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Commit
6eeb5839
authored
Aug 16, 2023
by
Zoltan Karsa
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arguments parser
parent
49a28fd7
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1 changed file
with
91 additions
and
59 deletions
+91
-59
vm.py
+91
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vm.py
View file @
6eeb5839
import
libvirt
import
libvirt
import
sys
import
sys
,
getopt
,
os
import
uuid
import
uuid
from
jinja2
import
Environment
,
select_autoescape
,
FileSystemLoader
from
jinja2
import
Environment
,
select_autoescape
,
FileSystemLoader
import
subprocess
import
subprocess
from
utils
import
fwd_port
,
show_ip
from
utils
import
fwd_port
,
show_ip
try
:
conn
=
libvirt
.
open
(
"qemu:///system"
)
except
libvirt
.
libvirtError
:
print
(
'Failed to open connection to the hypervisor'
)
sys
.
exit
(
1
)
file_loader
=
FileSystemLoader
(
'templates'
)
file_loader
=
FileSystemLoader
(
'templates'
)
env
=
Environment
(
autoescape
=
select_autoescape
(
env
=
Environment
(
autoescape
=
select_autoescape
(
...
@@ -33,65 +27,103 @@ params = {
...
@@ -33,65 +27,103 @@ params = {
"boot_menu"
:
"yes"
,
"boot_menu"
:
"yes"
,
}
}
template
=
env
.
get_template
(
"demovm.xml"
)
def
start_vm
(
params
):
vmxml
=
template
.
render
(
template
=
env
.
get_template
(
"demovm.xml"
)
**
params
)
print
(
vmxml
)
vmxml
=
template
.
render
(
**
params
)
input
(
"Correct? "
)
print
(
vmxml
)
id
=
params
[
"uuid"
]
input
(
"Correct? "
)
bus
=
params
[
"mdev_bus"
]
vgpu
=
params
[
"vgpu_type"
]
if
params
[
"vgpu"
]:
print
(
"Allocating VGPU instance for the VM"
)
try
:
try
:
subprocess
.
run
([
f
"sudo bash create_vgpu.sh {id} {bus} {vgpu}"
],
check
=
True
,
shell
=
True
,
stderr
=
subprocess
.
STDOUT
)
conn
=
libvirt
.
open
(
"qemu:///system"
)
except
subprocess
.
CalledProcessError
as
e
:
except
libvirt
.
libvirtError
:
raise
RuntimeError
(
"command '{}' return with error (code {}): {}"
.
format
(
e
.
cmd
,
e
.
returncode
,
e
.
output
))
print
(
'Failed to open connection to the hypervisor'
)
sys
.
exit
(
1
)
try
:
dom
=
conn
.
defineXML
(
vmxml
)
id
=
params
[
"uuid"
]
if
not
dom
:
raise
SystemExit
(
"Failed to define a domain from an XML definition"
)
if
params
[
"vgpu"
]:
print
(
"Start VM"
)
bus
=
params
[
"mdev_bus"
]
if
dom
.
create
()
<
0
:
vgpu
=
params
[
"vgpu_type"
]
raise
SystemExit
(
"Can not boot guest domain"
)
print
(
"Allocating VGPU instance for the VM"
)
except
libvirt
.
libvirtError
:
try
:
print
(
'Failed to find the main domain'
)
subprocess
.
run
([
f
"sudo bash create_vgpu.sh {id} {bus} {vgpu}"
],
check
=
True
,
shell
=
True
,
stderr
=
subprocess
.
STDOUT
)
sys
.
exit
(
1
)
except
subprocess
.
CalledProcessError
as
e
:
raise
RuntimeError
(
"command '{}' return with error (code {}): {}"
.
format
(
e
.
cmd
,
e
.
returncode
,
e
.
output
))
print
(
"Domain 0: id
%
d running
%
s"
%
(
dom
.
ID
(),
dom
.
OSType
()))
print
(
dom
.
info
())
print
(
"Type stop, to shutdown vm!"
)
cmd
=
input
()
while
cmd
!=
"stop"
:
cmdarr
=
cmd
.
split
()
if
cmdarr
[
0
]
==
"fwd"
:
fwd_port
(
dom
,
int
(
cmdarr
[
1
]),
int
(
cmdarr
[
2
]))
elif
cmdarr
[
0
]
==
"showip"
:
show_ip
(
dom
)
cmd
=
input
()
try
:
try
:
print
(
"Stop VM"
)
dom
=
conn
.
defineXML
(
vmxml
)
if
dom
.
destroy
()
<
0
:
if
not
dom
:
raise
SystemExit
(
"Can not stop guest domain"
)
raise
SystemExit
(
"Failed to define a domain from an XML definition"
)
except
libvirt
.
libvirtError
:
print
(
"Start VM"
)
print
(
'Failed to find the main domain'
)
if
dom
.
create
()
<
0
:
sys
.
exit
(
1
)
raise
SystemExit
(
"Can not boot guest domain"
)
except
libvirt
.
libvirtError
:
print
(
'Failed to find the main domain'
)
sys
.
exit
(
1
)
print
(
"Domain 0: id
%
d running
%
s"
%
(
dom
.
ID
(),
dom
.
OSType
()))
print
(
dom
.
info
())
print
(
"Type stop, to shutdown vm!"
)
cmd
=
input
()
while
cmd
!=
"stop"
:
cmdarr
=
cmd
.
split
()
if
cmdarr
[
0
]
==
"fwd"
:
fwd_port
(
dom
,
int
(
cmdarr
[
1
]),
int
(
cmdarr
[
2
]))
elif
cmdarr
[
0
]
==
"showip"
:
show_ip
(
dom
)
cmd
=
input
()
if
params
[
"vgpu"
]:
print
(
"Deallocating VGPU instance from the VM"
)
try
:
try
:
subprocess
.
run
([
f
"sudo bash remove_vgpu.sh {id} {bus} {vgpu}"
],
check
=
True
,
shell
=
True
,
stderr
=
subprocess
.
STDOUT
)
print
(
"Stop VM"
)
except
subprocess
.
CalledProcessError
as
e
:
if
dom
.
destroy
()
<
0
:
raise
RuntimeError
(
"command '{}' return with error (code {}): {}"
.
format
(
e
.
cmd
,
e
.
returncode
,
e
.
output
))
raise
SystemExit
(
"Can not stop guest domain"
)
except
libvirt
.
libvirtError
:
print
(
'Failed to find the main domain'
)
sys
.
exit
(
1
)
if
params
[
"vgpu"
]:
print
(
"Deallocating VGPU instance from the VM"
)
try
:
subprocess
.
run
([
f
"sudo bash remove_vgpu.sh {id} {bus} {vgpu}"
],
check
=
True
,
shell
=
True
,
stderr
=
subprocess
.
STDOUT
)
except
subprocess
.
CalledProcessError
as
e
:
raise
RuntimeError
(
"command '{}' return with error (code {}): {}"
.
format
(
e
.
cmd
,
e
.
returncode
,
e
.
output
))
conn
.
close
()
\ No newline at end of file
conn
.
close
()
def
main
():
try
:
opts
,
args
=
getopt
.
getopt
(
sys
.
argv
[
1
:],
"gbmcd:v"
,
[
"help"
,
"output="
])
except
getopt
.
GetoptError
as
err
:
# print help information and exit:
print
(
err
)
# will print something like "option -a not recognized"
sys
.
exit
(
2
)
for
o
,
a
in
opts
:
if
o
in
(
"-m"
,
"--mem"
):
params
[
"ram"
]
=
int
(
a
)
elif
o
in
(
"-g"
,
"--gpu"
):
params
[
"vgpu"
]
=
True
params
[
"vgpu_type"
]
=
a
elif
o
in
(
"-b"
,
"--boot"
):
params
[
"boot_iso"
]
=
True
params
[
"iso"
]
=
a
if
not
os
.
path
.
isfile
(
a
):
raise
RuntimeError
(
"The attached boot iso is not a file or not exists"
)
elif
o
in
(
"-c"
,
"--cpu"
):
params
[
"vcpu"
]
=
int
(
a
)
elif
o
in
(
"-d"
,
"--disk"
):
params
[
"disk"
]
=
a
if
not
os
.
path
.
isfile
(
a
):
raise
RuntimeError
(
"The attached disk is not a file or not exists"
)
else
:
assert
False
,
"unhandled option"
start_vm
(
params
)
\ No newline at end of file
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