Quoting Robie Basak (1197...@bugs.launchpad.net): > Public bug reported: > > 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.
Practically speaking, have you actually created the container name with mktemp (i.e. mktemp -u -t lxc-XXXXXX | sed 's@/tmp/@@') and gotten name clashes? > 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. That does sound like a good idea - we could add a '--terse' suboption to -d to only print '$name $ip' -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1197754 Title: "lxc-start-ephemeral -d" is racy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/autopkgtest/+bug/1197754/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
