SSH authentication
Currently, only public key authentication is supported for SSH. By default, the plugin reads the private key from ~/.ssh/id_rsa.
If it's required to use a private key file from another location, you have two opportunities to achieve this:
Add server section to your Maven settings
This is the preferred way. Firstly, add a server section to your Maven settings like this (see https://maven.apache.org/settings.html#Servers for further information):
<settings>
	<servers>
		<server>
			<id>my-server</id>
			<privateKey>/path/to/your/private_key</privateKey>
			<passphrase>optional_passphrase</passphrase>
		</server>
	</servers>
</settings>
If your key is password protected, specify the password within element passphrase. Tip: do not confuse this with element password.
Secondly, specify the serverId in the plugin configuration
<plugin>
	...
	<configuration>
		<serverId>my-server</serverId>
	</configuration>
</plugin>
Specify private key and optional passphrase in your POM
This is the insecure way to specify your custom private key. Add following properties to your plugin configuration:
<plugin>
	...
	<configuration>
		<privateKey>/path/to/your/private_key</privateKey>
		<passphrase>optional_passphrase</passphrase> <!-- This is optional -->
	</configuration>
</plugin>
Note: POM configuration has precedence over Maven settings.
Custom known_hosts
Per default, the plugin uses ~/.ssh/known_hosts. You can override this with following property in
your plugin configuration:
<plugin>
	...
	<configuration>
		<knownHosts>/path/to/your/known_hosts</knownHosts>
	</configuration>
</plugin>
Note: Maven settings related to known_hosts will not be considered by the plugin.
