heroku-buildpack-rsa-keys

Heroku buildpack to generate RSA public/private keys

Install

$ heroku buildpacks:add -a appname https://github.com/velizarn/heroku-buildpack-rsa-keys

How to use

Optional config variables:

• RSA_NUMBITS - The size of the private key to generate in bits. This must be the last option specified. The default is 1024 and values less than 512 are not allowed.
• RSA_PRIVATEKEYPATH - Path where to store private key file, default './private_key.pem'
• RSA_PUBLICKEYPATH - Path where to store public key file, default './public_key.pem'
• RSA_COMMAND_ENV - additional command to execute after RSA keys generation, if needed, e.g.

echo export RSA_PUBLIC_KEY_BASE_64=$(cat $RSA_PUBLICKEYPATH | base64 -w 0) >$BUILD_DIR/.profile.d/rsakeys.sh

Following command will set numbits value to 1024 and path to key files in app root directory:

$ heroku config:set -a appname RSA_NUMBITS=1024 RSA_PRIVATEKEYPATH=./private_key.pem RSA_PUBLICKEYPATH=./public_key.pem

Resources

• https://devcenter.heroku.com/articles/stack-packages
• https://cryptotools.net/rsagen
• https://ss64.com/bash/
• https://docs.openssl.org/3.4/man1/openssl-genrsa/
• https://docs.openssl.org/3.4/man1/openssl-rsa/

License

MIT