def test_get_listeners_on_lb(self, mock_exists, mock_get_haproxy_pid,
mock_config_path):
fake_cfg_path = '/some/fake/cfg/file.cfg'
mock_config_path.return_value = fake_cfg_path
mock_get_haproxy_pid.return_value = 'fake_pid'
# Finds two listeners
mock_exists.side_effect = [True, True]
fake_cfg_data = 'frontend list1\nbackend foo\nfrontend list2'
self.useFixture(test_utils.OpenFixture(fake_cfg_path,
fake_cfg_data)).mock_open
result = self.test_loadbalancer._get_listeners_on_lb(LB_ID1)
self.assertEqual(['list1', 'list2'], result)
mock_exists.assert_has_calls([
mock.call(agent_util.pid_path(LB_ID1)),
mock.call('/proc/fake_pid')
])
# No PID file, no listeners
mock_exists.reset_mock()
mock_exists.side_effect = [False]
result = self.test_loadbalancer._get_listeners_on_lb(LB_ID1)
self.assertEqual([], result)
mock_exists.assert_called_once_with(agent_util.pid_path(LB_ID1))
# PID file, no running process, no listeners
mock_exists.reset_mock()
mock_exists.side_effect = [True, False]
result = self.test_loadbalancer._get_listeners_on_lb(LB_ID1)
self.assertEqual([], result)
mock_exists.assert_has_calls([
mock.call(agent_util.pid_path(LB_ID1)),
mock.call('/proc/fake_pid')
])
# PID file, running process, no listeners
mock_exists.reset_mock()
mock_exists.side_effect = [True, True]
fake_cfg_data = 'backend only'
self.useFixture(test_utils.OpenFixture(fake_cfg_path,
fake_cfg_data)).mock_open
result = self.test_loadbalancer._get_listeners_on_lb(LB_ID1)
self.assertEqual([], result)
mock_exists.assert_has_calls([
mock.call(agent_util.pid_path(LB_ID1)),
mock.call('/proc/fake_pid')
])
def delete_listener(listener_id):
_check_listener_exists(listener_id)
# check if that haproxy is still running and if stop it
if os.path.exists(util.pid_path(listener_id)) and os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
cmd = "/usr/sbin/service haproxy-{0} stop".format(listener_id)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to stop HAProxy service: %s", e)
return flask.make_response(flask.jsonify(dict(
message="Error stopping haproxy",
details=e.output)), 500)
# parse config and delete stats socket
try:
cfg = _parse_haproxy_file(listener_id)
os.remove(cfg['stats_socket'])
except Exception:
pass
# delete the ssl files
try:
shutil.rmtree(_cert_dir(listener_id))
except Exception:
pass
# delete the directory + upstart script for that listener
shutil.rmtree(util.haproxy_dir(listener_id))
if os.path.exists(util.upstart_path(listener_id)):
os.remove(util.upstart_path(listener_id))
return flask.jsonify({'message': 'OK'})
def _check_listener_status(listener_id):
if os.path.exists(util.pid_path(listener_id)):
if os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
return consts.ACTIVE
else: # pid file but no process...
return consts.ERROR
else:
return consts.OFFLINE
def delete_listener(self, listener_id):
self._check_listener_exists(listener_id)
# check if that haproxy is still running and if stop it
if os.path.exists(util.pid_path(listener_id)) and os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
cmd = "/usr/sbin/service haproxy-{0} stop".format(listener_id)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to stop HAProxy service: %s", e)
return webob.Response(json=dict(
message="Error stopping haproxy",
details=e.output), status=500)
# parse config and delete stats socket
try:
cfg = self._parse_haproxy_file(listener_id)
os.remove(cfg['stats_socket'])
except Exception:
pass
# delete the ssl files
try:
shutil.rmtree(self._cert_dir(listener_id))
except Exception:
pass
# disable the service
init_system = util.get_os_init_system()
init_path = util.init_path(listener_id, init_system)
if init_system == consts.INIT_SYSTEMD:
init_disable_cmd = "systemctl disable haproxy-{list}".format(
list=listener_id)
elif init_system == consts.INIT_SYSVINIT:
init_disable_cmd = "insserv -r {file}".format(file=init_path)
elif init_system != consts.INIT_UPSTART:
raise util.UnknownInitError()
if init_system != consts.INIT_UPSTART:
try:
subprocess.check_output(init_disable_cmd.split(),
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to disable haproxy-%(list)s service: "
"%(err)s", {'list': listener_id, 'err': e})
return webob.Response(json=dict(
message="Error disabling haproxy-{0} service".format(
listener_id), details=e.output), status=500)
# delete the directory + init script for that listener
shutil.rmtree(util.haproxy_dir(listener_id))
if os.path.exists(init_path):
os.remove(init_path)
return webob.Response(json={'message': 'OK'})
def _check_haproxy_status(self, listener_id):
if os.path.exists(util.pid_path(listener_id)):
if os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
return consts.ACTIVE
else: # pid file but no process...
return consts.OFFLINE
else:
return consts.OFFLINE
def _get_listeners_on_lb(self, lb_id):
if os.path.exists(util.pid_path(lb_id)):
if os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(lb_id))):
# Check if the listener is disabled
with open(util.config_path(lb_id), 'r') as file:
cfg = file.read()
m = re.findall('^frontend (.*)$', cfg, re.MULTILINE)
return m or []
else: # pid file but no process...
return []
else:
return []
def _check_listener_status(self, listener_id):
if os.path.exists(util.pid_path(listener_id)):
if os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
# Check if the listener is disabled
with open(util.config_path(listener_id), 'r') as file:
cfg = file.read()
m = re.search('frontend {}'.format(listener_id), cfg)
if m:
return consts.ACTIVE
return consts.OFFLINE
else: # pid file but no process...
return consts.ERROR
else:
return consts.OFFLINE
def _check_listener_status(self, listener_id):
if os.path.exists(util.pid_path(listener_id)):
if os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
# Check if the listener is disabled
with open(util.config_path(listener_id), 'r') as file:
cfg = file.read()
m = re.search('frontend {}'.format(listener_id), cfg)
if m:
return consts.ACTIVE
return consts.OFFLINE
else: # pid file but no process...
return consts.ERROR
else:
return consts.OFFLINE
def upload_haproxy_config(listener_id):
stream = Wrapped(flask.request.stream)
if not os.path.exists(util.haproxy_dir(listener_id)):
os.makedirs(util.haproxy_dir(listener_id))
name = os.path.join(util.haproxy_dir(listener_id), 'haproxy.cfg.new')
with open(name, 'w') as file:
b = stream.read(BUFFER)
while (b):
file.write(b)
b = stream.read(BUFFER)
# use haproxy to check the config
cmd = "haproxy -c -f {config_file}".format(config_file=name)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to verify haproxy file: %s", e)
os.remove(name) # delete file
return flask.make_response(flask.jsonify(dict(
message="Invalid request",
details=e.output)), 400)
# file ok - move it
os.rename(name, util.config_path(listener_id))
if not os.path.exists(util.upstart_path(listener_id)):
with open(util.upstart_path(listener_id), 'w') as text_file:
text = template.render(
haproxy_pid=util.pid_path(listener_id),
haproxy_cmd=util.CONF.haproxy_amphora.haproxy_cmd,
haproxy_cfg=util.config_path(listener_id),
respawn_count=util.CONF.haproxy_amphora.respawn_count,
respawn_interval=util.CONF.haproxy_amphora.respawn_interval
)
text_file.write(text)
res = flask.make_response(flask.jsonify({
'message': 'OK'}), 202)
res.headers['ETag'] = stream.get_md5()
return res
def upload_haproxy_config(amphora_id, listener_id):
stream = Wrapped(flask.request.stream)
# We have to hash here because HAProxy has a string length limitation
# in the configuration file "peer <peername>" lines
peer_name = octavia_utils.base64_sha1_string(amphora_id).rstrip('=')
if not os.path.exists(util.haproxy_dir(listener_id)):
os.makedirs(util.haproxy_dir(listener_id))
name = os.path.join(util.haproxy_dir(listener_id), 'haproxy.cfg.new')
flags = os.O_WRONLY | os.O_CREAT | os.O_TRUNC
# mode 00600
mode = stat.S_IRUSR | stat.S_IWUSR
with os.fdopen(os.open(name, flags, mode), 'w') as file:
b = stream.read(BUFFER)
while (b):
file.write(b)
b = stream.read(BUFFER)
# use haproxy to check the config
cmd = "haproxy -c -L {peer} -f {config_file}".format(config_file=name,
peer=peer_name)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to verify haproxy file: %s", e)
os.remove(name) # delete file
return flask.make_response(
flask.jsonify(dict(message="Invalid request", details=e.output)),
400)
# file ok - move it
os.rename(name, util.config_path(listener_id))
use_upstart = util.CONF.haproxy_amphora.use_upstart
file = util.init_path(listener_id)
# mode 00755
mode = (stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP | stat.S_IROTH
| stat.S_IXOTH)
if not os.path.exists(file):
with os.fdopen(os.open(file, flags, mode), 'w') as text_file:
template = UPSTART_TEMPLATE if use_upstart else SYSVINIT_TEMPLATE
text = template.render(
peer_name=peer_name,
haproxy_pid=util.pid_path(listener_id),
haproxy_cmd=util.CONF.haproxy_amphora.haproxy_cmd,
haproxy_cfg=util.config_path(listener_id),
respawn_count=util.CONF.haproxy_amphora.respawn_count,
respawn_interval=util.CONF.haproxy_amphora.respawn_interval,
amphora_nsname=consts.AMPHORA_NAMESPACE)
text_file.write(text)
if not use_upstart:
insrvcmd = ("insserv {file}".format(file=file))
try:
subprocess.check_output(insrvcmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to make %(file)s executable: %(err)s", {
'file': file,
'err': e
})
return flask.make_response(
flask.jsonify(
dict(message="Error making file {0} executable".format(
file),
details=e.output)), 500)
res = flask.make_response(flask.jsonify({'message': 'OK'}), 202)
res.headers['ETag'] = stream.get_md5()
return res
def _check_haproxy_status(self, lb_id):
if os.path.exists(util.pid_path(lb_id)):
if os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(lb_id))):
return consts.ACTIVE
return consts.OFFLINE
def upload_haproxy_config(amphora_id, listener_id):
stream = Wrapped(flask.request.stream)
# We have to hash here because HAProxy has a string length limitation
# in the configuration file "peer <peername>" lines
peer_name = octavia_utils.base64_sha1_string(amphora_id).rstrip('=')
if not os.path.exists(util.haproxy_dir(listener_id)):
os.makedirs(util.haproxy_dir(listener_id))
name = os.path.join(util.haproxy_dir(listener_id), 'haproxy.cfg.new')
with open(name, 'w') as file:
b = stream.read(BUFFER)
while (b):
file.write(b)
b = stream.read(BUFFER)
# use haproxy to check the config
cmd = "haproxy -c -L {peer} -f {config_file}".format(config_file=name,
peer=peer_name)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to verify haproxy file: %s", e)
os.remove(name) # delete file
return flask.make_response(flask.jsonify(dict(
message="Invalid request",
details=e.output)), 400)
# file ok - move it
os.rename(name, util.config_path(listener_id))
use_upstart = util.CONF.haproxy_amphora.use_upstart
if not os.path.exists(util.init_path(listener_id)):
with open(util.init_path(listener_id), 'w') as text_file:
template = UPSTART_TEMPLATE if use_upstart else SYSVINIT_TEMPLATE
text = template.render(
peer_name=peer_name,
haproxy_pid=util.pid_path(listener_id),
haproxy_cmd=util.CONF.haproxy_amphora.haproxy_cmd,
haproxy_cfg=util.config_path(listener_id),
respawn_count=util.CONF.haproxy_amphora.respawn_count,
respawn_interval=util.CONF.haproxy_amphora.respawn_interval
)
text_file.write(text)
if not use_upstart:
# make init.d script executable
file = util.init_path(listener_id)
permcmd = ("chmod 755 {file}".format(file=file))
insrvcmd = ("insserv {file}".format(file=file))
try:
subprocess.check_output(permcmd.split(), stderr=subprocess.STDOUT)
subprocess.check_output(insrvcmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to make %(file)s executable: %(err)s",
{'file': file, 'err': e})
return flask.make_response(flask.jsonify(dict(
message="Error making file {0} executable".format(file),
details=e.output)), 500)
res = flask.make_response(flask.jsonify({
'message': 'OK'}), 202)
res.headers['ETag'] = stream.get_md5()
return res
def upload_haproxy_config(self, amphora_id, listener_id):
"""Upload the haproxy config
:param amphora_id: The id of the amphora to update
:param listener_id: The id of the listener
"""
stream = Wrapped(flask.request.stream)
# We have to hash here because HAProxy has a string length limitation
# in the configuration file "peer <peername>" lines
peer_name = octavia_utils.base64_sha1_string(amphora_id).rstrip('=')
if not os.path.exists(util.haproxy_dir(listener_id)):
os.makedirs(util.haproxy_dir(listener_id))
name = os.path.join(util.haproxy_dir(listener_id), 'haproxy.cfg.new')
flags = os.O_WRONLY | os.O_CREAT | os.O_TRUNC
# mode 00600
mode = stat.S_IRUSR | stat.S_IWUSR
b = stream.read(BUFFER)
s_io = io.StringIO()
while b:
# Write haproxy configuration to StringIO
s_io.write(b.decode('utf8'))
b = stream.read(BUFFER)
# Since haproxy user_group is now auto-detected by the amphora agent,
# remove it from haproxy configuration in case it was provided
# by an older Octavia controller. This is needed in order to prevent
# a duplicate entry for 'group' in haproxy configuration, which will
# result an error when haproxy starts.
new_config = re.sub(r"\s+group\s.+", "", s_io.getvalue())
# Handle any haproxy version compatibility issues
new_config = haproxy_compatibility.process_cfg_for_version_compat(
new_config)
with os.fdopen(os.open(name, flags, mode), 'w') as file:
file.write(new_config)
# use haproxy to check the config
cmd = "haproxy -c -L {peer} -f {config_file} -f {haproxy_ug}".format(
config_file=name, peer=peer_name,
haproxy_ug=consts.HAPROXY_USER_GROUP_CFG)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to verify haproxy file: %s %s", e, e.output)
# Save the last config that failed validation for debugging
os.rename(name, ''.join([name, '-failed']))
return webob.Response(
json=dict(message="Invalid request", details=e.output),
status=400)
# file ok - move it
os.rename(name, util.config_path(listener_id))
try:
init_system = util.get_os_init_system()
LOG.debug('Found init system: %s', init_system)
init_path = util.init_path(listener_id, init_system)
if init_system == consts.INIT_SYSTEMD:
template = SYSTEMD_TEMPLATE
# Render and install the network namespace systemd service
util.install_netns_systemd_service()
util.run_systemctl_command(
consts.ENABLE, consts.AMP_NETNS_SVC_PREFIX + '.service')
elif init_system == consts.INIT_UPSTART:
template = UPSTART_TEMPLATE
elif init_system == consts.INIT_SYSVINIT:
template = SYSVINIT_TEMPLATE
init_enable_cmd = "insserv {file}".format(file=init_path)
else:
raise util.UnknownInitError()
except util.UnknownInitError:
LOG.error("Unknown init system found.")
return webob.Response(json=dict(
message="Unknown init system in amphora",
details="The amphora image is running an unknown init "
"system. We can't create the init configuration "
"file for the load balancing process."), status=500)
if init_system == consts.INIT_SYSTEMD:
# mode 00644
mode = (stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IROTH)
else:
# mode 00755
mode = (stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP |
stat.S_IROTH | stat.S_IXOTH)
hap_major, hap_minor = haproxy_compatibility.get_haproxy_versions()
if not os.path.exists(init_path):
with os.fdopen(os.open(init_path, flags, mode), 'w') as text_file:
text = template.render(
peer_name=peer_name,
haproxy_pid=util.pid_path(listener_id),
haproxy_cmd=util.CONF.haproxy_amphora.haproxy_cmd,
haproxy_cfg=util.config_path(listener_id),
haproxy_user_group_cfg=consts.HAPROXY_USER_GROUP_CFG,
respawn_count=util.CONF.haproxy_amphora.respawn_count,
respawn_interval=(util.CONF.haproxy_amphora.
respawn_interval),
amphora_netns=consts.AMP_NETNS_SVC_PREFIX,
amphora_nsname=consts.AMPHORA_NAMESPACE,
HasIFUPAll=self._osutils.has_ifup_all(),
haproxy_major_version=hap_major,
haproxy_minor_version=hap_minor
)
text_file.write(text)
# Make sure the new service is enabled on boot
if init_system == consts.INIT_SYSTEMD:
util.run_systemctl_command(
consts.ENABLE, "haproxy-{list}".format(list=listener_id))
elif init_system == consts.INIT_SYSVINIT:
try:
subprocess.check_output(init_enable_cmd.split(),
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to enable haproxy-%(list)s service: "
"%(err)s %(out)s", {'list': listener_id, 'err': e,
'out': e.output})
return webob.Response(json=dict(
message="Error enabling haproxy-{0} service".format(
listener_id), details=e.output), status=500)
res = webob.Response(json={'message': 'OK'}, status=202)
res.headers['ETag'] = stream.get_md5()
return res
def _check_haproxy_status(self, listener_id):
if os.path.exists(util.pid_path(listener_id)):
if os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
return consts.ACTIVE
return consts.OFFLINE
def delete_listener(self, listener_id):
try:
self._check_listener_exists(listener_id)
except exceptions.HTTPException:
return webob.Response(json={'message': 'OK'})
# check if that haproxy is still running and if stop it
if os.path.exists(util.pid_path(listener_id)) and os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
cmd = "/usr/sbin/service haproxy-{0} stop".format(listener_id)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to stop haproxy-%s service: %s %s",
listener_id, e, e.output)
return webob.Response(json=dict(
message="Error stopping haproxy",
details=e.output), status=500)
# parse config and delete stats socket
try:
cfg = self._parse_haproxy_file(listener_id)
os.remove(cfg['stats_socket'])
except Exception:
pass
# Since this script should be deleted at LB delete time
# we can check for this path to see if VRRP is enabled
# on this amphora and not write the file if VRRP is not in use
if os.path.exists(util.keepalived_check_script_path()):
self.vrrp_check_script_update(
listener_id, action=consts.AMP_ACTION_STOP)
# delete the ssl files
try:
shutil.rmtree(self._cert_dir(listener_id))
except Exception:
pass
# disable the service
init_system = util.get_os_init_system()
init_path = util.init_path(listener_id, init_system)
if init_system == consts.INIT_SYSTEMD:
util.run_systemctl_command(
consts.DISABLE, "haproxy-{list}".format(
list=listener_id))
elif init_system == consts.INIT_SYSVINIT:
init_disable_cmd = "insserv -r {file}".format(file=init_path)
elif init_system != consts.INIT_UPSTART:
raise util.UnknownInitError()
if init_system == consts.INIT_SYSVINIT:
try:
subprocess.check_output(init_disable_cmd.split(),
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to disable haproxy-%(list)s service: "
"%(err)s %(out)s", {'list': listener_id, 'err': e,
'out': e.output})
return webob.Response(json=dict(
message="Error disabling haproxy-{0} service".format(
listener_id), details=e.output), status=500)
# delete the directory + init script for that listener
shutil.rmtree(util.haproxy_dir(listener_id))
if os.path.exists(init_path):
os.remove(init_path)
return webob.Response(json={'message': 'OK'})
def delete_listener(self, listener_id):
try:
self._check_listener_exists(listener_id)
except exceptions.HTTPException:
return webob.Response(json={'message': 'OK'})
# check if that haproxy is still running and if stop it
if os.path.exists(util.pid_path(listener_id)) and os.path.exists(
os.path.join('/proc', util.get_haproxy_pid(listener_id))):
cmd = "/usr/sbin/service haproxy-{0} stop".format(listener_id)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to stop haproxy-%s service: %s %s",
listener_id, e, e.output)
return webob.Response(json=dict(
message="Error stopping haproxy", details=e.output),
status=500)
# parse config and delete stats socket
try:
cfg = self._parse_haproxy_file(listener_id)
os.remove(cfg['stats_socket'])
except Exception:
pass
# Since this script should be deleted at LB delete time
# we can check for this path to see if VRRP is enabled
# on this amphora and not write the file if VRRP is not in use
if os.path.exists(util.keepalived_check_script_path()):
self.vrrp_check_script_update(listener_id,
action=consts.AMP_ACTION_STOP)
# delete the ssl files
try:
shutil.rmtree(self._cert_dir(listener_id))
except Exception:
pass
# disable the service
init_system = util.get_os_init_system()
init_path = util.init_path(listener_id, init_system)
if init_system == consts.INIT_SYSTEMD:
util.run_systemctl_command(
consts.DISABLE, "haproxy-{list}".format(list=listener_id))
elif init_system == consts.INIT_SYSVINIT:
init_disable_cmd = "insserv -r {file}".format(file=init_path)
elif init_system != consts.INIT_UPSTART:
raise util.UnknownInitError()
if init_system == consts.INIT_SYSVINIT:
try:
subprocess.check_output(init_disable_cmd.split(),
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error(
"Failed to disable haproxy-%(list)s service: "
"%(err)s %(out)s", {
'list': listener_id,
'err': e,
'out': e.output
})
return webob.Response(json=dict(
message="Error disabling haproxy-{0} service".format(
listener_id),
details=e.output),
status=500)
# delete the directory + init script for that listener
shutil.rmtree(util.haproxy_dir(listener_id))
if os.path.exists(init_path):
os.remove(init_path)
return webob.Response(json={'message': 'OK'})
def upload_haproxy_config(self, amphora_id, listener_id):
"""Upload the haproxy config
:param amphora_id: The id of the amphora to update
:param listener_id: The id of the listener
"""
stream = Wrapped(flask.request.stream)
# We have to hash here because HAProxy has a string length limitation
# in the configuration file "peer <peername>" lines
peer_name = octavia_utils.base64_sha1_string(amphora_id).rstrip('=')
if not os.path.exists(util.haproxy_dir(listener_id)):
os.makedirs(util.haproxy_dir(listener_id))
name = os.path.join(util.haproxy_dir(listener_id), 'haproxy.cfg.new')
flags = os.O_WRONLY | os.O_CREAT | os.O_TRUNC
# mode 00600
mode = stat.S_IRUSR | stat.S_IWUSR
with os.fdopen(os.open(name, flags, mode), 'wb') as file:
b = stream.read(BUFFER)
while (b):
file.write(b)
b = stream.read(BUFFER)
# use haproxy to check the config
cmd = "haproxy -c -L {peer} -f {config_file}".format(config_file=name,
peer=peer_name)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error(_LE("Failed to verify haproxy file: %s"), e)
os.remove(name) # delete file
return flask.make_response(
flask.jsonify(dict(message="Invalid request",
details=e.output)), 400)
# file ok - move it
os.rename(name, util.config_path(listener_id))
try:
init_system = util.get_os_init_system()
LOG.debug('Found init system: {0}'.format(init_system))
init_path = util.init_path(listener_id, init_system)
if init_system == consts.INIT_SYSTEMD:
template = SYSTEMD_TEMPLATE
init_enable_cmd = "systemctl enable haproxy-{list}".format(
list=listener_id)
elif init_system == consts.INIT_UPSTART:
template = UPSTART_TEMPLATE
elif init_system == consts.INIT_SYSVINIT:
template = SYSVINIT_TEMPLATE
init_enable_cmd = "insserv {file}".format(file=init_path)
else:
raise util.UnknownInitError()
except util.UnknownInitError:
LOG.error(_LE("Unknown init system found."))
return flask.make_response(
flask.jsonify(
dict(
message="Unknown init system in amphora",
details="The amphora image is running an unknown init "
"system. We can't create the init configuration "
"file for the load balancing process.")), 500)
if init_system == consts.INIT_SYSTEMD:
# mode 00644
mode = (stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IROTH)
else:
# mode 00755
mode = (stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP | stat.S_IROTH
| stat.S_IXOTH)
if not os.path.exists(init_path):
with os.fdopen(os.open(init_path, flags, mode), 'w') as text_file:
text = template.render(
peer_name=peer_name,
haproxy_pid=util.pid_path(listener_id),
haproxy_cmd=util.CONF.haproxy_amphora.haproxy_cmd,
haproxy_cfg=util.config_path(listener_id),
respawn_count=util.CONF.haproxy_amphora.respawn_count,
respawn_interval=(
util.CONF.haproxy_amphora.respawn_interval),
amphora_nsname=consts.AMPHORA_NAMESPACE,
HasIFUPAll=self._osutils.has_ifup_all())
text_file.write(text)
# Make sure the new service is enabled on boot
if init_system != consts.INIT_UPSTART:
try:
subprocess.check_output(init_enable_cmd.split(),
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error(
_LE("Failed to enable haproxy-%(list)s "
"service: %(err)s"), {
'list': listener_id,
'err': e
})
return flask.make_response(
flask.jsonify(
dict(message="Error enabling haproxy-{0} service".
format(listener_id),
details=e.output)), 500)
res = flask.make_response(flask.jsonify({'message': 'OK'}), 202)
res.headers['ETag'] = stream.get_md5()
return res
def upload_haproxy_config(self, amphora_id, listener_id):
"""Upload the haproxy config
:param amphora_id: The id of the amphora to update
:param listener_id: The id of the listener
"""
stream = Wrapped(flask.request.stream)
# We have to hash here because HAProxy has a string length limitation
# in the configuration file "peer <peername>" lines
peer_name = octavia_utils.base64_sha1_string(amphora_id).rstrip('=')
if not os.path.exists(util.haproxy_dir(listener_id)):
os.makedirs(util.haproxy_dir(listener_id))
name = os.path.join(util.haproxy_dir(listener_id), 'haproxy.cfg.new')
flags = os.O_WRONLY | os.O_CREAT | os.O_TRUNC
# mode 00600
mode = stat.S_IRUSR | stat.S_IWUSR
b = stream.read(BUFFER)
s_io = io.StringIO()
while b:
# Write haproxy configuration to StringIO
s_io.write(b.decode('utf8'))
b = stream.read(BUFFER)
# Since haproxy user_group is now auto-detected by the amphora agent,
# remove it from haproxy configuration in case it was provided
# by an older Octavia controller. This is needed in order to prevent
# a duplicate entry for 'group' in haproxy configuration, which will
# result an error when haproxy starts.
new_config = re.sub(r"\s+group\s.+", "", s_io.getvalue())
# Handle any haproxy version compatibility issues
new_config = haproxy_compatibility.process_cfg_for_version_compat(
new_config)
with os.fdopen(os.open(name, flags, mode), 'w') as file:
file.write(new_config)
# use haproxy to check the config
cmd = "haproxy -c -L {peer} -f {config_file} -f {haproxy_ug}".format(
config_file=name,
peer=peer_name,
haproxy_ug=consts.HAPROXY_USER_GROUP_CFG)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error("Failed to verify haproxy file: %s %s", e, e.output)
# Save the last config that failed validation for debugging
os.rename(name, ''.join([name, '-failed']))
return webob.Response(json=dict(message="Invalid request",
details=e.output),
status=400)
# file ok - move it
os.rename(name, util.config_path(listener_id))
try:
init_system = util.get_os_init_system()
LOG.debug('Found init system: %s', init_system)
init_path = util.init_path(listener_id, init_system)
if init_system == consts.INIT_SYSTEMD:
template = SYSTEMD_TEMPLATE
# Render and install the network namespace systemd service
util.install_netns_systemd_service()
util.run_systemctl_command(
consts.ENABLE, consts.AMP_NETNS_SVC_PREFIX + '.service')
elif init_system == consts.INIT_UPSTART:
template = UPSTART_TEMPLATE
elif init_system == consts.INIT_SYSVINIT:
template = SYSVINIT_TEMPLATE
init_enable_cmd = "insserv {file}".format(file=init_path)
else:
raise util.UnknownInitError()
except util.UnknownInitError:
LOG.error("Unknown init system found.")
return webob.Response(json=dict(
message="Unknown init system in amphora",
details="The amphora image is running an unknown init "
"system. We can't create the init configuration "
"file for the load balancing process."),
status=500)
if init_system == consts.INIT_SYSTEMD:
# mode 00644
mode = (stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IROTH)
else:
# mode 00755
mode = (stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP | stat.S_IROTH
| stat.S_IXOTH)
hap_major, hap_minor = haproxy_compatibility.get_haproxy_versions()
if not os.path.exists(init_path):
with os.fdopen(os.open(init_path, flags, mode), 'w') as text_file:
text = template.render(
peer_name=peer_name,
haproxy_pid=util.pid_path(listener_id),
haproxy_cmd=util.CONF.haproxy_amphora.haproxy_cmd,
haproxy_cfg=util.config_path(listener_id),
haproxy_user_group_cfg=consts.HAPROXY_USER_GROUP_CFG,
respawn_count=util.CONF.haproxy_amphora.respawn_count,
respawn_interval=(
util.CONF.haproxy_amphora.respawn_interval),
amphora_netns=consts.AMP_NETNS_SVC_PREFIX,
amphora_nsname=consts.AMPHORA_NAMESPACE,
HasIFUPAll=self._osutils.has_ifup_all(),
haproxy_major_version=hap_major,
haproxy_minor_version=hap_minor)
text_file.write(text)
# Make sure the new service is enabled on boot
if init_system == consts.INIT_SYSTEMD:
util.run_systemctl_command(
consts.ENABLE, "haproxy-{list}".format(list=listener_id))
elif init_system == consts.INIT_SYSVINIT:
try:
subprocess.check_output(init_enable_cmd.split(),
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.error(
"Failed to enable haproxy-%(list)s service: "
"%(err)s %(out)s", {
'list': listener_id,
'err': e,
'out': e.output
})
return webob.Response(json=dict(
message="Error enabling haproxy-{0} service".format(
listener_id),
details=e.output),
status=500)
res = webob.Response(json={'message': 'OK'}, status=202)
res.headers['ETag'] = stream.get_md5()
return res
def upload_haproxy_config(self, amphora_id, listener_id):
"""Upload the haproxy config
:param amphora_id: The id of the amphora to update
:param listener_id: The id of the listener
"""
stream = Wrapped(flask.request.stream)
# We have to hash here because HAProxy has a string length limitation
# in the configuration file "peer <peername>" lines
peer_name = octavia_utils.base64_sha1_string(amphora_id).rstrip('=')
if not os.path.exists(util.haproxy_dir(listener_id)):
os.makedirs(util.haproxy_dir(listener_id))
name = os.path.join(util.haproxy_dir(listener_id), 'haproxy.cfg.new')
flags = os.O_WRONLY | os.O_CREAT | os.O_TRUNC
# mode 00600
mode = stat.S_IRUSR | stat.S_IWUSR
with os.fdopen(os.open(name, flags, mode), 'w') as file:
b = stream.read(BUFFER)
while (b):
file.write(b)
b = stream.read(BUFFER)
# use haproxy to check the config
cmd = "haproxy -c -L {peer} -f {config_file}".format(config_file=name,
peer=peer_name)
try:
subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to verify haproxy file: %s", e)
os.remove(name) # delete file
return flask.make_response(flask.jsonify(dict(
message="Invalid request",
details=e.output)), 400)
# file ok - move it
os.rename(name, util.config_path(listener_id))
use_upstart = util.CONF.haproxy_amphora.use_upstart
file = util.init_path(listener_id)
# mode 00755
mode = (stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP |
stat.S_IROTH | stat.S_IXOTH)
if not os.path.exists(file):
with os.fdopen(os.open(file, flags, mode), 'w') as text_file:
template = (UPSTART_TEMPLATE if use_upstart
else SYSVINIT_TEMPLATE)
text = template.render(
peer_name=peer_name,
haproxy_pid=util.pid_path(listener_id),
haproxy_cmd=util.CONF.haproxy_amphora.haproxy_cmd,
haproxy_cfg=util.config_path(listener_id),
respawn_count=util.CONF.haproxy_amphora.respawn_count,
respawn_interval=(util.CONF.haproxy_amphora.
respawn_interval),
amphora_nsname=consts.AMPHORA_NAMESPACE
)
text_file.write(text)
if not use_upstart:
insrvcmd = ("insserv {file}".format(file=file))
try:
subprocess.check_output(insrvcmd.split(),
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
LOG.debug("Failed to make %(file)s executable: %(err)s",
{'file': file, 'err': e})
return flask.make_response(flask.jsonify(dict(
message="Error making file {0} executable".format(file),
details=e.output)), 500)
res = flask.make_response(flask.jsonify({
'message': 'OK'}), 202)
res.headers['ETag'] = stream.get_md5()
return res