def connect_container_to_network(container, net_id, links):
try:
docker_cli = Client(base_url=docker_socket)
docker_cli.connect_container_to_network(container, net_id, links=links)
except Exception, e:
log.exception('failed-connection-to-network',
container=container,
net_id=net_id,
e=e)
raise
class SwarmConnector(object):
def __init__(self, url):
self.url = url
self.consul_url = "consul://vm-imdmresearch-keller-06.eaalab.hpi.uni-potsdam.de:8500"
self.nodes = []
self.instances = []
self.workload_is_set = False
self.throughput = 0
self.docker = Client(base_url='tcp://vm-imdmresearch-keller-01.eaalab.hpi.uni-potsdam.de:8888', timeout=180) #TODO
self.lock = threading.Lock()
self.dispatcher_url = "" #internal ip
self.master_url = ""
self.dispatcher_node_url = ""
self.dispatcher_ip = "" # external ip to receive queries
def set_url(self, url):
self.url = url
def connect(self):
self.docker = Client(base_url=self.url, timeout=180)
self.connected = True
return self.docker.info()
def update_nodes_and_instances(self):
## Nodes
self.lock.acquire()
try:
# We need to use a local client here as this command cannot be executed within swarm
local_docker = Client(base_url='tcp://vm-imdmresearch-keller-01.eaalab.hpi.uni-potsdam.de:2375') # TODO: remove remote IP
container = local_docker.create_container(image='swarm', command='list {}'.format(self.consul_url))
start = local_docker.start(container=container.get('Id'))
wait = local_docker.wait(container=container.get('Id'))
output = local_docker.logs(container=container.get('Id'))
local_docker.remove_container(container=container.get('Id'), force=True)
# swarm list prints an info line before the actual nodes
response = [n for n in output.decode("utf-8").split('\n') if "level" not in n]
print(response)
if response:
self.nodes = [{"hostname": n.split('.')[0].replace('keller-', ''), "runningContainers": 0} for n in response if n != ''] # TODO: find a more reliable way to return the hostname
if self.dispatcher_node_url != "":
r = requests.get("http://" + self.dispatcher_node_url + ":8080/node_info")
instances_info = r.json()['hosts']
else:
instances_info = None
print(instances_info)
## Instances
if not self.docker:
return "Error: not connected to swarm"
containers = self.docker.containers(all=True, filters={'status': 'running'})
instances = []
for container in containers:
info = self.docker.inspect_container(container=container.get('Id'))
if "hyrise/dispatcher" in container["Image"]:
instances.append({
"type": "Dispatcher",
"name": container["Names"][0],
"node": container["Names"][0].split('/')[1].replace('keller-', ''),
"Id": container["Id"],
"ip": info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]
})
self.dispatcher_url = info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]
self.dispatcher_node_url = info["Node"]["Addr"].split(':')[0]
self.dispatcher_ip = info["Node"]["IP"]
elif "hyrise/hyrise_nvm" in container["Image"]:
swarm_ip = info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]
queries = 0
total_time = 0
throughput = "n.a."
if instances_info:
info = [i for i in instances_info if i['ip'] == swarm_ip]
if len(info) == 1:
queries = int(info[0]['total_queries'])
total_time = int(info[0]['total_time'])
if queries != 0:
throughput = "%.2f ms" % (total_time/queries/1000)
instances.append({
"type": container["Labels"]["type"].capitalize(),
"name": container["Names"][0],
"node": container["Names"][0].split('/')[1].replace('keller-', ''),
"Id": container["Id"],
"ip": swarm_ip,
"throughput": throughput,
"totalTime": total_time,
"queries": queries
})
self.instances = instances
for node in self.nodes:
node["runningContainers"] = sum(1 for i in instances if i["node"] == node["hostname"])
for instance in self.instances:
container_exec = self.docker.exec_create(
container=instance["Id"],
cmd="cat /proc/loadavg",
)
load = self.docker.exec_start(
exec_id=container_exec["Id"]
)
instance["load"] = load.decode(encoding='UTF-8').split(' ')[0] # TODO: do the split with awk in exec cmd
except Exception:
print("Exception")
self.lock.release()
def get_nodes(self):
return self.nodes
def get_instances(self):
return self.instances
def reset_instances(self):
if not self.docker:
return "Error: not connected to swarm"
self.lock.acquire()
containers = self.docker.containers(all=True)
for container in containers:
if "hyrise" in container["Image"]:
self.docker.remove_container(container=container.get('Id'), force=True)
self.instances = []
for node in self.nodes:
node["runningContainers"] = 0
self.dispatcher_url = ""
self.master_url = ""
self.dispatcher_node_url = ""
self.dispatcher_ip = ""
self.lock.release()
def start_dispatcher(self):
container = self.docker.create_container(
image='hyrise/dispatcher:docker',
command='./start_dispatcher 8080 settings.json',
ports=[8080],
labels={"type": "dispatcher"},
host_config=self.docker.create_host_config(port_bindings={
8080: 8080, # expose dispatcher for debugging. TODO: remove
})
)
start = self.docker.start(container=container.get('Id'))
connect = self.docker.connect_container_to_network(container=container.get('Id'), net_id="swarm_network")
info = self.docker.inspect_container(container=container.get('Id'))
self.dispatcher_url = info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]
# for accessing the dispatcher from outside the swarm cluster
self.dispatcher_node_url = info["Node"]["Addr"].split(':')[0]
return {"node": info["Node"]["Addr"], "ip": info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]}
def start_master(self):
container = self.docker.create_container(
image='hyrise/hyrise_nvm:latest',
command='/bin/bash -c "sleep 2 && wget http://vm-imdmresearch-keller-01.eaalab.hpi.uni-potsdam.de:8000/ORDER_LINE.tbl && \
./build/hyrise-server_release --dispatcherurl="{}" --dispatcherport="8080" --port=5001 --corecount=2 --nodeId=0"'.format(self.dispatcher_url),
ports=[5001],
labels={"type": "master"}
)
start = self.docker.start(container=container.get('Id'))
connect = self.docker.connect_container_to_network(container=container.get('Id'), net_id="swarm_network")
info = self.docker.inspect_container(container=container.get('Id'))
self.master_url = info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]
return {"node": info["Node"]["Addr"], "ip": info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]}
def start_replica(self):
container = self.docker.create_container(
image='hyrise/hyrise_nvm:latest',
command='/bin/bash -c "sleep 2 && wget http://vm-imdmresearch-keller-01.eaalab.hpi.uni-potsdam.de:8000/ORDER_LINE.tbl && \
./build/hyrise-server_release --masterurl="{}" --dispatcherurl="{}" --dispatcherport="8080" --port=5001 --corecount=2 --nodeId={}"'.format(self.master_url, self.dispatcher_url, len(self.instances)),
ports=[5001],
labels={"type": "replica"}
)
start = self.docker.start(container=container.get('Id'))
connect = self.docker.connect_container_to_network(container=container.get('Id'), net_id="swarm_network")
info = self.docker.inspect_container(container=container.get('Id'))
return {"node": info["Node"]["Addr"], "ip": info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]}
def remove_replica(self):
if not self.docker:
return "Error: not connected to swarm"
self.lock.acquire()
containers = self.docker.containers(all=True)
for container in containers:
if "hyrise/hyrise_nvm" in container["Image"]:
info = self.docker.inspect_container(container=container.get('Id'))
ip = info["NetworkSettings"]["Networks"]["swarm_network"]["IPAddress"]
if ip != self.master_url:
print('remove_node')
try:
requests.get("http://" + self.dispatcher_node_url + ":8080/remove_node/%s:" % ip, timeout=1)
except Exception:
print('remove')
self.docker.remove_container(container=container.get('Id'), force=True)
print('removed')
break
self.lock.release()
return
def get_throughput(self):
return {"system": [time.time(), self.throughput]}
def set_workload(self, status):
print("set workload", status)
if int(status) == 1:
self.workload_is_set = True
else:
self.workload_is_set = False
return
class DockerOrchestration(object):
"""
Class to perform operations on docker for various data source manipulations, updating configurations and handle users.
"""
def __init__(self, headers, docker_host, docker_port, payload=None):
"""
Initialize the grafana connection object necessary to perform any configuration or object manipulation
:param api_key:
:param headers:
:param docker_host:
:param docker_port:
:return:
"""
if not docker_host:
raise ValueError(
"Docker hostname value is %s missing. Instance cannot be initialized"
% docker_host)
if not docker_port:
raise ValueError(
"Docker hostport value is %s missing. Instance cannot be initialized"
% docker_port)
if not headers:
raise ValueError(
"Docker connection header value is missing. Instance cannot be initialized"
)
if not isinstance(docker_host, str):
raise ValueError("Docker hostname must be of string type")
if not isinstance(headers, dict):
raise ValueError("Docker deader must be of dict type")
self.headers = headers
self.docker_host = docker_host
self.docker_port = docker_port
self.payload = payload
self.docker_client = Client(base_url='unix:///var/run/docker.sock')
self.client = docker.from_env(assert_hostname=False)
def create_docker_container(self, command=None):
"""
To create the new container on the VM
:return:
"""
container = self.docker_client.create_container(
image='busybox:latest', command='/bin/sleep 30')
print("Container created : %s" % container)
def update_docker_container(self):
"""
To update the existing docker container
:return:
"""
update_container = self.docker_client.update_container()
print(update_container)
def create_docker_volume(self, command=None):
"""
Create and register a named volume
:param command:
:return:
"""
volume = self.docker_client.create_volume(name='foobar',
driver='local',
driver_opts={
'foo': 'bar',
'baz': 'false'
})
print(volume)
def create_docker_network(self, name_of_network, driver, options=None):
"""
To create a network
:param name_of_network:
:param driver:
:param options:
:return:
"""
network = self.docker_client.create_network(name='foobar',
driver='local',
driver_opts={
'foo': 'bar',
'baz': 'false'
})
print(network)
def connect_container_to_network(self,
container_id_or_name=None,
network_id=None):
"""
TO connect a container to network
:return:
"""
network = self.docker_client.connect_container_to_network(
'%s', '%s') % (container_id_or_name, network_id)
print(network)
def disconnect_container_to_network(self,
container_id_or_name=None,
network_id=None):
"""
TO connect a container to network
:return:
"""
network = self.docker_client.disconnect_container_from_network(
'%s', '%s') % (container_id_or_name, network_id)
print(network)
def docker_version(self):
"""
To return the version of current running docker on the server.
:return:
"""
version = self.docker_client.version()
return version
def get_docker_volumes(self):
"""
To get the volumes of currently registered by the docker daemon
:return:
"""
volumes = self.docker_client.volumes()
print(volumes)
def get_docker_version(self, client):
"""
To get the docker version
:return:
"""
version_number = self.client.version()
print(version_number)
def create_container_with_mount_docker_tempfs(self,
name=None,
cmd=None,
payload=None):
"""
To create a container with the specified paths to be mounted with tmpfs.
:param name:
:param cmd:
:param payload:
:return:
"""
create_container = self.docker_client.create_container()
pass
def build_docker(
self,
dockerfile=None,
):
"""
To build the docker from the docker file.
:return:
"""
f = BytesIO(dockerfile.encode('utf-8'))
response = [
line for line in self.docker_client.build(
fileobj=f, rm=True, tag='yourname/volume')
]
print(response)
def get_docker_images(self):
"""
TO list the docker images
:return:
"""
image_list = self.docker_client.images()
print(image_list)
def get_docker_image(self, docker_image_name=None):
"""
To get an image from docker daemon.
:return:
"""
image = self.docker_client.get_image("fedora:latest")
image_tar = open('/tmp/fedora - latest.tar', 'w')
image_tar.write(image.data)
image_tar.close()
def import_docker_image(self):
"""
To import docker image.
:return:
"""
image_list = self.docker_client.import_image()
print(image_list)
def import_docker_image_from_data(self):
"""
To import image from data
:return:
"""
image_list = self.docker_client.import_image_from_data()
print(image_list)
def import_docker_image_from_image(self):
"""
To import image from data
:return:
"""
image_list = self.docker_client.import_image_from_image()
print(image_list)
def import_docker_image_from_stream(self):
"""
To import image from data
:return:
"""
image_list = self.docker_client.import_image_from_stream()
print(image_list)
def import_docker_image_from_url(self):
"""
To import image from data
:return:
"""
image_list = self.docker_client.import_image_from_url()
print(image_list)
def get_docker_networks(self):
"""
Get the list of network for the dockers
:return:
"""
network_list = self.docker_client.networks()
print(network_list)
def push_docker_image_to_repository(
self,
dockerfile=None,
):
"""
To build the docker from the docker file.
:return:
"""
f = BytesIO(dockerfile.encode('utf-8'))
response = [
line for line in self.docker_client.build(
fileobj=f, rm=True, tag='yourname/volume')
]
print(response)
def pull_docker_image_to_repository(
self,
dockerfile=None,
):
"""
To pull the docker image from repository
:param dockerfile:
:return:
"""
for line in self.docker_client.pull('busybox', stream=True):
print(json.dumps(json.loads(line), indent=4))
def search_docker_image(self, docker_image_name=None):
"""
To search and return docker image
:param docker_image_name:
:return:
"""
response = self.docker_client.search('%s') % docker_image_name
print(response[:2])
def start_docker_container(self,
docker_image_name=None,
docker_command=None):
"""
To start the docker after it has created.
:param docker_image_name:
:param docker_command:
:return:
"""
container = self.docker_client.create_container(
image='busybox:latest', command='/bin/sleep 30')
response = self.docker_client.start(container=container.get('Id'))
print(response)
def restart_docker_container(self, container_dict=None, time_out=None):
"""
To re-start the docker after it has created.
:param docker_image_name:
:param docker_command:
:return:
"""
response = self.docker_client.restart(container_dict, time_out)
print(response)
def check_status_for_docker_container(self, container_name=None):
"""
To generate the statistics for the specific container.
:param docker_image_name:
:param docker_command:
:return:
"""
stats_obj = self.docker_client.stats('elasticsearch')
#self.docker_client.stop('elasticsearch')
for stat in stats_obj:
print(stat)
def remove_docker_image(
self,
dockerfile=None,
):
"""
To remove docker image
:param dockerfile:
:return:
"""
response = [
line
for line in self.docker_client.push('yourname/app', stream=True)
]
print(response)