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Code Issues Releases Wiki Activity

Support for modifications to a base Qemu VM (not a linked clone).

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This commit is contained in:
grossmj 2015-10-18 19:19:27 -06:00
parent 2fbc391319
commit ce4727e51a
3 changed files with 60 additions and 41 deletions
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1
gns3server/handlers/api/qemu_handler.py
View File

@ -58,6 +58,7 @@ class QEMUHandler:
vm = yield from qemu.create_vm(request.json.pop("name"),
request.match_info["project_id"],
request.json.pop("vm_id", None),
linked_clone=request.json.get("linked_clone", True),
qemu_path=request.json.pop("qemu_path", None),
console=request.json.pop("console", None),
console_type=request.json.pop("console_type", "telnet"),

96
gns3server/modules/qemu/qemu_vm.py
View File

@ -61,12 +61,13 @@ class QemuVM(BaseVM):
:param console: TCP console port
"""
def __init__(self, name, vm_id, project, manager, qemu_path=None, console=None, console_type="telnet", platform=None):
def __init__(self, name, vm_id, project, manager, linked_clone=True, qemu_path=None, console=None, console_type="telnet", platform=None):
super().__init__(name, vm_id, project, manager, console=console, console_type=console_type)
server_config = manager.config.get_section_config("Server")
self._host = server_config.get("host", "127.0.0.1")
self._monitor_host = server_config.get("monitor_host", "127.0.0.1")
self._linked_clone = linked_clone
self._command = []
self._process = None
self._cpulimit_process = None
@ -1226,16 +1227,20 @@ class QemuVM(BaseVM):
raise QemuError("hda disk image '{}' linked to '{}' is not accessible".format(self._hda_disk_image, os.path.realpath(self._hda_disk_image)))
else:
raise QemuError("hda disk image '{}' is not accessible".format(self._hda_disk_image))
hda_disk = os.path.join(self.working_dir, "hda_disk.qcow2")
if not os.path.exists(hda_disk):
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hda_disk_image),
"-f", "qcow2", hda_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hda disk image {}".format(e))
if self._linked_clone:
hda_disk = os.path.join(self.working_dir, "hda_disk.qcow2")
if not os.path.exists(hda_disk):
# create the disk
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hda_disk_image),
"-f", "qcow2", hda_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hda disk image {}".format(e))
else:
hda_disk = self._hda_disk_image
options.extend(["-drive", 'file={},if={},index=0,media=disk'.format(hda_disk, self.hda_disk_interface)])
if self._hdb_disk_image:
@ -1244,16 +1249,19 @@ class QemuVM(BaseVM):
raise QemuError("hdb disk image '{}' linked to '{}' is not accessible".format(self._hdb_disk_image, os.path.realpath(self._hdb_disk_image)))
else:
raise QemuError("hdb disk image '{}' is not accessible".format(self._hdb_disk_image))
hdb_disk = os.path.join(self.working_dir, "hdb_disk.qcow2")
if not os.path.exists(hdb_disk):
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hdb_disk_image),
"-f", "qcow2", hdb_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hdb disk image {}".format(e))
if self._linked_clone:
hdb_disk = os.path.join(self.working_dir, "hdb_disk.qcow2")
if not os.path.exists(hdb_disk):
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hdb_disk_image),
"-f", "qcow2", hdb_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hdb disk image {}".format(e))
else:
hdb_disk = self._hdb_disk_image
options.extend(["-drive", 'file={},if={},index=1,media=disk'.format(hdb_disk, self.hdb_disk_interface)])
if self._hdc_disk_image:
@ -1262,16 +1270,19 @@ class QemuVM(BaseVM):
raise QemuError("hdc disk image '{}' linked to '{}' is not accessible".format(self._hdc_disk_image, os.path.realpath(self._hdc_disk_image)))
else:
raise QemuError("hdc disk image '{}' is not accessible".format(self._hdc_disk_image))
hdc_disk = os.path.join(self.working_dir, "hdc_disk.qcow2")
if not os.path.exists(hdc_disk):
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hdc_disk_image),
"-f", "qcow2", hdc_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hdc disk image {}".format(e))
if self._linked_clone:
hdc_disk = os.path.join(self.working_dir, "hdc_disk.qcow2")
if not os.path.exists(hdc_disk):
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hdc_disk_image),
"-f", "qcow2", hdc_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hdc disk image {}".format(e))
else:
hdc_disk = self._hdc_disk_image
options.extend(["-drive", 'file={},if={},index=2,media=disk'.format(hdc_disk, self.hdc_disk_interface)])
if self._hdd_disk_image:
@ -1280,16 +1291,19 @@ class QemuVM(BaseVM):
raise QemuError("hdd disk image '{}' linked to '{}' is not accessible".format(self._hdd_disk_image, os.path.realpath(self._hdd_disk_image)))
else:
raise QemuError("hdd disk image '{}' is not accessible".format(self._hdd_disk_image))
hdd_disk = os.path.join(self.working_dir, "hdd_disk.qcow2")
if not os.path.exists(hdd_disk):
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hdd_disk_image),
"-f", "qcow2", hdd_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hdd disk image {}".format(e))
if self._linked_clone:
hdd_disk = os.path.join(self.working_dir, "hdd_disk.qcow2")
if not os.path.exists(hdd_disk):
try:
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
"backing_file={}".format(self._hdd_disk_image),
"-f", "qcow2", hdd_disk)
retcode = yield from process.wait()
log.info("{} returned with {}".format(qemu_img_path, retcode))
except (OSError, subprocess.SubprocessError) as e:
raise QemuError("Could not create hdd disk image {}".format(e))
else:
hdd_disk = self._hdd_disk_image
options.extend(["-drive", 'file={},if={},index=3,media=disk'.format(hdd_disk, self.hdd_disk_interface)])
return options

4
gns3server/schemas/qemu.py
View File

@ -38,6 +38,10 @@ QEMU_CREATE_SCHEMA = {
"type": "string",
"minLength": 1,
},
"linked_clone": {
"description": "either the VM is a linked clone or not",
"type": "boolean"
},
"qemu_path": {
"description": "Path to QEMU",
"type": ["string", "null"],