mirror of
https://github.com/OpenNebula/one.git
synced 2024-12-22 13:33:52 +03:00
396 lines
11 KiB
C++
396 lines
11 KiB
C++
/* -------------------------------------------------------------------------- */
|
|
/* Copyright 2002-2014, OpenNebula Project (OpenNebula.org), C12G Labs */
|
|
/* */
|
|
/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
|
|
/* not use this file except in compliance with the License. You may obtain */
|
|
/* a copy of the License at */
|
|
/* */
|
|
/* http://www.apache.org/licenses/LICENSE-2.0 */
|
|
/* */
|
|
/* Unless required by applicable law or agreed to in writing, software */
|
|
/* distributed under the License is distributed on an "AS IS" BASIS, */
|
|
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
|
|
/* See the License for the specific language governing permissions and */
|
|
/* limitations under the License. */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#ifndef VIRTUAL_MACHINE_MANAGER_H_
|
|
#define VIRTUAL_MACHINE_MANAGER_H_
|
|
|
|
#include "MadManager.h"
|
|
#include "ActionManager.h"
|
|
#include "VirtualMachineManagerDriver.h"
|
|
#include "VirtualMachinePool.h"
|
|
#include "HostPool.h"
|
|
#include "NebulaTemplate.h"
|
|
|
|
using namespace std;
|
|
|
|
extern "C" void * vmm_action_loop(void *arg);
|
|
|
|
class VirtualMachineManager : public MadManager, public ActionListener
|
|
{
|
|
public:
|
|
|
|
VirtualMachineManager(
|
|
VirtualMachinePool * _vmpool,
|
|
HostPool * _hpool,
|
|
time_t _timer_period,
|
|
time_t _poll_period,
|
|
bool _do_vm_poll,
|
|
int _vm_limit,
|
|
vector<const Attribute*>& _mads);
|
|
|
|
~VirtualMachineManager(){};
|
|
|
|
enum Actions
|
|
{
|
|
DEPLOY,
|
|
SAVE,
|
|
SHUTDOWN,
|
|
CANCEL,
|
|
CANCEL_PREVIOUS,
|
|
CLEANUP,
|
|
CLEANUP_BOTH,
|
|
CLEANUP_PREVIOUS,
|
|
MIGRATE,
|
|
RESTORE,
|
|
REBOOT,
|
|
RESET,
|
|
POLL,
|
|
TIMER,
|
|
DRIVER_CANCEL,
|
|
FINALIZE,
|
|
ATTACH,
|
|
DETACH,
|
|
ATTACH_NIC,
|
|
DETACH_NIC,
|
|
SNAPSHOT_CREATE,
|
|
SNAPSHOT_REVERT,
|
|
SNAPSHOT_DELETE
|
|
};
|
|
|
|
/**
|
|
* Triggers specific actions to the Virtual Machine Manager. This function
|
|
* wraps the ActionManager trigger function.
|
|
* @param action the VMM action
|
|
* @param vid VM unique id. This is the argument of the passed to the
|
|
* invoked action.
|
|
*/
|
|
virtual void trigger(
|
|
Actions action,
|
|
int vid);
|
|
|
|
/**
|
|
* This functions starts the associated listener thread, and creates a
|
|
* new thread for the Virtual Machine Manager. This thread will wait in
|
|
* an action loop till it receives ACTION_FINALIZE.
|
|
* @return 0 on success.
|
|
*/
|
|
int start();
|
|
|
|
/**
|
|
* Gets the thread identification.
|
|
* @return pthread_t for the manager thread (that in the action loop).
|
|
*/
|
|
pthread_t get_thread_id() const
|
|
{
|
|
return vmm_thread;
|
|
};
|
|
|
|
/**
|
|
* Loads Virtual Machine Manager Mads defined in configuration file
|
|
* @param uid of the user executing the driver. When uid is 0 the nebula
|
|
* identity will be used. Otherwise the Mad will be loaded through the
|
|
* sudo application.
|
|
*/
|
|
int load_mads(int uid);
|
|
|
|
private:
|
|
/**
|
|
* Thread id for the Virtual Machine Manager
|
|
*/
|
|
pthread_t vmm_thread;
|
|
|
|
/**
|
|
* Pointer to the Virtual Machine Pool, to access VMs
|
|
*/
|
|
VirtualMachinePool * vmpool;
|
|
|
|
/**
|
|
* Pointer to the Host Pool, to access hosts
|
|
*/
|
|
HostPool * hpool;
|
|
|
|
/**
|
|
* Timer period for the Virtual Machine Manager.
|
|
*/
|
|
time_t timer_period;
|
|
|
|
/**
|
|
* Virtual Machine polling interval
|
|
*/
|
|
time_t poll_period;
|
|
|
|
/**
|
|
* Perform pro-active VM monitoring
|
|
*/
|
|
bool do_vm_poll;
|
|
|
|
/**
|
|
* Virtual Machine polling limit
|
|
*/
|
|
int vm_limit;
|
|
|
|
/**
|
|
* Action engine for the Manager
|
|
*/
|
|
ActionManager am;
|
|
|
|
/**
|
|
* Function to execute the Manager action loop method within a new pthread
|
|
* (requires C linkage)
|
|
*/
|
|
friend void * vmm_action_loop(void *arg);
|
|
|
|
/**
|
|
* Returns a pointer to a Virtual Machine Manager driver.
|
|
* @param uid of the owner of the driver
|
|
* @param name of an attribute of the driver (e.g. its type)
|
|
* @param value of the attribute
|
|
* @return the VM driver owned by uid with attribute name equal to value
|
|
* or 0 in not found
|
|
*/
|
|
const VirtualMachineManagerDriver * get(
|
|
const string& name,
|
|
const string& value)
|
|
{
|
|
return static_cast<const VirtualMachineManagerDriver *>
|
|
(MadManager::get(0,name,value));
|
|
};
|
|
|
|
/**
|
|
* Returns a pointer to a Virtual Machine Manager driver. The driver is
|
|
* searched by its name.
|
|
* @param name the name of the driver
|
|
* @return the VM driver owned by uid with attribute name equal to value
|
|
* or 0 in not found
|
|
*/
|
|
const VirtualMachineManagerDriver * get(
|
|
const string& name)
|
|
{
|
|
string _name("NAME");
|
|
return static_cast<const VirtualMachineManagerDriver *>
|
|
(MadManager::get(0,_name,name));
|
|
};
|
|
|
|
/**
|
|
* The action function executed when an action is triggered.
|
|
* @param action the name of the action
|
|
* @param arg arguments for the action function
|
|
*/
|
|
void do_action(
|
|
const string & action,
|
|
void * arg);
|
|
|
|
/**
|
|
* Function to format a VMM Driver message in the form:
|
|
* <VMM_DRIVER_ACTION_DATA>
|
|
* <HOST> hostname </HOST>
|
|
* <NET_DRV> net_drv </NET_DRV>
|
|
* <MIGR_HOST> m_hostname </MIGR_HOST>
|
|
* <MIGR_NET_DRV> m_net_drv </MIGR_NET_DRV>
|
|
* <DOMAIN> domain_id </DOMAIN>
|
|
* <DEPLOYMENT_FILE> dfile </DEPLOYMENT_FILE>
|
|
* <CHECKPOINT_FILE> cfile </CHECKPOINT_FILE>
|
|
* <VM>
|
|
* VM representation in XML
|
|
* </VM>
|
|
* </VMM_DRIVER_ACTION_DATA>
|
|
*
|
|
* @param hostname of the host to perform the action
|
|
* @param net_drv name of the vlan driver
|
|
* @param m_hostname name of the host to migrate the VM
|
|
* @param m_net_drv name of the vlan driver
|
|
* @param domain domain id as returned by the hypervisor
|
|
* @param dfile deployment file to boot the VM
|
|
* @param cfile checkpoint file to save the VM
|
|
* @param disk_id Disk to attach/detach, if any
|
|
* @param tm_command Transfer Manager command to attach/detach, if any
|
|
* @param tm_command_rollback TM command in case of attach failure
|
|
* @param disk_target_path Path of the disk to attach, if any
|
|
* @param tmpl the VM information in XML
|
|
*/
|
|
string * format_message(
|
|
const string& hostname,
|
|
const string& net_drv,
|
|
const string& m_hostname,
|
|
const string& m_net_drv,
|
|
const string& domain,
|
|
const string& ldfile,
|
|
const string& rdfile,
|
|
const string& cfile,
|
|
const string& tm_command,
|
|
const string& tm_command_rollback,
|
|
const string& disk_target_path,
|
|
const string& tmpl);
|
|
|
|
/**
|
|
* Function executed when a DEPLOY action is received. It deploys a VM on
|
|
* a Host.
|
|
* @param vid the id of the VM to be deployed.
|
|
*/
|
|
void deploy_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Function to stop a running VM and generate a checkpoint file. This
|
|
* function is executed when a SAVE action is triggered.
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void save_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Shutdowns a VM when a SHUTDOWN action is received.
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void shutdown_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Cancels a VM when a CANCEL action is received.
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void cancel_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Cancels a VM (in the previous host) when a CANCEL action is received.
|
|
* Note that the domain-id is the last one returned by a boot action
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void cancel_previous_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Cleanups a host (cancel VM + delete disk images).
|
|
* @param vid the id of the VM.
|
|
* @param cancel_previous if true the VM will be canceled in the previous
|
|
* host (only relevant to delete VM's in MIGRATE state)
|
|
*/
|
|
void cleanup_action(
|
|
int vid, bool cancel_previous);
|
|
|
|
/**
|
|
* Cleanups the previous host (cancel VM + delete disk images).
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void cleanup_previous_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Function to migrate (live) a VM (MIGRATE action).
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void migrate_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Restores a VM from a checkpoint file.
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void restore_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Reboots a running VM.
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void reboot_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Resets a running VM.
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void reset_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Polls a VM.
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void poll_action(
|
|
int vid);
|
|
|
|
/**
|
|
* This function is executed periodically to poll the running VMs
|
|
*/
|
|
void timer_action();
|
|
|
|
/**
|
|
* Attaches a new disk to a VM. The VM must have a disk with the
|
|
* attribute ATTACH = YES
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void attach_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Detaches a disk from a VM. The VM must have a disk with the
|
|
* attribute ATTACH = YES
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void detach_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Attaches a new NIC to a VM. The VM must have a NIC with the
|
|
* attribute ATTACH = YES
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void attach_nic_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Detaches a NIC from a VM. The VM must have a NIC with the
|
|
* attribute ATTACH = YES
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void detach_nic_action(
|
|
int vid);
|
|
|
|
/**
|
|
* Creates a new system snapshot. The VM must have a snapshot with the
|
|
* attribute ACTIVE = YES
|
|
*
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void snapshot_create_action(int vid);
|
|
|
|
/**
|
|
* Reverts to a snapshot. The VM must have a snapshot with the
|
|
* attribute ACTIVE = YES
|
|
*
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void snapshot_revert_action(int vid);
|
|
|
|
/**
|
|
* Deletes a snapshot. The VM must have a snapshot with the
|
|
* attribute ACTIVE = YES
|
|
*
|
|
* @param vid the id of the VM.
|
|
*/
|
|
void snapshot_delete_action(int vid);
|
|
|
|
/**
|
|
* This function cancels the current driver operation
|
|
*/
|
|
void driver_cancel_action(
|
|
int vid);
|
|
};
|
|
|
|
#endif /*VIRTUAL_MACHINE_MANAGER_H*/
|