/**
* Maps a given server to a task.
*
* @param Stage $stage Stage instance
* @param AbstractTask $task Task instance
* @param Server $server Server instance
*
* @return null
*/
private function addServer(Stage $stage, AbstractTask $task, Server $server)
{
$stageName = $stage->getName();
$taskName = $task->getName();
if (!array_key_exists('servers', $this->mapping[$stageName]['tasks'][$taskName])) {
$this->mapping[$stageName]['tasks'][$taskName]['servers'] = array();
}
foreach ($this->mapping[$stageName]['tasks'][$taskName]['servers'] as $serverAdded) {
if ($serverAdded === $server) {
throw new \LogicException(sprintf("Can't add server '%s' to task '%s' twice.", $server->getName(), $task->getName()));
}
}
$this->mapping[$stageName]['tasks'][$taskName]['servers'][] = $server;
}
/**
* Creates a ssh session for a given server.
*
* @param Server $server
*
* @return Session
*/
public function createFromServer(Server $server)
{
$config = new Configuration($server->getHost(), $server->getPort());
switch (true) {
case $server->getUsername() && $server->getPassword():
$auth = new Password($server->getUsername(), $server->getPassword());
break;
case $server->getPrivateKey():
$auth = new PublicKeyFile($server->getUsername(), $server->getPublicKey(), $server->getPrivateKey(), $server->getKeyPhrase());
break;
default:
throw new \DomainException(sprintf('No authentication credentials given for server: %s', $server->getName()));
break;
}
$session = new Session($config, $auth);
return $session;
}
