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 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 docker_client(args):
"""
Attempts to create a docker client.
- args: The arguments parsed on the command line.
- returns: a docker-py client
"""
if _platform == 'linux' or _platform == 'linux2':
# linux
if "docker_url" in args:
return Client(
base_url=args.docker_url,
timeout=args.timeout,
version='auto')
else:
# TODO: test to see if this does the right thing by default.
return Client(
version='auto',
timeout=args.timeout,
**kwargs_from_env())
elif _platform == 'darwin':
# OS X - Assume boot2docker, and pull from that environment.
kwargs = kwargs_from_env()
if len(kwargs) == 0:
logging.error('Could not correctly pull in docker environment. '
'Try running: eval "$(docker-machine env default)"')
sys.exit(2)
if not args.strict_docker_tls:
kwargs['tls'].assert_hostname = False
return Client(version='auto', timeout=args.timeout, **kwargs)
elif _platform == 'win32' or _platform == 'cygwin':
# Windows.
logging.fatal("Sorry, windows is not currently supported!")
sys.exit(2)
def download_docker_image(docker_image, target_file, cache=None):
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(target_file,'w')
image_tar.write(image.data)
image_tar.close()
except Exception as e:
if cache is not None:
cached_file = os.path.join(cache, docker_image.lower().replace('/','-').replace(':','-') + '.tgz')
if os.path.isfile(cached_file):
print 'using cached version of', docker_image
urllib.urlretrieve(cached_file, target_file)
return
print >> sys.stderr, docker_image, 'not found in cache', cache
sys.exit(1)
if isinstance(e, KeyError):
print >> sys.stderr, 'docker not configured on this machine (or environment variables are not properly set)'
else:
print >> sys.stderr, docker_image, 'not found on local machine'
print >> sys.stderr, 'you must either pull the image, or download it and use the --docker-cache option'
sys.exit(1)
def docker_client(args):
"""
Attempts to create a docker client.
- args: The arguments parsed on the command line.
- returns: a docker-py client
"""
if _platform == 'linux' or _platform == 'linux2':
# linux
if "docker_url" in args:
return Client(base_url=args.docker_url)
else:
# TODO: test to see if this does the right thing by default.
return Client(**kwargs_from_env())
elif _platform == 'darwin':
# OS X - Assume boot2docker, and pull from that environment.
kwargs = kwargs_from_env()
if not args.strict_docker_tls:
kwargs['tls'].assert_hostname = False
return Client(**kwargs)
elif _platform == 'win32' or _platform == 'cygwin':
# Windows.
logging.fatal("Sorry, windows is not currently supported!")
sys.exit(2)
def docker_context():
"""Make a docker context"""
host = os.environ.get('DOCKER_HOST')
cert_path = os.environ.get('DOCKER_CERT_PATH')
tls_verify = os.environ.get('DOCKER_TLS_VERIFY')
options = {"timeout": 60}
if host:
options['base_url'] = (host.replace('tcp://', 'https://') if tls_verify else host)
if tls_verify and cert_path:
options['tls'] = docker.tls.TLSConfig(
verify = True
, ca_cert = os.path.join(cert_path, 'ca.pem')
, client_cert = (os.path.join(cert_path, 'cert.pem'), os.path.join(cert_path, 'key.pem'))
, ssl_version = ssl.PROTOCOL_TLSv1
, assert_hostname = False
)
client = DockerClient(**options)
try:
info = client.info()
log.info("Connected to docker daemon\tdriver=%s\tkernel=%s", info["Driver"], info["KernelVersion"])
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout) as error:
raise BadDockerConnection(base_url=options['base_url'], error=error)
return client
def docker_context():
"""Make a docker context"""
host = os.environ.get('DOCKER_HOST')
cert_path = os.environ.get('DOCKER_CERT_PATH')
tls_verify = os.environ.get('DOCKER_TLS_VERIFY')
options = {"timeout": 60}
if host:
options['base_url'] = (host.replace('tcp://', 'https://')
if tls_verify else host)
if tls_verify and cert_path:
options['tls'] = docker.tls.TLSConfig(
verify=True,
ca_cert=os.path.join(cert_path, 'ca.pem'),
client_cert=(os.path.join(cert_path, 'cert.pem'),
os.path.join(cert_path, 'key.pem')),
ssl_version=ssl.PROTOCOL_TLSv1,
assert_hostname=False)
client = DockerClient(**options)
try:
info = client.info()
log.info("Connected to docker daemon\tdriver=%s\tkernel=%s",
info["Driver"], info["KernelVersion"])
except (requests.exceptions.ConnectionError,
requests.exceptions.Timeout) as error:
raise BadDockerConnection(base_url=options['base_url'], error=error)
return client
def download_docker_image(docker_image, target_file, cache=None):
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'] = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(target_file,'w')
image_tar.write(image.data)
image_tar.close()
except Exception as e:
if cache is not None:
cached_file = os.path.join(cache, docker_image.lower().replace('/','-').replace(':','-') + '.tgz')
if os.path.isfile(cached_file):
print 'using cached version of', docker_image
urllib.urlretrieve(cached_file, target_file)
return
print >> sys.stderr, docker_image, 'not found in cache', cache
sys.exit(1)
if isinstance(e, KeyError):
print >> sys.stderr, 'docker not configured on this machine (or environment variables are not properly set)'
else:
print >> sys.stderr, docker_image, 'not found on local machine'
print >> sys.stderr, 'you must either pull the image, or download it and use the --docker-cache option'
sys.exit(1)
def test_update_headers(self):
sample_headers = {
'X-Docker-Locale': 'en-US',
}
def f(self, headers=None):
return headers
client = Client()
client._auth_configs = {}
g = update_headers(f)
assert g(client, headers=None) is None
assert g(client, headers={}) == {}
assert g(client, headers={'Content-type': 'application/json'}) == {
'Content-type': 'application/json',
}
client._auth_configs = {
'HttpHeaders': sample_headers
}
assert g(client, headers=None) == sample_headers
assert g(client, headers={}) == sample_headers
assert g(client, headers={'Content-type': 'application/json'}) == {
'Content-type': 'application/json',
'X-Docker-Locale': 'en-US',
}
def test_update_headers(self):
sample_headers = {
'X-Docker-Locale': 'en-US',
}
def f(self, headers=None):
return headers
client = Client()
client._auth_configs = {}
g = update_headers(f)
assert g(client, headers=None) is None
assert g(client, headers={}) == {}
assert g(client, headers={'Content-type': 'application/json'}) == {
'Content-type': 'application/json',
}
client._auth_configs = {'HttpHeaders': sample_headers}
assert g(client, headers=None) == sample_headers
assert g(client, headers={}) == sample_headers
assert g(client, headers={'Content-type': 'application/json'}) == {
'Content-type': 'application/json',
'X-Docker-Locale': 'en-US',
}
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 __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 _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 download_docker_image(docker_image, target_file): from docker.client import Client from docker.utils import kwargs_from_env kwargs = kwargs_from_env() kwargs['tls'].assert_hostname = False docker_cli = Client(**kwargs) image = docker_cli.get_image(docker_image) image_tar = open(target_file,'w') image_tar.write(image.data) image_tar.close()
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 docker_context():
"""Make a docker context"""
base_url = None
if "DOCKER_HOST" in os.environ:
base_url = os.environ["DOCKER_HOST"]
client = DockerClient(base_url=base_url, timeout=5)
try:
info = client.info()
log.info("Connected to docker daemon\tdriver=%s\tkernel=%s", info["Driver"], info["KernelVersion"])
except requests.exceptions.ConnectionError as error:
raise BadDockerConnection(base_url=base_url, error=error)
return client
def docker_context():
"""Make a docker context"""
options = kwargs_from_env(assert_hostname=False)
options["version"] = "auto"
options["timeout"] = int(os.environ.get("DOCKER_CLIENT_TIMEOUT", 180))
client = DockerClient(**options)
try:
info = client.info()
log.info("Connected to docker daemon\tdriver=%s\tkernel=%s", info["Driver"], info["KernelVersion"])
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout) as error:
raise BadDockerConnection(base_url=options.get('base_url'), error=error)
return client
def download_docker_image(docker_image, target_file):
from docker.client import Client
try: # First attempt boot2docker, because it is fail-fast
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
docker_cli = Client(**kwargs)
except KeyError as e: # Assume this means we are not using boot2docker
docker_cli = Client(base_url='unix://var/run/docker.sock', tls=False)
image = docker_cli.get_image(docker_image)
image_tar = open(target_file, 'w')
image_tar.write(image.data)
image_tar.close()
def download_docker_image(docker_image, target_file): from docker.client import Client try: # First attempt boot2docker, because it is fail-fast from docker.utils import kwargs_from_env kwargs = kwargs_from_env() kwargs['tls'].assert_hostname = False docker_cli = Client(**kwargs) except KeyError as e: # Assume this means we are not using boot2docker docker_cli = Client(base_url='unix://var/run/docker.sock', tls=False) image = docker_cli.get_image(docker_image) image_tar = open(target_file,'w') image_tar.write(image.data) image_tar.close()
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}
def handle(self, *args, **kwargs):
hosts = Host.objects.filter(use_for_building_images=True).order_by('?')
if hosts:
c = DockerClient(base_url=hosts[0].docker_api_endpoint)
for plugin_dict in pool.get_all_plugin_dicts():
result, log = c.build(
tag="docker-service-provisioner/%s:v%s" % (plugin_dict['service'], plugin_dict['version']),
path=urljoin(settings.DOCKER_PROVISION_URL, "dockerfile/%s/%s/" % (plugin_dict['service'], plugin_dict['version']))
)
if result:
print "Converted", plugin_dict['service'], plugin_dict['version'], 'to', result
else:
print "Failed converting", plugin_dict['service'], plugin_dict['version'], 'to', result
else:
raise Exception("No hosts available for building images!")
def main(self, args):
# !! TODO needs to implement login if using that
containers = []
try:
directory = args.metadata_path
directory = os.path.expanduser(directory)
with open(os.path.join(directory, "containers"), 'r') as f:
for line in f:
container = ast.literal_eval(line.rstrip("\n"))
containers.append(container['container_id'] + "," +
container['host'])
except:
pass
host_args = Object()
host_args.metadata_path = args.metadata_path
host_args.z = True
host_a = hosts.hosts.main(host_args)
host_c = []
for host in host_a:
# !! TODO is using TLS, put in env for each host
c = Client(**kwargs_from_env())
#tls_config = docker.tls.TLSConfig(verify=False)
#c = docker.Client(base_url='tcp://'+host, version='1.12',
# #tls=tls_config,
# timeout=2)
host_c.append(c.containers())
compare_containers = []
try:
for container in host_c[0]:
compare_containers.append(container['Id'])
except:
if not args.z:
print "no hosts found"
return ""
running_containers = []
for item in containers:
container_id = item.split(',')[0]
if container_id in compare_containers:
running_containers.append(item)
if not args.z:
for container in running_containers:
print container
return running_containers
def connect(self):
url = self.api_cfg.get('url', 'unix://var/run/docker.sock')
version = self.api_cfg.get('version', '1.12')
boot2docker = self.api_cfg.get('boot2docker')
tls_config = self._construct_tlsconfig()
if boot2docker is True:
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
client = Client(**kwargs)
else:
client = Client(base_url=url,
version=str(version),
tls=tls_config,
timeout=50)
return client
def _init_docker():
kwargs = kwargs_from_env()
if 'tls' in kwargs:
# see http://docker-py.readthedocs.org/en/latest/boot2docker/
import requests.packages.urllib3 as urllib3
urllib3.disable_warnings()
kwargs['tls'].assert_hostname = False
docker = Client(**kwargs)
try:
docker.version()
except:
raise UserMessageException("Please set up 'docker' correctly")
return docker
def __init__(self, remote, username=None, password=None, email=None):
super(DockerPyClient,self).__init__()
self.client = Client(base_url=remote, version='1.15')
self.log = logging.getLogger(__name__)
self.log.debug('password %s, remote = %s, username=%s', password, remote, username)
if username:
self.client.login(username=username, password=password, email=email)
def test_from_env_with_version(self):
os.environ.update(DOCKER_HOST='tcp://192.168.59.103:2376',
DOCKER_CERT_PATH=TEST_CERT_DIR,
DOCKER_TLS_VERIFY='1')
client = Client.from_env(version='2.32')
self.assertEqual(client.base_url, "https://192.168.59.103:2376")
self.assertEqual(client._version, '2.32')
def docker_context():
"""Make a docker context"""
options = kwargs_from_env(assert_hostname=False)
options["version"] = "auto"
options["timeout"] = int(os.environ.get("DOCKER_CLIENT_TIMEOUT", 180))
client = DockerClient(**options)
try:
info = client.info()
log.info("Connected to docker daemon\tdriver=%s\tkernel=%s",
info["Driver"], info["KernelVersion"])
except (requests.exceptions.ConnectionError,
requests.exceptions.Timeout) as error:
raise BadDockerConnection(base_url=options.get('base_url'),
error=error)
return client
def _init_docker():
kwargs = kwargs_from_env()
if 'tls' in kwargs:
# see http://docker-py.readthedocs.org/en/latest/boot2docker/
import requests.packages.urllib3 as urllib3
urllib3.disable_warnings()
kwargs['tls'].assert_hostname = False
docker = Client(**kwargs)
try:
docker.version()
except:
raise UserMessageException("Please set up 'docker' correctly")
return docker
def initialize():
"""
Initialize the discovery service. This is done automatically when discovery is imported, but it can be used
to reinitialize the service.
"""
global services
discovery_mode = os.getenv('DISCOVERY_MODE')
docker_host = os.getenv('DOCKER_HOST')
if not discovery_mode and docker_host:
discovery_mode = 'docker'
if not discovery_mode:
discovery_mode = 'dns'
if discovery_mode == 'docker':
if not docker_host:
raise ValueError("DOCKER_HOST not set")
from docker.client import Client
from docker.utils import kwargs_from_env
ip = re.match(r'.*?://(.*?):\d+', docker_host).group(1)
kwargs = kwargs_from_env(assert_hostname=False)
client = Client(**kwargs)
services = DockerRegistry(client, ip)
elif discovery_mode == 'env':
services = EnvironmentRegistry()
elif discovery_mode == 'dns':
services = DnsRegistry()
else:
raise ValueError("Unknown DISCOVERY_MODE: {}".format(discovery_mode))
def docker_client():
# MAC OSX SUPPORT
# if platform.system() == 'Darwin':
# kwargs = kwargs_from_env(assert_hostname=False)
# return Client(**kwargs)
# else:
return Client(version='auto')
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 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 cli(ctx, url, network):
# initialize Client
cl = Client(base_url=url, version='auto')
# output version to show the connected succeeded
v = cl.version()
info('Connected to Docker {v[Version]}, api version '
'{v[ApiVersion]}.'.format(v=v))
# find frontend network
nets = [n for n in cl.networks(names=[network]) if n['Name'] == network]
assert len(nets) < 2 # WTF?
if not nets:
exit_err("Could not find a network name {!r}".format(network))
ctx.obj = {'cl': cl, 'network_name': network, 'network': nets[0]['Name']}
def get_cli(assert_hostname=True):
kwargs = kwargs_from_env()
if not assert_hostname:
kwargs['tls'].assert_hostname = False
cli = Client(**kwargs)
return cli
def client():
"""
Returns a docker-py client configured using environment variables
according to the same logic as the official Docker client.
"""
kwargs = kwargs_from_env()
if 'tls' in kwargs:
kwargs['tls'].assert_hostname = False
return Client(version='auto', **kwargs)
def test_from_env(self):
"""Test that environment variables are passed through to
utils.kwargs_from_env(). KwargsFromEnvTest tests that environment
variables are parsed correctly."""
os.environ.update(DOCKER_HOST='tcp://192.168.59.103:2376',
DOCKER_CERT_PATH=TEST_CERT_DIR,
DOCKER_TLS_VERIFY='1')
client = Client.from_env()
self.assertEqual(client.base_url, "https://192.168.59.103:2376")
def cli(ctx, url, network):
# initialize Client
cl = Client(base_url=url, version='auto')
# output version to show the connected succeeded
v = cl.version()
info('Connected to Docker {v[Version]}, api version '
'{v[ApiVersion]}.'.format(v=v))
# find frontend network
nets = [n for n in cl.networks(names=[network]) if n['Name'] == network]
assert len(nets) < 2 # WTF?
if not nets:
exit_err("Could not find a network name {!r}".format(network))
ctx.obj = {'cl': cl, 'network_name': network, 'network': nets[0]['Name']}
def test_from_env(self):
"""Test that environment variables are passed through to
utils.kwargs_from_env(). KwargsFromEnvTest tests that environment
variables are parsed correctly."""
os.environ.update(DOCKER_HOST='tcp://192.168.59.103:2376',
DOCKER_CERT_PATH=TEST_CERT_DIR,
DOCKER_TLS_VERIFY='1')
client = Client.from_env()
self.assertEqual(client.base_url, "https://192.168.59.103:2376")
def handle(self, *args, **kwargs):
hosts = Host.objects.filter(use_for_building_images=True).order_by('?')
if hosts:
c = DockerClient(base_url=hosts[0].docker_api_endpoint)
for plugin_dict in pool.get_all_plugin_dicts():
result, log = c.build(
tag="docker-service-provisioner/%s:v%s" %
(plugin_dict['service'], plugin_dict['version']),
path=urljoin(
settings.DOCKER_PROVISION_URL, "dockerfile/%s/%s/" %
(plugin_dict['service'], plugin_dict['version'])))
if result:
print "Converted", plugin_dict['service'], plugin_dict[
'version'], 'to', result
else:
print "Failed converting", plugin_dict[
'service'], plugin_dict['version'], 'to', result
else:
raise Exception("No hosts available for building images!")
def docker_client():
"""Create a Docker client instance or return an existing one."""
global _DOCKER_CLIENT # pylint: disable = global-statement
if _DOCKER_CLIENT:
return _DOCKER_CLIENT
else:
# assert_hostname=False is required when using boot2docker, it's taken as a hint from Fig: https://github.com/docker/fig/blob/master/compose/cli/docker_client.py#L29
_DOCKER_CLIENT = Client(**kwargs_from_env(assert_hostname=False))
return _DOCKER_CLIENT
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)
def download(url, filename, cache=None):
if cache is not None:
basename = os.path.basename(filename)
cachename = os.path.join(cache, basename)
if os.path.isfile(cachename):
print('- using cached version of', basename)
shutil.copy(cachename, filename)
return
if url.startswith("http:") or url.startswith("https"):
# [mboldt:20160908] Using urllib.urlretrieve gave an "Access
# Denied" page when trying to download docker boshrelease.
# I don't know why. requests.get works. Do what works.
response = requests.get(url, stream=True)
response.raise_for_status()
with open(filename, 'wb') as file:
for chunk in response.iter_content(chunk_size=1024):
if chunk:
file.write(chunk)
elif url.startswith("docker:"):
docker_image = url.lstrip("docker:").lstrip("/").lstrip("/")
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'] = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(filename,'w')
image_tar.write(image.data)
image_tar.close()
except KeyError as e:
print('docker not configured on this machine (or environment variables are not properly set)', file=sys.stderr)
sys.exit(1)
except:
print(docker_image, 'not found on local machine', file=sys.stderr)
print('you must either pull the image, or download it and use the --cache option', file=sys.stderr)
sys.exit(1)
else:
shutil.copy(url, filename)
def __init__(self, project):
self.project = project
self.checkout_directory = project.get_checkout_directory()
self.artifact_directory = project.get_artifact_directory()
self.serve_directory = project.get_serve_directory()
self.image_name = self.get_image_name()
self.container_name = self.get_container_name()
kwargs = kwargs_from_env()
if settings.DEBUG and osx:
# development helper for boot2docker users
kwargs['tls'].assert_hostname = False
self.docker = Client(**kwargs)
if not os.path.exists(self.checkout_directory):
raise NonexistantCheckout(
'No such checkout: %s' % self.checkout_directory
)
if not os.path.exists(self.artifact_directory):
os.makedirs(self.artifact_directory)
if not os.path.exists(self.serve_directory):
os.makedirs(self.serve_directory)
def get_client(daemon_client):
"""Get client.
Returns docker client using daemon_client as configuration.
:param daemon_client: optional configuration for client creation
:raises NonRecoverableError:
when docker.errors.APIError during client.
:return: docker client
"""
try:
return Client(**daemon_client)
except DockerException as e:
raise NonRecoverableError(
'Error while getting client: {0}.'.format(str(e)))
def test_kwargs_from_env_tls(self):
os.environ.update(DOCKER_HOST='tcp://192.168.59.103:2376',
DOCKER_CERT_PATH=TEST_CERT_DIR,
DOCKER_TLS_VERIFY='1')
kwargs = kwargs_from_env(assert_hostname=False)
self.assertEqual('https://192.168.59.103:2376', kwargs['base_url'])
self.assertTrue('ca.pem' in kwargs['tls'].verify)
self.assertTrue('cert.pem' in kwargs['tls'].cert[0])
self.assertTrue('key.pem' in kwargs['tls'].cert[1])
self.assertEqual(False, kwargs['tls'].assert_hostname)
try:
client = Client(**kwargs)
self.assertEqual(kwargs['base_url'], client.base_url)
self.assertEqual(kwargs['tls'].verify, client.verify)
self.assertEqual(kwargs['tls'].cert, client.cert)
except TypeError as e:
self.fail(e)
def client_from_opts(client_opts=()):
"""
Construct a docker-py Client from a string specifying options.
"""
kwargs = CLIENT_DEFAULTS.copy()
for name, value in client_opts:
if name == "timeout":
kwargs["timeout"] = int(value)
elif name == "tls":
kwargs["tls"] = strtobool(value.lower())
else:
kwargs[name] = value
return Client(**kwargs)
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))
def test_kwargs_from_env_tls_verify_false_no_cert(self):
temp_dir = tempfile.mkdtemp()
cert_dir = os.path.join(temp_dir, '.docker')
shutil.copytree(TEST_CERT_DIR, cert_dir)
os.environ.update(DOCKER_HOST='tcp://192.168.59.103:2376',
HOME=temp_dir,
DOCKER_TLS_VERIFY='')
os.environ.pop('DOCKER_CERT_PATH', None)
kwargs = kwargs_from_env(assert_hostname=True)
self.assertEqual('https://192.168.59.103:2376', kwargs['base_url'])
self.assertTrue('ca.pem' in kwargs['tls'].ca_cert)
self.assertTrue('cert.pem' in kwargs['tls'].cert[0])
self.assertTrue('key.pem' in kwargs['tls'].cert[1])
self.assertEqual(True, kwargs['tls'].assert_hostname)
self.assertEqual(False, kwargs['tls'].verify)
try:
client = Client(**kwargs)
self.assertEqual(kwargs['base_url'], client.base_url)
self.assertEqual(kwargs['tls'].cert, client.cert)
self.assertFalse(kwargs['tls'].verify)
except TypeError as e:
self.fail(e)
class DisableSocketTest(base.BaseTestCase):
class DummySocket(object):
def __init__(self, timeout=60):
self.timeout = timeout
def settimeout(self, timeout):
self.timeout = timeout
def gettimeout(self):
return self.timeout
def setUp(self):
self.client = Client()
def test_disable_socket_timeout(self):
"""Test that the timeout is disabled on a generic socket object."""
socket = self.DummySocket()
self.client._disable_socket_timeout(socket)
self.assertEqual(socket.timeout, None)
def test_disable_socket_timeout2(self):
"""Test that the timeouts are disabled on a generic socket object
and it's _sock object if present."""
socket = self.DummySocket()
socket._sock = self.DummySocket()
self.client._disable_socket_timeout(socket)
self.assertEqual(socket.timeout, None)
self.assertEqual(socket._sock.timeout, None)
def test_disable_socket_timout_non_blocking(self):
"""Test that a non-blocking socket does not get set to blocking."""
socket = self.DummySocket()
socket._sock = self.DummySocket(0.0)
self.client._disable_socket_timeout(socket)
self.assertEqual(socket.timeout, None)
self.assertEqual(socket._sock.timeout, 0.0)
class DisableSocketTest(base.BaseTestCase):
class DummySocket(object):
def __init__(self, timeout=60):
self.timeout = timeout
def settimeout(self, timeout):
self.timeout = timeout
def gettimeout(self):
return self.timeout
def setUp(self):
self.client = Client()
def test_disable_socket_timeout(self):
"""Test that the timeout is disabled on a generic socket object."""
socket = self.DummySocket()
self.client._disable_socket_timeout(socket)
self.assertEqual(socket.timeout, None)
def test_disable_socket_timeout2(self):
"""Test that the timeouts are disabled on a generic socket object
and it's _sock object if present."""
socket = self.DummySocket()
socket._sock = self.DummySocket()
self.client._disable_socket_timeout(socket)
self.assertEqual(socket.timeout, None)
self.assertEqual(socket._sock.timeout, None)
def test_disable_socket_timout_non_blocking(self):
"""Test that a non-blocking socket does not get set to blocking."""
socket = self.DummySocket()
socket._sock = self.DummySocket(0.0)
self.client._disable_socket_timeout(socket)
self.assertEqual(socket.timeout, None)
self.assertEqual(socket._sock.timeout, 0.0)
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
def getImages(self,daemon_address=None):
c = Client(daemon_address)
result = Bag()
for i,image in enumerate(c.images()):
result['r_%i' %i] = Bag(image)
return result
def __init__(self, db):
self.client = Client()
self.db = db
#!/usr/bin/env python import dockerpty import os from docker.client import Client from docker.utils import kwargs_from_env client = Client(base_url=os.environ['DOCKER_HOST'], version=os.environ['DOCKER_SERVER_API_VERSION']) container = client.create_container(image="debian:wheezy", stdin_open=True, tty=True, command='echo "passed"') dockerpty.start(client, container)
def __init__(self):
base_url = self.dockerconf.get('base_url', '')
self.client = Client(base_url = base_url)
logger.debug("Client init")
self.check = None
class Docker:
dockerconf = KOOPLEX.get('docker', {})
def __init__(self):
base_url = self.dockerconf.get('base_url', '')
self.client = Client(base_url = base_url)
logger.debug("Client init")
self.check = None
def list_imagenames(self):
logger.debug("Listing image names")
pattern_imagenamefilter = KOOPLEX.get('docker', {}).get('pattern_imagename_filter', r'^image-%(\w+):\w$')
for image in self.client.images(all = True):
if image['RepoTags'] is None:
continue
for tag in image['RepoTags']:
if re.match(pattern_imagenamefilter, tag):
_, imagename, _ = re.split(pattern_imagenamefilter, tag)
logger.debug("Found image: %s" % imagename)
yield imagename
def list_volumenames(self):
logger.debug("Listing volume names")
volumes = self.client.volumes()
for volume in volumes['Volumes']:
yield volume['Name']
def get_container(self, container):
for item in self.client.containers(all = True):
# docker API prepends '/' in front of container names
if '/' + container.name in item['Names']:
logger.debug("Get container %s" % container.name)
return item
return None
def create_container(self, container):
volumes = [] # the list of mount points in the container
binds = {} # a mapping dictionary of the container mounts
for volume in container.volumes:
logger.debug("container %s, volume %s" % (container, volume))
mp = volume.mountpoint
volumes.append(mp)
binds[volume.name] = { 'bind': mp, 'mode': volume.mode(container.user) }
logger.debug("container %s binds %s" % (container, binds))
host_config = self.client.create_host_config(
binds = binds,
privileged = True,
mem_limit = '2g',
memswap_limit = '170m',
mem_swappiness = 0,
# oom_kill_disable = True,
cpu_shares = 2,
)
network = self.dockerconf.get('network', 'host')
networking_config = { 'EndpointsConfig': { network: {} } }
ports = self.dockerconf.get('container_ports', [ 8000, 9000 ])
imagename = container.image.imagename if container.image else self.dockerconf.get('default_image', 'basic')
args = {
'name': container.name,
'image': imagename,
'detach': True,
'hostname': container.name,
'host_config': host_config,
'networking_config': networking_config,
'environment': container.environment,
'volumes': volumes,
'ports': ports,
}
self.client.create_container(**args)
logger.debug("Container created")
self.managemount(container) #FIXME: check if not called twice
return self.get_container(container)
def _writefile(self, container_name, path, filename, content):
import tarfile
import time
from io import BytesIO
tarstream = BytesIO()
tar = tarfile.TarFile(fileobj = tarstream, mode = 'w')
tarinfo = tarfile.TarInfo(name = filename)
tarinfo.size = len(content)
tarinfo.mtime = time.time()
tar.addfile(tarinfo, BytesIO(content))
tar.close()
tarstream.seek(0)
try:
status = self.client.put_archive(container = container_name, path = path, data = tarstream)
logger.info("container %s put_archive %s/%s returns %s" % (container_name, path, filename, status))
except Exception as e:
logger.error("container %s put_archive %s/%s fails -- %s" % (container_name, path, filename, e))
def managemount(self, container):
from kooplex.lib.fs_dirname import Dirname
path, filename = os.path.split(self.dockerconf.get('mountconf', '/tmp/mount.conf'))
mapper = []
for v in container.volumes:
mapper.extend([ "%s:%s" % (v.volumetype, d) for d in Dirname.containervolume_listfolders(container, v) ])
#NOTE: mounter uses read to process the mapper configuration, thus we need to make sure '\n' terminates the config mapper file
mapper.append('')
logger.debug("container %s map %s" % (container, mapper))
file_data = "\n".join(mapper).encode('utf8')
self._writefile(container.name, path, filename, file_data)
def trigger_impersonator(self, vcproject): #FIXME: dont call it 1-by-1
from kooplex.lib.fs_dirname import Dirname
container_name = self.dockerconf.get('impersonator', 'impersonator')
path, filename = os.path.split(self.dockerconf.get('gitcommandconf', '/tmp/gitcommand.conf'))
cmdmaps = []
token = vcproject.token
fn_clonesh = os.path.join(Dirname.vcpcache(vcproject), "clone.sh")
fn_key = os.path.join(Dirname.userhome(vcproject.token.user), '.ssh', token.fn_rsa)
cmdmaps.append("%s:%s:%s:%s" % (token.user.username, fn_key, token.repository.domain, fn_clonesh))
cmdmaps.append('')
file_data = "\n".join(cmdmaps).encode('utf8')
self._writefile(container_name, path, filename, file_data)
def run_container(self, container):
docker_container_info = self.get_container(container)
if docker_container_info is None:
logger.debug("Container did not exist, Creating new one")
docker_container_info = self.create_container(container)
container_state = docker_container_info['Status']
if container_state == 'Created' or container_state.startswith('Exited'):
logger.debug("Starting container")
self.start_container(container)
def refresh_container_state(self, container):
docker_container_info = self.get_container(container)
container_state = docker_container_info['State']
logger.debug("Container state %s" % container_state)
container.last_message = str(container_state)
container.last_message_at = now()
container.save()
def start_container(self, container):
self.client.start(container.name)
# we need to retrieve the container state after starting it
docker_container_info = self.get_container(container)
container_state = docker_container_info['State']
logger.debug("Container state %s" % container_state)
container.last_message = str(container_state)
container.last_message_at = now()
assert container_state == 'running', "Container failed to start: %s" % docker_container_info
def stop_container(self, container):
try:
self.client.stop(container.name)
container.last_message = 'Container stopped'
except Exception as e:
logger.warn("docker container not found by API -- %s" % e)
container.last_message = str(e)
def remove_container(self, container):
try:
self.client.remove_container(container.name)
container.last_message = 'Container removed'
container.last_message_at = now()
except Exception as e:
logger.warn("docker container not found by API -- %s" % e)
container.last_message = str(e)
container.last_message_at = now()
logger.debug("Container removed %s" % container.name)
#FIXME: az execute2 lesz az igazi...
def execute(self, container, command):
logger.info("execution: %s in %s" % (command, container))
execution = self.client.exec_create(container = container.name, cmd = shlex.split(command))
return self.client.exec_start(execution, detach = False)
def execute2(self, container, command):
logger.info("execution: %s in %s" % (command, container))
execution = self.client.exec_create(container = container.name, cmd = shlex.split(command))
response = self.client.exec_start(exec_id = execution['Id'], stream = False)
check = self.client.exec_inspect(exec_id = execution['Id'])
self.check = check
if check['ExitCode'] != 0:
logger.error('Execution %s in %s failed -- %s' % (command, container, check))
return response.decode()
def download(url, filename, cache=None):
if cache is not None:
basename = os.path.basename(filename)
cachename = os.path.join(cache, basename)
if os.path.isfile(cachename):
print('- using cached version of', basename)
shutil.copy(cachename, filename)
return
# Special url to find a file associated with a github release.
# github://cf-platform-eng/meta-buildpack/meta-buildpack.tgz
# will find the file named meta-buildpack-0.0.3.tgz in the latest
# release for https://github.com/cf-platform-eng/meta-buildpack
if url.startswith("github:"):
repo_name = url.lstrip("github:").lstrip("/").lstrip("/")
file_name = os.path.basename(repo_name)
repo_name = os.path.dirname(repo_name)
url = "https://api.github.com/repos/" + repo_name + "/releases/latest"
response = requests.get(url, stream=True)
response.raise_for_status()
release = response.json()
assets = release.get('assets', [])
url = None
pattern = re.compile('.*\\.'.join(file_name.rsplit('.', 1))+'\\Z')
for asset in assets:
if pattern.match(asset['name']) is not None:
url = asset['browser_download_url']
break
if url is None:
print('no matching asset found for repo', repo_name, 'file', file_name, file=sys.stderr)
sys.exit(1)
# Fallthrough intentional, we now proceed to download the URL we found
if url.startswith("http:") or url.startswith("https"):
# [mboldt:20160908] Using urllib.urlretrieve gave an "Access
# Denied" page when trying to download docker boshrelease.
# I don't know why. requests.get works. Do what works.
response = requests.get(url, stream=True)
response.raise_for_status()
with open(filename, 'wb') as file:
for chunk in response.iter_content(chunk_size=1024):
if chunk:
file.write(chunk)
elif url.startswith("docker:"):
docker_image = url.lstrip("docker:").lstrip("/").lstrip("/")
try:
from docker.client import Client
from docker.utils import kwargs_from_env
kwargs = kwargs_from_env()
kwargs['tls'] = False
docker_cli = Client(**kwargs)
image = docker_cli.get_image(docker_image)
image_tar = open(filename,'w')
image_tar.write(image.data)
image_tar.close()
except KeyError as e:
print('docker not configured on this machine (or environment variables are not properly set)', file=sys.stderr)
sys.exit(1)
except:
print(docker_image, 'not found on local machine', file=sys.stderr)
print('you must either pull the image, or download it and use the --cache option', file=sys.stderr)
sys.exit(1)
elif os.path.isdir(url):
shutil.copytree(url, filename)
else:
shutil.copy(url, filename)
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
def download(url, filename, cache=None):
if cache is not None:
basename = os.path.basename(filename)
cachename = os.path.join(cache, basename)
if os.path.isfile(cachename):
print('- using cached version of', basename)
shutil.copy(cachename, filename)
return
# Special url to find a file associated with a github release.
# github://cf-platform-eng/meta-buildpack/meta-buildpack.tgz
# will find the file named meta-buildpack-0.0.3.tgz in the latest
# release for https://github.com/cf-platform-eng/meta-buildpack
if url.startswith("github:"):
repo_name = url.replace('github:', '', 1).lstrip("/")
file_name = os.path.basename(repo_name)
repo_name = os.path.dirname(repo_name)
url = "https://api.github.com/repos/" + repo_name + "/releases/latest"
response = requests.get(url, stream=True)
response.raise_for_status()
release = response.json()
assets = release.get('assets', [])
url = None
pattern = re.compile('.*\\.'.join(file_name.rsplit('.', 1)) + '\\Z')
for asset in assets:
if pattern.match(asset['name']) is not None:
url = asset['browser_download_url']
break
if url is None:
print('no matching asset found for repo',
repo_name,
'file',
file_name,
file=sys.stderr)
sys.exit(1)
# Fallthrough intentional, we now proceed to download the URL we found
if url.startswith("http:") or url.startswith("https"):
# [mboldt:20160908] Using urllib.urlretrieve gave an "Access
# Denied" page when trying to download docker boshrelease.
# I don't know why. requests.get works. Do what works.
response = requests.get(url, stream=True)
response.raise_for_status()
with open(filename, 'wb') as file:
for chunk in response.iter_content(chunk_size=1024):
if chunk:
file.write(chunk)
elif url.startswith("docker:"):
docker_image = url.replace('docker:', '', 1)
try:
from docker.client import Client
docker_cli = Client.from_env()
docker_cli.pull(docker_image)
image = docker_cli.get_image(docker_image)
image_tar = open(filename, 'w')
image_tar.write(image.data)
image_tar.close()
except KeyError as e:
print(
'docker not configured on this machine (or environment variables are not properly set)',
file=sys.stderr)
sys.exit(1)
except Exception as e:
print(e)
print(docker_image, 'not found on local machine', file=sys.stderr)
print(
'you must either pull the image, or download it and use the --cache option',
file=sys.stderr)
sys.exit(1)
elif os.path.isdir(url):
shutil.copytree(url, filename)
else:
shutil.copy(url, filename)
if cache:
if os.path.isdir(filename):
basename = os.path.basename(filename)
cachedir = os.path.join(cache, basename)
if os.path.exists(cachedir):
shutil.rmtree(cachedir)
shutil.copytree(filename, os.path.join(cache, basename))
elif os.path.isfile(filename):
shutil.copy(filename, cache)
else:
print(filename,
'is not a file or directory. Cannot cache.',
file=sys.stderr)
def get_docker_client():
"""
Try to fire up boot2docker and set any environmental variables
"""
# For Mac
try:
# Get boot2docker info (will fail if not Mac)
process = ['boot2docker', 'info']
p = subprocess.Popen(process, stdout=PIPE)
boot2docker_info = json.loads(p.communicate()[0])
# Defaults
docker_host = ''
docker_cert_path = ''
docker_tls_verify = ''
# Start the boot2docker VM if it is not already running
if boot2docker_info['State'] != "running":
print('Starting Boot2Docker VM:')
# Start up the Docker VM
process = ['boot2docker', 'start']
subprocess.call(process)
if ('DOCKER_HOST' not in os.environ) or ('DOCKER_CERT_PATH' not in os.environ) or ('DOCKER_TLS_VERIFY' not in os.environ):
# Get environmental variable values
process = ['boot2docker', 'shellinit']
p = subprocess.Popen(process, stdout=PIPE)
boot2docker_envs = p.communicate()[0].split()
for env in boot2docker_envs:
if 'DOCKER_HOST' in env:
docker_host = env.split('=')[1]
elif 'DOCKER_CERT_PATH' in env:
docker_cert_path = env.split('=')[1]
elif 'DOCKER_TLS_VERIFY' in env:
docker_tls_verify = env.split('=')[1]
# Set environmental variables
os.environ['DOCKER_TLS_VERIFY'] = docker_tls_verify
os.environ['DOCKER_HOST'] = docker_host
os.environ['DOCKER_CERT_PATH'] = docker_cert_path
else:
# Handle case when boot2docker is already running
docker_host = os.environ['DOCKER_HOST'].split('=')[1]
# Get the arguments form the environment
client_kwargs = kwargs_from_env(assert_hostname=False)
client_kwargs['version'] = MINIMUM_API_VERSION
# Find the right version of the API by creating a DockerClient with the minimum working version
# Then test to see if the Docker is running a later version than the minimum
# See: https://github.com/docker/docker-py/issues/439
version_client = DockerClient(**client_kwargs)
client_kwargs['version'] = get_api_version(MAX_CLIENT_DOCKER_API_VERSION, version_client.version()['ApiVersion'])
# Create Real Docker client
docker_client = DockerClient(**client_kwargs)
# Derive the host address only from string formatted: "tcp://<host>:<port>"
docker_client.host = docker_host.split(':')[1].strip('//')
return docker_client
# For Linux
except OSError:
# Find the right version of the API by creating a DockerClient with the minimum working version
# Then test to see if the Docker is running a later version than the minimum
# See: https://github.com/docker/docker-py/issues/439
version_client = DockerClient(base_url='unix://var/run/docker.sock', version=MINIMUM_API_VERSION)
version = get_api_version(MAX_CLIENT_DOCKER_API_VERSION, version_client.version()['ApiVersion'])
docker_client = DockerClient(base_url='unix://var/run/docker.sock', version=version)
docker_client.host = DEFAULT_DOCKER_HOST
return docker_client
except:
raise