/**
* Adds a new server to the system.
* @param array $data An array of data descriptors for creating the server. These should align to the columns in the database.
* @return integer
*/
public function create(array $data)
{
// Validate Fields
$validator = Validator::make($data, ['owner' => 'required|email|exists:users,email', 'node' => 'required|numeric|min:1|exists:nodes,id', 'name' => 'required|regex:/^([\\w -]{4,35})$/', 'memory' => 'required|numeric|min:0', 'swap' => 'required|numeric|min:-1', 'io' => 'required|numeric|min:10|max:1000', 'cpu' => 'required|numeric|min:0', 'disk' => 'required|numeric|min:0', 'allocation' => 'numeric|exists:allocations,id|required_without:ip,port', 'ip' => 'required_without:allocation|ip', 'port' => 'required_without:allocation|numeric|min:1|max:65535', 'service' => 'required|numeric|min:1|exists:services,id', 'option' => 'required|numeric|min:1|exists:service_options,id', 'startup' => 'string', 'custom_image_name' => 'required_if:use_custom_image,on']);
// Run validator, throw catchable and displayable exception if it fails.
// Exception includes a JSON result of failed validation rules.
if ($validator->fails()) {
throw new DisplayValidationException($validator->errors());
}
// Get the User ID; user exists since we passed the 'exists:users,email' part of the validation
$user = Models\User::select('id')->where('email', $data['owner'])->first();
// Get Node Information
$node = Models\Node::getByID($data['node']);
// Verify IP & Port are a.) free and b.) assigned to the node.
// We know the node exists because of 'exists:nodes,id' in the validation
if (!isset($data['allocation'])) {
$allocation = Models\Allocation::where('ip', $data['ip'])->where('port', $data['port'])->where('node', $data['node'])->whereNull('assigned_to')->first();
} else {
$allocation = Models\Allocation::where('id', $data['allocation'])->where('node', $data['node'])->whereNull('assigned_to')->first();
}
// Something failed in the query, either that combo doesn't exist, or it is in use.
if (!$allocation) {
throw new DisplayException('The selected IP/Port combination or Allocation ID is either already in use, or unavaliable for this node.');
}
// Validate those Service Option Variables
// We know the service and option exists because of the validation.
// We need to verify that the option exists for the service, and then check for
// any required variable fields. (fields are labeled env_<env_variable>)
$option = Models\ServiceOptions::where('id', $data['option'])->where('parent_service', $data['service'])->first();
if (!$option) {
throw new DisplayException('The requested service option does not exist for the specified service.');
}
// Load up the Service Information
$service = Models\Service::find($option->parent_service);
// Check those Variables
$variables = Models\ServiceVariables::where('option_id', $data['option'])->get();
$variableList = [];
if ($variables) {
foreach ($variables as $variable) {
// Is the variable required?
if (!$data['env_' . $variable->env_variable]) {
if ($variable->required === 1) {
throw new DisplayException('A required service option variable field (env_' . $variable->env_variable . ') was missing from the request.');
}
$variableList = array_merge($variableList, [['id' => $variable->id, 'env' => $variable->env_variable, 'val' => $variable->default_value]]);
continue;
}
// Check aganist Regex Pattern
if (!is_null($variable->regex) && !preg_match($variable->regex, $data['env_' . $variable->env_variable])) {
throw new DisplayException('Failed to validate service option variable field (env_' . $variable->env_variable . ') aganist regex (' . $variable->regex . ').');
}
$variableList = array_merge($variableList, [['id' => $variable->id, 'env' => $variable->env_variable, 'val' => $data['env_' . $variable->env_variable]]]);
continue;
}
}
// Check Overallocation
if (is_numeric($node->memory_overallocate) || is_numeric($node->disk_overallocate)) {
$totals = Models\Server::select(DB::raw('SUM(memory) as memory, SUM(disk) as disk'))->where('node', $node->id)->first();
// Check memory limits
if (is_numeric($node->memory_overallocate)) {
$newMemory = $totals->memory + $data['memory'];
$memoryLimit = $node->memory * (1 + $node->memory_overallocate / 100);
if ($newMemory > $memoryLimit) {
throw new DisplayException('The amount of memory allocated to this server would put the node over its allocation limits. This node is allowed ' . ($node->memory_overallocate + 100) . '% of its assigned ' . $node->memory . 'Mb of memory (' . $memoryLimit . 'Mb) of which ' . $totals->memory / $node->memory * 100 . '% (' . $totals->memory . 'Mb) is in use already. By allocating this server the node would be at ' . $newMemory / $node->memory * 100 . '% (' . $newMemory . 'Mb) usage.');
}
}
// Check Disk Limits
if (is_numeric($node->disk_overallocate)) {
$newDisk = $totals->disk + $data['disk'];
$diskLimit = $node->disk * (1 + $node->disk_overallocate / 100);
if ($newDisk > $diskLimit) {
throw new DisplayException('The amount of disk allocated to this server would put the node over its allocation limits. This node is allowed ' . ($node->disk_overallocate + 100) . '% of its assigned ' . $node->disk . 'Mb of disk (' . $diskLimit . 'Mb) of which ' . $totals->disk / $node->disk * 100 . '% (' . $totals->disk . 'Mb) is in use already. By allocating this server the node would be at ' . $newDisk / $node->disk * 100 . '% (' . $newDisk . 'Mb) usage.');
}
}
}
DB::beginTransaction();
try {
$uuid = new UuidService();
// Add Server to the Database
$server = new Models\Server();
$generatedUuid = $uuid->generate('servers', 'uuid');
$server->fill(['uuid' => $generatedUuid, 'uuidShort' => $uuid->generateShort('servers', 'uuidShort', $generatedUuid), 'node' => $data['node'], 'name' => $data['name'], 'suspended' => 0, 'owner' => $user->id, 'memory' => $data['memory'], 'swap' => $data['swap'], 'disk' => $data['disk'], 'io' => $data['io'], 'cpu' => $data['cpu'], 'oom_disabled' => isset($data['oom_disabled']) ? true : false, 'allocation' => $allocation->id, 'service' => $data['service'], 'option' => $data['option'], 'startup' => $data['startup'], 'daemonSecret' => $uuid->generate('servers', 'daemonSecret'), 'username' => $this->generateSFTPUsername($data['name'])]);
$server->save();
// Mark Allocation in Use
$allocation->assigned_to = $server->id;
$allocation->save();
// Add Variables
$environmentVariables = [];
$environmentVariables = array_merge($environmentVariables, ['STARTUP' => $data['startup']]);
foreach ($variableList as $item) {
$environmentVariables = array_merge($environmentVariables, [$item['env'] => $item['val']]);
Models\ServerVariables::create(['server_id' => $server->id, 'variable_id' => $item['id'], 'variable_value' => $item['val']]);
}
$client = Models\Node::guzzleRequest($node->id);
$client->request('POST', '/servers', ['headers' => ['X-Access-Token' => $node->daemonSecret], 'json' => ['uuid' => (string) $server->uuid, 'user' => $server->username, 'build' => ['default' => ['ip' => $allocation->ip, 'port' => (int) $allocation->port], 'ports' => [(string) $allocation->ip => [(int) $allocation->port]], 'env' => $environmentVariables, 'memory' => (int) $server->memory, 'swap' => (int) $server->swap, 'io' => (int) $server->io, 'cpu' => (int) $server->cpu, 'disk' => (int) $server->disk, 'image' => isset($data['custom_image_name']) ? $data['custom_image_name'] : $option->docker_image], 'service' => ['type' => $service->file, 'option' => $option->tag], 'keys' => [(string) $server->daemonSecret => $this->daemonPermissions], 'rebuild' => false]]);
DB::commit();
return $server->id;
} catch (\GuzzleHttp\Exception\TransferException $ex) {
DB::rollBack();
throw new DisplayException('There was an error while attempting to connect to the daemon to add this server.', $ex);
} catch (\Exception $ex) {
DB::rollBack();
Log:
error($ex);
throw $ex;
}
}