install golang ubuntu bionic

Installing Go on Ubuntu

Reviewed on 19 September 2023 • Published on 14 August 2018

compute
Instance
Go
Ubuntu-Bionic-Beaver

Go is an open-source programming language, initially developed by a team at Google and becoming increasingly popular for many applications. The project is backed by many contributors from the open-source community.

This tutorial will guide you through the download and installation of the Go programming language on a Ubuntu Bionic Beaver server. At the end of this guide, you will create your first Go application.

Security & Identity (IAM):

You may need certain IAM permissions to carry out some actions described on this page. This means:

you are the Owner of the Scaleway Organization in which the actions will be carried out, or
you are an IAM user of the Organization, with a policy granting you the necessary permission sets

Requirements:

You have an account and are logged into the Scaleway console
You have configured your SSH key
You have a server running on Ubuntu 18.04 (Bionic Beaver) or later
You have sudo privileges or access to the root user.

Installing Go

Connect to your Instance using SSH.
```
ssh root@your_server_ip
```
Update your APT package cache and upgrade the software already installed on the Instance to the latest release.
```
apt update && apt upgrade -y
```
Install the Go programming language from the apt repository:
```
apt install golang -y
```
Make sure Go is installed by running the following command:
```
go version
```
You should see an output like the following:
```
root@gopher:~# go version
go version go1.13.8 linux/amd64
```

Set the GOPATH for your environment:

echo "GOPATH=$HOME/golang" >> ~/.bashrc
echo "export GOPATH" >> ~/.bashrc
echo "PATH=\$PATH:\$GOPATH/bin # Add GOPATH/bin to PATH for scripting" >> ~/.bashrc
source ~/.bashrc

Creating a Hello World Go Application

Start by creating a workspace, where you will store the files of your project.
```
mkdir -p $HOME/golang/src/hello-world
```
Note:
Go uses a strict Workspace layout. You should follow the guidelines to make sure your application will work.
Open a text editor and create a file hello-world.go in the working directory. Then copy and paste the following content into it:
```
package main
import "fmt"
func main() {
    fmt.Printf("Hello world! This is my first Go program.\n")
}
```
Run the code directly in Go with the command go run:
```
go run hello-world.go
```
Compile the application if you want to have a program directly available as a binary to distribute it.
```
go install hello-world
```
Once the application is compiled, you can launch it by typing hello-world in your terminal.
```
bill@golang:~# hello-world
Hello world! This is my first Go program.
```
Use which to discover the location of the binary. It will return the file path:
```
bill@golang:~# which hello-world
/home/bill/golang/bin/hello-world
```

Creating a Go Web Application

Go provides the net/http package, which makes it very easy to create web applications:

Create a new workspace and add the following content to the main.go.

go
package main
import (
    "fmt"
    "net/http"
)
func main() {
    http.HandleFunc("/", WorldServer)
    http.ListenAndServe(":8080", nil)
}
func WorldServer(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hello, %s!", r.URL.Path[1:])
}

You now have a working Go development environment. If you want to learn more about writing code in Go, you can follow the interactive tutorial.