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RabbitMQ with SSL Configuration in Docker

RabbitMQ and SSL made easy for tests.

Build Status License

This repository aims at building a RabbitMQ container with SSL enabled.
Generation of the server certificates, as well as server configuration, are performed during the image's build. A client certificate is generated when a container is created from this image.

It is recommended to mount a volume so that the client certificate can be reached from the host system. Client certificates are generated under the /home/client directory.

To build this image

cd tests && ./build.sh

The generated image contains SSL certificates for the server side.

To run this image

mkdir -p /tmp/docker-test \
	&& rm -rf /tmp/docker-test/* \
	&& docker run -d --rm -p 12000:5671 -v /tmp/docker-test:/home/client rabbitmq-with-ssl:latest

Here, we bind the port 5671 from the container on the 12000 port on the local host.
We also share a local directory with the container, to retrieve the client certificate. You can verify client certificates were generated with ls /tmp/docker-test. This directory contains a key store and a trust store, both in the PKCS12 format.

To stop the container

docker stop <container-id> will stop the container.
If you kept the --rm option, it will be deleted directly.

To run quick tests

cd tests && ./test.sh

To diagnose troubles

  • Verify the client certificates were correctly generated: ls -l /tmp/docker-test
  • Inspect the container: docker exec -ti <container-id> /bin/bash
  • Check the logs: docker logs <container-id>
  • Verify the SSL connection works: openssl s_client -connect 127.0.0.1:12000 -key /tmp/docker-test/key.pem
    This last command will result in Verify return code: 19 (self signed certificate in certificate chain), which is normal. We should specify the -CApath, which is inside the Docker container. This test is enough to verify SSL is enabled and the server is reachable from the host system.

Quick overview of the content

  • Dockerfile: the file with instructions to create a Docker image.
  • rabbitmq.config: the configuration file for RabbitMQ.
  • openssl.cnf: a configuration file used during certificates creation.
  • prepare-server.sh: a script during the generation of the image and that deals with server certificates.
  • generate-client-keys.sh: a script that is run by default when a container is created from this image. It deals with the generation of client certificates.