Helm Chart 구조 상세 분석

apiVersion: v2
name: my-chart
description: A Helm chart for Kubernetes
type: application
version: 1.0.0
appVersion: 1.16.0

replicaCount: 2

image:
  repository: nginx
  tag: latest
  pullPolicy: IfNotPresent

service:
  type: ClusterIP
  port: 80

{{- define "my-chart.fullname" -}}
{{ .Release.Name }}-{{ .Chart.Name }}
{{- end -}}

metadata:
  name: {{ include "my-chart.fullname" . }}

apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "my-chart.fullname" . }}
spec:
  replicas: {{ .Values.replicaCount }}
  selector:
    matchLabels:
      app: {{ .Release.Name }}
  template:
    metadata:
      labels:
        app: {{ .Release.Name }}
    spec:
      containers:
        - name: nginx
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
          ports:
            - containerPort: {{ .Values.service.port }}

apiVersion: v1
kind: Service
metadata:
  name: {{ include "my-chart.fullname" . }}
spec:
  type: {{ .Values.service.type }}
  ports:
    - port: {{ .Values.service.port }}
      targetPort: {{ .Values.service.port }}
  selector:
    app: {{ .Release.Name }}

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: {{ include "my-chart.fullname" . }}
spec:
  rules:
    - host: example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: {{ include "my-chart.fullname" . }}
                port:
                  number: {{ .Values.service.port }}

apiVersion: v1
kind: ConfigMap
metadata:
  name: {{ include "my-chart.fullname" . }}-config
data:
  config.json: |
    {
      "env": "production"
    }

apiVersion: v1
kind: Secret
metadata:
  name: {{ include "my-chart.fullname" . }}-secret
type: Opaque
data:
  password: {{ "my-password" | b64enc }}

charts/
├── postgresql-10.3.11.tgz