b/chart/villas/templates/NOTES.txt
new file mode 100644
index 0000000..d2b5239
--- /dev/null
+++ b/chart/villas/templates/NOTES.txt
@@ -0,0 +1,21 @@
+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 "villas.fullname" . }})
+ export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+ echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+ NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+ You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "villas.fullname" . }}'
+ export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "villas.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 "villas.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 }}
diff --git a/chart/villas/templates/_helpers.tpl b/chart/villas/templates/_helpers.tpl
new file mode 100644
index 0000000..f55b5b4
--- /dev/null
+++ b/chart/villas/templates/_helpers.tpl
@@ -0,0 +1,63 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "villas.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 "villas.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 "villas.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "villas.labels" -}}
+helm.sh/chart: {{ include "villas.chart" . }}
+{{ include "villas.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "villas.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "villas.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "villas.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+ {{ default (include "villas.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+ {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
diff --git a/chart/villas/templates/deployment.yaml b/chart/villas/templates/deployment.yaml
new file mode 100644
index 0000000..bbc154b
--- /dev/null
+++ b/chart/villas/templates/deployment.yaml
@@ -0,0 +1,55 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: {{ include "villas.fullname" . }}
+ labels:
+ {{- include "villas.labels" . | nindent 4 }}
+spec:
+ replicas: {{ .Values.replicaCount }}
+ selector:
+ matchLabels:
+ {{- include "villas.selectorLabels" . | nindent 6 }}
+ template:
+ metadata:
+ labels:
+ {{- include "villas.selectorLabels" . | nindent 8 }}
+ spec:
+ {{- with .Values.imagePullSecrets }}
+ imagePullSecrets:
+ {{- toYaml . | nindent 8 }}
+ {{- end }}
+ serviceAccountName: {{ include "villas.serviceAccountName" . }}
+ securityContext:
+ {{- toYaml .Values.podSecurityContext | nindent 8 }}
+ containers:
+ - name: {{ .Chart.Name }}
+ securityContext:
+ {{- toYaml .Values.securityContext | nindent 12 }}
+ image: "{{ .Values.image.repository }}:{{ .Chart.AppVersion }}"
+ 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 | 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 }}
diff --git a/chart/villas/templates/ingress.yaml b/chart/villas/templates/ingress.yaml
new file mode 100644
index 0000000..d66b2ac
--- /dev/null
+++ b/chart/villas/templates/ingress.yaml
@@ -0,0 +1,41 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "villas.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 "villas.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 }}
diff --git a/chart/villas/templates/service.yaml b/chart/villas/templates/service.yaml
new file mode 100644
index 0000000..99c47dd
--- /dev/null
+++ b/chart/villas/templates/service.yaml
@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+ name: {{ include "villas.fullname" . }}
+ labels:
+ {{- include "villas.labels" . | nindent 4 }}
+spec:
+ type: {{ .Values.service.type }}
+ ports:
+ - port: {{ .Values.service.port }}
+ targetPort: http
+ protocol: TCP
+ name: http
+ selector:
+ {{- include "villas.selectorLabels" . | nindent 4 }}
diff --git a/chart/villas/templates/serviceaccount.yaml b/chart/villas/templates/serviceaccount.yaml
new file mode 100644
index 0000000..ec91f9a
--- /dev/null
+++ b/chart/villas/templates/serviceaccount.yaml
@@ -0,0 +1,8 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+ name: {{ include "villas.serviceAccountName" . }}
+ labels:
+{{ include "villas.labels" . | nindent 4 }}
+{{- end -}}
diff --git a/chart/villas/templates/tests/test-connection.yaml b/chart/villas/templates/tests/test-connection.yaml
new file mode 100644
index 0000000..39abe5d
--- /dev/null
+++ b/chart/villas/templates/tests/test-connection.yaml
@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+ name: "{{ include "villas.fullname" . }}-test-connection"
+ labels:
+{{ include "villas.labels" . | nindent 4 }}
+ annotations:
+ "helm.sh/hook": test-success
+spec:
+ containers:
+ - name: wget
+ image: busybox
+ command: ['wget']
+ args: ['{{ include "villas.fullname" . }}:{{ .Values.service.port }}']
+ restartPolicy: Never
diff --git a/chart/villas/values.yaml b/chart/villas/values.yaml
new file mode 100644
index 0000000..7c91737
--- /dev/null
+++ b/chart/villas/values.yaml
@@ -0,0 +1,66 @@
+# Default values for villas.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+ repository: nginx
+ pullPolicy: IfNotPresent
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+ # Specifies whether a service account should be created
+ create: true
+ # The name of the service account to use.
+ # If not set and create is true, a name is generated using the fullname template
+ name:
+
+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: 100m
+ # memory: 128Mi
+ # requests:
+ # cpu: 100m
+ # memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
--
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