diff options
Diffstat (limited to 'cloudinit/distros/networking.py')
| -rw-r--r-- | cloudinit/distros/networking.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/cloudinit/distros/networking.py b/cloudinit/distros/networking.py index e407fa29..c291196a 100644 --- a/cloudinit/distros/networking.py +++ b/cloudinit/distros/networking.py @@ -2,6 +2,7 @@ import abc import logging import os +from cloudinit import subp from cloudinit import net, util @@ -175,6 +176,10 @@ class Networking(metaclass=abc.ABCMeta): if strict: raise RuntimeError(msg) + @abc.abstractmethod + def try_set_link_up(self, devname: DeviceName) -> bool: + """Try setting the link to up explicitly and return if it is up.""" + class BSDNetworking(Networking): """Implementation of networking functionality shared across BSDs.""" @@ -185,6 +190,9 @@ class BSDNetworking(Networking): def settle(self, *, exists=None) -> None: """BSD has no equivalent to `udevadm settle`; noop.""" + def try_set_link_up(self, devname: DeviceName) -> bool: + raise NotImplementedError() + class LinuxNetworking(Networking): """Implementation of networking functionality common to Linux distros.""" @@ -214,3 +222,10 @@ class LinuxNetworking(Networking): if exists is not None: exists = net.sys_dev_path(exists) util.udevadm_settle(exists=exists) + + def try_set_link_up(self, devname: DeviceName) -> bool: + """Try setting the link to up explicitly and return if it is up. + Not guaranteed to bring the interface up. The caller is expected to + add wait times before retrying.""" + subp.subp(['ip', 'link', 'set', devname, 'up']) + return self.is_up(devname) |