构建helm chart应用

• 使用helm命令创建基础目录

helm create t2cp

[root@node04 ~]# tree t2cp
t2cp
├── charts
├── Chart.yaml
├── templates
│   ├── deployment.yaml
│   ├── _helpers.tpl
│   ├── ingress.yaml
│   ├── NOTES.txt
│   ├── service.yaml
│   └── tests
│       └── test-connection.yaml
└── values.yaml

• 编辑Chart.yaml 用于描述应用，包括名字，描述信息以及版本

apiVersion: v1
appVersion: "1.0"
description: A Helm chart for Kubernetes
name: t2cp
version: 11

• 编辑values.yaml设置启动容器的相关参数

cat values.yaml |grep -v "#"|grep -v ^$
replicaCount: 1
image:
  repository: t2cp/t2cp-dev
  tag: 11
  pullPolicy: IfNotPresent
nameOverride: ""
fullnameOverride: ""
service:
  type: ClusterIP
  port: 9010
ingress:
  enabled: false
  annotations: {}
  paths: []
  hosts:
    - t2cp.local
  tls: []
resources: {}
nodeSelector: {}
tolerations: []
affinity: {}

• 进入t2cp目录校验helm chart应用

helm lint
==> Linting .
[INFO] Chart.yaml: icon is recommended

1 chart(s) linted, no failures

• 对t2cp应用打包

helm package t2cp --debug
Successfully packaged chart and saved it to: /root/t2cp-11.tgz

• 上传到harbor私有仓库

helm repo list
NAME    URL
stable  https://kubernetes-charts.storage.googleapis.com
local   http://127.0.0.1:8879/charts
bitnami https://charts.bitnami.com/bitnami
myrepo  https://www.harbor.mobi/chartrepo/myrepo 

helm push /usr/t2cp-0.1.1.tgz myrepo

# 或者在第五步的时候不打包应用，直接上传目录
helm push t2cp myrepo

# 需要配置自签名证书和账号密码的操作
helm push --ca-file /usr/local/harbor/cert/ca.crt --cert-file /usr/local/harbor/cert/www.harbor.mobi.cert --key-file /usr/local/harbor/cert/www.harbor.mobi.key --username=admin --password=Harbor12345 t2cp-0.1.1.tgz myrepo