This has given me trouble more than once so here are my notes for future reference:

1. Download git (Go uses git to download files)

yum -y install git

2. Download Go: (Get the latest version from here: https://golang.org/dl/)

cd /tmp
curl -LO https://dl.google.com/go/go1.9.3.linux-amd64.tar.gz

3. Decompress it:

tar -xvf go1.9.3.linux-amd64.tar.gz

4. Move the files to a reasonable location:

mv go /usr/local

5. Create a directory where the downloaded Go apps will be installed:

mkdir /root/goapps

6. Set the environmental variables you need:

export GOROOT=/usr/local/go
export GOPATH=/root/goapps
export PATH=$PATH:$GOPATH/bin:$GOROOT/bin

7. Add them to your ~/.bashrc as well so that they persist across reboots:

echo export "GOPATH=/root/goapps" >> ~/.bashrc
echo export "export PATH=$PATH:$GOPATH/bin:$GOROOT/bin" >> ~/.bashrc

8. Test Go:

go version
go version go1.9.3 linux/amd64

9. Download and compile a sample tool ( cuchi):

go get github.com/michlabs/cuchi

10. Does it work and where is it installed?

cuchi -h
Usage of cuchi:
 -s run in server mode

which cuchi
/root/goapps/bin/cuchi