def test_pid_file():
try:
import psutil
except:
warnings.warn('No psutil module present for this test')
return
wrapper = PlatformWrapper()
address = "tcp://127.0.0.1:{}".format(get_rand_port())
wrapper.startup_platform(address)
assert wrapper is not None
assert wrapper.is_running()
pid_file = os.path.join(wrapper.volttron_home, "VOLTTRON_PID")
assert os.path.exists(pid_file)
with open(pid_file, 'r') as pf:
assert psutil.pid_exists(int(pf.read().strip()))
wrapper.skip_cleanup = True
wrapper.shutdown_platform()
# give operating system enough time to update pids.
gevent.sleep(0.1)
assert not os.path.exists(pid_file)
# Check overwrite of pid file. In case last shutdown was not clean
with open(pid_file, 'w') as pf:
pf.write('abcd')
wrapper = PlatformWrapper()
address = "tcp://127.0.0.1:{}".format(get_rand_port())
wrapper.startup_platform(address)
assert wrapper is not None
assert wrapper.is_running()
pid_file = os.path.join(wrapper.volttron_home, "VOLTTRON_PID")
assert os.path.exists(pid_file)
with open(pid_file, 'r') as pf:
pid_str = pf.read().strip()
assert psutil.pid_exists(int(pid_str))
# test start-volttron script we don't start a second volttron process if one
# is already running
env = os.environ.copy()
env["VOLTTRON_HOME"] = wrapper.volttron_home
vsource_home = os.path.dirname(
os.path.dirname(os.path.dirname(os.path.realpath(__file__))))
process = Popen(["./start-volttron"],
cwd=vsource_home,
env=env,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE)
(output, error) = process.communicate()
assert process.returncode == 1
assert "VOLTTRON with process id " + pid_str + " is already running" in \
output
def get_n_volttron_instances(n, should_start=True, address_file=True):
get_n_volttron_instances.count = n
instances = []
vip_addresses = []
web_addresses = []
instances = []
addr_config = dict()
names = []
for i in range(0, n):
address = get_rand_vip()
web_address = "http://{}".format(get_rand_ip_and_port())
vip_addresses.append(address)
web_addresses.append(web_address)
nm = 'platform{}'.format(i + 1)
names.append(nm)
for i in range(0, n):
address = vip_addresses[i]
web_address = web_addresses[i]
wrapper = PlatformWrapper()
addr_file = os.path.join(wrapper.volttron_home,
'external_address.json')
if address_file:
with open(addr_file, 'w') as f:
json.dump(web_addresses, f)
gevent.sleep(.1)
wrapper.startup_platform(address,
bind_web_address=web_address,
instance_name=names[i],
setupmode=True)
wrapper.skip_cleanup = True
instances.append(wrapper)
gevent.sleep(11)
for i in range(0, n):
instances[i].shutdown_platform()
gevent.sleep(1)
# del instances[:]
for i in range(0, n):
address = vip_addresses.pop(0)
web_address = web_addresses.pop(0)
print address, web_address
instances[i].startup_platform(address,
bind_web_address=web_address,
instance_name=names[i])
instances[i].allow_all_connections()
gevent.sleep(11)
instances = instances if n > 1 else instances[0]
get_n_volttron_instances.instances = instances
return instances
def build_n_volttron_instances(n, bad_config=False, add_my_address=True):
build_n_volttron_instances.count = n
instances = []
vip_addresses = []
instances = []
addr_config = dict()
names = []
for i in range(0, n):
address = get_rand_vip()
vip_addresses.append(address)
nm = 'platform{}'.format(i + 1)
names.append(nm)
for i in range(0, n):
address = vip_addresses[i]
wrapper = PlatformWrapper()
wrapper.startup_platform(address, instance_name=names[i])
wrapper.skip_cleanup = True
instances.append(wrapper)
gevent.sleep(1)
for i in range(0, n):
instances[i].shutdown_platform()
for i in range(0, n):
addr_config.clear()
for j in range(0, n):
if j != i or (j == i and add_my_address):
name = names[j]
addr_config[name] = dict()
addr_config[name]['instance-name'] = names[j]
if bad_config:
addr_config[name]['vip-address123'] = vip_addresses[j]
else:
addr_config[name]['vip-address'] = vip_addresses[j]
addr_config[name]['serverkey'] = instances[j].serverkey
address_file = os.path.join(instances[i].volttron_home,
'external_platform_discovery.json')
if address_file:
with open(address_file, 'w') as f:
json.dump(addr_config, f)
gevent.sleep(1)
for i in range(0, n):
address = vip_addresses.pop(0)
instances[i].startup_platform(address, instance_name=names[i])
instances[i].allow_all_connections()
gevent.sleep(11)
instances = instances if n > 1 else instances[0]
build_n_volttron_instances.instances = instances
return instances