K8s helm 建立自定義Chart

# 刪除以前建立的 chart
helm list
helm delete --purge redis1

# 建立自定義 chart myapp
cd ~/helm
helm create myapp

cd myapp/

# 修改 Chart.yaml
cat Chart.yaml

apiVersion: v1
appVersion: "1.0"
description: A Helm chart for Kubernetes myapp chart
name: myapp
version: 0.0.1
maintainer:
- name: klvchen
  email: klvchen@126.com
  url: http://www.klvchen.com


# 修改 values.yaml
cat values.yaml 

# Default values for myapp.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.

replicaCount: 2

image:
  repository: ikubernetes/myapp
  tag: v1
  pullPolicy: IfNotPresent

service:
  type: ClusterIP
  port: 80
  targetPort: 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: {}

# 測試打包
cd ..
helm lint ./myapp
helm package myapp/

# 建立代理，注意這裏須要在 myapp-0.0.1.tgz  同級上執行，這裏會啓動一個web服務，端口爲 8879
helm serve

# 新開一個終端，安裝
helm install --name myapp1 local/myapp

# 測試，訪問 ClusterIP
curl 10.102.91.53
#運行結果，正常：
Hello MyApp | Version: v1 | <a href="hostname.html">Pod Name</a>

# 查看 myapp1 的狀態
helm status myapp1