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6b6904a6c0
one/include/VirtualMachine.h
Ruben S. Montero 6b6904a6c0 B #2052: Add mixed mode for ALLOW_ORPHANS to accomodate Ceph snapshots 
dependencies
Co-authored-by: Christian González <cgonzalez@opennebula.systems>
2018-12-24 14:00:38 +01:00

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/* -------------------------------------------------------------------------- */
/* 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 VIRTUAL_MACHINE_H_
#define VIRTUAL_MACHINE_H_
#include "VirtualMachineTemplate.h"
#include "VirtualMachineDisk.h"
#include "VirtualMachineNic.h"
#include "VirtualMachineMonitorInfo.h"
#include "PoolSQL.h"
#include "History.h"
#include "Image.h"
#include "Log.h"
#include "NebulaLog.h"
#include "NebulaUtil.h"
#include "Quotas.h"
#include <time.h>
#include <set>
#include <sstream>
using namespace std;
class AuthRequest;
class Snapshots;
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/**
* The Virtual Machine class. It represents a VM...
*/
class VirtualMachine : public PoolObjectSQL
{
public:
// -------------------------------------------------------------------------
// VM States
// -------------------------------------------------------------------------
/**
* Global Virtual Machine state
*/
enum VmState
{
INIT = 0,
PENDING = 1,
HOLD = 2,
ACTIVE = 3,
STOPPED = 4,
SUSPENDED = 5,
DONE = 6,
//FAILED = 7,
POWEROFF = 8,
UNDEPLOYED = 9,
CLONING = 10,
CLONING_FAILURE = 11
};
/**
* Virtual Machine state associated to the Life-cycle Manager
*/
enum LcmState
{
LCM_INIT = 0,
PROLOG = 1,
BOOT = 2,
RUNNING = 3,
MIGRATE = 4,
SAVE_STOP = 5,
SAVE_SUSPEND = 6,
SAVE_MIGRATE = 7,
PROLOG_MIGRATE = 8,
PROLOG_RESUME = 9,
EPILOG_STOP = 10,
EPILOG = 11,
SHUTDOWN = 12,
//CANCEL = 13,
//FAILURE = 14,
CLEANUP_RESUBMIT = 15,
UNKNOWN = 16,
HOTPLUG = 17,
SHUTDOWN_POWEROFF = 18,
BOOT_UNKNOWN = 19,
BOOT_POWEROFF = 20,
BOOT_SUSPENDED = 21,
BOOT_STOPPED = 22,
CLEANUP_DELETE = 23,
HOTPLUG_SNAPSHOT = 24,
HOTPLUG_NIC = 25,
HOTPLUG_SAVEAS = 26,
HOTPLUG_SAVEAS_POWEROFF = 27,
HOTPLUG_SAVEAS_SUSPENDED = 28,
SHUTDOWN_UNDEPLOY = 29,
EPILOG_UNDEPLOY = 30,
PROLOG_UNDEPLOY = 31,
BOOT_UNDEPLOY = 32,
HOTPLUG_PROLOG_POWEROFF = 33,
HOTPLUG_EPILOG_POWEROFF = 34,
BOOT_MIGRATE = 35,
BOOT_FAILURE = 36,
BOOT_MIGRATE_FAILURE = 37,
PROLOG_MIGRATE_FAILURE = 38,
PROLOG_FAILURE = 39,
EPILOG_FAILURE = 40,
EPILOG_STOP_FAILURE = 41,
EPILOG_UNDEPLOY_FAILURE = 42,
PROLOG_MIGRATE_POWEROFF = 43,
PROLOG_MIGRATE_POWEROFF_FAILURE = 44,
PROLOG_MIGRATE_SUSPEND = 45,
PROLOG_MIGRATE_SUSPEND_FAILURE = 46,
BOOT_UNDEPLOY_FAILURE = 47,
BOOT_STOPPED_FAILURE = 48,
PROLOG_RESUME_FAILURE = 49,
PROLOG_UNDEPLOY_FAILURE = 50,
DISK_SNAPSHOT_POWEROFF = 51,
DISK_SNAPSHOT_REVERT_POWEROFF = 52,
DISK_SNAPSHOT_DELETE_POWEROFF = 53,
DISK_SNAPSHOT_SUSPENDED = 54,
DISK_SNAPSHOT_REVERT_SUSPENDED = 55,
DISK_SNAPSHOT_DELETE_SUSPENDED = 56,
DISK_SNAPSHOT = 57,
//DISK_SNAPSHOT_REVERT = 58,
DISK_SNAPSHOT_DELETE = 59,
PROLOG_MIGRATE_UNKNOWN = 60,
PROLOG_MIGRATE_UNKNOWN_FAILURE = 61,
DISK_RESIZE = 62,
DISK_RESIZE_POWEROFF = 63,
DISK_RESIZE_UNDEPLOYED = 64
};
/**
* Functions to convert to/from string the VM states
*/
static int vm_state_from_str(string& st, VmState& state);
static string& vm_state_to_str(string& st, VmState state);
static int lcm_state_from_str(string& st, LcmState& state);
static string& lcm_state_to_str(string& st, LcmState state);
/**
* Returns the VM state to string, using the lcm state if the current state
* is ACTIVE.
* @return the state sting
*/
string state_str();
/**
* Returns the VM state (Dispatch Manager)
* @return the VM state
*/
VmState get_state() const
{
return state;
};
VmState get_prev_state() const
{
return prev_state;
};
/**
* Returns the VM state (life-cycle Manager)
* @return the VM state
*/
LcmState get_lcm_state() const
{
return lcm_state;
};
LcmState get_prev_lcm_state() const
{
return prev_lcm_state;
};
/**
* Sets VM state
* @param s state
*/
void set_state(VmState s)
{
string st;
state = s;
log("VM", Log::INFO, "New state is " + vm_state_to_str(st, s));
};
/**
* Sets VM LCM state
* @param s state
*/
void set_state(LcmState s)
{
string st;
lcm_state = s;
log("VM", Log::INFO, "New LCM state is " + lcm_state_to_str(st, s));
};
/**
* Sets the previous state to the current one
*/
void set_prev_state()
{
prev_state = state;
prev_lcm_state = lcm_state;
};
/**
* Test if the VM has changed state since last time prev state was set
* @return true if VM changed state
*/
bool has_changed_state()
{
return (prev_lcm_state != lcm_state || prev_state != state);
}
/**
* Sets the re-scheduling flag
* @param set or unset the re-schedule flag
*/
void set_resched(bool do_sched)
{
resched = do_sched ? 1 : 0;
};
// -------------------------------------------------------------------------
// Log & Print
// -------------------------------------------------------------------------
/**
* writes a log message in vm.log. The class lock should be locked and
* the VM MUST BE obtained through the VirtualMachinePool get() method.
*/
void log(
const char * module,
const Log::MessageType type,
const ostringstream& message) const
{
if (_log != 0)
{
_log->log(module,type,message.str().c_str());
}
};
/**
* writes a log message in vm.log. The class lock should be locked and
* the VM MUST BE obtained through the VirtualMachinePool get() method.
*/
void log(
const char * module,
const Log::MessageType type,
const char * message) const
{
if (_log != 0)
{
_log->log(module,type,message);
}
};
/**
* writes a log message in vm.log. The class lock should be locked and
* the VM MUST BE obtained through the VirtualMachinePool get() method.
*/
void log(
const char * module,
const Log::MessageType type,
const string& message) const
{
log(module, type, message.c_str());
};
// ------------------------------------------------------------------------
// Dynamic Info
// ------------------------------------------------------------------------
/**
* Updates VM dynamic information (id).
* @param _deploy_id the VMM driver specific id
*/
void set_deploy_id (const string& _deploy_id)
{
deploy_id = _deploy_id;
};
/**
* Updates VM dynamic information (usage counters), and updates last_poll,
* and copies it to history record for acct.
*/
int update_info(const string& monitor_data);
/**
* Clears the VM monitor information usage counters (MEMORY, CPU),
* last_poll, custom attributes, and copies it to the history record
* for acct.
*/
void reset_info()
{
last_poll = time(0);
monitoring.replace("CPU","0.0");
monitoring.replace("MEMORY","0");
set_vm_info();
clear_template_monitor_error();
}
VirtualMachineMonitorInfo& get_info()
{
return monitoring;
}
/**
* Returns the deployment ID
* @return the VMM driver specific ID
*/
const string& get_deploy_id() const
{
return deploy_id;
};
/**
* Sets the VM exit time
* @param _et VM exit time (when it arrived DONE/FAILED states)
*/
void set_exit_time(time_t et)
{
etime = et;
};
/**
* Sets the KERNEL OS attribute (path to the kernel file). Used when
* the template is using a FILE Datastore for it
* @param path to the kernel (in the remote host)
*/
void set_kernel(const string& kernel)
{
VectorAttribute * os = obj_template->get("OS");
if ( os == 0 )
{
return;
}
os->replace("KERNEL", kernel);
};
/**
* Sets the INITRD OS attribute (path to the initrd file). Used when
* the template is using a FILE Datastore for it
* @param path to the initrd (in the remote host)
*/
void set_initrd(const string& initrd)
{
VectorAttribute * os = obj_template->get("OS");
if ( os == 0 )
{
return;
}
os->replace("INITRD", initrd);
};
// ------------------------------------------------------------------------
// Access to VM locations
// ------------------------------------------------------------------------
/**
* Returns the remote VM directory. The VM remote dir is in the form:
* $DATASTORE_LOCATION/$SYSTEM_DS_ID/$VM_ID. The system_dir stores
* disks for a running VM in the target host.
* @return the remote system directory for the VM
*/
const string& get_system_dir() const
{
return history->system_dir;
}
/**
* Returns the remote VM directory for the previous host. It maybe different
* if a system ds migration
* The hasPreviousHistory() function MUST be called before this one.
* @return the remote system directory for the VM
*/
const string & get_previous_system_dir() const
{
return previous_history->system_dir;
};
// ------------------------------------------------------------------------
// History
// ------------------------------------------------------------------------
/**
* Adds a new history record an writes it in the database.
*/
void add_history(
int hid,
int cid,
const string& hostname,
const string& vmm_mad,
const string& tm_mad,
int ds_id);
/**
* Duplicates the last history record. Only the host related fields are
* affected (i.e. no counter is copied nor initialized).
* @param reason explaining the new addition.
*/
void cp_history();
/**
* Duplicates the previous history record. Only the host related fields are
* affected (i.e. no counter is copied nor initialized).
* @param reason explaining the new addition.
*/
void cp_previous_history();
/**
* Checks if the VM has a valid history record. This function
* MUST be called before using any history related function.
* @return true if the VM has a record
*/
bool hasHistory() const
{
return (history!=0);
};
/**
* Checks if the VM has a valid previous history record. This function
* MUST be called before using any previous_history related function.
* @return true if the VM has a previous record
*/
bool hasPreviousHistory() const
{
return (previous_history!=0);
};
bool is_history_open() const
{
return (history != 0) && (history->etime == 0);
}
bool is_previous_history_open() const
{
return (previous_history != 0) && (previous_history->etime == 0);
}
/**
* Returns the VMM driver name for the current host. The hasHistory()
* function MUST be called before this one.
* @return the VMM mad name
*/
const string & get_vmm_mad() const
{
return history->vmm_mad_name;
};
/**
* Returns the VMM driver name for the previous host. The hasPreviousHistory()
* function MUST be called before this one.
* @return the VMM mad name
*/
const string & get_previous_vmm_mad() const
{
return previous_history->vmm_mad_name;
};
/**
* Returns the datastore ID of the system DS for the host. The hasHistory()
* function MUST be called before this one.
* @return the ds id
*/
int get_ds_id() const
{
return history->ds_id;
};
/**
* Returns the datastore ID of the system DS for the previous host.
* The hasPreviousHistory() function MUST be called before this one.
* @return the TM mad name
*/
int get_previous_ds_id() const
{
return previous_history->ds_id;
};
/**
* Returns the TM driver name for the current host. The hasHistory()
* function MUST be called before this one.
* @return the TM mad name
*/
const string & get_tm_mad() const
{
return history->tm_mad_name;
};
/**
* Returns the TM driver name for the previous host. The
* hasPreviousHistory() function MUST be called before this one.
* @return the TM mad name
*/
const string & get_previous_tm_mad() const
{
return previous_history->tm_mad_name;
};
/**
* Returns the transfer filename. The transfer file is in the form:
* $ONE_LOCATION/var/vms/$VM_ID/transfer.$SEQ
* or, in case that OpenNebula is installed in root
* /var/lib/one/vms/$VM_ID/transfer.$SEQ
* The hasHistory() function MUST be called before this one.
* @return the transfer filename
*/
const string & get_transfer_file() const
{
return history->transfer_file;
};
/**
* Returns the deployment filename. The deployment file is in the form:
* $ONE_LOCATION/var/vms/$VM_ID/deployment.$SEQ
* or, in case that OpenNebula is installed in root
* /var/lib/one/vms/$VM_ID/deployment.$SEQ
* The hasHistory() function MUST be called before this one.
* @return the deployment file path
*/
const string & get_deployment_file() const
{
return history->deployment_file;
};
/**
* Returns the context filename. The context file is in the form:
* $ONE_LOCATION/var/vms/$VM_ID/context.sh
* or, in case that OpenNebula is installed in root
* /var/lib/one/vms/$VM_ID/context.sh
* The hasHistory() function MUST be called before this one.
* @return the context file path
*/
const string & get_context_file() const
{
return history->context_file;
}
/**
* Returns the token filename. The token file is in the form:
* $ONE_LOCATION/var/vms/$VM_ID/token.txt
* or, in case that OpenNebula is installed in root
* /var/lib/one/vms/$VM_ID/token.txt
* The hasHistory() function MUST be called before this one.
* @return the token file path
*/
const string & get_token_file() const
{
return history->token_file;
}
/**
* Returns the remote deployment filename. The file is in the form:
* $DS_LOCATION/$SYSTEM_DS/$VM_ID/deployment.$SEQ
* The hasHistory() function MUST be called before this one.
* @return the deployment filename
*/
const string & get_remote_deployment_file() const
{
return history->rdeployment_file;
};
/**
* Returns the checkpoint filename for the current host. The checkpoint file
* is in the form:
* $DS_LOCATION/$SYSTEM_DS/$VM_ID/checkpoint
* The hasHistory() function MUST be called before this one.
* @return the checkpoint filename
*/
const string & get_checkpoint_file() const
{
return history->checkpoint_file;
};
/**
* Returns the checkpoint filename for the previous host.
* The hasPreviousHistory() function MUST be called before this one.
* @return the checkpoint filename
*/
const string & get_previous_checkpoint_file() const
{
return previous_history->checkpoint_file;
};
/**
* Returns the hostname for the current host. The hasHistory()
* function MUST be called before this one.
* @return the hostname
*/
const string & get_hostname() const
{
return history->hostname;
};
/**
* Returns if the host is a public cloud based on the system ds and tm_mad.
* The hasHistory() function MUST be called before this one.
* @return the hostname
*/
bool get_host_is_cloud() const
{
return ((history->ds_id == -1) && history->tm_mad_name.empty());
};
/**
* Updates the current hostname. The hasHistory()
* function MUST be called before this one.
* @param hostname New hostname
*/
void set_hostname(const string& hostname)
{
history->hostname = hostname;
};
/**
* Returns the hostname for the previous host. The hasPreviousHistory()
* function MUST be called before this one.
* @return the hostname
*/
const string & get_previous_hostname() const
{
return previous_history->hostname;
};
/**
* Returns the action that closed the current history record. The hasHistory()
* function MUST be called before this one.
* @return the action that closed the current history record
*/
const History::VMAction get_action() const
{
return history->action;
};
/**
* Returns the action that closed the history record in the previous host
* @return the action that closed the history record in the previous host
*/
const History::VMAction get_previous_action() const
{
return previous_history->action;
};
/**
* Get host id where the VM is or is going to execute. The hasHistory()
* function MUST be called before this one.
*/
int get_hid()
{
return history->hid;
}
/**
* Get host id where the VM was executing. The hasPreviousHistory()
* function MUST be called before this one.
*/
int get_previous_hid()
{
return previous_history->hid;
}
/**
* Get cluster id where the VM is or is going to execute. The hasHistory()
* function MUST be called before this one.
*/
int get_cid()
{
return history->cid;
}
/**
* Get cluster id where the VM was executing. The hasPreviousHistory()
* function MUST be called before this one.
*/
int get_previous_cid()
{
return previous_history->cid;
}
/**
* Sets start time of a VM.
* @param _stime time when the VM started
*/
void set_stime(time_t _stime)
{
history->stime=_stime;
};
/**
* Sets VM info (with monitoring info) in the history record
*/
void set_vm_info()
{
to_xml_extended(history->vm_info, 0);
};
/**
* Sets VM info (with monitoring info) in the previous history record
*/
void set_previous_vm_info()
{
to_xml_extended(previous_history->vm_info, 0);
};
/**
* Sets end time of a VM.
* @param _etime time when the VM finished
*/
void set_etime(time_t _etime)
{
history->etime=_etime;
};
/**
* Sets end time of a VM in the previous Host.
* @param _etime time when the VM finished
*/
void set_previous_etime(time_t _etime)
{
previous_history->etime=_etime;
};
/**
* Sets start time of VM prolog.
* @param _stime time when the prolog started
*/
void set_prolog_stime(time_t _stime)
{
history->prolog_stime=_stime;
};
/**
* Sets end time of VM prolog.
* @param _etime time when the prolog finished
*/
void set_prolog_etime(time_t _etime)
{
history->prolog_etime=_etime;
};
/**
* Sets start time of VM running state.
* @param _stime time when the running state started
*/
void set_running_stime(time_t _stime)
{
history->running_stime=_stime;
};
/**
* Gets the running start time for the VM
*/
time_t get_running_stime()
{
return history->running_stime;
}
/**
* Sets end time of VM running state.
* @param _etime time when the running state finished
*/
void set_running_etime(time_t _etime)
{
history->running_etime=_etime;
};
/**
* Sets end time of VM running state in the previous host.
* @param _etime time when the running state finished
*/
void set_previous_running_etime(time_t _etime)
{
previous_history->running_etime=_etime;
};
/**
* Sets start time of VM epilog.
* @param _stime time when the epilog started
*/
void set_epilog_stime(time_t _stime)
{
history->epilog_stime=_stime;
};
/**
* Sets end time of VM epilog.
* @param _etime time when the epilog finished
*/
void set_epilog_etime(time_t _etime)
{
history->epilog_etime=_etime;
};
/**
* Sets the action that closed the history record
* @param action that closed the history record
*/
void set_action(History::VMAction action, int uid, int gid, int req_id)
{
history->action = action;
history->uid = uid;
history->gid = gid;
history->req_id = req_id;
};
void set_internal_action(History::VMAction action)
{
history->action = action;
history->uid = -1;
history->gid = -1;
history->req_id = -1;
};
void clear_action()
{
history->action = History::NONE_ACTION;
history->uid = -1;
history->gid = -1;
history->req_id = -1;
}
void set_previous_action(History::VMAction action, int uid, int gid,int rid)
{
previous_history->action = action;
previous_history->uid = uid;
previous_history->gid = gid;
previous_history->req_id = rid;
};
// ------------------------------------------------------------------------
// Template & Object Representation
// ------------------------------------------------------------------------
/**
* Function to print the VirtualMachine object into a string in
* XML format
* @param xml the resulting XML string
* @return a reference to the generated string
*/
string& to_xml(string& xml) const
{
return to_xml_extended(xml, 1);
}
/**
* Function to print the VirtualMachine object into a string in
* XML format, with reduced information
* @param xml the resulting XML string
* @return a reference to the generated string
*/
string& to_xml_short(string& xml);
/**
* Function to print the VirtualMachine object into a string in
* XML format, with extended information (full history records)
* @param xml the resulting XML string
* @return a reference to the generated string
*/
string& to_xml_extended(string& xml) const
{
return to_xml_extended(xml, 2);
}
/**
* Rebuilds the object from an xml formatted string
* @param xml_str The xml-formatted string
*
* @return 0 on success, -1 otherwise
*/
int from_xml(const string &xml_str);
/**
* Factory method for virtual machine templates
*/
Template * get_new_template() const
{
return new VirtualMachineTemplate;
}
/**
* Returns a copy of the VirtualMachineTemplate
* @return A copy of the VirtualMachineTemplate
*/
VirtualMachineTemplate * clone_template() const
{
return new VirtualMachineTemplate(
*(static_cast<VirtualMachineTemplate *>(obj_template)));
};
/**
* This function replaces the *user template*.
* @param tmpl_str new contents
* @param keep_restricted If true, the restricted attributes of the
* current template will override the new template
* @param error string describing the error if any
* @return 0 on success
*/
int replace_template(const string& tmpl_str, bool keep_restricted,
string& error);
/**
* Append new attributes to the *user template*.
* @param tmpl_str new contents
* @param keep_restricted If true, the restricted attributes of the
* current template will override the new template
* @param error string describing the error if any
* @return 0 on success
*/
int append_template(const string& tmpl_str, bool keep_restricted,
string& error);
/**
* This function gets an attribute from the user template
* @param name of the attribute
* @param value of the attribute
*/
void get_user_template_attribute(const char * name, string& value) const
{
user_obj_template->get(name,value);
}
/**
* Sets an error message with timestamp in the template
* @param message Message string
*/
void set_template_error_message(const string& message);
/**
* Sets an error message with timestamp in the template
* @param name of the error attribute
* @param message Message string
*/
void set_template_error_message(const string& name, const string& message);
/**
* Deletes the error message from the template
*/
void clear_template_error_message();
/**
* Sets an error message with timestamp in the template (ERROR_MONITOR)
* @param message Message string
*/
void set_template_monitor_error(const string& message);
/**
* Deletes the error message from the template (ERROR_MONITOR)
* @param message Message string
*/
void clear_template_monitor_error();
// ------------------------------------------------------------------------
// Timers & Requirements
// ------------------------------------------------------------------------
/**
* Gets time from last information polling.
* @return time of last poll (epoch) or 0 if never polled
*/
time_t get_last_poll() const
{
return last_poll;
};
/**
* Sets time of last information polling.
* @param poll time in epoch, normally time(0)
*/
void set_last_poll(time_t poll)
{
last_poll = poll;
};
/**
* Get the VM physical requirements for the host.
* @param cpu
* @param memory
* @param disk
* @param pci_dev
*/
void get_requirements(int& cpu, int& memory, int& disk,
vector<VectorAttribute *>& pci_dev);
/**
* Adds automatic placement requirements: Datastore and Cluster
* @param cluster_ids set of viable clusters for this VM
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int automatic_requirements(set<int>& cluster_ids, string& error_str)
{
std::set<int> datastore_ids;
return automatic_requirements(cluster_ids, datastore_ids, error_str);
}
/**
* Checks if the resize parameters are valid
* @param cpu New CPU. 0 means unchanged.
* @param memory New MEMORY. 0 means unchanged.
* @param vcpu New VCPU. 0 means unchanged.
* @param error_str Error reason, if any
*
* @return 0 on success
*/
int check_resize(float cpu, long int memory, int vcpu, string& error_str);
/**
* Resize the VM capacity
* @param cpu
* @param memory
* @param vcpu
* @param error_str Error reason, if any
*
* @return 0 on success
*/
int resize(float cpu, long int memory, int vcpu, string& error_str);
// ------------------------------------------------------------------------
// Virtual Machine Disks
// ------------------------------------------------------------------------
/**
* Releases all disk images taken by this Virtual Machine
* @param quotas disk space to free from image datastores
* @param check_state to update image state based on VM state
*/
void release_disk_images(vector<Template *>& quotas, bool check_state);
/**
* @return reference to the VirtualMachine disks
*/
VirtualMachineDisks& get_disks()
{
return disks;
}
/**
* @return a pointer to the given disk
*/
VirtualMachineDisk * get_disk(int disk_id) const
{
return disks.get_disk(disk_id);
}
// ------------------------------------------------------------------------
// Virtual Machine Nics
// ------------------------------------------------------------------------
/**
* Get a NIC by its id
* @param nic_id of the NIC
*/
VirtualMachineNic * get_nic(int nic_id) const
{
return nics.get_nic(nic_id);
}
/**
* Returns a set of the security group IDs in use in this VM.
* @param sgs a set of security group IDs
*/
void get_security_groups(set<int>& sgs)
{
nics.get_security_groups(sgs);
}
/**
* Releases all network leases taken by this Virtual Machine
*/
void release_network_leases()
{
nics.release_network_leases(oid);
}
/**
* Remove the rules associated to the given security group rules
* @param sgid the security group ID
*/
void remove_security_group(int sgid);
// ------------------------------------------------------------------------
// Virtual Machine Groups
// ------------------------------------------------------------------------
/**
* Remove this VM from its role and VM group if any
*/
void release_vmgroup();
// ------------------------------------------------------------------------
// Imported VM interface
// ------------------------------------------------------------------------
/**
* Check if the VM is imported
*/
bool is_imported() const;
/**
* Return state of the VM right before import
*/
string get_import_state();
/**
* Checks if the current VM MAD supports the given action for imported VMs
* @param action VM action to check
* @return true if the current VM MAD supports the given action for imported VMs
*/
bool is_imported_action_supported(History::VMAction action) const;
// ------------------------------------------------------------------------
// Virtual Router related functions
// ------------------------------------------------------------------------
/**
* Returns the Virtual Router ID if this VM is a VR, or -1
* @return VR ID or -1
*/
int get_vrouter_id();
/**
* Returns true if this VM is a Virtual Router
* @return true if this VM is a Virtual Router
*/
bool is_vrouter();
// ------------------------------------------------------------------------
// Context related functions
// ------------------------------------------------------------------------
/**
* Writes the context file for this VM, and gets the paths to be included
* in the context block device (CBD)
* @param files space separated list of paths to be included in the CBD
* @param disk_id CONTEXT/DISK_ID attribute value
* @param password Password to encrypt the token, if it is set
* @param only_auto boolean to generate context only for vnets
* with NETWORK_MODE = auto
* @return -1 in case of error, 0 if the VM has no context, 1 on success
*/
int generate_context(string &files, int &disk_id, const string& password);
/**
* Returns the CREATED_BY template attribute, or the uid if it does not exist
* @return uid
*/
int get_created_by_uid() const;
/**
* Updates the configuration attributes based on a template, the state of
* the virtual machine is checked to assure operation consistency
* @param tmpl with the new attributes include: OS, RAW, FEAUTRES,
* CONTEXT and GRAPHICS.
* @param err description if any
*
* @return 0 on success
*/
int updateconf(VirtualMachineTemplate& tmpl, string &err);
/**
* Get the configuration attributes used in an updateconf API call.
* @param err description if any
* @return template with the attributes
*/
VirtualMachineTemplate * get_updateconf_template();
// -------------------------------------------------------------------------
// "Save as" Disk related functions (save_as hot)
// -------------------------------------------------------------------------
/**
* Mark the disk that is going to be "save as"
* @param disk_id of the VM
* @param snap_id of the disk to save, -1 to select the active snapshot
* @param img_id The image id used by the disk
* @param size The disk size. This may be different to the original
* image size
* @param err_str describing the error if any
* @return -1 if the image cannot saveas, 0 on success
*/
int set_saveas_disk(int disk_id, int snap_id, int &img_id, long long &size,
string& err_str)
{
return disks.set_saveas(disk_id, snap_id, img_id, size, err_str);
}
/**
* Set save attributes for the disk
* @param disk_id Index of the disk to save
* @param source to save the disk
* @param img_id ID of the image this disk will be saved to
*/
int set_saveas_disk(int disk_id, const string& source, int img_id)
{
if (lcm_state != HOTPLUG_SAVEAS && lcm_state != HOTPLUG_SAVEAS_SUSPENDED
&& lcm_state != HOTPLUG_SAVEAS_POWEROFF )
{
return -1;
}
return disks.set_saveas(disk_id, source, img_id);
}
/**
* Sets the corresponding state to save the disk.
* @return 0 if the VM can be saved
*/
int set_saveas_state();
/**
* Clears the save state, moving the VM to the original state.
* @return 0 if the VM was in an saveas state
*/
int clear_saveas_state();
/**
* Clears the SAVE_AS_* attributes of the disk being saved as
* @return the ID of the image this disk will be saved to or -1 if it
* is not found.
*/
int clear_saveas_disk()
{
return disks.clear_saveas();
}
/**
* Get the original image id of the disk. It also checks that the disk can
* be saved_as.
* @param disk_id Index of the disk to save
* @param source of the image to save the disk to
* @param image_id of the image to save the disk to
* @param tm_mad in use by the disk
* @param ds_id of the datastore in use by the disk
* @return -1 if failure
*/
int get_saveas_disk(int& disk_id, string& source, int& image_id,
string& snap_id, string& tm_mad, string& ds_id)
{
return disks.get_saveas_info(disk_id, source, image_id, snap_id,
tm_mad, ds_id);
}
// ------------------------------------------------------------------------
// Authorization related functions
// ------------------------------------------------------------------------
/**
* Sets an authorization request for a VirtualMachine template based on
* the images and networks used
* @param uid for template owner
* @param ar the AuthRequest object
* @param tmpl the virtual machine template
* @param
* lock for check if the resource is lock or not
*/
static void set_auth_request(int uid, AuthRequest& ar,
VirtualMachineTemplate *tmpl, bool check_lock);
// -------------------------------------------------------------------------
// Attach Disk Interface
// -------------------------------------------------------------------------
/**
* Generate and attach a new DISK attribute to the VM. This method check
* that the DISK is compatible with the VM cluster allocation and disk target
* usage.
* @param tmpl Template containing a single DISK vector attribute.
* @param error_str describes the error
*
* @return 0 if success
*/
int set_up_attach_disk(VirtualMachineTemplate * tmpl, string& error_str);
/**
* Returns the disk that is waiting for an attachment action
*
* @return the disk waiting for an attachment action, or 0
*/
VirtualMachineDisk * get_attach_disk()
{
return disks.get_attach();
}
/**
* Cleans the ATTACH = YES attribute from the disks
*/
void clear_attach_disk()
{
disks.clear_attach();
}
/**
* Deletes the DISK that was in the process of being attached
*
* @return the DISK or 0 if no disk was deleted
*/
VirtualMachineDisk * delete_attach_disk()
{
VirtualMachineDisk * disk = disks.delete_attach();
if (disk == 0)
{
return 0;
}
obj_template->remove(disk->vector_attribute());
return disk;
}
/**
* Sets the attach attribute to the given disk
* @param disk_id of the DISK
* @return 0 if the disk_id was found -1 otherwise
*/
int set_attach_disk(int disk_id)
{
return disks.set_attach(disk_id);
}
// -------------------------------------------------------------------------
// Resize Disk Interface
// -------------------------------------------------------------------------
/**
* Returns the disk that is going to be resized
*
* @return the disk or 0 if not found
*/
VirtualMachineDisk * get_resize_disk()
{
return disks.get_resize();
}
/**
* Cleans the RESIZE = YES attribute from the disks
* @param restore if true the previous disk size is restored
*/
VirtualMachineDisk * clear_resize_disk(bool restore)
{
VirtualMachineDisk * disk = disks.get_resize();
if ( disk == 0 )
{
return 0;
}
disk->clear_resize(restore);
return disk;
}
/**
* Sets the resize attribute to the given disk
* @param disk_id of the DISK
* @return 0 if the disk_id was found -1 otherwise
*/
int set_resize_disk(int disk_id);
/**
* Prepares a disk to be resized.
* @param disk_id of disk
* @param size new size for the disk (needs to be greater than current)
* @param error
*
* @return 0 on success
*/
int set_up_resize_disk(int disk_id, long size, string& error)
{
return disks.set_up_resize(disk_id, size, error);
}
// ------------------------------------------------------------------------
// NIC Hotplug related functions
// ------------------------------------------------------------------------
/**
* Generate and attach a new NIC attribute to the VM. This method check
* that the NIC is compatible with the VM cluster allocation and fills SG
* information.
* @param tmpl Template containing a single NIC vector attribute.
* @param error_str error reason, if any
*
* @return 0 on success, -1 otherwise
*/
int set_up_attach_nic(VirtualMachineTemplate *tmpl, string& error_str);
/**
* Sets the attach attribute to the given NIC
* @param nic_id of the NIC
* @return 0 if the nic_id was found, -1 otherwise
*/
int set_detach_nic(int nic_id);
/**
* Cleans the ATTACH = YES attribute from the NICs
*/
void clear_attach_nic()
{
nics.clear_attach();
}
/**
* Deletes the NIC that was in the process of being attached/detached
*
* @return the deleted NIC or 0 if none was deleted
*/
VirtualMachineNic * delete_attach_nic()
{
VirtualMachineNic * nic = nics.delete_attach();
if (nic == 0)
{
return 0;
}
obj_template->remove(nic->vector_attribute());
return nic;
}
/**
* Deletes the alias of the NIC that was in the process of being attached/detached
*/
void delete_attach_alias(VirtualMachineNic *nic)
{
std::set<int> a_ids;
one_util::split_unique(nic->vector_value("ALIAS_IDS"), ',', a_ids);
for(std::set<int>::iterator it = a_ids.begin(); it != a_ids.end(); it++)
{
VirtualMachineNic * nic_a = nics.delete_nic(*it);
if ( nic_a != 0)
{
obj_template->remove(nic_a->vector_attribute());
}
}
}
// ------------------------------------------------------------------------
// Disk Snapshot related functions
// ------------------------------------------------------------------------
/**
* Return the snapshot list for the disk
* @param disk_id of the disk
* @param error if any
* @return pointer to Snapshots or 0 if not found
*/
const Snapshots * get_disk_snapshots(int did, string& err) const
{
return disks.get_snapshots(did, err);
}
/**
* Creates a new snapshot of the given disk
* @param disk_id of the disk
* @param name a description for this snapshot
* @param error if any
* @return the id of the new snapshot or -1 if error
*/
int new_disk_snapshot(int disk_id, const string& name, string& error)
{
return disks.create_snapshot(disk_id, name, error);
}
/**
* Sets the snap_id as active, the VM will boot from it next time
* @param disk_id of the disk
* @param snap_id of the snapshot
* @param error if any
* @param revert true if the cause of changing the active snapshot
* is because a revert
* @return -1 if error
*/
int revert_disk_snapshot(int disk_id, int snap_id, bool revert)
{
return disks.revert_snapshot(disk_id, snap_id, revert);
}
/**
* Deletes the snap_id from the list
* @param disk_id of the disk
* @param snap_id of the snapshot
* @param ds_quotas template with snapshot usage for the DS quotas
* @param vm_quotas template with snapshot usage for the VM quotas
* @param io delete ds quotas from image owners
* @param vo delete ds quotas from vm owners
*/
void delete_disk_snapshot(int disk_id, int snap_id, Template **ds_quotas,
Template **vm_quotas, bool& io, bool& vo)
{
disks.delete_snapshot(disk_id, snap_id, ds_quotas, vm_quotas, io, vo);
}
/**
* Renames the snap_id from the list
* @param disk_id of the disk
* @param snap_id of the snapshot
* @param new_name of the snapshot
* @return 0 on success
*/
int rename_disk_snapshot(int disk_id, int snap_id, const string& new_name,
string& error_str)
{
return disks.rename_snapshot(disk_id, snap_id, new_name, error_str);
}
/**
* Deletes all the disk snapshots for non-persistent disks and for persistent
* disks in no shared system ds.
* @param vm_quotas The SYSTEM_DISK_SIZE freed by the deleted snapshots
* @param ds_quotas The DS SIZE freed from image datastores.
*/
void delete_non_persistent_disk_snapshots(Template **vm_quotas,
vector<Template *>& ds_quotas)
{
disks.delete_non_persistent_snapshots(vm_quotas, ds_quotas);
}
/**
* Get information about the disk to take the snapshot from
* @param ds_id id of the datastore
* @param tm_mad used by the datastore
* @param disk_id of the disk
* @param snap_id of the snapshot
*/
int get_snapshot_disk(int& ds_id, string& tm_mad, int& disk_id,
int& snap_id)
{
return disks.get_active_snapshot(ds_id, tm_mad, disk_id, snap_id);
}
/**
* Unset the current disk being snapshotted (reverted...)
*/
void clear_snapshot_disk()
{
disks.clear_active_snapshot();
}
/**
* Set the disk as being snapshotted (reverted...)
* @param disk_id of the disk
* @param snap_id of the target snap_id
*/
int set_snapshot_disk(int disk_id, int snap_id)
{
return disks.set_active_snapshot(disk_id, snap_id);
}
// ------------------------------------------------------------------------
// System Snapshot related functions
// ------------------------------------------------------------------------
/**
* Creates a new Snapshot attribute, and sets it to ACTIVE=YES
*
* @param name for the new Snapshot. If it is empty, the generated name
* will be placed in this param
* @param snap_id Id of the new snapshot
*
* @return 0 on success
*/
int new_snapshot(string& name, int& snap_id);
/**
* Sets the given Snapshot as ACTIVE=YES
*
* @param snap_id the snapshow ID
*
* @return 0 on success
*/
int set_revert_snapshot(int snap_id);
int set_delete_snapshot(int snap_id);
/**
* @return the on-going ACTION associated to the ACTIVE snapshot
*/
string get_snapshot_action();
/**
* Replaces HYPERVISOR_ID for the active SNAPSHOT
*
* @param hypervisor_id Id returned by the hypervisor for the newly
* created snapshot. The no hypervisor_id version uses the snap_id.
*/
void update_snapshot_id(const string& hypervisor_id);
void update_snapshot_id();
/**
* Cleans the ACTIVE = YES attribute from the snapshots
*/
void clear_active_snapshot();
/**
* Deletes the SNAPSHOT that was in the process of being created
*/
void delete_active_snapshot();
/**
* Deletes all SNAPSHOT attributes
*/
void delete_snapshots();
// ------------------------------------------------------------------------
// Cloning state related functions
// ------------------------------------------------------------------------
/**
* Returns true if any of the disks is waiting for an image in LOCKED state
* @return true if cloning
*/
bool has_cloning_disks()
{
return disks.has_cloning();
}
/**
* Returns the image IDs for the disks waiting for the LOCKED state to finish
* @param ids image ID set
*/
void get_cloning_image_ids(set<int>& ids)
{
disks.get_cloning_image_ids(ids);
}
/**
* Clears the flag for the disks waiting for the given image
*/
void clear_cloning_image_id(int image_id, const string& source)
{
disks.clear_cloning_image_id(image_id, source);
}
/**
* Get network leases with NETWORK_MODE = auto for this Virtual Machine
* @pram tmpl with the scheduling results for the auto NICs
* @param estr description if any
* @return 0 if success
*/
int get_auto_network_leases(VirtualMachineTemplate * tmpl, string &estr);
/**
* Check if a tm_mad is valid for the Virtual Machine Disks and set
* clone_target and ln_target
* @param tm_mad is the tm_mad for system datastore chosen
*/
int check_tm_mad_disks(const string& tm_mad, string& error);
private:
// -------------------------------------------------------------------------
// Friends
// -------------------------------------------------------------------------
friend class VirtualMachinePool;
// *************************************************************************
// Virtual Machine Attributes
// *************************************************************************
// -------------------------------------------------------------------------
// VM Scheduling & Managing Information
// -------------------------------------------------------------------------
/**
* Last time (in epoch) that the VM was polled to get its status
*/
time_t last_poll;
// -------------------------------------------------------------------------
// Virtual Machine Description
// -------------------------------------------------------------------------
/**
* The state of the virtual machine.
*/
VmState state;
/**
* Previous state og the virtual machine, to trigger state hooks
*/
VmState prev_state;
/**
* The state of the virtual machine (in the Life-cycle Manager).
*/
LcmState lcm_state;
/**
* Previous state og the virtual machine, to trigger state hooks
*/
LcmState prev_lcm_state;
/**
* Marks the VM as to be re-scheduled
*/
int resched;
/**
* Start time, the VM enter the nebula system (in epoch)
*/
time_t stime;
/**
* Exit time, the VM leave the nebula system (in epoch)
*/
time_t etime;
/**
* Deployment specific identification string, as returned by the VM driver
*/
string deploy_id;
/**
* Memory in MB used by the VM
*/
long int memory;
/**
* CPU usage (percent)
*/
int cpu;
/**
* Network usage, transmitted bytes
*/
long long net_tx;
/**
* Network usage, received bytes
*/
long long net_rx;
/**
* Network usage, received bytes
*/
long long disk_actual;
/**
* Network usage, received bytes
*/
long long disk_virtual;
/**
* History record, for the current host
*/
History * history;
/**
* History record, for the previous host
*/
History * previous_history;
/**
* Complete set of history records for the VM
*/
vector<History *> history_records;
/**
* VirtualMachine disks
*/
VirtualMachineDisks disks;
/**
* VirtualMachine nics
*/
VirtualMachineNics nics;
/**
* User template to store custom metadata. This template can be updated
*/
VirtualMachineTemplate * user_obj_template;
/**
* Monitoring information for the VM
*/
VirtualMachineMonitorInfo monitoring;
/**
* Log class for the virtual machine, it writes log messages in
* $ONE_LOCATION/var/$VID/vm.log
* or, in case that OpenNebula is installed in root
* /var/log/one/$VM_ID.log
* For the syslog it will use the predefined /var/log/ locations
*/
Log * _log;
// *************************************************************************
// DataBase implementation (Private)
// *************************************************************************
/**
* Bootstraps the database table(s) associated to the VirtualMachine
* @return 0 on success
*/
static int bootstrap(SqlDB * db);
/**
* Callback function to unmarshall a VirtualMachine object
* (VirtualMachine::select)
* @param num the number of columns read from the DB
* @param names the column names
* @param vaues the column values
* @return 0 on success
*/
int select_cb(void *nil, int num, char **names, char ** values);
/**
* Execute an INSERT or REPLACE Sql query.
* @param db The SQL DB
* @param replace Execute an INSERT or a REPLACE
* @param error_str Returns the error reason, if any
* @return 0 one success
*/
int insert_replace(SqlDB *db, bool replace, string& error_str);
/**
* Updates the VM history record
* @param db pointer to the db
* @return 0 on success
*/
int update_history(SqlDB * db)
{
if ( history != 0 )
{
return history->update(db);
}
else
return -1;
};
/**
* Updates the previous history record
* @param db pointer to the db
* @return 0 on success
*/
int update_previous_history(SqlDB * db)
{
if ( previous_history != 0 )
{
return previous_history->update(db);
}
else
return -1;
};
/**
* Inserts the last monitoring, and deletes old monitoring entries.
*
* @param db pointer to the db
* @return 0 on success
*/
int update_monitoring(SqlDB * db);
/**
* Function that renders the VM in XML format optinally including
* extended information (all history records)
* @param xml the resulting XML string
* @param n_history Number of history records to include:
* 0: none
* 1: the last one
* 2: all
* @return a reference to the generated string
*/
string& to_xml_extended(string& xml, int n_history) const;
// -------------------------------------------------------------------------
// Attribute Parser
// -------------------------------------------------------------------------
/**
* Attributes not allowed in NIC_DEFAULT to avoid authorization bypass and
* inconsistencies for NIC_DEFAULTS
*/
static const char* NO_NIC_DEFAULTS[];
static const int NUM_NO_NIC_DEFAULTS;
/**
* Known Virtual Router attributes, to be moved from the user template
* to the template
*/
static const char* VROUTER_ATTRIBUTES[];
static const int NUM_VROUTER_ATTRIBUTES;
/**
* Parse a string and substitute variables (e.g. $NAME) using the VM
* template values:
* @param attribute, the string to be parsed
* @param parsed, the resulting parsed string
* @param error description in case of failure
* @return 0 on success.
*/
int parse_template_attribute(const string& attribute,
string& parsed,
string& error);
/**
* Parse a file string variable (i.e. $FILE) using the FILE_DS datastores.
* It should be used for OS/DS_KERNEL, OS/DS_INITRD, CONTEXT/DS_FILES.
* @param attribute the string to be parsed
* @param img_ids ids of the FILE images in the attribute
* @param error description in case of failure
* @return 0 on success.
*/
int parse_file_attribute(string attribute,
vector<int>& img_ids,
string& error);
/**
* Generates image attributes (DS_ID, TM_MAD, SOURCE...) for KERNEL and
* INITRD files.
* @param os attribute of the VM template
* @param base_name of the attribute "KERNEL", or "INITRD"
* @param base_type of the image attribute KERNEL, RAMDISK
* @param error_str Returns the error reason, if any
* @return 0 on succes
*/
int set_os_file(VectorAttribute* os, const string& base_name,
Image::ImageType base_type, string& error_str);
/**
* Parse the "OS" attribute of the template by substituting
* $FILE variables
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int parse_os(string& error_str);
/**
* Parse the "CPU_MODEL" attribute of the template
* @return 0 on success
*/
int parse_cpu_model(Template * tmpl);
/**
* Parse the "NIC_DEFAULT" attribute
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int parse_defaults(string& error_str, Template * tmpl);
/**
* Parse virtual router related attributes
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int parse_vrouter(string& error_str, Template * tmpl);
/**
* Parse the "PCI" attribute of the template and checks mandatory attributes
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int parse_pci(string& error_str, Template * tmpl);
/**
* Parse the "SCHED_REQUIREMENTS" attribute of the template by substituting
* $VARIABLE, $VARIABLE[ATTR] and $VARIABLE[ATTR, ATTR = VALUE]
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int parse_requirements(string& error_str);
/**
* Parse the "GRAPHICS" attribute and generates a default PORT if not
* defined
*/
int parse_graphics(string& error_str, Template * tmpl);
/**
* Searches the meaningful attributes and moves them from the user template
* to the internal template
*/
void parse_well_known_attributes();
// -------------------------------------------------------------------------
// Context related functions
// -------------------------------------------------------------------------
/**
* Generate the NETWORK related CONTEXT setions, i.e. ETH_*. This function
* is invoked when ever the context is prepared for the VM to capture
* netowrking updates.
* @param context attribute of the VM
* @param error string if any
* @param only_auto boolean to generate context only for vnets
* with NETWORK_MODE = auto
* @return 0 on success
*/
int generate_network_context(VectorAttribute * context, string& error,
bool only_auto);
/**
* Deletes the NETWORK related CONTEXT section for the given nic, i.e.
* ETH_<id>
* @param nicid the id of the NIC
*/
void clear_nic_context(int nicid);
/**
* Deletes the NETWORK ALIAS related CONTEXT section for the given nic, i.e.
* ETH_<id>_ALIAS<aliasid>
* @param nicid the id of the NIC
* @param aliasid the idx of the ALIAS
*/
void clear_nic_alias_context(int nicid, int aliasidx);
/**
* Generate the PCI related CONTEXT setions, i.e. PCI_*. This function
* is also adds basic network attributes for pass-through NICs
* @param context attribute of the VM
* @return true if the net context was generated.
*/
bool generate_pci_context(VectorAttribute * context);
/**
* Generate the ONE_GATE token & url
* @param context attribute of the VM
* @param error_str describing the error
* @return 0 if success
*/
int generate_token_context(VectorAttribute * context, string& error_str);
/**
* Parse the "CONTEXT" attribute of the template by substituting
* $VARIABLE, $VARIABLE[ATTR] and $VARIABLE[ATTR, ATTR = VALUE]
* @param error_str Returns the error reason, if any
* @param only_auto boolean to parse only the context for vnets
* with NETWORK_MODE = auto
* @return 0 on success
*/
int parse_context(string& error_str, bool all_nics);
/**
* Parses the current contents of the context vector attribute, without
* adding any attributes. Substitutes $VARIABLE, $VARIABLE[ATTR] and
* $VARIABLE[ATTR, ATTR = VALUE]
* @param pointer to the context attribute. It will be updated to point
* to the new parsed CONTEXT
* @param error_str description in case of error
* @return 0 on success
*/
int parse_context_variables(VectorAttribute ** context, string& error_str);
// -------------------------------------------------------------------------
// Management helpers: NIC, DISK and VMGROUP
// -------------------------------------------------------------------------
/**
* Get network leases (no auto NICs, NETWORK_MODE != auto) for this VM
* @return 0 if success
*/
int get_network_leases(string &error_str);
/**
* Get all disk images for this Virtual Machine
* @param error_str Returns the error reason, if any
* @return 0 if success
*/
int get_disk_images(string &error_str);
/**
* Adds the VM to the VM group if needed
* @param error_str Returns the error reason, if any
* @return 0 if success
*/
int get_vmgroup(string& error);
/**
* Adds automatic placement requirements: Datastore and Cluster
* @param cluster_ids set of viable clusters for this VM
* @param ds_ids set of viable datastores for this VM
* @param error_str Returns the error reason, if any
* @return 0 on success
*/
int automatic_requirements(set<int>& cluster_ids, set<int>& ds_ids,
string& error_str);
// ------------------------------------------------------------------------
// Public cloud templates related functions
// ------------------------------------------------------------------------
/**
* Gets the list of public clouds defined in this VM.
* @param clouds list to store the cloud hypervisors in the template
* @return the number of public cloud hypervisors
*/
int get_public_clouds(set<string> &clouds) const
{
get_public_clouds("PUBLIC_CLOUD", clouds);
return clouds.size();
};
/**
* Same as above but specifies the attribute name to handle old versions
* @param name Attribute name
* @param clouds list to store the cloud hypervisors in the template
*/
void get_public_clouds(const string& name, set<string> &clouds) const;
/**
* Parse the public cloud attributes and subsititue variable definition
* for the values in the template, i.e.:
* INSTANCE_TYPE="m1-small"
*
* PUBLIC_CLOUD=[ TYPE="ec2", INSTANCE="$INSTANCE_TYPE"...
*
* @param error description if any
* @return -1 in case of error
*/
int parse_public_clouds(string& error)
{
int rc = parse_public_clouds("PUBLIC_CLOUD", error);
if (rc == 0)
{
rc = parse_public_clouds("EC2", error);
}
return rc;
};
/**
* Same as above but specifies the attribute name to handle old versions
*/
int parse_public_clouds(const char *name, string& error);
/**
* This method removes sched_action DONE/MESSAGE attributes
* @param error_str with error description
* @return -1 in case of error 0 otherwise
*/
int parse_sched_action(string& error_str);
protected:
//**************************************************************************
// Constructor
//**************************************************************************
VirtualMachine(int id,
int uid,
int gid,
const string& uname,
const string& gname,
int umask,
VirtualMachineTemplate * _vm_template);
virtual ~VirtualMachine();
// *************************************************************************
// DataBase implementation
// *************************************************************************
static const char * table;
static const char * db_names;
static const char * db_bootstrap;
static const char * monit_table;
static const char * monit_db_names;
static const char * monit_db_bootstrap;
static const char * showback_table;
static const char * showback_db_names;
static const char * showback_db_bootstrap;
/**
* Reads the Virtual Machine (identified with its OID) from the database.
* @param db pointer to the db
* @return 0 on success
*/
int select(SqlDB * db);
/**
* Writes the Virtual Machine and its associated template in the database.
* @param db pointer to the db
* @return 0 on success
*/
int insert(SqlDB * db, string& error_str);
/**
* Writes/updates the Virtual Machine data fields in the database.
* @param db pointer to the db
* @return 0 on success
*/
int update(SqlDB * db)
{
string error_str;
return insert_replace(db, true, error_str);
}
/**
* Deletes a VM from the database and all its associated information
* @param db pointer to the db
* @return -1
*/
int drop(SqlDB * db)
{
NebulaLog::log("ONE",Log::ERROR, "VM Drop not implemented!");
return -1;
}
};
#endif /*VIRTUAL_MACHINE_H_*/
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