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Fix hot link issues in Docker

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Fix #817
This commit is contained in:
Julien Duponchelle
2016-12-14 16:53:20 +01:00
parent d0f65aebff
commit 46b6e7c5ee
2 changed files with 42 additions and 84 deletions
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85
gns3server/compute/docker/docker_vm.py
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@ -348,7 +348,7 @@ class DockerVM(BaseNode):
yield from self._clean_servers()
yield from self.manager.query("POST", "containers/{}/start".format(self._cid))
namespace = yield from self._get_namespace()
self._namespace = yield from self._get_namespace()
yield from self._start_ubridge()
@ -356,7 +356,7 @@ class DockerVM(BaseNode):
nio = self._ethernet_adapters[adapter_number].get_nio(0)
with (yield from self.manager.ubridge_lock):
try:
yield from self._add_ubridge_connection(nio, adapter_number, namespace)
yield from self._add_ubridge_connection(nio, adapter_number)
except UbridgeNamespaceError:
yield from self.stop()
@ -626,13 +626,12 @@ class DockerVM(BaseNode):
return
@asyncio.coroutine
def _add_ubridge_connection(self, nio, adapter_number, namespace):
def _add_ubridge_connection(self, nio, adapter_number):
"""
Creates a connection in uBridge.
:param nio: NIO instance or None if it's a dummy interface (if an interface is missing in ubridge you can't see it via ifconfig in the container)
:param adapter_number: adapter number
:param namespace: Container namespace (pid)
"""
try:
@ -652,45 +651,34 @@ class DockerVM(BaseNode):
yield from self._ubridge_send('bridge create bridge{}'.format(adapter_number))
yield from self._ubridge_send('bridge add_nio_tap bridge{adapter_number} {hostif}'.format(adapter_number=adapter_number,
hostif=adapter.host_ifc))
log.debug("Move container %s adapter %s to namespace %s", self.name, adapter.host_ifc, namespace)
log.debug("Move container %s adapter %s to namespace %s", self.name, adapter.host_ifc, self._namespace)
try:
yield from self._ubridge_send('docker move_to_ns {ifc} {ns} eth{adapter}'.format(ifc=adapter.host_ifc,
ns=namespace,
ns=self._namespace,
adapter=adapter_number))
except UbridgeError as e:
raise UbridgeNamespaceError(e)
if isinstance(nio, NIOUDP):
yield from self._ubridge_send('bridge add_nio_udp bridge{adapter} {lport} {rhost} {rport}'.format(adapter=adapter_number,
lport=nio.lport,
rhost=nio.rhost,
rport=nio.rport))
if nio and nio.capturing:
yield from self._ubridge_send('bridge start_capture bridge{adapter} "{pcap_file}"'.format(adapter=adapter_number,
pcap_file=nio.pcap_output_file))
if nio:
yield from self._ubridge_send('bridge start bridge{adapter}'.format(adapter=adapter_number))
def _delete_ubridge_connection(self, adapter_number):
"""Deletes a connection in uBridge.
:param adapter_number: adapter number
"""
if not self.ubridge:
return
try:
yield from self._ubridge_send("bridge delete bridge{name}".format(name=adapter_number))
except UbridgeError as e:
log.debug(str(e))
yield from self._connect_nio(adapter_number, nio)
@asyncio.coroutine
def _get_namespace(self):
result = yield from self.manager.query("GET", "containers/{}/json".format(self._cid))
return int(result['State']['Pid'])
@asyncio.coroutine
def _connect_nio(self, adapter_number, nio):
yield from self._ubridge_send('bridge add_nio_udp bridge{adapter} {lport} {rhost} {rport}'.format(adapter=adapter_number,
lport=nio.lport,
rhost=nio.rhost,
rport=nio.rport))
if nio.capturing:
yield from self._ubridge_send('bridge start_capture bridge{adapter} "{pcap_file}"'.format(adapter=adapter_number,
pcap_file=nio.pcap_output_file))
yield from self._ubridge_send('bridge start bridge{adapter}'.format(adapter=adapter_number))
@asyncio.coroutine
def adapter_add_nio_binding(self, adapter_number, nio):
"""Adds an adapter NIO binding.
@ -705,28 +693,7 @@ class DockerVM(BaseNode):
adapter_number=adapter_number))
if self.status == "started" and self.ubridge:
# the container is running, let's add the UDP tunnel to connect to another node
yield from self._ubridge_send('bridge create bridge{}'.format(adapter_number))
yield from self._ubridge_send('bridge add_nio_linux_raw bridge{adapter} {ifc}'.format(ifc=adapter.host_ifc, adapter=adapter_number))
yield from self._ubridge_send('bridge add_nio_udp bridge{adapter} {lport} {rhost} {rport}'.format(adapter=adapter_number,
lport=nio.lport,
rhost=nio.rhost,
rport=nio.rport))
yield from self._ubridge_send('bridge start bridge{adapter}'.format(adapter=adapter_number))
if self.status == "started" and self.ubridge:
# the container is running, let's add the UDP tunnel to connect to another node
yield from self._ubridge_hypervisor.send('bridge create bridge{}'.format(adapter_number))
yield from self._ubridge_hypervisor.send('bridge add_nio_linux_raw bridge{adapter} {ifc}'.format(ifc=adapter.host_ifc, adapter=adapter_number))
yield from self._ubridge_hypervisor.send('bridge add_nio_udp bridge{adapter} {lport} {rhost} {rport}'.format(adapter=adapter_number,
lport=nio.lport,
rhost=nio.rhost,
rport=nio.rport))
yield from self._ubridge_hypervisor.send('bridge start bridge{adapter}'.format(adapter=adapter_number))
yield from self._connect_nio(adapter_number, nio)
adapter.add_nio(0, nio)
log.info("Docker container '{name}' [{id}]: {nio} added to adapter {adapter_number}".format(name=self.name,
@ -749,13 +716,15 @@ class DockerVM(BaseNode):
raise DockerError("Adapter {adapter_number} doesn't exist on Docker VM '{name}'".format(name=self.name,
adapter_number=adapter_number))
if self.ubridge:
nio = adapter.get_nio(0)
yield from self._ubridge_send("bridge stop bridge{name}".format(name=adapter_number))
yield from self._ubridge_send('bridge remove_nio_udp bridge{adapter} {lport} {rhost} {rport}'.format(adapter=adapter_number,
lport=nio.lport,
rhost=nio.rhost,
rport=nio.rport))
adapter.remove_nio(0)
if self.status == "started" and self.ubridge:
# the container is running, just delete the UDP tunnel so we can reconnect it later if needed
yield from self._ubridge_send("bridge delete bridge{name}".format(name=adapter_number))
else:
# the container is not running, let's completely delete the connection
yield from self._delete_ubridge_connection(adapter_number)
log.info("Docker VM '{name}' [{id}]: {nio} removed from adapter {adapter_number}".format(name=self.name,
id=self.id,