/**
	 * @param  $formData
	 * @param string $entryPoint
	 * @return bool
	 */
	function tryReleaseSubmit( $formData, $entryPoint = 'internal' ) {
		$ip = $formData['ip'];
		#TODO: Instead of throwing an error when host exist or the IP
		# is associated, remove all host entries and disassociate the IP
		# then release the address
		$outputPage = $this->getOutput();
		$hosts = OpenStackNovaHost::getHostsByIP( $ip );
		if ( $hosts ) {
			$outputPage->addWikiMsg( 'openstackmanager-cannotreleaseaddress', $ip );
			return true;
		}
		$address = $this->adminNova->getAddress( $ip );
		if ( $address->getInstanceId() ) {
			$outputPage->addWikiMsg( 'openstackmanager-cannotreleaseaddress', $ip );
			return true;
		}
		$success = $this->userNova->releaseAddress( $ip );
		if ( $success ) {
			$outputPage->addWikiMsg( 'openstackmanager-releasedaddress', $ip );
		} else {
			$outputPage->addWikiMsg( 'openstackmanager-cannotreleaseaddress', $ip );
		}

		$out = '<br />';
		$out .= Linker::link( $this->getTitle(), wfMsgHtml( 'openstackmanager-backaddresslist' ) );
		$outputPage->addHTML( $out );

		return true;
	}