def world_of_docker():
"""Pulls and starts a container from a random Docker image in the top 100."""
with open('repos.json') as data_file:
repos = json.load(data_file)
client = Client(**kwargs_from_env())
random_repo = random.choice(repos)['name']
click.echo('Hmmmmmm.... how about %s? Everybody likes %s!' %
(random_repo, random_repo))
for line in client.pull(random_repo, stream=True):
click.echo(json.loads(line)['status'])
click.echo('Now let\'s just start up a container here...')
container = client.create_container(image=random_repo)
client.start(container=container.get('Id'))
container_name = client.inspect_container(
container['Id'])['Name'].strip('/')
click.echo('Up and running! Enjoy your new %s container, %s' %
(random_repo, container_name))
def run(self, ssl_env_name='STUNNEL_SSL'):
"""
Run a container scan for a variable containing a certificate env dictionary
Args:
ssl_env_name(string): The string containing the certificate env
"""
cli = Client(base_url='unix://var/run/docker.sock')
for container in cli.containers():
container_details = cli.inspect_container(container.get('Id'))
container_envs = container_details.get('Config').get('Env')
env_ssl = [env for env in container_envs if ssl_env_name in env]
if len(env_ssl) > 0:
env_cert = env_ssl[0].split('=', 1)[1]
env_json = json.loads(env_cert)
raw_ssl = env_json.get('cert')
cert = c.load_certificate(c.FILETYPE_PEM, raw_ssl)
not_after = cert.get_notAfter()
not_after_date = self.get_cert_time(not_after)
has_expired = cert.has_expired()
signature_algorithm = cert.get_signature_algorithm()
self.logger.info("Found stunnel container envs",
extra={
'notAfter':
'{}'.format(not_after),
'notAfterDate':
'{}'.format(not_after_date),
'hasExpired':
'{}'.format(has_expired),
'containerId':
'{}'.format(container.get('Id')),
'signatureAlgorithm':
'{}'.format(signature_algorithm)
})
def run(self,
ssl_env_name='STUNNEL_SSL'):
"""
Run a container scan for a variable containing a certificate env dictionary
Args:
ssl_env_name(string): The string containing the certificate env
"""
cli = Client(base_url='unix://var/run/docker.sock')
for container in cli.containers():
container_details = cli.inspect_container(container.get('Id'))
container_envs = container_details.get('Config').get('Env')
env_ssl = [ env for env in container_envs if ssl_env_name in env]
if len(env_ssl) > 0:
env_cert = env_ssl[0].split('=', 1)[1]
env_json = json.loads(env_cert)
raw_ssl = env_json.get('cert')
cert = c.load_certificate(c.FILETYPE_PEM, raw_ssl)
not_after = cert.get_notAfter()
not_after_date = self.get_cert_time(not_after)
has_expired = cert.has_expired()
signature_algorithm = cert.get_signature_algorithm()
self.logger.info("Found stunnel container envs",
extra={'notAfter': '{}'.format(not_after),
'notAfterDate': '{}'.format(not_after_date),
'hasExpired': '{}'.format(has_expired),
'containerId': '{}'.format(container.get('Id')),
'signatureAlgorithm': '{}'.format(signature_algorithm)})
def deploy_instance(docker_api_endpoint, service_name, env_vars, revision, memory, cpu, ports=None):
c = DockerClient(docker_api_endpoint)
res = c.create_container(
image="docker-service-provisioner/%s:v%s" % (service_name, revision),
environment=env_vars,
# TODO: Implement memory and CPU
#mem_limit=memory,
)
container_id = res['Id']
c.start(container_id, port_bindings={"%s/tcp" % p: [{'HostIp': '', 'HostPort': ''}] for p in ports})
# Use inspect_container, as c.ports() doesn't seem to work for some reason
container = c.inspect_container(container_id)
return container['ID'], {p: container['NetworkSettings']['Ports']["%s/tcp" % p][0]['HostPort'] for p in ports}
class Runner:
"""
This class is in charge of loading test suites and runs them on different environments
"""
STOP_TIMEOUT = 3
def __init__(self, cfg):
from docker.client import Client
from docker.utils import kwargs_from_env
self.config = cfg
docker_kwargs = kwargs_from_env()
docker_kwargs['tls'].assert_hostname = False
self.docker = Client(**docker_kwargs)
def run(self, build, *tests):
"""
Run all the test suites passed in as parameters on the given build
This method will start a container of the build, run the tests and stop it
"""
from docker.utils import create_host_config
print("Running tests on {}".format(build.name))
ports = self.config['environment']['ports']
host = self.config['global'].get('docker_host', os.getenv('DOCKER_HOST').split('/')[-1].split(':')[0])
container = self.docker.create_container(
image=build.docker_tag,
command='/bin/bash -c "nc -l 8080"',
ports=ports,
host_config=create_host_config(port_bindings=dict(zip(ports, [None] * len(ports))))
).get('Id')
self.docker.start(container)
info = self.docker.inspect_container(container)
port_bindings = {port: bind[0]['HostPort'] for port, bind in info['NetworkSettings']['Ports'].items()}
for test in tests:
test.run(host, port_bindings, build.context)
self.docker.stop(container, timeout=self.STOP_TIMEOUT)
log_file_path = os.path.join(self.config['global'].get('logs_dir', '/tmp'), '{}.log'.format(build.name))
with open(log_file_path, 'wb') as logs:
logs.write(self.docker.logs(container, stdout=True, stderr=True, stream=False))
print("Container logs wrote to {}".format(log_file_path))
class DockerDaemon():
def __init__(self, db):
self.client = Client()
self.db = db
def get_events(self):
events = self.client.events(decode=True)
for event in events:
if event:
if event.get('status') in ['start', 'die']:
self.send_container_status(event)
def send_container_status(self, event):
event['container'] = self.get_container(event.get('id'))
key = '%s_%s' % (event.get('id'), event.get('status'))
self.db.set(key, event)
def get_container(self, id):
return self.client.inspect_container(id)
class DockerController(object):
def _load_config(self):
with open('./config.yaml') as fh:
config = yaml.load(fh)
return config
def __init__(self):
config = self._load_config()
self.LOCAL_REDIS_HOST = 'netcapsule_redis_1'
self.REDIS_HOST = os.environ.get('REDIS_HOST', self.LOCAL_REDIS_HOST)
self.PYWB_HOST = os.environ.get('PYWB_HOST', 'netcapsule_pywb_1')
self.C_EXPIRE_TIME = config['init_container_expire_secs']
self.Q_EXPIRE_TIME = config['queue_expire_secs']
self.REMOVE_EXP_TIME = config['remove_expired_secs']
self.VERSION = config['api_version']
self.VNC_PORT = config['vnc_port']
self.CMD_PORT = config['cmd_port']
self.MAX_CONT = config['max_containers']
self.image_prefix = config['image_prefix']
self.browser_list = config['browsers']
self.browser_paths = {}
for browser in self.browser_list:
path = browser['path']
if path in self.browser_paths:
raise Exception('Already a browser for path {0}'.format(path))
self.browser_paths[path] = browser
self.default_browser = config['default_browser']
self.redirect_paths = config['redirect_paths']
self.randompages = []
try:
with open(config['random_page_file']) as fh:
self.randompages = list([line.rstrip() for line in fh])
except Exception as e:
print(e)
self.redis = redis.StrictRedis(host=self.REDIS_HOST)
self.redis.setnx('next_client', '1')
self.redis.setnx('max_containers', self.MAX_CONT)
self.redis.setnx('num_containers', '0')
self.redis.setnx('cpu_auto_adjust', 5.5)
throttle_samples = config['throttle_samples']
self.redis.setnx('throttle_samples', throttle_samples)
throttle_max_avg = config['throttle_max_avg']
self.redis.setnx('throttle_max_avg', throttle_max_avg)
self.redis.setnx('container_expire_secs',
config['full_container_expire_secs'])
self.T_EXPIRE_TIME = config['throttle_expire_secs']
if os.path.exists('/var/run/docker.sock'):
self.cli = Client(base_url='unix://var/run/docker.sock',
version=self.VERSION)
else:
kwargs = kwargs_from_env(assert_hostname=False)
kwargs['version'] = self.VERSION
self.cli = Client(**kwargs)
def _get_host_port(self, info, port, default_host):
info = info['NetworkSettings']['Ports'][str(port) + '/tcp']
info = info[0]
host = info['HostIp']
if host == '0.0.0.0' and default_host:
host = default_host
return host + ':' + info['HostPort']
def timed_new_container(self, browser, env, host, client_id):
start = time.time()
info = self.new_container(browser, env, host)
end = time.time()
dur = end - start
time_key = 't:' + client_id
self.redis.setex(time_key, self.T_EXPIRE_TIME, dur)
throttle_samples = int(self.redis.get('throttle_samples'))
print('INIT DUR: ' + str(dur))
self.redis.lpush('init_timings', time_key)
self.redis.ltrim('init_timings', 0, throttle_samples - 1)
return info
def new_container(self, browser_id, env=None, default_host=None):
browser = self.browser_paths.get(browser_id)
# get default browser
if not browser:
browser = self.browser_paths.get(self.default_browser)
if browser.get('req_width'):
env['SCREEN_WIDTH'] = browser.get('req_width')
if browser.get('req_height'):
env['SCREEN_HEIGHT'] = browser.get('req_height')
container = self.cli.create_container(
image=self.image_prefix + '/' + browser['id'],
ports=[self.VNC_PORT, self.CMD_PORT],
environment=env,
)
short_id = None
try:
id_ = container.get('Id')
short_id = id_[:12]
res = self.cli.start(
container=id_,
port_bindings={
self.VNC_PORT: None,
self.CMD_PORT: None
},
volumes_from=['netcapsule_shared_data_1'],
network_mode='netcapsule',
)
info = self.cli.inspect_container(id_)
ip = info['NetworkSettings']['IPAddress']
if not ip:
ip = info['NetworkSettings']['Networks']['netcapsule'][
'IPAddress']
#self.redis.hset('all_containers', short_id, ip)
self.redis.incr('num_containers')
self.redis.setex('c:' + short_id, self.C_EXPIRE_TIME, 1)
return {
'vnc_host': self._get_host_port(info, self.VNC_PORT,
default_host),
'cmd_host': self._get_host_port(info, self.CMD_PORT,
default_host),
}
except Exception as e:
if short_id:
self.remove_container(short_id)
traceback.print_exc(e)
return {}
def remove_container(self, short_id, ip=None):
print('REMOVING ' + short_id)
try:
self.cli.remove_container(short_id, force=True)
except Exception as e:
print(e)
#self.redis.hdel('all_containers', short_id)
self.redis.delete('c:' + short_id)
if ip:
ip_keys = self.redis.keys(ip + ':*')
for key in ip_keys:
self.redis.delete(key)
def remove_expired(self):
print('Start Expired Check')
while True:
try:
value = self.redis.blpop('remove_q', 1000)
if not value:
continue
short_id, ip = value[1].split(' ')
self.remove_container(short_id, ip)
self.redis.decr('num_containers')
except Exception as e:
traceback.print_exc(e)
def check_nodes(self):
print('Check Nodes')
try:
scale = self.redis.get('cpu_auto_adjust')
if not scale:
return
info = self.cli.info()
cpus = int(info.get('NCPU', 0))
if cpus <= 1:
return
total = int(float(scale) * cpus)
self.redis.set('max_containers', total)
except Exception as e:
print(e)
def add_new_client(self):
client_id = self.redis.incr('clients')
enc_id = base64.b64encode(os.urandom(27))
self.redis.setex('cm:' + enc_id, self.Q_EXPIRE_TIME, client_id)
self.redis.setex('q:' + str(client_id), self.Q_EXPIRE_TIME, 1)
return enc_id, client_id
def am_i_next(self, enc_id):
client_id = None
if enc_id:
self.redis.expire('cm:' + enc_id, self.Q_EXPIRE_TIME)
client_id = self.redis.get('cm:' + enc_id)
if not client_id:
enc_id, client_id = self.add_new_client()
client_id = int(client_id)
next_client = int(self.redis.get('next_client'))
# not next client
if client_id != next_client:
# if this client expired, delete it from queue
if not self.redis.get('q:' + str(next_client)):
print('skipping expired', next_client)
self.redis.incr('next_client')
# missed your number somehow, get a new one!
if client_id < next_client:
enc_id, client_id = self.add_new_client()
diff = client_id - next_client
if self.throttle():
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
#num_containers = self.redis.hlen('all_containers')
num_containers = int(self.redis.get('num_containers'))
max_containers = self.redis.get('max_containers')
max_containers = int(
max_containers) if max_containers else self.MAX_CONT
if diff <= (max_containers - num_containers):
self.redis.incr('next_client')
return enc_id, -1
else:
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
def throttle(self):
timings = self.redis.lrange('init_timings', 0, -1)
if not timings:
return False
timings = self.redis.mget(*timings)
avg = 0
count = 0
for val in timings:
if val is not None:
avg += float(val)
count += 1
if count == 0:
return False
avg = avg / count
print('AVG: ', avg)
throttle_max_avg = float(self.redis.get('throttle_max_avg'))
if avg >= throttle_max_avg:
print('Throttling, too slow...')
return True
return False
def do_init(self, browser, url, ts, host, client_id):
env = {}
env['URL'] = url
env['TS'] = ts
env['SCREEN_WIDTH'] = os.environ.get('SCREEN_WIDTH')
env['SCREEN_HEIGHT'] = os.environ.get('SCREEN_HEIGHT')
env['REDIS_HOST'] = dc.REDIS_HOST
env['PYWB_HOST_PORT'] = dc.PYWB_HOST + ':8080'
env['BROWSER'] = browser
info = self.timed_new_container(browser, env, host, client_id)
info['queue'] = 0
return info
def get_randompage(self):
if not self.randompages:
return '/'
url, ts = random.choice(self.randompages).split(' ', 1)
print(url, ts)
path = self.get_random_browser()
return '/' + path + '/' + ts + '/' + url
def get_random_browser(self):
while True:
id_ = random.choice(self.browser_paths.keys())
if self.browser_paths[id_].get('skip_random'):
continue
return id_
class DockerController(object):
def _load_config(self):
with open('./config.yaml') as fh:
config = yaml.load(fh)
return config
def __init__(self):
config = self._load_config()
self.LOCAL_REDIS_HOST = 'netcapsule_redis_1'
self.REDIS_HOST = os.environ.get('REDIS_HOST', self.LOCAL_REDIS_HOST)
self.PYWB_HOST = os.environ.get('PYWB_HOST', 'netcapsule_pywb_1')
self.C_EXPIRE_TIME = config['init_container_expire_secs']
self.Q_EXPIRE_TIME = config['queue_expire_secs']
self.REMOVE_EXP_TIME = config['remove_expired_secs']
self.VERSION = config['api_version']
self.VNC_PORT = config['vnc_port']
self.CMD_PORT = config['cmd_port']
self.MAX_CONT = config['max_containers']
self.image_prefix = config['image_prefix']
self.browser_list = config['browsers']
self.browser_paths = {}
for browser in self.browser_list:
path = browser['path']
if path in self.browser_paths:
raise Exception('Already a browser for path {0}'.format(path))
self.browser_paths[path] = browser
self.default_browser = config['default_browser']
self.redirect_paths = config['redirect_paths']
self.randompages = []
try:
with open(config['random_page_file']) as fh:
self.randompages = list([line.rstrip() for line in fh])
except Exception as e:
print(e)
self.redis = redis.StrictRedis(host=self.REDIS_HOST)
self.redis.setnx('next_client', '1')
self.redis.setnx('max_containers', self.MAX_CONT)
self.redis.setnx('num_containers', '0')
self.redis.setnx('cpu_auto_adjust', 5.5)
throttle_samples = config['throttle_samples']
self.redis.setnx('throttle_samples', throttle_samples)
throttle_max_avg = config['throttle_max_avg']
self.redis.setnx('throttle_max_avg', throttle_max_avg)
self.redis.setnx('container_expire_secs',
config['full_container_expire_secs'])
self.T_EXPIRE_TIME = config['throttle_expire_secs']
if os.path.exists('/var/run/docker.sock'):
self.cli = Client(base_url='unix://var/run/docker.sock',
version=self.VERSION)
else:
kwargs = kwargs_from_env(assert_hostname=False)
kwargs['version'] = self.VERSION
self.cli = Client(**kwargs)
def _get_host_port(self, info, port, default_host):
info = info['NetworkSettings']['Ports'][str(port) + '/tcp']
info = info[0]
host = info['HostIp']
if host == '0.0.0.0' and default_host:
host = default_host
return host + ':' + info['HostPort']
def timed_new_container(self, browser, env, host, client_id):
start = time.time()
info = self.new_container(browser, env, host)
end = time.time()
dur = end - start
time_key = 't:' + client_id
self.redis.setex(time_key, self.T_EXPIRE_TIME, dur)
throttle_samples = int(self.redis.get('throttle_samples'))
print('INIT DUR: ' + str(dur))
self.redis.lpush('init_timings', time_key)
self.redis.ltrim('init_timings', 0, throttle_samples - 1)
return info
def new_container(self, browser_id, env=None, default_host=None):
browser = self.browser_paths.get(browser_id)
# get default browser
if not browser:
browser = self.browser_paths.get(self.default_browser)
container = self.cli.create_container(image=self.image_prefix + '/' + browser['id'],
ports=[self.VNC_PORT, self.CMD_PORT],
environment=env,
)
short_id = None
try:
id_ = container.get('Id')
short_id = id_[:12]
res = self.cli.start(container=id_,
port_bindings={self.VNC_PORT: None, self.CMD_PORT: None},
volumes_from=['netcapsule_shared_data_1'],
network_mode='netcapsule',
)
info = self.cli.inspect_container(id_)
ip = info['NetworkSettings']['IPAddress']
if not ip:
ip = info['NetworkSettings']['Networks']['netcapsule']['IPAddress']
#self.redis.hset('all_containers', short_id, ip)
self.redis.incr('num_containers')
self.redis.setex('c:' + short_id, self.C_EXPIRE_TIME, 1)
return {'vnc_host': self._get_host_port(info, self.VNC_PORT, default_host),
'cmd_host': self._get_host_port(info, self.CMD_PORT, default_host),
}
except Exception as e:
if short_id:
self.remove_container(short_id)
traceback.print_exc(e)
return {}
def remove_container(self, short_id, ip=None):
print('REMOVING ' + short_id)
try:
self.cli.remove_container(short_id, force=True)
except Exception as e:
print(e)
#self.redis.hdel('all_containers', short_id)
self.redis.delete('c:' + short_id)
if ip:
ip_keys = self.redis.keys(ip + ':*')
for key in ip_keys:
self.redis.delete(key)
def remove_expired(self):
print('Start Expired Check')
while True:
try:
value = self.redis.blpop('remove_q', 1000)
if not value:
continue
short_id, ip = value[1].split(' ')
self.remove_container(short_id, ip)
self.redis.decr('num_containers')
except Exception as e:
traceback.print_exc(e)
def check_nodes(self):
print('Check Nodes')
try:
scale = self.redis.get('cpu_auto_adjust')
if not scale:
return
info = self.cli.info()
cpus = int(info.get('NCPU', 0))
if cpus <= 1:
return
total = int(float(scale) * cpus)
self.redis.set('max_containers', total)
except Exception as e:
print(e)
def add_new_client(self):
client_id = self.redis.incr('clients')
enc_id = base64.b64encode(os.urandom(27))
self.redis.setex('cm:' + enc_id, self.Q_EXPIRE_TIME, client_id)
self.redis.setex('q:' + str(client_id), self.Q_EXPIRE_TIME, 1)
return enc_id, client_id
def am_i_next(self, enc_id):
client_id = None
if enc_id:
self.redis.expire('cm:' + enc_id, self.Q_EXPIRE_TIME)
client_id = self.redis.get('cm:' + enc_id)
if not client_id:
enc_id, client_id = self.add_new_client()
client_id = int(client_id)
next_client = int(self.redis.get('next_client'))
# not next client
if client_id != next_client:
# if this client expired, delete it from queue
if not self.redis.get('q:' + str(next_client)):
print('skipping expired', next_client)
self.redis.incr('next_client')
# missed your number somehow, get a new one!
if client_id < next_client:
enc_id, client_id = self.add_new_client()
diff = client_id - next_client
if self.throttle():
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
#num_containers = self.redis.hlen('all_containers')
num_containers = int(self.redis.get('num_containers'))
max_containers = self.redis.get('max_containers')
max_containers = int(max_containers) if max_containers else self.MAX_CONT
if diff <= (max_containers - num_containers):
self.redis.incr('next_client')
return enc_id, -1
else:
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
def throttle(self):
timings = self.redis.lrange('init_timings', 0, -1)
if not timings:
return False
timings = self.redis.mget(*timings)
avg = 0
count = 0
for val in timings:
if val is not None:
avg += float(val)
count += 1
if count == 0:
return False
avg = avg / count
print('AVG: ', avg)
throttle_max_avg = float(self.redis.get('throttle_max_avg'))
if avg >= throttle_max_avg:
print('Throttling, too slow...')
return True
return False
def do_init(self, browser, url, ts, host, client_id):
env = {}
env['URL'] = url
env['TS'] = ts
env['SCREEN_WIDTH'] = os.environ.get('SCREEN_WIDTH')
env['SCREEN_HEIGHT'] = os.environ.get('SCREEN_HEIGHT')
env['REDIS_HOST'] = dc.REDIS_HOST
env['PYWB_HOST_PORT'] = dc.PYWB_HOST + ':8080'
env['BROWSER'] = browser
info = self.timed_new_container(browser, env, host, client_id)
info['queue'] = 0
return info
def get_randompage(self):
if not self.randompages:
return '/'
url, ts = random.choice(self.randompages).split(' ', 1)
print(url, ts)
path = random.choice(self.browser_paths.keys())
return '/' + path + '/' + ts + '/' + url
class DockerController(object):
def _load_config(self):
with open('./config.yaml') as fh:
config = yaml.load(fh)
return config
def __init__(self):
config = self._load_config()
self.REDIS_HOST = config['redis_host']
self.PYWB_HOST = config['pywb_host']
self.C_EXPIRE_TIME = config['container_expire_secs']
self.Q_EXPIRE_TIME = config['queue_expire_secs']
self.REMOVE_EXP_TIME = config['remove_expired_secs']
self.VERSION = config['api_version']
self.VNC_PORT = config['vnc_port']
self.CMD_PORT = config['cmd_port']
self.image_prefix = config['image_prefix']
self.browsers = config['browsers']
self.redis = redis.StrictRedis(host=self.REDIS_HOST)
self.redis.setnx('next_client', '1')
if os.path.exists('/var/run/docker.sock'):
self.cli = Client(base_url='unix://var/run/docker.sock',
version=self.VERSION)
else:
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
kwargs['version'] = self.VERSION
self.cli = Client(**kwargs)
def new_container(self, browser, env=None):
tag = self.browsers.get(browser)
# get default browser
if not tag:
tag = self.browsers['']
container = self.cli.create_container(image=self.image_prefix + '/' + tag,
ports=[self.VNC_PORT, self.CMD_PORT],
environment=env,
)
id_ = container.get('Id')
res = self.cli.start(container=id_,
port_bindings={self.VNC_PORT: None, self.CMD_PORT: None},
links={self.PYWB_HOST: self.PYWB_HOST,
self.REDIS_HOST: self.REDIS_HOST},
volumes_from=['netcapsule_shared_data_1'],
)
vnc_port = self.cli.port(id_, self.VNC_PORT)
vnc_port = vnc_port[0]['HostPort']
cmd_port = self.cli.port(id_, self.CMD_PORT)
cmd_port = cmd_port[0]['HostPort']
info = self.cli.inspect_container(id_)
ip = info['NetworkSettings']['IPAddress']
short_id = id_[:12]
self.redis.hset('all_containers', short_id, ip)
self.redis.setex('c:' + short_id, self.C_EXPIRE_TIME, 1)
return vnc_port, cmd_port
def remove_container(self, short_id, ip):
print('REMOVING ' + short_id)
try:
self.cli.remove_container(short_id, force=True)
except Exception as e:
print(e)
self.redis.hdel('all_containers', short_id)
self.redis.delete('c:' + short_id)
ip_keys = self.redis.keys(ip +':*')
for key in ip_keys:
self.redis.delete(key)
def remove_all(self, check_expired=False):
all_containers = self.redis.hgetall('all_containers')
for short_id, ip in all_containers.iteritems():
if check_expired:
remove = not self.redis.get('c:' + short_id)
else:
remove = True
if remove:
self.remove_container(short_id, ip)
def add_new_client(self):
#client_id = base64.b64encode(os.urandom(27))
#self.redis.rpush('q:clients', client_id)
client_id = self.redis.incr('clients')
self.redis.setex('q:' + str(client_id), self.Q_EXPIRE_TIME, 1)
return client_id
def am_i_next(self, client_id):
next_client = int(self.redis.get('next_client'))
# not next client
if next_client != client_id:
# if this client expired, delete it from queue
if not self.redis.get('q:' + str(next_client)):
print('skipping expired', next_client)
self.redis.incr('next_client')
# missed your number somehow, get a new one!
if client_id < next_client:
client_id = self.add_new_client()
else:
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return client_id, client_id - next_client
# not avail yet
num_containers = self.redis.hlen('all_containers')
if num_containers >= MAX_CONT:
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return client_id, client_id - next_client
self.redis.incr('next_client')
return client_id, -1
class DockerController(object):
def _load_config(self):
with open("./config.yaml") as fh:
config = yaml.load(fh)
return config
def __init__(self):
config = self._load_config()
self.LOCAL_REDIS_HOST = "netcapsule_redis_1"
self.REDIS_HOST = os.environ.get("REDIS_HOST", self.LOCAL_REDIS_HOST)
self.PYWB_HOST = os.environ.get("PYWB_HOST", "netcapsule_pywb_1")
self.C_EXPIRE_TIME = config["init_container_expire_secs"]
self.Q_EXPIRE_TIME = config["queue_expire_secs"]
self.REMOVE_EXP_TIME = config["remove_expired_secs"]
self.VERSION = config["api_version"]
self.VNC_PORT = config["vnc_port"]
self.CMD_PORT = config["cmd_port"]
self.MAX_CONT = config["max_containers"]
self.image_prefix = config["image_prefix"]
self.browser_list = config["browsers"]
self.browser_paths = {}
for browser in self.browser_list:
path = browser["path"]
if path in self.browser_paths:
raise Exception("Already a browser for path {0}".format(path))
self.browser_paths[path] = browser
self.default_browser = config["default_browser"]
self.redirect_paths = config["redirect_paths"]
self.randompages = []
try:
with open(config["random_page_file"]) as fh:
self.randompages = list([line.rstrip() for line in fh])
except Exception as e:
print(e)
self.redis = redis.StrictRedis(host=self.REDIS_HOST)
self.redis.setnx("next_client", "1")
self.redis.setnx("max_containers", self.MAX_CONT)
throttle_samples = config["throttle_samples"]
self.redis.setnx("throttle_samples", throttle_samples)
throttle_max_avg = config["throttle_max_avg"]
self.redis.setnx("throttle_max_avg", throttle_max_avg)
self.redis.setnx("container_expire_secs", config["full_container_expire_secs"])
self.T_EXPIRE_TIME = config["throttle_expire_secs"]
if os.path.exists("/var/run/docker.sock"):
self.cli = Client(base_url="unix://var/run/docker.sock", version=self.VERSION)
else:
kwargs = kwargs_from_env(assert_hostname=False)
kwargs["version"] = self.VERSION
self.cli = Client(**kwargs)
def _get_host_port(self, info, port, default_host):
info = info["NetworkSettings"]["Ports"][str(port) + "/tcp"]
info = info[0]
host = info["HostIp"]
if host == "0.0.0.0" and default_host:
host = default_host
return host + ":" + info["HostPort"]
def timed_new_container(self, browser, env, host, client_id):
start = time.time()
info = dc.new_container(browser, env, host)
end = time.time()
dur = end - start
time_key = "t:" + client_id
self.redis.setex(time_key, self.T_EXPIRE_TIME, dur)
throttle_samples = int(self.redis.get("throttle_samples"))
print("INIT DUR: " + str(dur))
self.redis.lpush("init_timings", time_key)
self.redis.ltrim("init_timings", 0, throttle_samples - 1)
return info
def new_container(self, browser_id, env=None, default_host=None):
browser = self.browser_paths.get(browser_id)
# get default browser
if not browser:
browser = self.browser_paths.get(self.default_browser)
container = self.cli.create_container(
image=self.image_prefix + "/" + browser["id"], ports=[self.VNC_PORT, self.CMD_PORT], environment=env
)
short_id = None
try:
id_ = container.get("Id")
short_id = id_[:12]
res = self.cli.start(
container=id_,
port_bindings={self.VNC_PORT: None, self.CMD_PORT: None},
volumes_from=["netcapsule_shared_data_1"],
network_mode="netcapsule",
)
info = self.cli.inspect_container(id_)
ip = info["NetworkSettings"]["IPAddress"]
if not ip:
ip = info["NetworkSettings"]["Networks"]["netcapsule"]["IPAddress"]
self.redis.hset("all_containers", short_id, ip)
self.redis.setex("c:" + short_id, self.C_EXPIRE_TIME, 1)
return {
"vnc_host": self._get_host_port(info, self.VNC_PORT, default_host),
"cmd_host": self._get_host_port(info, self.CMD_PORT, default_host),
}
except Exception as e:
if short_id:
self.remove_container(short_id)
traceback.print_exc(e)
return {}
def remove_container(self, short_id, ip=None):
print("REMOVING " + short_id)
try:
self.cli.remove_container(short_id, force=True)
except Exception as e:
traceback.print_exc(e)
self.redis.hdel("all_containers", short_id)
self.redis.delete("c:" + short_id)
if ip:
ip_keys = self.redis.keys(ip + ":*")
for key in ip_keys:
self.redis.delete(key)
def remove_all(self, check_expired=False):
all_containers = self.redis.hgetall("all_containers")
for short_id, ip in all_containers.iteritems():
if check_expired:
remove = not self.redis.get("c:" + short_id)
else:
remove = True
if remove:
self.remove_container(short_id, ip)
def add_new_client(self):
client_id = self.redis.incr("clients")
enc_id = base64.b64encode(os.urandom(27))
self.redis.setex("cm:" + enc_id, self.Q_EXPIRE_TIME, client_id)
self.redis.setex("q:" + str(client_id), self.Q_EXPIRE_TIME, 1)
return enc_id, client_id
def am_i_next(self, enc_id):
client_id = None
if enc_id:
self.redis.expire("cm:" + enc_id, self.Q_EXPIRE_TIME)
client_id = self.redis.get("cm:" + enc_id)
if not client_id:
enc_id, client_id = dc.add_new_client()
if not self.throttle():
self.redis.incr("next_client")
return enc_id, -1
client_id = int(client_id)
next_client = int(self.redis.get("next_client"))
# not next client
if client_id > next_client:
# if this client expired, delete it from queue
if not self.redis.get("q:" + str(next_client)):
print("skipping expired", next_client)
self.redis.incr("next_client")
# missed your number somehow, get a new one!
if client_id < next_client:
enc_id, client_id = self.add_new_client()
else:
self.redis.expire("q:" + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
# if true, container not avail yet
# if self.throttle():
self.redis.expire("q:" + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
# self.redis.incr('next_client')
# return enc_id, -1
def throttle(self):
num_containers = self.redis.hlen("all_containers")
max_containers = self.redis.get("max_containers")
max_containers = int(max_containers) if max_containers else self.MAX_CONT
if num_containers >= max_containers:
return True
timings = self.redis.lrange("init_timings", 0, -1)
if not timings:
return False
timings = self.redis.mget(*timings)
avg = 0
count = 0
for val in timings:
if val is not None:
avg += float(val)
count += 1
if count == 0:
return False
avg = avg / count
print("AVG: ", avg)
throttle_max_avg = float(self.redis.get("throttle_max_avg"))
if avg >= throttle_max_avg:
print("Throttling, too slow...")
return True
return False
def do_init(self, browser, url, ts, host, client_id):
env = {}
env["URL"] = url
env["TS"] = ts
env["SCREEN_WIDTH"] = os.environ.get("SCREEN_WIDTH")
env["SCREEN_HEIGHT"] = os.environ.get("SCREEN_HEIGHT")
env["REDIS_HOST"] = dc.REDIS_HOST
env["PYWB_HOST_PORT"] = dc.PYWB_HOST + ":8080"
env["BROWSER"] = browser
info = self.timed_new_container(browser, env, host, client_id)
info["queue"] = 0
return info
def get_randompage(self):
if not self.randompages:
return "/"
url, ts = random.choice(self.randompages).split(" ", 1)
print(url, ts)
path = random.choice(self.browser_paths.keys())
return "/" + path + "/" + ts + "/" + url
class DockerController(object):
def _load_config(self):
with open('./config.yaml') as fh:
config = yaml.load(fh)
return config
def __init__(self):
config = self._load_config()
self.LOCAL_REDIS_HOST = 'netcapsule_redis_1'
self.REDIS_HOST = os.environ.get('REDIS_HOST', self.LOCAL_REDIS_HOST)
self.PYWB_HOST = os.environ.get('PYWB_HOST', 'netcapsule_pywb_1')
self.C_EXPIRE_TIME = config['init_container_expire_secs']
self.Q_EXPIRE_TIME = config['queue_expire_secs']
self.REMOVE_EXP_TIME = config['remove_expired_secs']
self.VERSION = config['api_version']
self.VNC_PORT = config['vnc_port']
self.CMD_PORT = config['cmd_port']
self.MAX_CONT = config['max_containers']
self.image_prefix = config['image_prefix']
self.browser_list = config['browsers']
self.browser_paths = {}
for browser in self.browser_list:
path = browser['path']
if path in self.browser_paths:
raise Exception('Already a browser for path {0}'.format(path))
self.browser_paths[path] = browser
self.default_browser = config['default_browser']
self.redirect_paths = config['redirect_paths']
self.redis = redis.StrictRedis(host=self.REDIS_HOST)
self.redis.setnx('next_client', '1')
self.redis.setnx('max_containers', self.MAX_CONT)
throttle_samples = config['throttle_samples']
self.redis.setnx('throttle_samples', throttle_samples)
throttle_max_avg = config['throttle_max_avg']
self.redis.setnx('throttle_max_avg', throttle_max_avg)
self.redis.setnx('container_expire_secs',
config['full_container_expire_secs'])
self.T_EXPIRE_TIME = config['throttle_expire_secs']
if os.path.exists('/var/run/docker.sock'):
self.cli = Client(base_url='unix://var/run/docker.sock',
version=self.VERSION)
else:
kwargs = kwargs_from_env(assert_hostname=False)
kwargs['version'] = self.VERSION
self.cli = Client(**kwargs)
def _get_host_port(self, info, port, default_host):
info = info['NetworkSettings']['Ports'][str(port) + '/tcp']
info = info[0]
host = info['HostIp']
if host == '0.0.0.0' and default_host:
host = default_host
return host + ':' + info['HostPort']
def timed_new_container(self, browser, env, host, client_id):
start = time.time()
info = dc.new_container(browser, env, host)
end = time.time()
dur = end - start
time_key = 't:' + client_id
self.redis.setex(time_key, self.T_EXPIRE_TIME, dur)
throttle_samples = int(self.redis.get('throttle_samples'))
print('INIT DUR: ' + str(dur))
self.redis.lpush('init_timings', time_key)
self.redis.ltrim('init_timings', 0, throttle_samples - 1)
return info
def new_container(self, browser_id, env=None, default_host=None):
browser = self.browser_paths.get(browser_id)
# get default browser
if not browser:
browser = self.browser_paths.get(self.default_browser)
container = self.cli.create_container(image=self.image_prefix + '/' + browser['id'],
ports=[self.VNC_PORT, self.CMD_PORT],
environment=env,
)
id_ = container.get('Id')
res = self.cli.start(container=id_,
port_bindings={self.VNC_PORT: None, self.CMD_PORT: None},
volumes_from=['netcapsule_shared_data_1'],
network_mode='netcapsule',
)
info = self.cli.inspect_container(id_)
ip = info['NetworkSettings']['IPAddress']
if not ip:
ip = info['NetworkSettings']['Networks']['netcapsule']['IPAddress']
short_id = id_[:12]
self.redis.hset('all_containers', short_id, ip)
self.redis.setex('c:' + short_id, self.C_EXPIRE_TIME, 1)
return {'vnc_host': self._get_host_port(info, self.VNC_PORT, default_host),
'cmd_host': self._get_host_port(info, self.CMD_PORT, default_host),
}
def remove_container(self, short_id, ip):
print('REMOVING ' + short_id)
try:
self.cli.remove_container(short_id, force=True)
except Exception as e:
print(e)
self.redis.hdel('all_containers', short_id)
self.redis.delete('c:' + short_id)
ip_keys = self.redis.keys(ip + ':*')
for key in ip_keys:
self.redis.delete(key)
def remove_all(self, check_expired=False):
all_containers = self.redis.hgetall('all_containers')
for short_id, ip in all_containers.iteritems():
if check_expired:
remove = not self.redis.get('c:' + short_id)
else:
remove = True
if remove:
self.remove_container(short_id, ip)
def add_new_client(self):
client_id = self.redis.incr('clients')
enc_id = base64.b64encode(os.urandom(27))
self.redis.setex('cm:' + enc_id, self.Q_EXPIRE_TIME, client_id)
self.redis.setex('q:' + str(client_id), self.Q_EXPIRE_TIME, 1)
return enc_id, client_id
def am_i_next(self, enc_id):
client_id = None
if enc_id:
self.redis.expire('cm:' + enc_id, self.Q_EXPIRE_TIME)
client_id = self.redis.get('cm:' + enc_id)
if not client_id:
enc_id, client_id = dc.add_new_client()
if not self.throttle():
self.redis.incr('next_client')
return enc_id, -1
client_id = int(client_id)
next_client = int(self.redis.get('next_client'))
# not next client
if client_id > next_client:
# if this client expired, delete it from queue
if not self.redis.get('q:' + str(next_client)):
print('skipping expired', next_client)
self.redis.incr('next_client')
# missed your number somehow, get a new one!
if client_id < next_client:
enc_id, client_id = self.add_new_client()
else:
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
# if true, container not avail yet
#if self.throttle():
self.redis.expire('q:' + str(client_id), self.Q_EXPIRE_TIME)
return enc_id, client_id - next_client
#self.redis.incr('next_client')
#return enc_id, -1
def throttle(self):
num_containers = self.redis.hlen('all_containers')
max_containers = self.redis.get('max_containers')
max_containers = int(max_containers) if max_containers else self.MAX_CONT
if num_containers >= max_containers:
return True
timings = self.redis.lrange('init_timings', 0, -1)
if not timings:
return False
timings = self.redis.mget(*timings)
avg = 0
count = 0
for val in timings:
if val is not None:
avg += float(val)
count += 1
if count == 0:
return False
avg = avg / count
print('AVG: ', avg)
throttle_max_avg = float(self.redis.get('throttle_max_avg'))
if avg >= throttle_max_avg:
print('Throttling, too slow...')
return True
return False
class DockerController(object):
def _load_config(self):
with open('./config.yaml') as fh:
config = yaml.load(fh)
return config
def __init__(self):
config = self._load_config()
self.REDIS_HOST = config['redis_host']
self.PYWB_HOST = config['pywb_host']
self.EXPIRE_TIME = config['expire_secs']
self.REMOVE_EXP_TIME = config['remove_expired_secs']
self.VERSION = config['api_version']
self.VNC_PORT = config['vnc_port']
self.CMD_PORT = config['cmd_port']
self.image_prefix = config['image_prefix']
self.browsers = config['browsers']
self.redis = redis.StrictRedis(host=self.REDIS_HOST)
if os.path.exists('/var/run/docker.sock'):
self.cli = Client(base_url='unix://var/run/docker.sock',
version=self.VERSION)
else:
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
kwargs['version'] = self.VERSION
self.cli = Client(**kwargs)
def new_container(self, browser, env=None):
tag = self.browsers.get(browser)
# get default browser
if not tag:
tag = self.browsers['']
container = self.cli.create_container(image=self.image_prefix + '/' + tag,
ports=[self.VNC_PORT, self.CMD_PORT],
environment=env)
id_ = container.get('Id')
res = self.cli.start(container=id_,
port_bindings={self.VNC_PORT: None, self.CMD_PORT: None},
links={self.PYWB_HOST: self.PYWB_HOST,
self.REDIS_HOST: self.REDIS_HOST})
vnc_port = self.cli.port(id_, self.VNC_PORT)
vnc_port = vnc_port[0]['HostPort']
cmd_port = self.cli.port(id_, self.CMD_PORT)
cmd_port = cmd_port[0]['HostPort']
info = self.cli.inspect_container(id_)
ip = info['NetworkSettings']['IPAddress']
short_id = id_[:12]
self.redis.hset('all_containers', short_id, ip)
self.redis.setex('c:' + short_id, self.EXPIRE_TIME, 1)
return vnc_port, cmd_port
def remove_container(self, short_id, ip):
print('REMOVING ' + short_id)
try:
self.cli.remove_container(short_id, force=True)
except Exception as e:
print(e)
self.redis.hdel('all_containers', short_id)
self.redis.delete('c:' + short_id)
ip_keys = self.redis.keys(ip +':*')
for key in ip_keys:
self.redis.delete(key)
def remove_all(self, check_expired=False):
all_containers = self.redis.hgetall('all_containers')
for short_id, ip in all_containers.iteritems():
if check_expired:
remove = not self.redis.get('c:' + short_id)
else:
remove = True
if remove:
self.remove_container(short_id, ip)
class DockerController(object):
def _load_config(self):
config = os.environ.get('BROWSER_CONFIG', './config.yaml')
with open(config) as fh:
config = yaml.load(fh)
config = config['browser_config']
for n, v in config.items():
new_v = os.environ.get(n)
if not new_v:
new_v = os.environ.get(n.upper())
if new_v:
print('Setting Env Val: {0}={1}'.format(n, new_v))
config[n] = new_v
return config
def __init__(self):
config = self._load_config()
self.name = config['cluster_name']
self.label_name = config['label_name']
self.init_req_expire_secs = config['init_req_expire_secs']
self.queue_expire_secs = config['queue_expire_secs']
self.remove_expired_secs = config['remove_expired_secs']
self.api_version = config['api_version']
self.ports = config['ports']
self.port_bindings = dict((port, None) for port in self.ports.values())
self.max_containers = config['max_containers']
self.throttle_expire_secs = config['throttle_expire_secs']
self.browser_image_prefix = config['browser_image_prefix']
self.label_browser = config['label_browser']
self.label_prefix = config['label_prefix']
self.network_name = config['network_name']
self.volume_source = config['browser_volumes']
self.shm_size = config['shm_size']
self.default_browser = config['default_browser']
self._init_cli()
while True:
try:
self._init_redis(config)
break
except BusyLoadingError:
print('Waiting for Redis to Load...')
time.sleep(5)
def _init_cli(self):
if os.path.exists('/var/run/docker.sock'):
self.cli = Client(base_url='unix://var/run/docker.sock',
version=self.api_version)
else:
kwargs = kwargs_from_env(assert_hostname=False)
kwargs['version'] = self.api_version
self.cli = Client(**kwargs)
def _init_redis(self, config):
redis_url = os.environ['REDIS_BROWSER_URL']
self.redis = redis.StrictRedis.from_url(redis_url,
decode_responses=True)
self.redis.setnx('next_client', '1')
self.redis.setnx('max_containers', self.max_containers)
self.redis.setnx('num_containers', '0')
# TODO: support this
#self.redis.set('cpu_auto_adjust', config['cpu_auto_adjust'])
# if num_containers is invalid, reset to 0
try:
assert (int(self.redis.get('num_containers') >= 0))
except:
self.redis.set('num_containers', 0)
self.redis.set('throttle_samples', config['throttle_samples'])
self.redis.set('throttle_max_avg', config['throttle_max_avg'])
self.duration = int(config['container_expire_secs'])
self.redis.set('container_expire_secs', self.duration)
def load_avail_browsers(self, params=None):
filters = {"dangling": False}
if params:
all_filters = []
for k, v in params.items():
if k not in ('short'):
all_filters.append(self.label_prefix + k + '=' + v)
filters["label"] = all_filters
else:
filters["label"] = self.label_browser
browsers = {}
try:
images = self.cli.images(filters=filters)
for image in images:
tags = image.get('RepoTags')
id_ = self._get_primary_id(tags)
if not id_:
continue
props = self._browser_info(image['Labels'])
props['id'] = id_
browsers[id_] = props
except:
traceback.print_exc()
return browsers
def _get_primary_id(self, tags):
if not tags:
return None
primary_tag = None
for tag in tags:
if not tag:
continue
if tag.endswith(':latest'):
tag = tag.replace(':latest', '')
if not tag.startswith(self.browser_image_prefix):
continue
# pick the longest tag as primary tag
if not primary_tag or len(tag) > len(primary_tag):
primary_tag = tag
if primary_tag:
return primary_tag[len(self.browser_image_prefix):]
else:
return None
def get_browser_info(self, name, include_icon=False):
tag = self.browser_image_prefix + name
try:
image = self.cli.inspect_image(tag)
tags = image.get('RepoTags')
props = self._browser_info(image['Config']['Labels'],
include_icon=include_icon)
props['id'] = self._get_primary_id(tags)
props['tags'] = tags
return props
except:
traceback.print_exc()
return {}
def _browser_info(self, labels, include_icon=False):
props = {}
caps = []
for n, v in labels.items():
wr_prop = n.split(self.label_prefix)
if len(wr_prop) != 2:
continue
name = wr_prop[1]
if not include_icon and name == 'icon':
continue
props[name] = v
if name.startswith('caps.'):
caps.append(name.split('.', 1)[1])
props['caps'] = ', '.join(caps)
return props
def _get_host_port(self, info, port, default_host):
info = info['NetworkSettings']['Ports'][str(port) + '/tcp']
info = info[0]
host = info['HostIp']
if host == '0.0.0.0' and default_host:
host = default_host
return host + ':' + info['HostPort']
def _get_port(self, info, port):
info = info['NetworkSettings']['Ports'][str(port) + '/tcp']
info = info[0]
return info['HostPort']
def sid(self, id):
return id[:12]
def timed_new_container(self, browser, env, host, reqid):
start = time.time()
info = self.new_container(browser, env, host)
end = time.time()
dur = end - start
time_key = 't:' + reqid
self.redis.setex(time_key, self.throttle_expire_secs, dur)
throttle_samples = int(self.redis.get('throttle_samples'))
print('INIT DUR: ' + str(dur))
self.redis.lpush('init_timings', time_key)
self.redis.ltrim('init_timings', 0, throttle_samples - 1)
return info
def new_container(self, browser_id, env=None, default_host=None):
#browser = self.browsers.get(browser_id)
browser = self.get_browser_info(browser_id)
# get default browser
if not browser:
browser = self.get_browser_info(browser_id)
#browser = self.browsers.get(self.default_browser)
if browser.get('req_width'):
env['SCREEN_WIDTH'] = browser.get('req_width')
if browser.get('req_height'):
env['SCREEN_HEIGHT'] = browser.get('req_height')
image = browser['tags'][0]
print('Launching ' + image)
short_id = None
try:
host_config = self.create_host_config()
container = self.cli.create_container(
image=image,
ports=list(self.ports.values()),
environment=env,
host_config=host_config,
labels={self.label_name: self.name},
)
id_ = container.get('Id')
short_id = self.sid(id_)
res = self.cli.start(container=id_)
info = self.cli.inspect_container(id_)
ip = info['NetworkSettings']['IPAddress']
if not ip:
ip = info['NetworkSettings']['Networks'][
self.network_name]['IPAddress']
self.redis.hset('all_containers', short_id, ip)
result = {}
for port_name in self.ports:
result[port_name + '_host'] = self._get_host_port(
info, self.ports[port_name], default_host)
result['id'] = short_id
result['ip'] = ip
result['audio'] = os.environ.get('AUDIO_TYPE', '')
return result
except Exception as e:
traceback.print_exc()
if short_id:
print('EXCEPTION: ' + short_id)
self.remove_container(short_id)
return {}
def create_host_config(self):
if self.volume_source:
volumes_from = [self.volume_source]
else:
volumes_from = None
host_config = self.cli.create_host_config(
port_bindings=self.port_bindings,
volumes_from=volumes_from,
network_mode=self.network_name,
shm_size=self.shm_size,
cap_add=['ALL'],
security_opt=['apparmor=unconfined'],
)
return host_config
def remove_container(self, short_id):
print('REMOVING: ' + short_id)
try:
self.cli.remove_container(short_id, force=True)
except Exception as e:
print(e)
reqid = None
ip = self.redis.hget('all_containers', short_id)
if ip:
reqid = self.redis.hget('ip:' + ip, 'reqid')
with redis.utils.pipeline(self.redis) as pi:
pi.delete('ct:' + short_id)
if not ip:
return
pi.hdel('all_containers', short_id)
pi.delete('ip:' + ip)
if reqid:
pi.delete('req:' + reqid)
def event_loop(self):
for event in self.cli.events(decode=True):
try:
self.handle_docker_event(event)
except Exception as e:
print(e)
def handle_docker_event(self, event):
if event['Type'] != 'container':
return
if (event['status'] == 'die'
and event['from'].startswith(self.browser_image_prefix)
and event['Actor']['Attributes'].get(
self.label_name) == self.name):
short_id = self.sid(event['id'])
print('EXITED: ' + short_id)
self.remove_container(short_id)
self.redis.decr('num_containers')
return
if (event['status'] == 'start'
and event['from'].startswith(self.browser_image_prefix)
and event['Actor']['Attributes'].get(
self.label_name) == self.name):
short_id = self.sid(event['id'])
print('STARTED: ' + short_id)
self.redis.incr('num_containers')
self.redis.setex('ct:' + short_id, self.duration, 1)
return
def remove_expired_loop(self):
while True:
try:
self.remove_expired()
except Exception as e:
print(e)
time.sleep(self.remove_expired_secs)
def remove_expired(self):
all_known_ids = self.redis.hkeys('all_containers')
all_containers = {
self.sid(c['Id'])
for c in self.cli.containers(quiet=True)
}
for short_id in all_known_ids:
if not self.redis.get('ct:' + short_id):
print('TIME EXPIRED: ' + short_id)
self.remove_container(short_id)
elif short_id not in all_containers:
print('STALE ID: ' + short_id)
self.remove_container(short_id)
def auto_adjust_max(self):
print('Auto-Adjust Max Loop')
try:
scale = self.redis.get('cpu_auto_adjust')
if not scale:
return
info = self.cli.info()
cpus = int(info.get('NCPU', 0))
if cpus <= 1:
return
total = int(float(scale) * cpus)
self.redis.set('max_containers', total)
except Exception as e:
traceback.print_exc()
def add_new_client(self, reqid):
client_id = self.redis.incr('clients')
#enc_id = base64.b64encode(os.urandom(27)).decode('utf-8')
self.redis.setex('cm:' + reqid, self.queue_expire_secs, client_id)
self.redis.setex('q:' + str(client_id), self.queue_expire_secs, 1)
return client_id
def _make_reqid(self):
return base64.b32encode(os.urandom(15)).decode('utf-8')
def _make_vnc_pass(self):
return base64.b64encode(os.urandom(21)).decode('utf-8')
def register_request(self, container_data):
reqid = self._make_reqid()
container_data['reqid'] = reqid
self.redis.hmset('req:' + reqid, container_data)
self.redis.expire('req:' + reqid, self.init_req_expire_secs)
return reqid
def am_i_next(self, reqid):
client_id = self.redis.get('cm:' + reqid)
if not client_id:
client_id = self.add_new_client(reqid)
else:
self.redis.expire('cm:' + reqid, self.queue_expire_secs)
client_id = int(client_id)
next_client = int(self.redis.get('next_client'))
# not next client
if client_id != next_client:
# if this client expired, delete it from queue
if not self.redis.get('q:' + str(next_client)):
print('skipping expired', next_client)
self.redis.incr('next_client')
# missed your number somehow, get a new one!
if client_id < next_client:
client_id = self.add_new_client(reqid)
diff = client_id - next_client
if self.throttle():
self.redis.expire('q:' + str(client_id), self.queue_expire_secs)
return client_id - next_client
#num_containers = self.redis.hlen('all_containers')
num_containers = int(self.redis.get('num_containers'))
max_containers = self.redis.get('max_containers')
max_containers = int(
max_containers) if max_containers else self.max_containers
if diff <= (max_containers - num_containers):
self.redis.incr('next_client')
return -1
else:
self.redis.expire('q:' + str(client_id), self.queue_expire_secs)
return client_id - next_client
def throttle(self):
timings = self.redis.lrange('init_timings', 0, -1)
if not timings:
return False
timings = self.redis.mget(*timings)
avg = 0
count = 0
for val in timings:
if val is not None:
avg += float(val)
count += 1
if count == 0:
return False
avg = avg / count
print('AVG: ', avg)
throttle_max_avg = float(self.redis.get('throttle_max_avg'))
if avg >= throttle_max_avg:
print('Throttling, too slow...')
return True
return False
def _copy_env(self, env, name, override=None):
env[name] = override or os.environ.get(name)
def init_new_browser(self, reqid, host, width=None, height=None):
req_key = 'req:' + reqid
container_data = self.redis.hgetall(req_key)
if not container_data:
return None
# already started, attempt to reconnect
if 'queue' in container_data:
container_data['ttl'] = self.redis.ttl('ct:' +
container_data['id'])
return container_data
queue_pos = self.am_i_next(reqid)
if queue_pos >= 0:
return {'queue': queue_pos}
browser = container_data['browser']
url = container_data.get('url', 'about:blank')
ts = container_data.get('request_ts')
env = {}
env['URL'] = url
env['TS'] = ts
env['BROWSER'] = browser
vnc_pass = self._make_vnc_pass()
env['VNC_PASS'] = vnc_pass
self._copy_env(env, 'PROXY_HOST')
self._copy_env(env, 'PROXY_PORT')
self._copy_env(env, 'PROXY_GET_CA')
self._copy_env(env, 'SCREEN_WIDTH', width)
self._copy_env(env, 'SCREEN_HEIGHT', height)
self._copy_env(env, 'IDLE_TIMEOUT')
self._copy_env(env, 'AUDIO_TYPE')
info = self.timed_new_container(browser, env, host, reqid)
info['queue'] = 0
info['vnc_pass'] = vnc_pass
new_key = 'ip:' + info['ip']
# TODO: support different durations?
self.duration = int(self.redis.get('container_expire_secs'))
with redis.utils.pipeline(self.redis) as pi:
pi.rename(req_key, new_key)
pi.persist(new_key)
pi.hmset(req_key, info)
pi.expire(req_key, self.duration)
info['ttl'] = self.duration
return info
def clone_browser(self, reqid, id_, name):
short_id = self.redis.hget('req:' + reqid, 'id')
#try:
# container = self.cli.containers.get(short_id)
#except Exception as e:
# print(e)
# print('Container Not Found: ' + short_id)
# return {'error': str(e)}
env = {}
self._copy_env(env, 'PROXY_HOST')
self._copy_env(env, 'PROXY_PORT')
self._copy_env(env, 'PROXY_GET_CA')
self._copy_env(env, 'SCREEN_WIDTH')
self._copy_env(env, 'SCREEN_HEIGHT')
self._copy_env(env, 'IDLE_TIMEOUT')
self._copy_env(env, 'AUDIO_TYPE')
env_list = []
for n, v in env.items():
if n and v:
env_list.append(n + '=' + v)
config = {'Env': env_list, 'Labels': {'wr.name': name}}
try:
exec_id = self.cli.exec_create(
container=short_id,
cmd="bash -c 'kill $(cat /tmp/browser_pid)'")
self.cli.exec_start(exec_id=exec_id['Id'], detach=False, tty=False)
time.sleep(0.5)
except Exception as e:
print(e)
try:
res = self.cli.commit(container=short_id,
repository='oldwebtoday/user/' + id_,
conf=config)
return {'success': '1'}
except Exception as e:
print(e)
return {'error': str(e)}
def get_random_browser(self):
browsers = self.load_avail_browsers()
while True:
id_ = random.choice(browsers.keys())
if browsers[id_].get('skip_random'):
continue
return id_