/**
* Uses Docker to deploy the given project to a live server
* @param \GitDeployer\Objects\Project $project The project to deploy
* @param string $gitpath The path to the checked-out project
* @param array $config The configuration options to pass to this deployer
* @return mixed
*/
public function deploy(\GitDeployer\Objects\Project $project, $gitpath, $config)
{
$useTunnel = false;
// -> Connect to the docker daemon on a tcp or unix socket
if (!isset($config['host']) || strlen($config['host']) < 1) {
$config['host'] = getenv('DOCKER_HOST');
}
if (strlen($config['host']) < 1) {
throw new \Exception('Neither the "host" parameter was specified in the .deployer file nor is the DOCKER_HOST environment variable set!');
}
if (stristr($config['host'], 'tcp://')) {
// Setting the docker host to tcp:// may enable usage of the SSH tunnel functionality
if (isset($config['ssh']) && is_array($config['ssh'])) {
if (isset($config['ssh']['tunnel']) && $config['ssh']['tunnel'] == true) {
$useProc = false;
$useTunnel = true;
parent::showMessage('DOCKER', 'Connecting to Docker daemon via SSH...', $this->output);
// Check if the ssh binary is executable, else bail out
// since we can't open a tunnel without it
if (!$this->commandExists('ssh')) {
throw new \Exception('SSH client not found: Please make sure the "ssh" command is available, and in your $PATH!');
} else {
if (!isset($config['ssh']['host']) || strlen($config['ssh']['host']) < 1) {
throw new \Exception('Please specify at least a SSH host in your .deployerfile to connect to!');
}
if (!isset($config['ssh']['user']) || strlen($config['ssh']['user']) < 1) {
$config['ssh']['user'] = "******";
}
$config['ssh']['port'] = isset($config['ssh']['port']) && strlen($config['ssh']['port']) > 0 ? $config['ssh']['port'] : 22;
if (!isset($config['ssh']['privatekey']) || strlen($config['ssh']['privatekey']) < 1) {
throw new \Exception('Please correctly specify your SSH private key in the .deployerfile!');
}
// -> Open tunnel via SSH command
$randport = rand(60000, 65000);
$remotedesc = str_replace('tcp://', '', $config['host']);
$cmdstring = 'ssh -N -i ' . escapeshellarg($config['ssh']['privatekey']) . ' -L ' . $randport . ':' . $remotedesc . ' -p ' . $config['ssh']['port'] . ' ' . $config['ssh']['user'] . '@' . $config['ssh']['host'];
if (isset($config['ssh']['password']) && strlen($config['ssh']['password']) > 1) {
if (!extension_loaded('expect')) {
throw new \Exception('Expect extension not found: Please make sure the PHP expect extension is available in your PHP installation!');
}
$stream = fopen('expect://' . $cmdstring, 'r');
$cases = array(array('Enter passphrase', PASSWORD));
ini_set("expect.timeout", 30);
switch (expect_expectl($stream, $cases)) {
case PASSWORD:
fwrite($stream, $config['ssh']['password'] . "\n");
// Wait for tunnel port to be available
while (true) {
$socket = @fsockopen('127.0.0.1', $randport, $errno, $errstr, 5);
if ($socket) {
fclose($socket);
break;
}
}
break;
default:
throw new \Exception('Unable to connect to the remote SSH host! Invalid string received: Expected passphrase prompt.');
}
} else {
$stream = proc_open('exec ' . $cmdstring, array(), $pipes);
$useProc = true;
// Wait for tunnel port to be available
while (true) {
$socket = @fsockopen('127.0.0.1', $randport, $errno, $errstr, 5);
if ($socket) {
fclose($socket);
break;
}
}
}
}
}
}
}
$client = new \Docker\DockerClient(array('remote_socket' => 'tcp://127.0.0.1:' . $randport, 'ssl' => isset($config['ssl']) && $config['ssl'] == true ? true : false));
$docker = new \Docker\Docker($client);
// -> Build the docker image if a Dockerfile is present
if (!file_exists($gitpath . '/Dockerfile')) {
throw new \Exception('No Dockerfile found - aborting build!');
}
parent::showMessage('DOCKER', 'Building image (no-cache)...', $this->output);
parent::showMessage('DOCKER', 'Uploading context...', $this->output);
$context = new \Docker\Context\Context($gitpath);
$imageManager = $docker->getImageManager();
$buildStream = $imageManager->build($context->toStream(), array('t' => 'git-deployer/' . $project->name()), \Docker\Manager\ContainerManager::FETCH_STREAM);
$buildStream->onFrame(function (\Docker\API\Model\BuildInfo $buildInfo) {
parent::showMessage('BUILD', $buildInfo->getStream(), $this->output);
});
$buildStream->wait();
// -> Stop and remove the old container with the same name, sicne we're going
// to replace the app here with the newly built container
parent::showMessage('DOCKER', 'Getting running containers...', $this->output);
$containersOnHost = $docker->getContainerManager()->findAll();
if (count($containersOnHost) > 0) {
// We check for a container with the same name as the one we are going to deploy
foreach ($containersOnHost as $key => $container) {
$containerFound = false;
// Search by name
foreach ($container->getNames() as $name) {
$cleanName = $this->cleanName($project->name());
preg_match('#\\/.*\\/(.*)#', $name, $matches);
if ($cleanName == $matches[1]) {
$containerFound = true;
}
}
// Search by image
if ($container->getImage() == 'git-deployer/' . $project->name()) {
$containerFound = true;
}
if ($containerFound) {
parent::showMessage('DOCKER', 'Stopping old container ' . $container->getId() . '...', $this->output);
$docker->getContainerManager()->stop($container->getId());
$docker->getContainerManager()->remove($container->getId());
}
}
}
// -> Start the container up if we have built sucessfully
parent::showMessage('DOCKER', 'Starting new container...', $this->output);
$hostConfig = new \Docker\API\Model\HostConfig();
$containerConfig = new \Docker\API\Model\ContainerConfig();
$containerConfig->setNames(array('git-deployer/' . $this->cleanName($project->name())));
$containerConfig->setImage('git-deployer/' . $project->name());
// Add environment from the config file, if any
$envArray = array();
if (isset($config['environment'])) {
foreach ($config['environment'] as $key => $value) {
$envArray[] = $key . '=' . $value;
}
}
$containerConfig->setEnv($envArray);
// Add exposed ports from the config file, if any
if (isset($config['ports']) && is_array($config['ports']) && count($config['ports']) > 0) {
$exposedPorts = new \ArrayObject();
$mapPorts = new \ArrayObject();
foreach ($config['ports'] as $portdesc) {
$portspec = $this->parsePortSpecification($portdesc);
// Exposed port
$exposedPort = $portspec['port'] . (strlen($portspec['protocol']) > 0 ? '/' . $portspec['protocol'] : '/tcp');
$exposedPorts[$exposedPort] = new \stdClass();
// Host port binding
$hostPortBinding = new \Docker\API\Model\PortBinding();
$mapPorts[$exposedPort] = array($hostPortBinding);
}
$containerConfig->setExposedPorts($exposedPorts);
$hostConfig->setPortBindings($mapPorts);
}
// Add restart policy
if (isset($config['restart']) && strlen($config['restart']) > 0) {
$policy = $this->parseRestartPolicy($config['restart']);
$restartPolicy = new \Docker\API\Model\RestartPolicy();
$restartPolicy->setName($policy['Name']);
if (isset($policy['MaximumRetryCount'])) {
$restartPolicy->setMaximumRetryCount($policy['MaximumRetryCount']);
}
$hostConfig->setRestartPolicy($restartPolicy);
}
// Add binds
if (isset($config['volumes']) && is_array($config['volumes']) && count($config['volumes']) > 0) {
$binds = new \ArrayObject();
foreach ($config['volumes'] as $volume) {
$binds[] = $volume;
}
$hostConfig->setBinds($binds);
}
$containerConfig->setHostConfig($hostConfig);
$containerCreateResult = $docker->getContainerManager()->create($containerConfig, array('name' => $this->cleanName($project->name())));
if ($containerCreateResult->getId()) {
$docker->getContainerManager()->start($containerCreateResult->getId());
}
// -> Clean up and close the SSH tunnel
if ($useTunnel) {
if ($useProc) {
proc_terminate($stream, 9);
proc_close($stream);
} else {
fclose($stream);
}
}
return array(true, 'No trace');
}
/**
*
* @param $zone
* @return [type] [description]
*/
protected function getZoneName(BaseDeployer $zone)
{
return $zone->getName();
}