Bamboo server and client certificates

Olaf Trygve Ber

I want to add an extra layer of security to the Bamboo server, and only allow connect on the broker URL (jms/activemq) from agents that have valid client certificates (X.509). All my https-traffic is terminated by proxy, where client certificates are required. I set the Bamboo broker URL from tcp: to ssl:.

How do I make the Bamboo server require a trusted client certificate from the agents, and how do I make the agents use their client certificate?

Olaf Trygve Ber

Digging in to the documentation of Apache activemq[1] i tested adding the parameter needClientAuth in bamboo.cfg.xml:

<property name="bamboo.jms.broker.uri">ssl://0.0.0.0:54663?wireFormat.maxInactivityDuration=300000&needClientAuth=true</property>

I tested connecting with openssl s_client -connect.  Without the needClientAuth set the connection is accepted.  When i set it to to true the connection is rejected without a valid client certificate:

ERROR [ActiveMQ BrokerService[bamboo] Task-2] [TransportConnector] Could not accept connection from tcp://127.0.0.1:46419: javax.net.ssl.SSLHandshakeException: null cert chain

 

However, there is the problem of tuning the trust by setting the trustStore.  In the activemq documentation it is shown how to set the SSLContext for the broker only, and not for the whole VM.  If you set the javax.net.ssl.trustStore to a very limited set of CAs (your private CA), the https-traffic to atlassian from the Bamboo server will fail.

 

1. http://activemq.apache.org/how-do-i-use-ssl.html