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@ -36,12 +36,37 @@ const (
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ChartsDir = "charts"
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// IgnorefileName is the name of the Helm ignore file.
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IgnorefileName = ".helmignore"
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// DeploymentName is the name of the example deployment file.
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DeploymentName = "deployment.yaml"
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// ServiceName is the name of the example service file.
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ServiceName = "service.yaml"
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// NotesName is the name of the example NOTES.txt file.
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NotesName = "NOTES.txt"
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// HelpersName is the name of the example NOTES.txt file.
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HelpersName = "_helpers.tpl"
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)
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const defaultValues = `# Default values for %s.
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# This is a YAML-formatted file.
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# Declare name/value pairs to be passed into your templates.
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# name: value
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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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service:
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name: nginx
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type: ClusterIP
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externalPort: 80
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internalPort: 80
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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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`
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const defaultIgnore = `# Patterns to ignore when building packages.
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@ -67,6 +92,89 @@ const defaultIgnore = `# Patterns to ignore when building packages.
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*.tmproj
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`
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const defaultDeployment = `apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: {{ template "fullname" . }}
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labels:
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chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
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spec:
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replicas: {{ .Values.replicaCount }}
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template:
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metadata:
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labels:
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app: {{ template "fullname" . }}
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spec:
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containers:
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- name: nginx
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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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- containerPort: {{ .Values.service.internalPort }}
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livenessProbe:
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httpGet:
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path: /
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port: 80
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readinessProbe:
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httpGet:
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path: /
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port: 80
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resources:
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{{ toYaml .Values.resources | indent 12 }}
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`
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const defaultService = `apiVersion: v1
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kind: Service
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metadata:
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name: {{ template "fullname" . }}
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labels:
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chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
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spec:
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type: {{ .Values.service.type }}
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ports:
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- port: {{ .Values.service.externalPort }}
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targetPort: {{ .Values.service.internalPort }}
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protocol: TCP
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name: {{ .Values.service.name }}
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selector:
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app: {{ template "fullname" . }}
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`
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const defaultNotes = `1. Get the application URL by running these commands:
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{{- if contains "NodePort" .Values.service.type }}
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export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "fullname" . }})
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export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
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echo http://$NODE_IP:$NODE_PORT/login
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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 "fullname" . }}'
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export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
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echo http://$SERVICE_IP:{{ .Values.Master.ServicePort }}
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{{- else if contains "ClusterIP" .Values.service.type }}
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export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "component={{ template "fullname" . }}-master" -o jsonpath="{.items[0].metadata.name}")
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echo http://127.0.0.1:{{ .Values.service.externalPort }}
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kubectl port-forward $POD_NAME {{ .Values.service.externalPort }}:{{ .Values.service.externalPort }}
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{{- end }}
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`
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const defaultHelpers = `{{/* 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 "name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 24 -}}
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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 24 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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*/}}
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{{- define "fullname" -}}
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{{- $name := default .Chart.Name .Values.nameOverride -}}
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{{- printf "%s-%s" .Release.Name $name | trunc 24 -}}
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{{- end -}}
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`
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// Create creates a new chart in a directory.
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//
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// Inside of dir, this will create a directory based on the name of
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@ -120,5 +228,26 @@ func Create(chartfile *chart.Metadata, dir string) (string, error) {
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return cdir, err
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}
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}
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return cdir, nil
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// Write out deployment.yaml
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val = []byte(defaultDeployment)
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if err := ioutil.WriteFile(filepath.Join(cdir, TemplatesDir, DeploymentName), val, 0644); err != nil {
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return cdir, err
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}
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// Write out service.yaml
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val = []byte(defaultService)
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if err := ioutil.WriteFile(filepath.Join(cdir, TemplatesDir, ServiceName), val, 0644); err != nil {
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return cdir, err
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}
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// Write out NOTES.txt
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val = []byte(defaultNotes)
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if err := ioutil.WriteFile(filepath.Join(cdir, TemplatesDir, NotesName), val, 0644); err != nil {
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return cdir, err
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}
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// Write out _helpers.tpl
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val = []byte(defaultHelpers)
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return cdir, ioutil.WriteFile(filepath.Join(cdir, TemplatesDir, HelpersName), val, 0644)
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}
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