The EI Message Broker runtime provides support to send/receive messages via secured connections using the SSL/TLS protocol. The following instructions describe how to configure the broker server and JMS clients to communicate via encrypted connections using SSL.
Enabling SSL in the broker
To enable SSL inthe server side, change the following entries in the
<EI_HOME>/wso2/broker/conf/broker.xml file under the relevant transport:
The parameters in the above configuration are as follows.
|SSL Connection||This contains the basic configurations relating to the SSL connection. Setting the|
The location where the keystore used for securing SSL connections is stored. By default this is the default keystore(
Note that this should always be a keystore created for the super tenant. Find out more about setting up keystores for your broker.
|Password||The password ofthe keystore.|
Configuring JMS Clients to use SSL
SSL parameters are configured and sent to the broker as broker options in the
TCPConnectionURL defined by the client. You need to set the 'ssl=true' property in the url and specify the keystore and client trust store paths and passwords. Use the connectionurl format shown below to pass the SSL parameters:
Setting the 'ssl_cert_alias' property is not mandatory and can be used as an optional way to specify which certificate the broker should use if the trust store contains multiple entries.
Example: Consider that you have the Integrator runtime of WSO2 EI as the JMS client. Shown below is an example connectionurl using the default keystores and trust stores in the Integrator:
When you configure the Integrator runtime to communicate with the broker using SSL, the SSL url should be configured in the
jndi.properties file for the Integrator (stored in the
<EI_HOME>/conf directory). Go to this link for detailed instructions on how Integrator runtime works with the Message Broker runtime in WSO2 EI.
Configuring JMS Clients for Failover with SSL
For example, if you have configured a EI Message Broker cluster, you might need to configure failover. If those broker nodes have different certs in place, when configuring a failover connection url at the client side, you can individually specify a client trust store and a keystore for each broker in the broker list. Or else, you can import the certs of all brokers in the cluster to a single trust store with different cert aliases and differentiate the cert to use when failing over by the alias.