def client(self):
base_url = self._get_base_url()
if base_url is not None:
try:
tls = False
_tlsconfig = self._get_tlsconfig()
if _tlsconfig is not None:
client_cert = (_tlsconfig.get('tlscert'),
_tlsconfig.get('tlskey'))
ca_cert = _tlsconfig.get('tlscacert')
verify = True if _tlsconfig.get(
'tlsverify') == '1' else False
tls = TLSConfig(client_cert=client_cert,
ca_cert=ca_cert,
verify=verify)
cli = Client(base_url,
version=self.version,
timeout=3,
tls=tls)
# Hits the /_ping endpoint of the remote API and returns the result.
# An exception will be raised if the endpoint isn't responding.
if cli.ping() == 'OK':
cli.close()
return Client(base_url,
version=self.version,
timeout=600,
tls=tls)
return
except errors.DockerException as e:
pyprint(e)
return
print('No available swarm api')
return
class DockerEventManager(Thread):
def __init__(self, manager, url=None):
super(DockerEventManager, self).__init__()
self.manager = manager
self.url = url
self.daemon = True
self.client = Client(self.url)
def run(self):
for payload in self.client.events():
event = loads(payload)
status = event.pop("status")
docker_event = DOCKER_EVENTS.get(status)
if docker_event is not None:
self.manager.fire(docker_event(**event), "docker")
else:
print(
"WARNING: Unknown Docker Event <{0:s}({1:s})>".format(
status, repr(event)
),
file=sys.stderr
)
def stop(self):
self.client.close()
class DockerEventManager(Thread):
def __init__(self, manager, url=None):
super(DockerEventManager, self).__init__()
self.manager = manager
self.url = url
self.daemon = True
self.client = Client(self.url)
def run(self):
for payload in self.client.events():
event = loads(payload)
status = event.pop("status")
docker_event = DOCKER_EVENTS.get(status)
if docker_event is not None:
self.manager.fire(docker_event(**event), "docker")
else:
print("WARNING: Unknown Docker Event <{0:s}({1:s})>".format(
status, repr(event)),
file=sys.stderr)
def stop(self):
self.client.close()
class DockerLayer(object):
def __init__(self, name, tag):
self.__name__ = name
self.__bases__ = tuple([])
self.tag = tag
self.client = Client(base_url='unix://var/run/docker.sock')
try:
self.client.ping()
except ConnectionError as e:
# http://docker-py.readthedocs.org/en/latest/boot2docker/
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
self.client = Client(**kwargs)
def setUp(self):
if self.client.ping() == u'OK':
self.start()
else:
raise RuntimeError('Docker is not available.\nMake sure you have Docker installed before running tests.\nVisit https://docker.com for installation instructions.')
def start(self):
for line in self.client.build(
path=os.path.abspath(os.path.join(DIR, '..')),
tag=self.tag, rm=True, forcerm=True):
sys.stdout.write(line)
def tearDown(self):
self.stop()
def stop(self):
self.client.close()
class DockerLayer(object):
def __init__(self, name, tag):
self.__name__ = name
self.__bases__ = tuple([])
self.tag = tag
self.client = Client(base_url='unix://var/run/docker.sock')
try:
self.client.ping()
except ConnectionError as e:
# http://docker-py.readthedocs.org/en/latest/boot2docker/
kwargs = kwargs_from_env()
kwargs['tls'].assert_hostname = False
self.client = Client(**kwargs)
def setUp(self):
if self.client.ping() == u'OK':
self.start()
else:
raise RuntimeError(
'Docker is not available.\nMake sure you have Docker installed before running tests.\nVisit https://docker.com for installation instructions.'
)
def start(self):
for line in self.client.build(path=os.path.abspath(
os.path.join(DIR, '..')),
tag=self.tag,
rm=True,
forcerm=True):
sys.stdout.write(line)
def tearDown(self):
self.stop()
def stop(self):
self.client.close()
class Main(object):
__version = '16.6.22'
__name = path.basename(argv[0])
__docker_host = 'unix://var/run/docker.sock'
__cli = None
def __init__(self):
action = self.parse_args()
try:
self.__cli = Client(base_url=self.__docker_host)
except errors.DockerException as err:
self.die(err.message)
if action == 'list':
self.display_list()
def __del__(self):
if self.__cli:
self.__cli.close()
@staticmethod
def die(message=None, code=1):
if message is not None:
print(message, file=stderr)
exit(code)
def parse_args(self):
parser = ArgumentParser()
parser.add_argument('-v', '--version',
help='show version', action="store_true")
parser.add_argument('action', help='dupa', choices=['list'])
parser.add_argument('-H', '--host', help='Socket or URL to bind to (default: unix:///var/run/docker.sock)')
args = parser.parse_args()
if args.version:
self.display_version()
exit()
if args.host:
self.__docker_host = args.host
return args.action
def display_version(self):
print('%s version %s' % (self.__name, self.__version))
def display_list(self):
containers = None
try:
containers = self.__cli.containers(all=True)
except exceptions.ConnectionError:
self.die('Problem connecting to Docker Host')
print('Containers found: %s' % len(containers))
if containers:
table = PrettyTable(['Name', 'IP Address', 'Image', 'Status'])
for container in containers:
table.add_row([container['Names'][0].replace('/', ''),
container['NetworkSettings']['Networks']['bridge']['IPAddress'],
container['Image'], container['Status']])
print(table)
def client(self):
base_url = self._get_base_url()
if base_url is not None:
try:
cli = Client(base_url, version=self.version, timeout=3)
# Hits the /_ping endpoint of the remote API and returns the result.
# An exception will be raised if the endpoint isn't responding.
if cli.ping() == "OK":
cli.close()
return Client(base_url, version=self.version, timeout=3600)
return
except errors.DockerException as e:
print(e)
return
print("No available swarm api")
return
class MonitorThread(Thread):
def __init__(self, app, sock, dockerEvents):
super(MonitorThread, self).__init__()
self.app = app
self.sock = sock
self.dockerEvents = dockerEvents
self.cli = Client(base_url=self.sock)
def run(self):
# Listen for Docker events
for event in self.cli.events():
event = json.loads(event.decode('utf-8'))
if event.get("status") in self.dockerEvents:
self.app.updateProxy()
def stop(self):
self.cli.close()
class DockerCluster(BaseCluster):
IMAGE_NAME_BASE = os.path.join('teradatalabs', 'pa_test')
BARE_CLUSTER_TYPE = 'bare'
"""Start/stop/control/query arbitrary clusters of docker containers.
This class is aimed at product test writers to create docker containers
for testing purposes.
"""
def __init__(self, master_host, slave_hosts,
local_mount_dir, docker_mount_dir):
# see PyDoc for all_internal_hosts() for an explanation on the
# difference between an internal and regular host
self.internal_master = master_host
self.internal_slaves = slave_hosts
self.master = master_host + '-' + str(uuid.uuid4())
self.slaves = [slave + '-' + str(uuid.uuid4())
for slave in slave_hosts]
# the root path for all local mount points; to get a particular
# container mount point call get_local_mount_dir()
self.local_mount_dir = local_mount_dir
self.mount_dir = docker_mount_dir
kwargs = kwargs_from_env()
if 'tls' in kwargs:
kwargs['tls'].assert_hostname = False
kwargs['timeout'] = 300
self.client = Client(**kwargs)
self._DOCKER_START_TIMEOUT = 30
DockerCluster.__check_if_docker_exists()
def all_hosts(self):
return self.slaves + [self.master]
def get_master(self):
return self.master
def all_internal_hosts(self):
return [host.split('-')[0] for host in self.all_hosts()]
def get_local_mount_dir(self, host):
return os.path.join(self.local_mount_dir,
self.__get_unique_host(host))
def get_dist_dir(self, unique):
if unique:
return os.path.join(DIST_DIR, self.master)
else:
return DIST_DIR
def __get_unique_host(self, host):
matches = [unique_host for unique_host in self.all_hosts()
if unique_host.startswith(host)]
if matches:
return matches[0]
elif host in self.all_hosts():
return host
else:
raise DockerClusterException(
'Specified host: {0} does not exist.'.format(host))
@staticmethod
def __check_if_docker_exists():
try:
subprocess.call(['docker', '--version'])
except OSError:
sys.exit('Docker is not installed. Try installing it with '
'presto-admin/bin/install-docker.sh.')
def create_image(self, path_to_dockerfile_dir, image_tag, base_image,
base_image_tag=None):
self.fetch_image_if_not_present(base_image, base_image_tag)
output = self._execute_and_wait(self.client.build,
path=path_to_dockerfile_dir,
tag=image_tag,
rm=True)
if not self._is_image_present_locally(image_tag, 'latest'):
raise OSError('Unable to build image %s: %s' % (image_tag, output))
def fetch_image_if_not_present(self, image, tag=None):
if not tag and not self.client.images(image):
self._execute_and_wait(self.client.pull, image)
elif tag and not self._is_image_present_locally(image, tag):
self._execute_and_wait(self.client.pull, image, tag)
def _is_image_present_locally(self, image_name, tag):
image_name_and_tag = image_name + ':' + tag
images = self.client.images(image_name)
if images:
for image in images:
if image_name_and_tag in image['RepoTags']:
return True
return False
def start_containers(self, master_image, slave_image=None,
cmd=None, **kwargs):
self._create_host_mount_dirs()
self._create_and_start_containers(master_image, slave_image,
cmd, **kwargs)
self._ensure_docker_containers_started(master_image)
sleep(3)
def tear_down(self):
for container_name in self.all_hosts():
self._tear_down_container(container_name)
self._remove_host_mount_dirs()
if self.client:
self.client.close()
self.client = None
def _tear_down_container(self, container_name):
try:
shutil.rmtree(self.get_dist_dir(unique=True))
except OSError as e:
# no such file or directory
if e.errno != errno.ENOENT:
raise
try:
self.stop_host(container_name)
self.client.remove_container(container_name, v=True, force=True)
except APIError as e:
# container does not exist
if e.response.status_code != 404:
raise
def stop_host(self, container_name):
self.client.stop(container_name)
self.client.wait(container_name)
def start_host(self, container_name):
self.client.start(container_name)
def get_down_hostname(self, host_name):
return host_name
def _remove_host_mount_dirs(self):
for container_name in self.all_hosts():
try:
shutil.rmtree(
self.get_local_mount_dir(container_name))
except OSError as e:
# no such file or directory
if e.errno != errno.ENOENT:
raise
def _create_host_mount_dirs(self):
for container_name in self.all_hosts():
try:
os.makedirs(
self.get_local_mount_dir(container_name))
except OSError as e:
# file exists
if e.errno != errno.EEXIST:
raise
@staticmethod
def _execute_and_wait(func, *args, **kwargs):
ret = func(*args, **kwargs)
# go through all lines in returned stream to ensure func finishes
output = ''
for line in ret:
output += line
return output
def _create_and_start_containers(self, master_image, slave_image=None,
cmd=None, **kwargs):
if slave_image:
for container_name in self.slaves:
container_mount_dir = \
self.get_local_mount_dir(container_name)
self._create_container(
slave_image, container_name,
container_name.split('-')[0], cmd
)
self.client.start(container_name,
binds={container_mount_dir:
{'bind': self.mount_dir,
'ro': False}},
**kwargs)
master_mount_dir = self.get_local_mount_dir(self.master)
self._create_container(
master_image, self.master, hostname=self.internal_master,
cmd=cmd
)
self.client.start(self.master,
binds={master_mount_dir:
{'bind': self.mount_dir,
'ro': False}},
links=zip(self.slaves, self.slaves), **kwargs)
self._add_hostnames_to_slaves()
def _create_container(self, image, container_name, hostname=None,
cmd=None):
self._execute_and_wait(self.client.create_container,
image,
detach=True,
name=container_name,
hostname=hostname,
volumes=self.local_mount_dir,
command=cmd,
host_config={'mem_limit': '2g'})
def _add_hostnames_to_slaves(self):
ips = self.get_ip_address_dict()
additions_to_etc_hosts = ''
for host in self.all_internal_hosts():
additions_to_etc_hosts += '%s\t%s\n' % (ips[host], host)
for host in self.slaves:
self.exec_cmd_on_host(
host,
'bin/bash -c \'echo "%s" >> /etc/hosts\''
% additions_to_etc_hosts
)
def _ensure_docker_containers_started(self, image):
centos_based_images = [BASE_TD_IMAGE_NAME]
timeout = 0
is_host_started = {}
for host in self.all_hosts():
is_host_started[host] = False
while timeout < self._DOCKER_START_TIMEOUT:
for host in self.all_hosts():
atomic_is_started = True
atomic_is_started &= \
self.client.inspect_container(host)['State']['Running']
if image in centos_based_images or \
image.startswith(self.IMAGE_NAME_BASE):
atomic_is_started &= \
self._are_centos_container_services_up(host)
is_host_started[host] = atomic_is_started
if not DockerCluster._are_all_hosts_started(is_host_started):
timeout += 1
sleep(1)
else:
break
if timeout is self._DOCKER_START_TIMEOUT:
raise DockerClusterException(
'Docker container timed out on start.' + str(is_host_started))
@staticmethod
def _are_all_hosts_started(host_started_map):
all_started = True
for host in host_started_map.keys():
all_started &= host_started_map[host]
return all_started
def _are_centos_container_services_up(self, host):
"""Some essential services in our CentOS containers take some time
to start after the container itself is up. This function checks
whether those services are up and returns a boolean accordingly.
Specifically, we check that the app-admin user has been created
and that the ssh daemon is up, as well as that the SSH keys are
in the right place.
Args:
host: the host to check.
Returns:
True if the specified services have started, False otherwise.
"""
ps_output = self.exec_cmd_on_host(host, 'ps')
# also ensure that the app-admin user exists
try:
user_output = self.exec_cmd_on_host(
host, 'grep app-admin /etc/passwd'
)
user_output += self.exec_cmd_on_host(host, 'stat /home/app-admin')
except OSError:
user_output = ''
if 'sshd_bootstrap' in ps_output or 'sshd\n' not in ps_output\
or not user_output:
return False
# check for .ssh being in the right place
ssh_output = self.exec_cmd_on_host(host, 'ls /home/app-admin/.ssh')
if 'id_rsa' not in ssh_output:
return False
return True
def exec_cmd_on_host(self, host, cmd, user=None, raise_error=True,
tty=False):
ex = self.client.exec_create(self.__get_unique_host(host), cmd,
tty=tty, user=user)
output = self.client.exec_start(ex['Id'], tty=tty)
exit_code = self.client.exec_inspect(ex['Id'])['ExitCode']
if raise_error and exit_code:
raise OSError(exit_code, output)
return output
@staticmethod
def _get_tag_basename(bare_image_provider, cluster_type, ms):
return '_'.join(
[bare_image_provider.get_tag_decoration(), cluster_type, ms])
@staticmethod
def _get_master_image_name(bare_image_provider, cluster_type):
return os.path.join(DockerCluster.IMAGE_NAME_BASE,
DockerCluster._get_tag_basename(
bare_image_provider, cluster_type, 'master'))
@staticmethod
def _get_slave_image_name(bare_image_provider, cluster_type):
return os.path.join(DockerCluster.IMAGE_NAME_BASE,
DockerCluster._get_tag_basename(
bare_image_provider, cluster_type, 'slave'))
@staticmethod
def start_bare_cluster(bare_image_provider):
dc = DockerCluster
master_name = dc._get_master_image_name(bare_image_provider,
dc.BARE_CLUSTER_TYPE)
slave_name = dc._get_slave_image_name(bare_image_provider,
dc.BARE_CLUSTER_TYPE)
centos_cluster = DockerCluster('master',
['slave1', 'slave2', 'slave3'],
DEFAULT_LOCAL_MOUNT_POINT,
DEFAULT_DOCKER_MOUNT_POINT)
if not dc._check_for_images(master_name, slave_name):
bare_image_provider.create_bare_images(centos_cluster, master_name,
slave_name)
centos_cluster.start_containers(master_name, slave_name)
return centos_cluster
@staticmethod
def start_existing_images(bare_image_provider, cluster_type):
dc = DockerCluster
master_name = dc._get_master_image_name(bare_image_provider,
cluster_type)
slave_name = dc._get_slave_image_name(bare_image_provider,
cluster_type)
if not dc._check_for_images(master_name, slave_name):
return None
centos_cluster = DockerCluster('master',
['slave1', 'slave2', 'slave3'],
DEFAULT_LOCAL_MOUNT_POINT,
DEFAULT_DOCKER_MOUNT_POINT)
centos_cluster.start_containers(master_name, slave_name)
return centos_cluster
@staticmethod
def _check_for_images(master_image_name, slave_image_name, tag='latest'):
master_repotag = '%s:%s' % (master_image_name, tag)
slave_repotag = '%s:%s' % (slave_image_name, tag)
with Client(timeout=180) as client:
images = client.images()
has_master_image = False
has_slave_image = False
for image in images:
if master_repotag in image['RepoTags']:
has_master_image = True
if slave_repotag in image['RepoTags']:
has_slave_image = True
return has_master_image and has_slave_image
def commit_images(self, bare_image_provider, cluster_type):
self.client.commit(self.master,
self._get_master_image_name(bare_image_provider,
cluster_type))
self.client.commit(self.slaves[0],
self._get_slave_image_name(bare_image_provider,
cluster_type))
def run_script_on_host(self, script_contents, host):
temp_script = '/tmp/tmp.sh'
self.write_content_to_host('#!/bin/bash\n%s' % script_contents,
temp_script, host)
self.exec_cmd_on_host(host, 'chmod +x %s' % temp_script)
return self.exec_cmd_on_host(host, temp_script, tty=True)
def write_content_to_host(self, content, path, host):
filename = os.path.basename(path)
dest_dir = os.path.dirname(path)
host_local_mount_point = self.get_local_mount_dir(host)
local_path = os.path.join(host_local_mount_point, filename)
with open(local_path, 'w') as config_file:
config_file.write(content)
self.exec_cmd_on_host(host, 'mkdir -p ' + dest_dir)
self.exec_cmd_on_host(
host, 'cp %s %s' % (os.path.join(self.mount_dir, filename),
dest_dir))
def copy_to_host(self, source_path, dest_host, **kwargs):
shutil.copy(source_path, self.get_local_mount_dir(dest_host))
def get_ip_address_dict(self):
ip_addresses = {}
for host, internal_host in zip(self.all_hosts(),
self.all_internal_hosts()):
inspect = self.client.inspect_container(host)
ip_addresses[host] = inspect['NetworkSettings']['IPAddress']
ip_addresses[internal_host] = \
inspect['NetworkSettings']['IPAddress']
return ip_addresses
def _post_presto_install(self):
for worker in self.slaves:
self.run_script_on_host(
'sed -i /node.id/d /etc/presto/node.properties; '
'uuid=$(uuidgen); '
'echo node.id=$uuid >> /etc/presto/node.properties',
worker
)
def postinstall(self, installer):
from tests.product.standalone.presto_installer \
import StandalonePrestoInstaller
_post_install_hooks = {
StandalonePrestoInstaller: DockerCluster._post_presto_install
}
hook = _post_install_hooks.get(installer, None)
if hook:
hook(self)
class DockerCluster(BaseCluster):
IMAGE_NAME_BASE = os.path.join('teradatalabs', 'pa_test')
BARE_CLUSTER_TYPE = 'bare'
"""Start/stop/control/query arbitrary clusters of docker containers.
This class is aimed at product test writers to create docker containers
for testing purposes.
"""
def __init__(self, master_host, slave_hosts,
local_mount_dir, docker_mount_dir):
# see PyDoc for all_internal_hosts() for an explanation on the
# difference between an internal and regular host
self.internal_master = master_host
self.internal_slaves = slave_hosts
self._master = master_host + '-' + str(uuid.uuid4())
self.slaves = [slave + '-' + str(uuid.uuid4())
for slave in slave_hosts]
# the root path for all local mount points; to get a particular
# container mount point call get_local_mount_dir()
self.local_mount_dir = local_mount_dir
self._mount_dir = docker_mount_dir
kwargs = kwargs_from_env()
if 'tls' in kwargs:
kwargs['tls'].assert_hostname = False
kwargs['timeout'] = 300
self.client = Client(**kwargs)
self._user = '******'
DockerCluster.__check_if_docker_exists()
def all_hosts(self):
return self.slaves + [self.master]
def all_internal_hosts(self):
return [host.split('-')[0] for host in self.all_hosts()]
def get_local_mount_dir(self, host):
return os.path.join(self.local_mount_dir,
self.__get_unique_host(host))
def get_dist_dir(self, unique):
if unique:
return os.path.join(DIST_DIR, self.master)
else:
return DIST_DIR
def __get_unique_host(self, host):
matches = [unique_host for unique_host in self.all_hosts()
if unique_host.startswith(host)]
if matches:
return matches[0]
elif host in self.all_hosts():
return host
else:
raise DockerClusterException(
'Specified host: {0} does not exist.'.format(host))
@staticmethod
def __check_if_docker_exists():
try:
subprocess.call(['docker', '--version'])
except OSError:
sys.exit('Docker is not installed. Try installing it with '
'presto-admin/bin/install-docker.sh.')
def _is_image_present_locally(self, image_name, tag):
image_name_and_tag = image_name + ':' + tag
images = self.client.images(image_name)
if images:
for image in images:
if image_name_and_tag in image['RepoTags']:
return True
return False
def start_containers(self, master_image, slave_image=None,
cmd=None, **kwargs):
self._create_host_mount_dirs()
self._create_and_start_containers(master_image, slave_image,
cmd, **kwargs)
self._ensure_docker_containers_started(master_image)
def tear_down(self):
for container_name in self.all_hosts():
self._tear_down_container(container_name)
self._remove_host_mount_dirs()
if self.client:
self.client.close()
self.client = None
def _tear_down_container(self, container_name):
try:
shutil.rmtree(self.get_dist_dir(unique=True))
except OSError as e:
# no such file or directory
if e.errno != errno.ENOENT:
raise
try:
self.stop_host(container_name)
self.client.remove_container(container_name, v=True, force=True)
except APIError as e:
# container does not exist
if e.response.status_code != 404:
raise
def stop_host(self, container_name):
self.client.stop(container_name)
self.client.wait(container_name)
def start_host(self, container_name):
self.client.start(container_name)
def get_down_hostname(self, host_name):
return host_name
def _remove_host_mount_dirs(self):
for container_name in self.all_hosts():
try:
shutil.rmtree(
self.get_local_mount_dir(container_name))
except OSError as e:
# no such file or directory
if e.errno != errno.ENOENT:
raise
def _create_host_mount_dirs(self):
for container_name in self.all_hosts():
try:
os.makedirs(
self.get_local_mount_dir(container_name))
except OSError as e:
# file exists
if e.errno != errno.EEXIST:
raise
@staticmethod
def _execute_and_wait(func, *args, **kwargs):
ret = func(*args, **kwargs)
# go through all lines in returned stream to ensure func finishes
output = ''
for line in ret:
output += line
return output
def _create_and_start_containers(self, master_image, slave_image=None,
cmd=None, **kwargs):
if slave_image:
for container_name in self.slaves:
container_mount_dir = \
self.get_local_mount_dir(container_name)
self._create_container(
slave_image, container_name,
container_name.split('-')[0], cmd
)
self.client.start(container_name,
binds={container_mount_dir:
{'bind': self.mount_dir,
'ro': False}},
**kwargs)
master_mount_dir = self.get_local_mount_dir(self.master)
self._create_container(
master_image, self.master, hostname=self.internal_master,
cmd=cmd
)
self.client.start(self.master,
binds={master_mount_dir:
{'bind': self.mount_dir,
'ro': False}},
links=zip(self.slaves, self.slaves), **kwargs)
self._add_hostnames_to_slaves()
def _create_container(self, image, container_name, hostname=None,
cmd=None):
self._execute_and_wait(self.client.create_container,
image,
detach=True,
name=container_name,
hostname=hostname,
volumes=self.local_mount_dir,
command=cmd,
host_config={'mem_limit': '2g'})
def _add_hostnames_to_slaves(self):
ips = self.get_ip_address_dict()
additions_to_etc_hosts = ''
for host in self.all_internal_hosts():
additions_to_etc_hosts += '%s\t%s\n' % (ips[host], host)
for host in self.slaves:
self.exec_cmd_on_host(
host,
'bin/bash -c \'echo "%s" >> /etc/hosts\''
% additions_to_etc_hosts
)
@retry(stop_max_delay=_DOCKER_START_TIMEOUT, wait_fixed=_DOCKER_START_WAIT)
def _ensure_docker_containers_started(self, image):
# Strip off the tag, if there is one. We don't want to have to update
# the NO_WAIT_SSH_IMAGES list every time we update the docker images.
image_no_tag = image.split(':')[0]
host_started = {}
for host in self.all_hosts():
host_started[host] = False
for host in host_started.keys():
if host_started[host]:
continue
is_started = True
is_started &= \
self.client.inspect_container(host)['State']['Running']
if is_started and image_no_tag not in NO_WAIT_SSH_IMAGES:
is_started &= self._are_centos_container_services_up(host)
host_started[host] = is_started
not_started = [host for (host, started) in host_started.items() if not started]
if len(not_started):
raise NotStartedException(not_started)
@staticmethod
def _are_all_hosts_started(host_started_map):
all_started = True
for host in host_started_map.keys():
all_started &= host_started_map[host]
return all_started
def _are_centos_container_services_up(self, host):
"""Some essential services in our CentOS containers take some time
to start after the container itself is up. This function checks
whether those services are up and returns a boolean accordingly.
Specifically, we check that the app-admin user has been created
and that the ssh daemon is up, as well as that the SSH keys are
in the right place.
Args:
host: the host to check.
Returns:
True if the specified services have started, False otherwise.
"""
ps_output = self.exec_cmd_on_host(host, 'ps')
# also ensure that the app-admin user exists
try:
user_output = self.exec_cmd_on_host(
host, 'grep app-admin /etc/passwd'
)
user_output += self.exec_cmd_on_host(host, 'stat /home/app-admin')
except OSError:
user_output = ''
if 'sshd_bootstrap' in ps_output or 'sshd\n' not in ps_output\
or not user_output:
return False
# check for .ssh being in the right place
try:
ssh_output = self.exec_cmd_on_host(host, 'ls /home/app-admin/.ssh')
if 'id_rsa' not in ssh_output:
return False
except OSError:
return False
return True
def exec_cmd_on_host(self, host, cmd, user=None, raise_error=True,
tty=False, invoke_sudo=False):
ex = self.client.exec_create(self.__get_unique_host(host), ['sh', '-c', cmd],
tty=tty, user=user)
output = self.client.exec_start(ex['Id'], tty=tty)
exit_code = self.client.exec_inspect(ex['Id'])['ExitCode']
if raise_error and exit_code:
raise OSError(exit_code, output)
return output
@staticmethod
def _get_tag_basename(bare_image_provider, cluster_type, ms):
return '_'.join(
[bare_image_provider.get_tag_decoration(), cluster_type, ms])
@staticmethod
def _get_master_image_name(bare_image_provider, cluster_type):
return os.path.join(DockerCluster.IMAGE_NAME_BASE,
DockerCluster._get_tag_basename(
bare_image_provider, cluster_type, 'master'))
@staticmethod
def _get_slave_image_name(bare_image_provider, cluster_type):
return os.path.join(DockerCluster.IMAGE_NAME_BASE,
DockerCluster._get_tag_basename(
bare_image_provider, cluster_type, 'slave'))
@staticmethod
def _get_image_names(bare_image_provider, cluster_type):
dc = DockerCluster
return (dc._get_master_image_name(bare_image_provider, cluster_type),
dc._get_slave_image_name(bare_image_provider, cluster_type))
@staticmethod
def start_cluster(bare_image_provider, cluster_type, master_host='master',
slave_hosts=None, **kwargs):
if slave_hosts is None:
slave_hosts = ['slave1', 'slave2', 'slave3']
created_bare = False
dc = DockerCluster
centos_cluster = DockerCluster(master_host, slave_hosts,
DEFAULT_LOCAL_MOUNT_POINT,
DEFAULT_DOCKER_MOUNT_POINT)
master_name, slave_name = dc._get_image_names(
bare_image_provider, cluster_type)
if not dc._check_for_images(master_name, slave_name):
master_name, slave_name = dc._get_image_names(
bare_image_provider, dc.BARE_CLUSTER_TYPE)
if not dc._check_for_images(master_name, slave_name):
bare_image_provider.create_bare_images(
centos_cluster, master_name, slave_name)
created_bare = True
centos_cluster.start_containers(master_name, slave_name, **kwargs)
return centos_cluster, created_bare
@staticmethod
def _check_for_images(master_image_name, slave_image_name, tag='latest'):
master_repotag = '%s:%s' % (master_image_name, tag)
slave_repotag = '%s:%s' % (slave_image_name, tag)
with Client(timeout=180) as client:
images = client.images()
has_master_image = False
has_slave_image = False
for image in images:
if image['RepoTags'] is not None and master_repotag in image['RepoTags']:
has_master_image = True
if image['RepoTags'] is not None and slave_repotag in image['RepoTags']:
has_slave_image = True
return has_master_image and has_slave_image
def commit_images(self, bare_image_provider, cluster_type):
self.client.commit(self.master,
self._get_master_image_name(bare_image_provider,
cluster_type))
if self.slaves:
self.client.commit(self.slaves[0],
self._get_slave_image_name(bare_image_provider,
cluster_type))
def run_script_on_host(self, script_contents, host, tty=True):
temp_script = '/tmp/tmp.sh'
self.write_content_to_host('#!/bin/bash\n%s' % script_contents,
temp_script, host)
self.exec_cmd_on_host(host, 'chmod +x %s' % temp_script)
return self.exec_cmd_on_host(host, temp_script, tty=tty)
def write_content_to_host(self, content, path, host):
filename = os.path.basename(path)
dest_dir = os.path.dirname(path)
host_local_mount_point = self.get_local_mount_dir(host)
local_path = os.path.join(host_local_mount_point, filename)
with open(local_path, 'w') as config_file:
config_file.write(content)
self.exec_cmd_on_host(host, 'mkdir -p ' + dest_dir)
self.exec_cmd_on_host(
host, 'cp %s %s' % (os.path.join(self.mount_dir, filename),
dest_dir))
def copy_to_host(self, source_path, dest_host, **kwargs):
shutil.copy(source_path, self.get_local_mount_dir(dest_host))
def get_ip_address_dict(self):
ip_addresses = {}
for host, internal_host in zip(self.all_hosts(),
self.all_internal_hosts()):
inspect = self.client.inspect_container(host)
ip_addresses[host] = inspect['NetworkSettings']['IPAddress']
ip_addresses[internal_host] = \
inspect['NetworkSettings']['IPAddress']
return ip_addresses
def _post_presto_install(self):
for worker in self.slaves:
self.run_script_on_host(
'sed -i /node.id/d /etc/presto/node.properties; '
'uuid=$(uuidgen); '
'echo node.id=$uuid >> /etc/presto/node.properties',
worker
)
def postinstall(self, installer):
from tests.product.standalone.presto_installer \
import StandalonePrestoInstaller
_post_install_hooks = {
StandalonePrestoInstaller: DockerCluster._post_presto_install
}
hook = _post_install_hooks.get(installer, None)
if hook:
hook(self)
@property
def rpm_cache_dir(self):
return self._mount_dir
@property
def mount_dir(self):
return self._mount_dir
@property
def user(self):
return self._user
@property
def master(self):
return self._master
if not isinstance(args, Iterable):
args = (args, )
try:
self.cursor.execute(query_string, args)
except Exception as e:
return e
if __name__ == '__main__':
# docker stop $(docker ps -a -q)
from docker import Client as DockerClient
cli = DockerClient(base_url='unix:///var/run/docker.sock')
try:
container = cli.create_container(image='test_db_aioframe')
container_id = container.get('Id')
cli.start(container=container_id)
info = cli.inspect_container(container=container_id)
container_ip = info['NetworkSettings']['IPAddress']
time.sleep(1) # wait docker container restart postgresql
print('docker start')
import psycopg2
d = Model(psycopg2, {'database': 'test', 'user': '******', 'host': container_ip, 'password': '******'})
_c = d.query('select %s as vasa, %s as petya', (1, 1), name='A1')
except Exception as e:
for x in traceback.format_tb(e.__traceback__): print(x)
finally:
cli.close()
print('docker stop')
class ContainerHandler(ResourceHandler):
@classmethod
def is_available(self, io):
return True
def __init__(self, agent, io=None):
super().__init__(agent, io)
self._client = None
def pre(self, ctx, resource: Container):
self._client = Client(base_url="unix://var/run/docker.sock")
def post(self, ctx, resource: Container):
self._client.close()
def check_resource(self, ctx, resource: Container):
current = resource.clone()
containers = self._client.containers(all=True)
docker_resource = None
for container in containers:
names = container["Names"]
search_name = resource.name
if search_name[0] != "/":
search_name = "/" + search_name
if search_name in names:
docker_resource = container
if docker_resource is None:
current.state = "purged"
return current
else:
data = self._client.inspect_container(docker_resource["Id"])
current.state = data["State"]["Status"]
ctx.set("container_id", docker_resource["Id"])
return current
def do_changes(self, ctx, resource: Container, changes) -> bool:
"""
Enforce the changes
"""
if "state" in changes:
state = changes["state"]
if state["current"] == "purged" and state["desired"] == "running":
# ensure the image is pulled
images = self._client.images(name=resource.image)
if len(images) == 0:
msg = self._client.pull(resource.image)
if "not found" in msg:
raise Exception("Failed to pull image %s: %s" %
(resource.image, msg))
cont = self._client.create_container(
image=resource.image,
command=resource.command,
detach=resource.detach,
host_config={"memory_limit": resource.memory_limit})
self._client.start(cont["Id"])
self._client.rename(cont["Id"], resource.name)
ctx.set_created()
elif state["desired"] == "purged":
container_id = ctx.get("container_id")
if state["current"] == "running":
self._client.stop(container_id)
self._client.remove_container(container_id)
ctx.set_purged()
def facts(self, resource: Container):
"""
Get facts about this resource
"""
return {}