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integrated creation into the standard session.add_node call, currently requires an extra check due to the need for being able to specify an image

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This commit is contained in:
Blake Harnden 2019-06-28 15:41:55 -07:00
parent 0e7464d419
commit 2397cd58ee
6 changed files with 49 additions and 34 deletions
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4
daemon/core/emulator/emudata.py
View file

@ -79,12 +79,13 @@ class NodeOptions(object):
Options for creating and updating nodes within core.
"""
def __init__(self, name=None, model="PC"):
def __init__(self, name=None, model="PC", image=None):
"""
Create a NodeOptions object.
:param str name: name of node, defaults to node class name postfix with its id
:param str model: defines services for default and physical nodes, defaults to "router"
:param str image: image to use for docker nodes
"""
self.name = name
self.model = model
@ -99,6 +100,7 @@ class NodeOptions(object):
self.alt = None
self.emulation_id = None
self.emulation_server = None
self.image = image
def set_position(self, x, y):
"""

5
daemon/core/emulator/session.py
View file

@ -500,6 +500,9 @@ class Session(object):
# create node
logging.info("creating node(%s) id(%s) name(%s) start(%s)", node_class.__name__, _id, name, start)
if _type == NodeTypes.DOCKER:
node = self.create_node(cls=node_class, _id=_id, name=name, start=start, image=node_options.image)
else:
node = self.create_node(cls=node_class, _id=_id, name=name, start=start)
# set node attributes
@ -511,7 +514,7 @@ class Session(object):
self.set_node_position(node, node_options)
# add services to default and physical nodes only
if _type in [NodeTypes.DEFAULT, NodeTypes.PHYSICAL]:
if _type in [NodeTypes.DEFAULT, NodeTypes.PHYSICAL, NodeTypes.DOCKER]:
node.type = node_options.model
logging.debug("set node type: %s", node.type)
self.services.add_services(node, node.type, node_options.services)

15
daemon/core/nodes/docker.py
View file

@ -8,15 +8,16 @@ from core.nodes.base import CoreNode
class DockerClient(object):
def __init__(self, name):
def __init__(self, name, image):
self.name = name
self.image = image
self.pid = None
self._addr = {}
def create_container(self, image):
def create_container(self):
utils.check_cmd("docker run -td --net=none --hostname {name} --name {name} {image} /bin/bash".format(
name=self.name,
image=image
image=self.image
))
self.pid = self.get_pid()
return self.pid
@ -119,7 +120,7 @@ class DockerNode(CoreNode):
apitype = NodeTypes.DOCKER.value
valid_address_types = {"inet", "inet6", "inet6link"}
def __init__(self, session, _id=None, name=None, nodedir=None, bootsh="boot.sh", start=True):
def __init__(self, session, _id=None, name=None, nodedir=None, bootsh="boot.sh", start=True, image=None):
"""
Create a CoreNode instance.
@ -133,7 +134,9 @@ class DockerNode(CoreNode):
super(CoreNode, self).__init__(session, _id, name, start=start)
self.nodedir = nodedir
self.ctrlchnlname = os.path.abspath(os.path.join(self.session.session_dir, self.name))
self.client = DockerClient(self.name)
if image is None:
image = "ubuntu"
self.client = DockerClient(self.name, image)
self.pid = None
self.up = False
self.lock = threading.RLock()
@ -164,7 +167,7 @@ class DockerNode(CoreNode):
if self.up:
raise ValueError("starting a node that is already up")
self.makenodedir()
self.pid = self.client.create_container("ubuntu:ifconfig")
self.pid = self.client.create_container()
self.up = True
def shutdown(self):

14
daemon/examples/docker/docker2core.py
View file

@ -1,7 +1,7 @@
import logging
from core.emulator.coreemu import CoreEmu
from core.emulator.emudata import IpPrefixes
from core.emulator.emudata import IpPrefixes, NodeOptions
from core.emulator.enumerations import NodeTypes, EventTypes
@ -12,14 +12,14 @@ if __name__ == "__main__":
session.set_state(EventTypes.CONFIGURATION_STATE)
try:
# create nodes one
prefixes = IpPrefixes(ip4_prefix="10.83.0.0/16")
node_one = session.add_node(_type=NodeTypes.DOCKER)
session.services.add_services(node_one, node_one.type, ["SSH"])
logging.info("docker node(%s): %s", node_one.name, node_one.services)
options = NodeOptions(image="ubuntu:ifconfig")
# create node one
node_one = session.add_node(_type=NodeTypes.DOCKER, node_options=options)
interface_one = prefixes.create_interface(node_one)
# create nodes two
# create node two
node_two = session.add_node()
interface_two = prefixes.create_interface(node_two)
@ -27,8 +27,6 @@ if __name__ == "__main__":
session.add_link(node_one.id, node_two.id, interface_one, interface_two)
# instantiate
logging.info("INSTANTIATE")
logging.info("docker node(%s): %s", node_one.name, node_one.services)
session.instantiate()
finally:
input("continue to shutdown")

17
daemon/examples/docker/docker2docker.py
View file

@ -1,7 +1,7 @@
import logging
from core.emulator.coreemu import CoreEmu
from core.emulator.emudata import IpPrefixes
from core.emulator.emudata import IpPrefixes, NodeOptions
from core.emulator.enumerations import NodeTypes, EventTypes
@ -15,17 +15,20 @@ if __name__ == "__main__":
# create nodes and interfaces
try:
prefixes = IpPrefixes(ip4_prefix="10.83.0.0/16")
node_one = session.add_node(_type=NodeTypes.DOCKER)
node_two = session.add_node(_type=NodeTypes.DOCKER)
options = NodeOptions(image="ubuntu:ifconfig")
# create node one
node_one = session.add_node(_type=NodeTypes.DOCKER, node_options=options)
interface_one = prefixes.create_interface(node_one)
# create node two
node_two = session.add_node(_type=NodeTypes.DOCKER, node_options=options)
interface_two = prefixes.create_interface(node_two)
# add link
input("press key to continue")
session.add_link(node_one.id, node_two.id, interface_one, interface_two)
print(node_one.cmd_output("ifconfig"))
print(node_two.cmd_output("ifconfig"))
input("press key to continue")
# instantiate
session.instantiate()
finally:
input("continue to shutdown")

26
daemon/examples/docker/switch.py
View file

@ -1,7 +1,7 @@
import logging
from core.emulator.coreemu import CoreEmu
from core.emulator.emudata import IpPrefixes
from core.emulator.emudata import IpPrefixes, NodeOptions
from core.emulator.enumerations import NodeTypes, EventTypes
@ -12,25 +12,31 @@ if __name__ == "__main__":
session = coreemu.create_session()
session.set_state(EventTypes.CONFIGURATION_STATE)
# create nodes and interfaces
try:
prefixes = IpPrefixes(ip4_prefix="10.83.0.0/16")
options = NodeOptions(image="ubuntu:ifconfig")
# create switch
switch = session.add_node(_type=NodeTypes.SWITCH)
node_one = session.add_node(_type=NodeTypes.DOCKER)
node_two = session.add_node(_type=NodeTypes.DOCKER)
node_three = session.add_node()
# node one
node_one = session.add_node(_type=NodeTypes.DOCKER, node_options=options)
interface_one = prefixes.create_interface(node_one)
# node two
node_two = session.add_node(_type=NodeTypes.DOCKER, node_options=options)
interface_two = prefixes.create_interface(node_two)
# node three
node_three = session.add_node()
interface_three = prefixes.create_interface(node_three)
# add link
input("press key to continue")
# add links
session.add_link(node_one.id, switch.id, interface_one)
session.add_link(node_two.id, switch.id, interface_two)
session.add_link(node_three.id, switch.id, interface_three)
print(node_one.cmd_output("ifconfig"))
print(node_two.cmd_output("ifconfig"))
input("press key to continue")
# instantiate
session.instantiate()
finally:
input("continue to shutdown")