DevOps in Go — Template Module Introduction

What is template Module

The template package (https://pkg.go.dev/text/template) in Go provides data-driven templates for generating textual output. This package, along with the related html/template package, are powerful tools for generating any kind of text in a flexible, dynamic manner, from HTML or JSON files to configuration files or source code.

The template package offers two key types: Template and FuncMap.

• Template: The Template type represents a parsed template. It can be created with the template.New function and then parsed from a string or file.
• FuncMap: The FuncMap type is a map of functions that can be used in a template. This allows you to pass custom functions to your template and use them when generating output.

Here is a simple example of how you can use the template package:

package main

import (
        "os"
        "text/template"
)

type Person struct {
        Name string
        Age  int
}

func main() {
        t := template.New("person template")

        t, _ = t.Parse("Name: {{.Name}}, Age: {{.Age}}\n")
        p := Person{Name: "John Smith", Age: 30}
        t.Execute(os.Stdout, p)
}

In this example, we define a new template with a placeholder for name and age. We then…