Configuring TLS between a Router and a Message Processor

By default, TLS between the Router and Message Processor is disabled.

To enable TLS encryption between a Router and a Message Processor:

Ensure that port 8082 on the Message Processor is accessible by the Router.
Generate the keystore JKS file containing your TLS certification and private key. For more, see Configuring TLS/SSL for Edge On Premises.
Copy the keystore JKS file to a directory on the Message Processor server, such as /opt/apigee/customer/application.

Change permissions and ownership of the JKS file:

chown apigee:apigee /opt/apigee/customer/application/keystore.jks
chmod 600 /opt/apigee/customer/application/keystore.jks

Where keystore.jks is the name of your keystore file.

Edit the /opt/apigee/customer/application/message-processor.properties file. If the file does not exist, create it.

Set the following properties in the message-processor.properties file:

conf_message-processor-communication_local.http.ssl=true
conf/message-processor-communication.properties+local.http.port=8443
conf/message-processor-communication.properties+local.http.ssl.keystore.type=jks
conf/message-processor-communication.properties+local.http.ssl.keystore.path=/opt/apigee/customer/application/keystore.jks
conf/message-processor-communication.properties+local.http.ssl.keyalias=apigee-devtest
# Enter the obfuscated keystore password below.
conf/message-processor-communication.properties+local.http.ssl.keystore.password=OBF:obsPword

Where keystore.jks is your keystore file, and obsPword is your obfuscated keystore and keyalias password. See Configuring TLS/SSL for Edge On Premises for information on generating an obfuscated password.

Ensure that the message-processor.properties file is owned by the 'apigee' user:
```
chown apigee:apigee /opt/apigee/customer/application/message-processor.properties
```

Stop the Message Processors and Routers:

/opt/apigee/apigee-service/bin/apigee-service edge-message-processor stop
/opt/apigee/apigee-service/bin/apigee-service edge-router stop

On the Router, delete any files in the /opt/nginx/conf.d directory:
```
rm -f /opt/nginx/conf.d/*
```

Start the Message Processors and Routers:

/opt/apigee/apigee-service/bin/apigee-service edge-message-processor start
/opt/apigee/apigee-service/bin/apigee-service edge-router start

Repeat this process for each Message Processor.

After TLS is enabled between the Router and Message Processor, the Message Processor log file contains this INFO message:

MessageProcessorHttpSkeletonFactory.configureSSL() : Instantiating Keystore of type: jks

This INFO statement confirms that TLS is working between the Router and Message Processor.

The following table lists all of the available properties in message-processor.properties:

Properties	Description
conf_message-processor-communication_local. http.host=`localhost_or_IP_address`	Optional. Hostname to listen on for router connections. This overrides the host name configured at registration.
conf/message-processor-communication. properties+local.http.port=8998	Optional. Port to listen on for router connections. Default is 8998.
conf_message-processor-communication_local. http.ssl=[ false \| true ]	Set this to `true` to enable TLS/SSL. Default is `false`. When TLS/SSL is enabled, you must set `local.http.ssl.keystore.path` and `local.http.ssl.keyalias`.
conf/message-processor-communication. properties+local.http.ssl.keystore.path=	Local file system path to the keystore (JKS or PKCS12). Mandatory when `local.http.ssl=true`.
conf/message-processor-communication. properties+local.http.ssl.keyalias=	Key alias from the keystore to be used for TLS/SSL connections. Mandatory when `local.http.ssl=true`.
conf/message-processor-communication. properties+local.http.ssl.keyalias.password=	Password used for encrypting the key inside the keystore. Use an obfuscated password in the following format: OBF:`obsPword`
conf/message-processor-communication. properties+local.http.ssl.keystore.type=jks	Keystore type. Only JKS and PKCS12 are currently supported. Default is JKS.
conf/message-processor-communication. properties+local.http.ssl.keystore.password=	Optional. Obfuscated password for the keystore. Use an obfuscated password in the following format: OBF:`obsPword`
conf_message-processor-communication_local. http.ssl.ciphers=`cipher1,cipher2`	Optional. When configured, only the ciphers listed are allowed. If omitted, use all ciphers supported by the JDK.