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92 lines
3.2 KiB
Markdown
92 lines
3.2 KiB
Markdown
# Template Helm Chart
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This helm chart is a library chart that does most of the heavy
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lifting for your application chart.
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## Usage
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1. Copy the values into your own application chart.
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2. In your application chart templates folder create the following
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files. This allows you to use the values to configure most things and,
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more importantly, allows the users of your chart to overwrite
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things. Furthermore, that way you can benefit from improvements
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in the templates of this library chart by simply updating the
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version under dependencies in your chart.
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deployment.yaml
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```yaml
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{{- include "template.deployment" . -}}
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```
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hpa.yaml
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```yaml
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{{- include "template.hpa" . -}}
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```
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ingress.yaml
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```yaml
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{{- include "template.ingress" . -}}
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```
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NOTES.txt
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```text
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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 $host := .Values.ingress.hosts }}
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{{- range .paths }}
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http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
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{{- end }}
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{{- end }}
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{{- else if contains "NodePort" .Values.service.type }}
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export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "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:$NODE_PORT
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{{- else if contains "LoadBalancer" .Values.service.type }}
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NOTE: It may take a few minutes for the LoadBalancer IP to be available.
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You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "template.fullname" . }}'
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export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "template.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
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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 --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "template.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
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export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
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echo "Visit http://127.0.0.1:8080 to use your application"
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kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
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{{- end }}
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```
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secret.yaml:
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If you want to use external secrets, you MUST NOT include the secret
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template but implement it yourself.
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```yaml
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{{- include "template.secret" . -}}
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```
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service.yaml
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```yaml
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{{- include "template.service" . -}}
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```
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serviceaccount.yaml
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```yaml
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{{- include "template.serviceAccount" . -}}
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```
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tests/test-connection.yaml
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```yaml
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apiVersion: v1
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kind: Pod
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metadata:
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name: "{{ include "template.fullname" . }}-test-connection"
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labels:
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{{- include "template.labels" . | nindent 4 }}
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annotations:
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"helm.sh/hook": test
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spec:
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containers:
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- name: wget
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image: busybox
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command: ['wget']
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args: ['{{ include "template.fullname" . }}:{{ .Values.service.port }}']
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restartPolicy: Never
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```
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