Linux deployment golang

With the increasing development of Go language, more and more companies and programmers choose to use Go language for development. Linux systems are widely used as development and deployment environments, and deploying Go programs to Linux systems has become an inevitable task. This article will introduce how to deploy Go programs on Linux systems.

1. Install the Go language environment

The official Go language website provides binary release packages for Linux systems, which can be downloaded from the official website. The specific operations are as follows:

1. Open the official website https://golang.org/

2. Select “Download”

3. Select Linux on the “Downloads” page Version

4. Download the binary release file of the corresponding version

5. Unzip the downloaded file to the specified directory

6. Add the bin directory of the Go language to the environment variable

7. Use the go version command to verify whether the installation is successful

2. Write and build Go applications

To write Go code in a Linux environment, just follow Go’s Programming standards, you can use any text editor, such as Vim, Sublime, etc. After writing the code, you need to execute the go build command to build the Go program.

The go build command will automatically find the Go source code files in the current directory and then compile them into executable files. If there is only one source code file in the directory, the go build command will compile it into an executable file with the same name in the current directory.

For example:

$ cat main.go
package main

import "fmt"

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

$ go build

$ ./main
Hello, world!

If there are multiple Go source code files, you can use the parameters of the go build command to specify the files that need to be compiled. If you need to build an executable file under the Linux system, you can add parameters after the go build command:

$ go build -o myapp main.go other.go

In this way, the compiled executable file will be named myapp and can be executed directly on the Linux system .

3. Deploying Go applications

There are two main ways to deploy Go applications to Linux systems: uploading executable files through FTP or transferring them via Git/SVN/SFTP.

1. Upload the executable file through FTP

We can use the FTP client to upload the compiled executable file to the server directory. The reason for choosing FTP upload is that it is a convenient tool for transferring files and does not require other additional dependencies.

Taking FileZilla as an example, the steps to upload an executable file are as follows:

1. Open the FileZilla client

2. Connect to the server

3. Select The file you want to upload

4. Drag the file to the server directory

5. Wait for the upload to complete

2. Upload the executable file through Git/SVN/SFTP

Git/SVN/SFTP is an open source distributed version control system and a tool for file transfer. The steps to upload files through Git/SVN/SFTP are as follows:

1. Create a Git/SVN repository on the local machine and submit the executable file to the repository.

For example:

$ git init
$ git add .
$ git commit -m "Initial commit"

2. Install the Git/SVN client on the Linux system.

For example:

$ sudo apt-get install git

3. Use Git/SVN commands on Linux systems to clone files from the remote repository.

For example:

$ git clone https://github.com/username/repo.git

4. Running Go applications

There are many ways to run Go applications. The most common way is to use ./yourapp directly in the terminal. command to run the executable file.

For example:

$ ./myapp

If you need to let the program continue to run in the background, you can add an ampersand:

$ ./myapp &

If you need to let the program run automatically when the system starts, you can add Place the executable file in the init.d directory of the Linux system, and then configure the system's service manager to start the program.

For example:

1. Copy the executable file to the /etc/init.d directory

2. Open the /etc/rc.local file and add the following command :

/etc/init.d/myapp start

3. Run the following command to start the service:

$ sudo chkconfig --add myapp
$ sudo chkconfig myapp on

In this way, the program will run automatically when the system starts.

Summary

With the above 4 steps, we can easily deploy Go applications on Linux systems. First install the Go language environment, then write and build the Go program, and finally transfer the executable file to the Linux system and run it. In practice, these steps may involve some other details, but overall, this is a simple and effective process. I hope this article will be helpful to engineers who are learning the Go language or preparing to deploy Go applications on Linux systems.

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