mirror of
https://github.com/OpenNebula/one.git
synced 2024-12-22 13:33:52 +03:00
599 lines
20 KiB
C++
599 lines
20 KiB
C++
/* -------------------------------------------------------------------------- */
|
|
/* Copyright 2002-2018, OpenNebula Project, OpenNebula Systems */
|
|
/* */
|
|
/* 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 DISPATCH_MANAGER_H_
|
|
#define DISPATCH_MANAGER_H_
|
|
|
|
#include "ActionManager.h"
|
|
#include "HostPool.h"
|
|
#include "VirtualMachinePool.h"
|
|
#include "VirtualRouterPool.h"
|
|
#include "ClusterPool.h"
|
|
#include "UserPool.h"
|
|
|
|
using namespace std;
|
|
|
|
extern "C" void * dm_action_loop(void *arg);
|
|
|
|
//Forward definitions
|
|
class TransferManager;
|
|
class LifeCycleManager;
|
|
class VirtualMachineManager;
|
|
class ImageManager;
|
|
|
|
struct RequestAttributes;
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
class DMAction : public ActionRequest
|
|
{
|
|
public:
|
|
enum Actions
|
|
{
|
|
SUSPEND_SUCCESS, /**< Send by LCM when a VM is suspended*/
|
|
STOP_SUCCESS, /**< Send by LCM when a VM is stopped*/
|
|
UNDEPLOY_SUCCESS, /**< Send by LCM when a VM is undeployed and saved*/
|
|
POWEROFF_SUCCESS, /**< Send by LCM when a VM is powered off */
|
|
DONE, /**< Send by LCM when a VM is shut down*/
|
|
RESUBMIT /**< Send by LCM when a VM is ready for resubmission*/
|
|
};
|
|
|
|
DMAction(Actions a, int v):ActionRequest(ActionRequest::USER),
|
|
_action(a), _vm_id(v){};
|
|
|
|
DMAction(const DMAction& o):ActionRequest(o._type), _action(o._action),
|
|
_vm_id(o._vm_id){};
|
|
|
|
Actions action() const
|
|
{
|
|
return _action;
|
|
}
|
|
|
|
int vm_id() const
|
|
{
|
|
return _vm_id;
|
|
}
|
|
|
|
ActionRequest * clone() const
|
|
{
|
|
return new DMAction(*this);
|
|
}
|
|
|
|
private:
|
|
Actions _action;
|
|
|
|
int _vm_id;
|
|
};
|
|
|
|
class DispatchManager : public ActionListener
|
|
{
|
|
public:
|
|
|
|
DispatchManager():
|
|
hpool(0), vmpool(0), clpool(0), vrouterpool(0), tm(0), vmm(0), lcm(0), imagem(0)
|
|
{
|
|
am.addListener(this);
|
|
};
|
|
|
|
~DispatchManager(){};
|
|
|
|
/**
|
|
* Initializes internal pointers to other managers. Must be called when
|
|
* all the other managers exist in Nebula::instance
|
|
*/
|
|
void init_managers();
|
|
|
|
/**
|
|
* Triggers specific actions to the Dispatch Manager. This function
|
|
* wraps the ActionManager trigger function.
|
|
* @param action the DM action
|
|
* @param vid VM unique id. This is the argument of the passed to the
|
|
* invoked action.
|
|
*/
|
|
void trigger(DMAction::Actions action, int vid)
|
|
{
|
|
DMAction dm_ar(action, vid);
|
|
|
|
am.trigger(dm_ar);
|
|
}
|
|
|
|
void finalize()
|
|
{
|
|
am.finalize();
|
|
}
|
|
|
|
/**
|
|
* This functions creates a new thread for the Dispatch 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 dm_thread;
|
|
};
|
|
|
|
//--------------------------------------------------------------------------
|
|
// DM Actions, the RM and the Scheduler will invoke this methods
|
|
//--------------------------------------------------------------------------
|
|
/**
|
|
* Deploys a VM. A new history record MUST be added before calling this
|
|
* function. Also the VM MUST have its mutex locked. If the function fails
|
|
* the calling funtion is responsible for recovering from the error.
|
|
* @param vm pointer to a VirtualMachine with its mutex locked.
|
|
* @param ra information about the API call request
|
|
* @return 0 on success
|
|
*/
|
|
int deploy(VirtualMachine * vm, const RequestAttributes& request);
|
|
|
|
/**
|
|
* Sets an imported VM to RUNNING state, a history record MUST be added,
|
|
* and the VM MUST be locked.
|
|
* @param vm pointer to a VirtualMachine with its mutex locked.
|
|
* @param ra information about the API call request
|
|
* @return 0 on success
|
|
*/
|
|
int import(VirtualMachine * vm, const RequestAttributes& ra);
|
|
|
|
/**
|
|
* Migrates a VM. The following actions must be performed before calling
|
|
* this function:
|
|
* - Lock the VM mutex.
|
|
* - Update the History statistics of the current host.
|
|
* - Add a new History record with the new host.
|
|
* If the function fails the calling funtion is responsible for recovering
|
|
* from the error.
|
|
* @param vm pointer to a VirtualMachine with its mutex locked.
|
|
* @param poff migration type: 0(save), 1(poff), 2(poff-hard)
|
|
* @param ra information about the API call request
|
|
* @return 0 on success
|
|
*/
|
|
int migrate(VirtualMachine * vm, int poff, const RequestAttributes& request);
|
|
|
|
/**
|
|
* Migrates a VM. The following actions must be performed before calling
|
|
* this function:
|
|
* - Lock the VM mutex.
|
|
* - Update the History statistics of the current host.
|
|
* - Add a new History record with the new host.
|
|
* If the function fails the calling funtion is responsible for recovering
|
|
* from the error.
|
|
* @param vm pointer to a VirtualMachine with its mutex locked.
|
|
* @param ra information about the API call request
|
|
* @return 0 on success
|
|
*/
|
|
int live_migrate(VirtualMachine * vm, const RequestAttributes& request);
|
|
|
|
/**
|
|
* Terminates a VM.
|
|
* @param vid VirtualMachine identification
|
|
* @param hard True to force the shutdown (cancel instead of shutdown)
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int terminate(int vid, bool hard, const RequestAttributes& request,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Shuts down a VM, but it is saved in the system DS instead of destroyed.
|
|
* @param vid VirtualMachine identification
|
|
* @param hard True to force the shutdown (cancel instead of shutdown)
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int undeploy (int vid, bool hard, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Powers off a VM.
|
|
* @param vid VirtualMachine identification
|
|
* @param ra information about the API call request
|
|
* @param hard True to force the poweroff (cancel instead of shutdown)
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int poweroff (int vid, bool hard, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Holds a VM.
|
|
* @param vid VirtualMachine identification
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int hold(int vid, const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Releases a VM.
|
|
* @param vid VirtualMachine identification
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int release(int vid, const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Stops a VM.
|
|
* @param vid VirtualMachine identification
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int stop(int vid, const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Suspends a VM.
|
|
* @param vid VirtualMachine identification
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int suspend(int vid, const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Resumes a VM.
|
|
* @param vid VirtualMachine identification
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int resume(int vid, const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Ends a VM life cycle inside ONE.
|
|
* @param vm VirtualMachine object
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, the VM mutex is unlocked
|
|
*/
|
|
int delete_vm(VirtualMachine * vm, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* VM ID interface
|
|
*/
|
|
int delete_vm(int vid, const RequestAttributes& ra, string& error_str)
|
|
{
|
|
VirtualMachine * vm;
|
|
|
|
vm = vmpool->get(vid);
|
|
|
|
if ( vm == 0 )
|
|
{
|
|
error_str = "Virtual machine does not exist";
|
|
return -1;
|
|
}
|
|
|
|
return delete_vm(vm, ra, error_str);
|
|
}
|
|
|
|
/**
|
|
* Moves a VM to PENDING state preserving any resource (i.e. leases) and id
|
|
* @param vm VirtualMachine object
|
|
* @param ra information about the API call request
|
|
* @return 0 on success
|
|
*/
|
|
int delete_recreate(VirtualMachine * vm, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Ends a VM life cycle inside ONE but let the VM running at the Hipervisor.
|
|
* @param vm VirtualMachine object
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, the VM mutex is unlocked
|
|
*/
|
|
int delete_vm_db(VirtualMachine * vm, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Recover the last operation on the VM
|
|
* @param vm VirtualMachine object
|
|
* @param success if the operation is assumed to succeed or not
|
|
* @param ra information about the API call request
|
|
* @return 0 on success
|
|
*/
|
|
int recover(VirtualMachine * vm, bool success, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Retry the last operation on the VM
|
|
* @param vm VirtualMachine object
|
|
* @param ra information about the API call request
|
|
* @return 0 on success
|
|
*/
|
|
int retry(VirtualMachine * vm, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Reboots a VM preserving any resource and RUNNING state
|
|
* @param vid VirtualMachine identification
|
|
* @param hard True to force the shutdown (cancel instead of shutdown)
|
|
* @param ra information about the API call request
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int reboot(int vid, bool hard, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Set the re-scheduling flag for the VM (must be in RUNNING state)
|
|
* @param vid VirtualMachine identification
|
|
* @param do_resched set or unset the flag
|
|
* @param ra information about the API call request
|
|
*
|
|
* @return 0 on success, -1 if the VM does not exits or -2 if the VM is
|
|
* in a wrong a state
|
|
*/
|
|
int resched(int vid, bool do_resched, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Starts the attach disk action.
|
|
* @param vid VirtualMachine identification
|
|
* @param tmpl Template containing the new DISK attribute.
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int attach(int vid, VirtualMachineTemplate * tmpl,
|
|
const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Starts the detach disk action.
|
|
* @param vid VirtualMachine identification
|
|
* @param disk_id Disk to detach
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int detach(int id, int disk_id, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Starts the attach NIC action.
|
|
* @param vid VirtualMachine identification
|
|
* @param tmpl Template containing the new NIC attribute.
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int attach_nic(int vid, VirtualMachineTemplate * tmpl,
|
|
const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Starts the detach NIC action.
|
|
* @param vid VirtualMachine identification
|
|
* @param nic_id NIC to detach
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int detach_nic(int id, int nic_id, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Starts the snapshot create action
|
|
*
|
|
* @param vid VirtualMachine identification
|
|
* @param name Name for the new snapshot
|
|
* @param snap_id Will contain the new snapshot ID
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int snapshot_create(int vid, string& name, int& snap_id,
|
|
const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Starts the snapshot revert action
|
|
*
|
|
* @param vid VirtualMachine identification
|
|
* @param snap_id Snapshot to be restored
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int snapshot_revert(int vid, int snap_id, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Starts the snapshot delete action
|
|
*
|
|
* @param vid VirtualMachine identification
|
|
* @param snap_id Snapshot to be deleted
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int snapshot_delete(int vid, int snap_id, const RequestAttributes& ra,
|
|
string& error_str);
|
|
|
|
/**
|
|
* Starts the disk snapshot create action
|
|
*
|
|
* @param vid VirtualMachine identification
|
|
* @param did DISK identification
|
|
* @param name Description for the new snapshot
|
|
* @param snap_id Will contain the new snapshot ID
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int disk_snapshot_create(int vid, int did, const string& name, int& snap_id,
|
|
const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Reverts the disk state to a previous snapshot
|
|
*
|
|
* @param vid VirtualMachine identification
|
|
* @param did DISK identification
|
|
* @param snap_id Snapshot to be restored
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int disk_snapshot_revert(int vid, int did, int snap_id,
|
|
const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Deletes a disk snapshot
|
|
*
|
|
* @param vid VirtualMachine identification
|
|
* @param did DISK identification
|
|
* @param snap_id Snapshot to be restored
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int disk_snapshot_delete(int vid, int did, int snap_id,
|
|
const RequestAttributes& ra, string& error_str);
|
|
|
|
/**
|
|
* Starts the disk resize create action
|
|
*
|
|
* @param vid VirtualMachine identification
|
|
* @param did DISK identification
|
|
* @param size new size for the disk
|
|
* @param ra information about the API call request
|
|
* @param error_str Error reason, if any
|
|
*
|
|
* @return 0 on success, -1 otherwise
|
|
*/
|
|
int disk_resize(int vid, int did, long long new_size,
|
|
const RequestAttributes& ra, string& error_str);
|
|
private:
|
|
/**
|
|
* Thread id for the Dispatch Manager
|
|
*/
|
|
pthread_t dm_thread;
|
|
|
|
/**
|
|
* Pointer to the Host Pool, to access hosts
|
|
*/
|
|
HostPool * hpool;
|
|
|
|
/**
|
|
* Pointer to the Virtual Machine Pool, to access VMs
|
|
*/
|
|
VirtualMachinePool * vmpool;
|
|
|
|
/**
|
|
* Pointer to the User Pool, to access user
|
|
*/
|
|
UserPool * upool;
|
|
|
|
/**
|
|
* Pointer to the Cluster Pool
|
|
*/
|
|
ClusterPool * clpool;
|
|
|
|
/**
|
|
* Pointer to the Virtual Router Pool
|
|
*/
|
|
VirtualRouterPool * vrouterpool;
|
|
|
|
/**
|
|
* Pointer to TransferManager
|
|
*/
|
|
TransferManager * tm;
|
|
|
|
/**
|
|
* Pointer to VirtualMachineManager
|
|
*/
|
|
VirtualMachineManager * vmm;
|
|
|
|
/**
|
|
* Pointer to LifeCycleManager
|
|
*/
|
|
LifeCycleManager * lcm;
|
|
|
|
/**
|
|
* Pointer to ImageManager
|
|
*/
|
|
ImageManager * imagem;
|
|
|
|
/**
|
|
* Action engine for the Manager
|
|
*/
|
|
ActionManager am;
|
|
|
|
/**
|
|
* Frees the resources associated to a VM: disks, ip addresses and Quotas
|
|
*/
|
|
void free_vm_resources(VirtualMachine * vm, bool check_images);
|
|
|
|
//--------------------------------------------------------------------------
|
|
// DM Actions associated with a VM state transition
|
|
//--------------------------------------------------------------------------
|
|
|
|
void suspend_success_action(int vid);
|
|
|
|
void stop_success_action(int vid);
|
|
|
|
void undeploy_success_action(int vid);
|
|
|
|
void poweroff_success_action(int vid);
|
|
|
|
void done_action(int vid);
|
|
|
|
void resubmit_action(int vid);
|
|
|
|
/**
|
|
* Function to execute the Manager action loop method within a new pthread
|
|
* (requires C linkage)
|
|
*/
|
|
friend void * dm_action_loop(void *arg);
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Action Listener interface
|
|
// -------------------------------------------------------------------------
|
|
void finalize_action(const ActionRequest& ar)
|
|
{
|
|
NebulaLog::log("DiM",Log::INFO,"Stopping Dispatch Manager...");
|
|
};
|
|
|
|
void user_action(const ActionRequest& ar);
|
|
|
|
/**
|
|
* Fill a template only with the necessary attributes to update the quotas
|
|
* @param vm with the attributes
|
|
* @param template that will be filled
|
|
* @param only_running true to not add CPU, MEMORY and VMS counters
|
|
*/
|
|
void get_quota_template(VirtualMachine * vm,
|
|
VirtualMachineTemplate& quota_tmpl, bool only_running);
|
|
};
|
|
|
|
#endif /*DISPATCH_MANAGER_H*/
|