function create($cu_id, $virtualization_type, $name, $mac, $additional_nics, $cpu, $memory, $disk, $timeout, $vncpassword, $source_image_id = null)
{
global $OPENQRM_SERVER_BASE_DIR;
global $OPENQRM_SERVER_IP_ADDRESS;
global $OPENQRM_EXEC_PORT;
global $RESOURCE_INFO_TABLE;
global $host_start_from_off_timeout;
global $RootDir;
$this->init($timeout);
global $event;
$vmware_mac_address_space = "00:50:56";
$vtype = new virtualization();
$vtype->get_instance_by_id($virtualization_type);
$virtualization_plugin_name = $vtype->get_plugin_name();
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "Trying to create new VM type {$virtualization_type} ({$virtualization_plugin_name}) {$mac}/{$cpu}/{$memory}/{$disk}", "", "", 0, 0, 0);
// here we need to find out if we have a virtualization host providing the type of VMs as requested
// find out the host virtualization type via the plugin name
$vhost_type = new virtualization();
$vhost_type->get_instance_by_type($virtualization_plugin_name);
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "Trying to find a virtualization host from type {$vhost_type->type} {$vhost_type->name}", "", "", 0, 0, 0);
// check if resource-pooling is enabled
$cp_conf = new cloudconfig();
$show_resource_pools = $cp_conf->get_value(25);
// resource_pools enabled ?
$vm_provision_delay = $cp_conf->get_value(40);
// delay provisioning of VMs ?
$vm_loadbalance_algorithm = $cp_conf->get_value(41);
// which LB to select ?
// for all in appliance list, find virtualization host appliances
$appliance_tmp = new appliance();
$appliance_id_list = $appliance_tmp->get_all_ids();
$active_appliance_list = array();
$active_appliance_resource_list = array();
foreach ($appliance_id_list as $id_arr) {
foreach ($id_arr as $id) {
$appliance = new appliance();
$appliance->get_instance_by_id($id);
// active ?
if ($appliance->stoptime == 0 || $appliance->resources == 0) {
if ($appliance->virtualization == $vhost_type->id) {
// we have found an active appliance from the right virtualization type
// Now we check that its resource is active and not in error
$cvm_resource = new resource();
$cvm_resource->get_instance_by_id($appliance->resources);
if (strcmp($cvm_resource->state, "active")) {
continue;
}
// here we check if there is still enough space
// to create the new VM -> max_vm setting per resource
$res_hostlimit = new cloudhostlimit();
$res_hostlimit->get_instance_by_resource($appliance->resources);
if (strlen($res_hostlimit->id)) {
if ($res_hostlimit->max_vms >= 0) {
$new_current_vms = $res_hostlimit->current_vms + 1;
if ($new_current_vms > $res_hostlimit->max_vms) {
$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Hostlimit max_vm is reached for resource {$appliance->resources}", "", "", 0, 0, $appliance->resources);
continue;
}
}
}
// resource pooling enabled ?
if (strcmp($show_resource_pools, "true")) {
// disabled, add any appliance from the right virtualization type
$active_appliance_list[] .= $id;
$active_appliance_resource_list[] .= $appliance->resources;
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- resource pooling is disabled", "", "", 0, 0, 0);
} else {
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- resource pooling is enabled $appliance->resources", "", "", 0, 0, 0);
// resource pooling enabled, check to which user group the resource belongs to
$private_resource = new cloudrespool();
$private_resource->get_instance_by_resource($appliance->resources);
// is this resource configured in the resource pools ?
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- resource pool id $private_resource->id !", "", "", 0, 0, 0);
if (strlen($private_resource->id)) {
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- resource $appliance->resources is in a resource pool", "", "", 0, 0, 0);
// is it hidden ?
if ($private_resource->cg_id >= 0) {
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- resource $appliance->resources is also configured in resource pool (not hidden)", "", "", 0, 0, 0);
$cloud_user = new clouduser();
$cloud_user->get_instance_by_id($cu_id);
$cloud_user_group = new cloudusergroup();
$cloud_user_group->get_instance_by_id($cloud_user->cg_id);
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- we have found the users group $cloud_user_group->id", "", "", 0, 0, 0);
// does it really belongs to the users group ?
if ($private_resource->cg_id == $cloud_user_group->id) {
// resource belongs to the users group, add appliance to list
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- adding appliance $id ", "", "", 0, 0, 0);
$active_appliance_list[] .= $id;
$active_appliance_resource_list[] .= $appliance->resources;
//} else {
// $event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Appliance $id (resource $appliance->resources) is NOT in dedicated for the users group", "", "", 0, 0, 0);
}
//} else {
// $event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Appliance $id (resource $appliance->resources) is marked as hidden", "", "", 0, 0, 0);
}
}
}
}
}
}
}
// did we found any active host ?
if (count($active_appliance_list) < 1) {
$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Warning ! There is no active virtualization host type {$vhost_type->name} available to bring up a new VM", "", "", 0, 0, 0);
$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Notice : Trying to find a Host which can start-from-off .....", "", "", 0, 0, 0);
// if this method finds a host it will block until the host is up + active
$cloud_host_start_from_off = new cloudhoststartfromoff();
$start_from_off_appliance_id = $cloud_host_start_from_off->find_host_to_start_from_off($vhost_type->id, $show_resource_pools, $cu_id, $host_start_from_off_timeout);
if ($start_from_off_appliance_id > 0) {
//$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "------- adding appliance $id ", "", "", 0, 0, 0);
$active_appliance_list[] .= $start_from_off_appliance_id;
// add to active resource list
$start_from_off_appliance = new appliance();
$start_from_off_appliance->get_instance_by_id($start_from_off_appliance_id);
$active_appliance_resource_list[] .= $start_from_off_appliance->resources;
} else {
// here we did not found any host to start-from-off
$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Warning ! Could not find any virtualization host type {$vhost_type->name} to start-from-off", "", "", 0, 0, 0);
$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Warning ! Giving up trying to start a new VM type {$vhost_type->name}", "", "", 0, 0, 0);
return false;
}
}
// ! for all virt-localboot VMs we need to make sure the VM is created on
// ! the same host as the image is located, for all others we try to lb
$less_load_resource_id = -1;
if (strstr($vtype->type, "-vm-local")) {
$origin_appliance = new appliance();
$origin_appliance->get_instance_by_name($name);
// if we have a cloudappliance already this create is coming from unpause
// The host to create the new VM on must be the image storage resource
$vstorage_cloud_app = new cloudappliance();
$vstorage_cloud_app->get_instance_by_appliance_id($origin_appliance->id);
if (strlen($vstorage_cloud_app->id)) {
$vstorage_image = new image();
$vstorage_image->get_instance_by_id($origin_appliance->imageid);
$vstorage = new storage();
$vstorage->get_instance_by_id($vstorage_image->storageid);
$vstorage_host_res_id = $vstorage->resource_id;
// check if the origin host is in the active appliances we have found
if (in_array($vstorage_host_res_id, $active_appliance_resource_list)) {
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "Origin host {$vstorage_host_res_id} is active. Creating the new VM", "", "", 0, 0, 0);
$resource = new resource();
$resource->get_instance_by_id($vstorage_host_res_id);
$less_load_resource_id = $vstorage_host_res_id;
} else {
$event->log("create", $_SERVER['REQUEST_TIME'], 2, "cloudvm.class.php", "Origin host {$vstorage_host_res_id} is not active. Not creating the new VM", "", "", 0, 0, 0);
}
} else {
// if we do not have a cloudappliance yet we can (should) loadbalance the create VM request
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "Using Loadbalancing Algorithm " . $vm_loadbalance_algorithm . " for creating the new VM", "", "", 0, 0, 0);
// the cloud-deployment hook of the virt-localboot VM will adapt the image storage id to the host id
switch ($vm_loadbalance_algorithm) {
case '0':
$less_load_resource_id = $this->vm_balance_load($active_appliance_list);
break;
case '1':
$less_load_resource_id = $this->vm_balance_memory($active_appliance_list, $memory);
break;
case '2':
$less_load_resource_id = $this->vm_balance_random($active_appliance_list);
break;
case '3':
$less_load_resource_id = $this->vm_balance_first_available($active_appliance_list);
break;
default:
$less_load_resource_id = $this->vm_balance_load($active_appliance_list);
break;
}
}
} else {
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "Using Loadbalancing Algorithm " . $vm_loadbalance_algorithm . " for creating the new VM", "", "", 0, 0, 0);
switch ($vm_loadbalance_algorithm) {
case '0':
$less_load_resource_id = $this->vm_balance_load($active_appliance_list);
break;
case '1':
$less_load_resource_id = $this->vm_balance_memory($active_appliance_list, $memory);
break;
case '2':
$less_load_resource_id = $this->vm_balance_random($active_appliance_list);
break;
case '3':
$less_load_resource_id = $this->vm_balance_first_available($active_appliance_list);
break;
default:
$less_load_resource_id = $this->vm_balance_load($active_appliance_list);
break;
}
}
if ($less_load_resource_id >= 0) {
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "Found Virtualization host resource {$less_load_resource_id} as the target for the new VM ", "", "", 0, 0, 0);
}
// additional network cards
if ($additional_nics > 0) {
$anic = 1;
$additional_nic_str = "";
$mac_gen_res = new resource();
while ($anic <= $additional_nics) {
$mac_gen_res->generate_mac();
switch ($virtualization_plugin_name) {
# VMware VMs need to get special macs
case 'vmware-esx':
$nic_nr = $anic;
$suggested_mac = $mac_gen_res->mac;
$new_forth_byte_first_bit = rand(1, 3);
$mac_gen_res_vmw = strtolower($vmware_mac_address_space . ":" . substr($suggested_mac, 9));
$mac_gen_res_vmw = substr_replace($mac_gen_res_vmw, $new_forth_byte_first_bit, 9, 1);
$additional_nic_str .= " -m" . $nic_nr . " " . $mac_gen_res_vmw;
break;
# VMs network parameter starts with -m1
# VMs network parameter starts with -m1
default:
$nic_nr = $anic;
$additional_nic_str .= " -m" . $nic_nr . " " . $mac_gen_res->mac;
break;
}
$anic++;
}
}
// swap, for the cloud VMs we simply calculate memory * 2
$swap = $memory * 2;
// start the VM on the appliance resource
$host_resource = new resource();
$host_resource->get_instance_by_id($less_load_resource_id);
$host_resource_ip = $host_resource->ip;
// we need to have an openQRM server object too since some of the
// virtualization commands are sent from openQRM directly
$openqrm = new openqrm_server();
// create the new resource + setting the virtualization type
$vm_resource_ip = "0.0.0.0";
// add to openQRM database
$vm_resource_fields["resource_ip"] = $vm_resource_ip;
$vm_resource_fields["resource_mac"] = $mac;
$vm_resource_fields["resource_localboot"] = 0;
$vm_resource_fields["resource_vtype"] = $vtype->id;
$vm_resource_fields["resource_vhostid"] = $less_load_resource_id;
$vm_resource_fields["resource_vname"] = $name;
$new_resource_id = (int) str_replace(".", "", str_pad(microtime(true), 15, "0"));
$vm_resource_fields["resource_id"] = $new_resource_id;
$host_resource->add($vm_resource_fields);
// send new-resource command now after the resource is created logically
$openqrm->send_command("openqrm_server_add_resource {$new_resource_id} {$mac} {$vm_resource_ip}");
// let the new resource commands settle
sleep(10);
// plug in the virtualization cloud hook
$virtualization_cloud_hook = "{$RootDir}/plugins/{$virtualization_plugin_name}/openqrm-{$virtualization_plugin_name}-cloud-hook.php";
if (file_exists($virtualization_cloud_hook)) {
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class", "Found plugin {$virtualization_plugin_name} handling to create the VM.", "", "", 0, 0, $new_resource_id);
require_once "{$virtualization_cloud_hook}";
$virtualization_method = "create_" . $vtype->type;
$virtualization_method = str_replace("-", "_", $virtualization_method);
$virtualization_method($less_load_resource_id, $name, $mac, $memory, $cpu, $swap, $additional_nic_str, $vncpassword, $source_image_id);
} else {
$event->log("cloud", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class", "Do not know how to create VM from type {$virtualization_plugin_name}.", "", "", 0, 0, 0);
// remove resource object
$vm_resource = new resource();
$vm_resource->get_instance_by_id($new_resource_id);
$vm_resource->remove($new_resource_id, $mac);
return false;
}
// update hostlimits quite early to avoid overloading a Host with non-starting VMs
// add or update hostlimits
$res_hostlimit = new cloudhostlimit();
$res_hostlimit->get_instance_by_resource($host_resource->id);
if (strlen($res_hostlimit->id)) {
// update
$current_vms = $res_hostlimit->current_vms + 1;
$cloud_hostlimit_fields["hl_current_vms"] = $current_vms;
$res_hostlimit->update($res_hostlimit->id, $cloud_hostlimit_fields);
} else {
// add
$cloud_hostlimit_fields["hl_id"] = (int) str_replace(".", "", str_pad(microtime(true), 15, "0"));
$cloud_hostlimit_fields["hl_resource_id"] = $host_resource->id;
$cloud_hostlimit_fields["hl_max_vms"] = -1;
$cloud_hostlimit_fields["hl_current_vms"] = 1;
$res_hostlimit->add($cloud_hostlimit_fields);
}
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "New VM created with resource id " . $new_resource_id . " and started. Waiting now until it is active/idle", "", "", 0, 0, 0);
if ($vm_provision_delay > 0) {
$event->log("create", $_SERVER['REQUEST_TIME'], 5, "cloudvm.class.php", "Delaying the provisioning of resource id " . $new_resource_id . " for " . $vm_provision_delay . " seconds.", "", "", 0, 0, 0);
sleep($vm_provision_delay);
}
// setting this object resource id as return state
$this->resource_id = $new_resource_id;
}
