How to install and deploy Golang on Centos

With the popularity of Golang language, more and more web applications and network services choose to use Golang for development. As an enterprise-level operating system, Centos is very suitable for running Golang applications in a production environment. This article will introduce how to install and deploy Golang on Centos.

1. Installing Golang

Before installing Golang, you need to confirm whether Golang is already installed on the Centos system. You can run the following command in the terminal to check:

go version

If Golang has been installed, the version number of Golang will be output. If it is not installed, you can use Yum to install it:

sudo yum install golang

After the installation is complete, run the go version command again to confirm whether Golang has been successfully installed.

2. Configuring Golang environment variables

In order for the Golang command to run normally in the terminal, the Golang executable file path needs to be added to the system environment variable. This can be configured with the following command:

sudo vi /etc/profile

In the open file, add the following at the end:

export PATH=$PATH:/usr/local/go/bin

Save the file and exit the editor. Then use the following command to make the environment variable configuration take effect:

source /etc/profile

3. Writing a Golang application

Before deploying a Golang application, you need to write a simple Hello World program. test. Create a file named helloworld.go and write the following code in it:

package main

import "fmt"

func main() {
    fmt.Println("Hello, World!")
}

After saving the file, run the following command in the terminal to compile the program:

go build helloworld.go

This command will generate a name Is the executable file of helloworld. Running the executable file in the terminal will output the "Hello, World!" message.

4. Deploying Golang applications

Deploying Golang applications requires first packaging the application into a binary file. You can use the command go build to package the application, and you can use the command go install to install the application.

go build -o myapp main.go

This command will generate an executable file named myapp in the current directory. Run this file to start the Golang application.

The above is the entire process of deploying Golang on Centos. If you have any questions, please leave a message to communicate.

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