sudo nano $HOME/.profile
# Add the following two lines at the end of the file
GOPATH=$HOME/go
PATH=$GOPATH/bin:$PATH
# Save the file and exit the editor
source $HOME/.profile
# Now you should be able to see your variables like this:
echo $GOPATH
/home/[your_username]/go
echo $PATH
/home/[your_username]/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
Recommended requirement: Increase 'number of open files' limit
sudo nano /etc/security/limits.conf
# Before the end of the file, add:
[your_username] soft nofile 4096
# Then reboot the instance for it to take effect and check with:
ulimit -Sn