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DrydockLocalHostBlueprintImplementation.php
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Created
Wed, Jan 22, 04:04

DrydockLocalHostBlueprintImplementation.php
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<?php
final class DrydockLocalHostBlueprintImplementation
extends DrydockBlueprintImplementation {
public function isEnabled() {
return false;
}
public function getBlueprintName() {
return pht('Local Host');
}
public function getDescription() {
return pht(
'Allows Drydock to run on the local host.');
}
public function canAllocateMoreResources(array $pool) {
assert_instances_of($pool, 'DrydockResource');
// The localhost can be allocated only once.
foreach ($pool as $resource) {
if ($resource->getBlueprintClass() == $this->getBlueprintClass()) {
return false;
}
}
return true;
}
protected function executeAllocateResource(DrydockLease $lease) {
// TODO: Don't hard-code this.
$path = '/var/drydock/';
if (!Filesystem::pathExists($path)) {
throw new Exception(
"Path '{$path}' does not exist!");
}
Filesystem::assertIsDirectory($path);
Filesystem::assertWritable($path);
$resource = $this->newResourceTemplate('Host (localhost)');
$resource->setStatus(DrydockResourceStatus::STATUS_OPEN);
$resource->setAttribute('path', $path);
$resource->setAttribute('remote', 'false');
$resource->setAttribute('preallocated', 'false');
$resource->save();
return $resource;
}
protected function canAllocateLease(
DrydockResource $resource,
DrydockLease $lease) {
return false;
}
protected function shouldAllocateLease(
DrydockResource $resource,
DrydockLease $lease,
array $other_leases) {
return true;
}
protected function executeAcquireLease(
DrydockResource $resource,
DrydockLease $lease) {
$lease_id = $lease->getID();
$full_path = $resource->getAttribute('path').$lease_id.'/';
$cmd = $lease->getInterface('command');
$cmd->execx('mkdir %s', $full_path);
$lease->setAttribute('path', $full_path);
}
public function getType() {
return 'host';
}
public function getInterface(
DrydockResource $resource,
DrydockLease $lease,
$type) {
switch ($type) {
case 'command':
return new DrydockLocalCommandInterface();
}
throw new Exception("No interface of type '{$type}'.");
}
}

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