def parse_vm_info(image):
path = '/var/lib/buildkit/vm/%s/vmtmp/vm.info'%image
if os.path.exists(path):
fp = open(path, 'r')
data = fp.read().split('\n')
fp.close()
return stacks.obj(
pid = data[0],
serial = data[1],
monitor = data[2],
)
else:
return stacks.obj(
pid = None,
)
def get_vm_info():
cmd = 'ps ax -o "pid args" | grep "/bin/kvm" | grep "/var/lib/buildkit/vm"'
result = stacks.process(
cmd=cmd,
shell = True,
)
lines = result.stdout.split('\n')
instances = []
for line in lines:
if not line.strip() or cmd in line:
continue
parts = [part for part in line.strip().split(' ') if part]
pid = parts[0]
try:
image_arg = parts[18].split('=')[1].split(',')[0].split('/')[-2]
except:
image_arg = 'ERROR'
try:
net_arg = parts[22].split(',')[1].split('=')[1]
except:
net_arg = 'ERROR'
instance = stacks.obj(
pid = pid,
image = image_arg,
tunnel = net_arg
)
instances.append(instance)
return instances
def full_info(images=None):
if images == []:
images = None
vm_info = get_vm_info()
error = None
instances = []
if not vm_info:
error = 'No VMs running'
else:
not_running = images[:]
for instance in vm_info:
if images is None or instance.image in images:
info = parse_vm_info(instance.image)
if instance.pid != info.pid:
instance['serial'] = 'UNKNOWN'
instance['monitor'] = 'UNKNOWN'
else:
instance.update(info)
instances.append(instance)
not_running.pop(not_running.index(instance.image))
if images is not None and not_running:
error = 'The following VMs are not running: %r'%(', '.join(not_running))
return stacks.obj(
error=error,
instances=instances,
)
def parse_file_and_dir_specs(value):
result = []
for spec in value:
pair = spec.split('->')
if not len(pair) == 2:
raise Exception('A spec can only contain one set of -> characters')
src = stacks.uniform_path(pair[0].strip())
if not os.path.exists(src):
raise Exception('No such file or directory %r'%src)
dst = pair[1].strip()
if not dst.startswith('/'):
raise Exception('The destination path must start with a / character')
result.append(stacks.obj(src=src, dst=dst))
return result
def get_bridge_info():
result = stacks.process(
[
'brctl', 'show',
],
)
lines = result.stdout.split('\n')
interfaces_pos = lines[0].find('interfaces')
tunnels = []
bridges = stacks.obj()
bridge = None
for line in lines[1:]:
new_bridge = line.split('\t')[0].strip()
if new_bridge:
bridge = new_bridge
if not bridges.has_key(bridge):
bridges[bridge] = []
tunnel = line.split('\t')[-1]
if tunnel:
bridges[bridge].append(tunnel)
tunnels.append(tunnel)
tunnels.sort()
return stacks.obj(bridges=bridges, tunnels=tunnels)