Create MySQL certificates

create_certs_for_mysql.sh

#!/bin/bash
# https://dev.mysql.com/doc/refman/5.7/en/creating-ssl-files-using-openssl.html

# Create clean environment
rm -rf newcerts
mkdir newcerts && cd newcerts

# Create CA certificate
# Use default values for everything except common name
openssl genrsa 2048 > ca-key.pem
openssl req -new -x509 -nodes -days 3600 -key ca-key.pem -out ca.pem

# Create server certificate, remove passphrase, and sign it
# server-cert.pem = public key, server-key.pem = private key
# Use default values for everything except common name and use a different CN from CA
openssl req -newkey rsa:2048 -days 3600 -nodes -keyout server-key.pem -out server-req.pem
openssl rsa -in server-key.pem -out server-key.pem
openssl x509 -req -in server-req.pem -days 3600 -CA ca.pem -CAkey ca-key.pem -set_serial 01 -out server-cert.pem

# Create client certificate, remove passphrase, and sign it
# client-cert.pem = public key, client-key.pem = private key
# Use default values for everything except common name and use a different CN from CA and server
openssl req -newkey rsa:2048 -days 3600 -nodes -keyout client-key.pem -out client-req.pem
openssl rsa -in client-key.pem -out client-key.pem
openssl x509 -req -in client-req.pem -days 3600 -CA ca.pem -CAkey ca-key.pem -set_serial 01 -out client-cert.pem