[Bug 1197754] Re: "lxc-start-ephemeral -d" is racy
Martin Pitt
martin.pitt at ubuntu.com
Tue Nov 19 11:37:00 UTC 2013
** Changed in: autopkgtest (Ubuntu)
Importance: Medium => Low
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https://bugs.launchpad.net/bugs/1197754
Title:
"lxc-start-ephemeral -d" is racy
Status in “autopkgtest” package in Ubuntu:
Triaged
Status in “lxc” package in Ubuntu:
Triaged
Bug description:
A script cannot call lxc-start-ephemeral and get a named container in
a reliable, race-free way.
Having the caller specify a name directly is racy, since the name
could have been taken in between checking that it doesn't exist
already and calling lxc-start-ephemeral.
Allowing lxc-start-ephemeral allows it to take care of the mkdir (and
retries) to generate an LXC container name in a race free manner, but
this needs -d to return the name in a machine-readable way, so that we
can create ephemeral LXC containers from scripts.
Please add a machine-readable mechanism to "lxc-start-ephemeral -d"
and then we can modify adt-virt-lxc to use it.
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