def boot_instance(nc, server_name, server_image, flavor, **kwargs):
"""
Boots up a compute instance
**Sigh**
So, in kilo you now have to specify a neutron network ID
:param nc: a nova client instance
:param server_name: string of name to give to compute instance
:param server_image: the nova image object to boot up
:param flavor: the flavor
:return: instance if successful, None otherwise
"""
default = dict([("name", server_name), ("image", server_image),
("flavor", flavor)])
if not kwargs:
kwargs = default
else:
kwargs.update(default)
instance = nc.servers.create(**kwargs)
servers = nc.servers.list()
for s in servers:
if s.name == server_name:
return instance
else:
glob_logger.error("Base image did not boot up")
return None
def download_url(urlpath, output_dir=".", binary=False):
try:
thing = urlopen(urlpath)
except Exception as e:
print(str(e))
return
parsed = urlparse(urlpath)
filename = os.path.basename(parsed.path)
writemod = "wb" if binary else "w"
fobj = thing.read()
if output_dir != ".":
if not os.path.exists(output_dir):
glob_logger.error("{0} does not exist".format(output_dir))
glob_logger.error("Writing file to {0}".format(os.getcwd()))
else:
filename = "/".join([output_dir, filename])
with open(filename, writemod) as downloaded:
try:
downloaded.write(fobj)
except TypeError:
with open(filename, "wb") as downloaded:
downloaded.write(fobj)
return os.path.exists(filename)
def boot_instance(nc, server_name, server_image, flavor, **kwargs):
"""
Boots up a compute instance
**Sigh**
So, in kilo you now have to specify a neutron network ID
:param nc: a nova client instance
:param server_name: string of name to give to compute instance
:param server_image: the nova image object to boot up
:param flavor: the flavor
:return: instance if successful, None otherwise
"""
default = dict([("name", server_name), ("image", server_image),
("flavor", flavor)])
if not kwargs:
kwargs = default
else:
kwargs.update(default)
instance = nc.servers.create(**kwargs)
servers = nc.servers.list()
for s in servers:
if s.name == server_name:
return instance
else:
glob_logger.error("Base image did not boot up")
return None
def check_args(self, creds):
missing = [k for k, v in creds.items() if v is None]
for m in missing:
glob_logger.error(
"Must supply --{} or have value in environment".format(m))
raise ArgumentError(
"Argument {} not supplied for credentials".format(m))
def download_url(urlpath, output_dir=".", binary=False):
try:
thing = urlopen(urlpath)
except Exception as e:
print(str(e))
return
parsed = urlparse(urlpath)
filename = os.path.basename(parsed.path)
writemod = "wb" if binary else "w"
fobj = thing.read()
if output_dir != ".":
if not os.path.exists(output_dir):
glob_logger.error("{0} does not exist".format(output_dir))
glob_logger.error("Writing file to {0}".format(os.getcwd()))
else:
filename = "/".join([output_dir,filename])
with open(filename, writemod) as downloaded:
try:
downloaded.write(fobj)
except TypeError:
with open(filename, "wb") as downloaded:
downloaded.write(fobj)
return os.path.exists(filename)
def pip_cmd(self, pkgnames, cmd="install", pip_args=None):
if pip_args is None:
pip_args = []
try:
from setuptools import find_packages
import pip
except ImportError as ie:
glob_logger.error(ie.msg)
pip_args.append(cmd)
if isinstance(pkgnames, str):
pip_args.append(pkgnames)
else:
## concatenate the lists
pip_args += [pkg for pkg in pkgnames]
msg = "Running pip " + " ".join(pip_args)
glob_logger.info(msg)
try:
import pip
pip.main(initial_args=pip_args)
except ImportError as ie:
self.logger.error("Unable to import pip")
raise ie
def test_and_set_nested(host, timeout=600):
"""
Verifies that the host has nested virtualization set for kvm module
:param host:
:param timeout:
:return: ProcessResult
"""
cmd = "cat /sys/module/kvm_intel/parameters/nested"
res = Command(cmd, host=host)(showout=False)
if res.output.strip() != "Y":
# Reboot the masters machine
glob_logger.info("rebooting {} to set nested param".format(host))
rebooter(host, timeout=timeout)
time.sleep(45) # Fudge factor here...
pinger(host, timeout=timeout)
# After reboot, make sure nested support is there
path = "/sys/module/kvm_intel/parameters/nested"
cmd = "cat {}".format(path)
try:
res = Command(cmd, host=host)(showout=False)
if res.output.strip() != "Y":
glob_logger.error("{}={}".format(path, res.output.strip()))
raise sce.ConfigException("Nested support still not enabled")
except CommandException:
raise sce.ConfigException("Nested support still not enabled")
return res
def pip_cmd(self, pkgnames, cmd="install", pip_args=None):
if pip_args is None:
pip_args = []
try:
from setuptools import find_packages
import pip
except ImportError as ie:
glob_logger.error(ie.msg)
pip_args.append(cmd)
if isinstance(pkgnames, str):
pip_args.append(pkgnames)
else:
## concatenate the lists
pip_args += [pkg for pkg in pkgnames]
msg = "Running pip " + " ".join(pip_args)
glob_logger.info(msg)
try:
import pip
pip.main(initial_args=pip_args)
except ImportError as ie:
self.logger.error("Unable to import pip")
raise ie
def test_and_set_nested(host, timeout=600):
"""
Verifies that the host has nested virtualization set for kvm module
:param host:
:param timeout:
:return: ProcessResult
"""
cmd = "cat /sys/module/kvm_intel/parameters/nested"
res = Command(cmd, host=host)(showout=False)
if res.output.strip() != "Y":
# Reboot the masters machine
glob_logger.info("rebooting {} to set nested param".format(host))
rebooter(host, timeout=timeout)
time.sleep(45) # Fudge factor here...
pinger(host, timeout=timeout)
# After reboot, make sure nested support is there
path = "/sys/module/kvm_intel/parameters/nested"
cmd = "cat {}".format(path)
try:
res = Command(cmd, host=host)(showout=False)
if res.output.strip() != "Y":
glob_logger.error("{}={}".format(path, res.output.strip()))
raise sce.ConfigException("Nested support still not enabled")
except CommandException:
raise sce.ConfigException("Nested support still not enabled")
return res
def _poll_for_status(instance,
status,
poll_interval=2,
timeout=300,
log=False):
"""
Polls for the status of a nova instance
:param instance: The nova instance object to poll
:param status: What status to check for. If "deleted", polls until the
instance has been deleted
:param poll_interval:
:param timeout:
:return:
"""
start_time = time.time()
def timer():
endtime = start_time + timeout
if timeout is None:
return True
else:
timenow = time.time()
check = endtime > timenow
return check
achieved = False
while timer():
try:
instance.get()
except NotFound as nf:
if status == "deleted":
achieved = True
break
else:
raise nf
except AttributeError as ae:
if status == "deleted":
achieved = True
break
else:
raise ae
else:
if instance.status == "ERROR":
if status == "ERROR":
achieved = True
else:
glob_logger.error("Failed to boot instance")
break
if instance.status != status:
if log:
msg = "Checking for {} on {}: status is {}"
msg = msg.format(status, instance.name, instance.status)
glob_logger.info(msg)
time.sleep(poll_interval)
else:
achieved = True
break
return achieved
def copy_settings(self):
settings_p = "/etc/openstack-dashboard/"
src = "local_settings.rpmnew"
shutil.copy(src, "local_settings")
for host in self.hosts:
dest = "root@{}:{}".format(host, settings_p)
res = scp(src, dest)
if res != 0:
glob_logger.error("Could not copy local_settings to remote")
def copy_settings(self):
settings_p = "/etc/openstack-dashboard/"
src = "local_settings.rpmnew"
shutil.copy(src, "local_settings")
for host in self.hosts:
dest = "root@{}:{}".format(host, settings_p)
res = scp(src, dest)
if res != 0:
glob_logger.error("Could not copy local_settings to remote")
def _poll_for_status(instance, status, poll_interval=2, timeout=300, log=False):
"""
Polls for the status of a nova instance
:param instance: The nova instance object to poll
:param status: What status to check for. If "deleted", polls until the
instance has been deleted
:param poll_interval:
:param timeout:
:return:
"""
start_time = time.time()
def timer():
endtime = start_time + timeout
if timeout is None:
return True
else:
timenow = time.time()
check = endtime > timenow
return check
achieved = False
while timer():
try:
instance.get()
except NotFound as nf:
if status == "deleted":
achieved = True
break
else:
raise nf
except AttributeError as ae:
if status == "deleted":
achieved = True
break
else:
raise ae
else:
if instance.status == "ERROR":
if status == "ERROR":
achieved = True
else:
glob_logger.error("Failed to boot instance")
break
if instance.status != status:
if log:
msg = "Checking for {} on {}: status is {}"
msg = msg.format(status, instance.name, instance.status)
glob_logger.info(msg)
time.sleep(poll_interval)
else:
achieved = True
break
return achieved
def _upgrade(self, commands):
# Make sure to stop the service first
for host in self.hosts:
cmds = [Command(x, host=host) for x in commands]
for cmd in cmds:
glob_logger.info("Calling: {}".format(cmd.cmd))
try:
res = cmd()
if res != 0:
glob_logger.error("Unable to run {}".format(cmd.cmd))
except:
cmdstr = cmd.cmd
glob_logger.error("Could not execute {}".format(cmdstr))
state = self.get_service_state()
if "active" not in state:
raise Exception("Service {} did not come up".format(self.name))
def _upgrade(self, commands):
# Make sure to stop the service first
for host in self.hosts:
cmds = [Command(x, host=host) for x in commands]
for cmd in cmds:
glob_logger.info("Calling: {}".format(cmd.cmd))
try:
res = cmd()
if res != 0:
glob_logger.error("Unable to run {}".format(cmd.cmd))
except:
cmdstr = cmd.cmd
glob_logger.error("Could not execute {}".format(cmdstr))
state = self.get_service_state()
if "active" not in state:
raise Exception("Service {} did not come up".format(self.name))
def backup_settings(self):
settings_p = "/etc/openstack-dashboard/"
settings_f = "local_settings"
settings_full = os.path.join(settings_p, settings_f)
for host in self.hosts:
src = "root@{}:{}".format(host, settings_full)
scp(src, ".")
shutil.move(settings_f, settings_f + ".old")
shutil.copy(settings_f, settings_f + ".rpmnew")
# Check that we have ALLOWED_HOSTS
found = get_cfg("ALLOWED_HOSTS", "local_settings.rpmnew")
found = filter(lambda x: x.comment is None, found)
if found and found[0].val:
pass
else:
glob_logger.error("Need to correct ALLOWED_HOSTS")
sys.exit(1)
def backup_settings(self):
settings_p = "/etc/openstack-dashboard/"
settings_f = "local_settings"
settings_full = os.path.join(settings_p, settings_f)
for host in self.hosts:
src = "root@{}:{}".format(host, settings_full)
scp(src, ".")
shutil.move(settings_f, settings_f + ".old")
shutil.copy(settings_f, settings_f + ".rpmnew")
# Check that we have ALLOWED_HOSTS
found = get_cfg("ALLOWED_HOSTS", "local_settings.rpmnew")
found = filter(lambda x: x.comment is None, found)
if found and found[0].val:
pass
else:
glob_logger.error("Need to correct ALLOWED_HOSTS")
sys.exit(1)
def boot_pinned_instances(self, pin_flavor):
pin_instance = self.numa.boot_instance(flv=pin_flavor, name="pin_test")
active = smog.nova.poll_status(pin_instance, "ACTIVE")
if not active:
glob_logger.error("FAIL: The pinned instance could not be created")
# Parse our command line arguments
args = parser.parse_args()
ram, vcpus, disk = args.flavor.split(",")
if args.key is not None:
pairs = [item.split("=") for item in args.key]
specs = {k: v for k, v in pairs}
username = args.username
tenant_name = args.tenant_name
auth_url = args.auth_url
password = args.password
creds = {"username": username, "tenant_name": tenant_name, "auth_url": auth_url, "password": password}
missing = [k for k, v in creds.items() if v is None]
for m in missing:
glob_logger.error("Must supply --{} or have value in environment".format(m))
raise ArgumentError("Argument {} not supplied for credentials".format(m))
numa = NUMA(**creds) # Create a NUMA object
numa.clean() # make sure we have a clean system
# Create a new flavor that will have the extra specs we need
numa_flavor = numa.create_flavor("numa_flavor", ram=ram, vcpus=vcpus, disksize=disk, specs=None)
# Modify the flavor with the appropriate extra_specs
numa_flavor = numa.create_numa_topo_extra_specs(flv=numa_flavor, numa_nodes=1)
# Now we have a flavor with 2 NUMA nodes defined. You can display the extra_specs
extra_specs = numa_flavor.get_keys()
glob_logger.info(str(extra_specs))
pairs = [item.split("=") for item in args.key]
specs = {k: v for k, v in pairs}
username = args.username
tenant_name = args.tenant_name
auth_url = args.auth_url
password = args.password
creds = {
"username": username,
"tenant_name": tenant_name,
"auth_url": auth_url,
"password": password
}
missing = [k for k, v in creds.items() if v is None]
for m in missing:
glob_logger.error(
"Must supply --{} or have value in environment".format(m))
raise ArgumentError("Argument {} not supplied for credentials".format(m))
numa = NUMA(**creds) # Create a NUMA object
numa.clean() # make sure we have a clean system
# Create a new flavor that will have the extra specs we need
numa_flavor = numa.create_flavor("numa_flavor",
ram=ram,
vcpus=vcpus,
disksize=disk,
specs=None)
# Modify the flavor with the appropriate extra_specs
numa_flavor = numa.create_numa_topo_extra_specs(flv=numa_flavor, numa_nodes=1)
watcher.close() # close all our threads (TODO: close automatically)
cmpt = host
alias_res = pci.set_pci_alias(cmpt, alias_name, v_id, p_id)
white_res = pci.set_pci_whitelist(cmpt, v_id, p_id, "./nova.conf")
filter_res = pci.set_pci_filter(cmpt, "./nova.conf")
src = "./nova.conf"
dest = "root@{}:/etc/nova/nova.conf".format(cmpt)
res = scp(src, dest)
# TODO: Add the NUMATopologyFilter to the default_scheduler_filter list
nova_conf = get_nova_conf(host)
lines = get_cfg("scheduler_default_filters", nova_conf)
lines_ = list(filter(lambda l: l.comment is None, lines))
if not lines_:
glob_logger.error("Unable to get")
# restart nova
pci.openstack_service(cmpt, "restart", "nova")
# Setup example
creds = read_rc_file(args.server, "/root/keystonerc_admin")
# Now, we create a PCI flavor and attempt to boot
numa = NUMA(**creds)
flv = numa.create_flavor("pci_small", ram=512, vcpus=1)
pci_pass_flv = numa.create_pci_flavor(alias_name, flv=flv)
glob_logger.info(str(pci_pass_flv.get_keys()))
guest = numa.boot_instance(flv=pci_pass_flv, name="pci-testing")
def boot_pinned_instances(self, pin_flavor):
pin_instance = self.numa.boot_instance(flv=pin_flavor, name="pin_test")
active = smog.nova.poll_status(pin_instance, "ACTIVE")
if not active:
glob_logger.error("FAIL: The pinned instance could not be created")
def check_args(self, creds):
missing = [k for k, v in creds.items() if v is None]
for m in missing:
glob_logger.error("Must supply --{} or have value in environment".format(m))
raise ArgumentError("Argument {} not supplied for credentials".format(m))
