How to install tlmgr and texliveonfly in Amazon linux machine / CentOS?

I want to install full latex on my AWS environment which uses Amazon machine image. They provide only texlive-2012 which not upto date. With tlmgr and texliveonfly I can install the missing packages on the fly.
Can anyone tell me how to install tlmgr and texliveonfly on amazon machine image, which is similar to CentOs.

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