[lxc-users] [lxc-devel] Suggestions regarding (ultimately) LXC 2.1.0 lxc-update-config

Christian Brauner christian.brauner at mailbox.org
Mon Oct 9 08:16:34 UTC 2017


On Wed, Oct 04, 2017 at 03:35:08PM -0400, Adrian Pepper wrote:
> Does mentioning lxc.pivotdir really need to be a fatal error?  Currently
> it seems fatal to the degree that "lxc-ls -f" does not show the
> container at all, not RUNNING and not STOPPED.

As I said in my previous mail, we've merged a branch of mine that makes this
non-fatal and ignores and lxc.pivotdir entries.
https://github.com/lxc/lxc/commit/63bab717a81bcd5280442c902df8ac664de71244

> 
> Or, at least, could the lxc-update-config command be modified to
> effectively delete mentions of lxc.pivotdir?

That's also part of said branch.
https://github.com/lxc/lxc/commit/727fd34960b2635015e5e9b5780e0d67cbb08992

So you should be fine with the next point release. :)

Christian

> (Comment out or delete it; I see lxc.rootfs.backend gets deleted by
> lxc-update-config; it might be nice if that also was done as commenting
> out, instead).
> It seems that "lxc-update-config" currently just leaves lxc.pivotdir alone.
> (In the following version).
> 
> -rwxr-xr-x 1 root root 3791 Sep 21 14:35 /usr/bin/lxc-update-config
> (Ubuntu 16.04)
> 
> 
> The messages indicating the need to update the config should be
> improved to name the config file in question, and mention the
> lxc-update-config command.
> 
> Perhaps...
> 
>   < The configuration file contains legacy configuration keys.
>   < Please update your configuration file!
>   ---
>   > /var/lib/lxc/u1204-postfix-1/config contains legacy configuration keys.
>   > "lxc-update-config" can be used to update most configuration files.
> 
> 
> Oh, and "lxc-update-config" does not accept "--version".
> 
> 
> Adrian Pepper
> arpepper at uwaterloo.ca
> 
> 
> Actual diagnostics associated with lxc.pivotdir...
> 
> lxc-start: u1204-postfix-1: confile.c: parse_line: 1982 Unknown configuration key "lxc.pivotdir"
> lxc-start: u1204-postfix-1: parse.c: lxc_file_for_each_line: 58 Failed to parse config: lxc.pivotdir = lxc_putold
> 
> lxc-start: u1204-postfix-1: tools/lxc_start.c: main: 286 Failed to create lxc_container
> 
> 
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