Yarn (Binary) Offline installation on Centos 7 - yarnpkg

Question

How do i install Yarn (binary) offline on Centos 7. The machine doesn't have internet. Apologise if the question has been asked before.
I couldn't find it anywhere. All Questions point to using Yarn in offline mode but not how to install it offline at the first place.

Answer 1

Finally, i managed to do it via tarball (Note this is Linux installation).
You can install Yarn by downloading a tarball and extracting it anywhere.
cd /opt
wget https://yarnpkg.com/latest.tar.gz
tar zvxf latest.tar.gz
Yarn is now in /opt/yarn-[version]/
the following steps will add Yarn to path variable and run it from anywhere.
Note: your profile may be in your .profile, .bash_profile, .bashrc, .zshrc, etc.
Add this to your profile:
export PATH="$PATH:/opt/yarn-[version]/bin"
(the path may vary depending on where you extracted Yarn to)
In the terminal, log in and log out for the changes to take effect
To have access to Yarn’s executables globally, you will need to set up the PATH environment variable in your terminal. To do this, add
export PATH="$PATH:`yarn global bin`"
to your profile.
Here is the link i found it

Answer 2

Although Yarn can work in offline mode, the packages must be downloaded and stored in the in an offline mirror. Refer to this article.
Your Centos machine will need to be connected to another machine that has access to the Internet. The most common solution is to set up a http/https proxy, then set up yarn to use the proxy
yarn config set proxy http://proxy.server.com:8080
yarn config set https-proxy http://proxy.server.com:8080