go语言中的template使用示例详解

import (
    "os"
    "text/template"
)

type Config struct {
    Name      string
    Version   string
    Replicas  int
}

const tpl = `
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Name }}-deployment
spec:
  replicas: {{ .Replicas }}
  template:
    metadata:
      labels:
        app: {{ .Name }}
    spec:
      containers:
      - name: {{ .Name }}
        image: "{{ .Name }}:{{ .Version }}"
        ports:
        - containerPort: 8080
`

package main
import (
	"html/template"
	"os"
)
const tpl = `
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Name }}-deployment
spec:
  replicas: {{ .Replicas }}
  template:
    metadata:
      labels:
        app: {{ .Name }}
    spec:
      containers:
      - name: {{ .Name }}
        image: "{{ .Name }}:{{ .Version }}"
        ports:
        - containerPort: 8080
`
type Deploy struct {
	Name     string
	Replicas int
	Version  string
}
func main() {
	tmpl, err := template.New("greeting").Parse(tpl)
	if err != nil {
		panic(err)
	}
	data := Deploy{Name: "gindemo", Version: "v1"}
	// 执行模板，将数据填充到模板中并输出到标准输出
	err = tmpl.Execute(os.Stdout, data)
	if err != nil {
		panic(err)
	}
}