Check out the Securing Ruby Applications with mTLS article to learn more about this repo's contents, as well as deeper insights on troubleshooting.

• Medium: https://medium.com/@jrothrock/securing-ruby-applications-with-mtls-bc7a7d836038
• Dev.to: https://dev.to/scoutapm/securing-ruby-applications-with-mtls-1gen

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1. chmod +x create_certs.sh

2. ./create_certs.sh

3. docker build -t mtls .

4. docker run -p 443:443 -it mtls

5. In a separate terminal window: curl https://localhost:443/ --cert ./client/client.crt --key ./client/client.key --cacert ./ca/ca.crt

6. (Or) use the combined PEM file curl https://localhost:443/ --cert ./client/combined.pem --cacert ./ca/ca.crt

7. (Or) run the client.rb script: ruby client.rb

This shouldn't be needed for the above, but is useful for looking at the handshake:

1. Using cURL with the -vvv flag: curl -vvv https://localhost:443/ --cert ./client/combined.pem --cacert ./ca/ca.crt

2. Using s_client: openssl s_client -connect localhost:443 -key ./client/combined.pem -CAfile ./ca/ca.crt