Currently, I am creating an app that allows you to post images on rails.
I'm thinking of using aws to install carrierwave and fog-aws gems and deploy them on heroku.


I'm thinking of deploying to github and heroku like the above article, but I wrote the access key and secret key of s3 as in the article, but I was worried whether it was safe in terms of security, so I asked Thank you.
Thanks for your professor.