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Allows hot-linking for Docker containers. Ref #267.

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This commit is contained in:
grossmj 2016-06-24 17:26:40 -06:00
parent ce3276d374
commit d28fad223f
1 changed files with 21 additions and 7 deletions
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28
gns3server/compute/docker/docker_vm.py
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@ -292,7 +292,7 @@ class DockerVM(BaseNode):
params["Cmd"] = [] params["Cmd"] = []
if len(params["Cmd"]) == 0 and len(params["Entrypoint"]) == 0: if len(params["Cmd"]) == 0 and len(params["Entrypoint"]) == 0:
params["Cmd"] = ["/bin/sh"] params["Cmd"] = ["/bin/sh"]
params["Entrypoint"].insert(0, "/gns3/init.sh") params["Entrypoint"].insert(0, "/gns3/init.sh") # FIXME /gns3/init.sh is not found?
# Give the information to the container on how many interface should be inside # Give the information to the container on how many interface should be inside
params["Env"].append("GNS3_MAX_ETHERNET=eth{}".format(self.adapters - 1)) params["Env"].append("GNS3_MAX_ETHERNET=eth{}".format(self.adapters - 1))
@ -663,11 +663,8 @@ class DockerVM(BaseNode):
:param adapter_number: adapter number :param adapter_number: adapter number
""" """
if not self._ubridge_hypervisor or not self._ubridge_hypervisor.is_running():
return
adapter = self._ethernet_adapters[adapter_number] adapter = self._ethernet_adapters[adapter_number]
try: try:
yield from self._ubridge_send("bridge delete bridge{name}".format(name=adapter_number)) yield from self._ubridge_send("bridge delete bridge{name}".format(name=adapter_number))
except UbridgeError as e: except UbridgeError as e:
@ -695,6 +692,18 @@ class DockerVM(BaseNode):
raise DockerError("Adapter {adapter_number} doesn't exist on Docker container '{name}'".format(name=self.name, raise DockerError("Adapter {adapter_number} doesn't exist on Docker container '{name}'".format(name=self.name,
adapter_number=adapter_number)) adapter_number=adapter_number))
if self.status == "started" and self.ubridge and self.ubridge.is_running():
# 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))
adapter.add_nio(0, nio) adapter.add_nio(0, nio)
log.info("Docker container '{name}' [{id}]: {nio} added to adapter {adapter_number}".format(name=self.name, log.info("Docker container '{name}' [{id}]: {nio} added to adapter {adapter_number}".format(name=self.name,
id=self._id, id=self._id,
@ -717,7 +726,12 @@ class DockerVM(BaseNode):
adapter_number=adapter_number)) adapter_number=adapter_number))
adapter.remove_nio(0) adapter.remove_nio(0)
yield from self._delete_ubridge_connection(adapter_number) if self.status == "started" and self.ubridge and self.ubridge.is_running():
# 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, log.info("Docker VM '{name}' [{id}]: {nio} removed from adapter {adapter_number}".format(name=self.name,
id=self.id, id=self.id,
@ -829,7 +843,7 @@ class DockerVM(BaseNode):
nio.startPacketCapture(output_file) nio.startPacketCapture(output_file)
if self.status == "started": if self.status == "started" and self.ubridge and self.ubridge.is_running():
yield from self._start_ubridge_capture(adapter_number, output_file) yield from self._start_ubridge_capture(adapter_number, output_file)
log.info("Docker VM '{name}' [{id}]: starting packet capture on adapter {adapter_number}".format(name=self.name, log.info("Docker VM '{name}' [{id}]: starting packet capture on adapter {adapter_number}".format(name=self.name,
@ -856,7 +870,7 @@ class DockerVM(BaseNode):
nio.stopPacketCapture() nio.stopPacketCapture()
if self.status == "started": if self.status == "started" and self.ubridge and self.ubridge.is_running():
yield from self._stop_ubridge_capture(adapter_number) yield from self._stop_ubridge_capture(adapter_number)
log.info("Docker VM '{name}' [{id}]: stopping packet capture on adapter {adapter_number}".format(name=self.name, log.info("Docker VM '{name}' [{id}]: stopping packet capture on adapter {adapter_number}".format(name=self.name,