Quoting Daniel P. Berrange (berrange(a)redhat.com):
On Mon, May 16, 2011 at 09:47:02AM -0500, Serge Hallyn wrote:
> This allows upstart scripts to detect that they are in a container
> and modify their behavior accordingly.
>
> In this way, the same ubuntu maverick or natty image with the 'lxcguest'
> package installed can be booted on bare metal, in kvm, or as a
> libvirt or liblxc container.
>
> Signed-off-by: Chuck Short <zulcss(a)ubuntu.com>
> Signed-off-by: Serge Hallyn <serge.hallyn(a)ubuntu.com>
> ---
> src/lxc/lxc_container.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
> index 9ae93b5..a70aeeb 100644
> --- a/src/lxc/lxc_container.c
> +++ b/src/lxc/lxc_container.c
> @@ -112,6 +112,7 @@ static virCommandPtr lxcContainerBuildInitCmd(virDomainDefPtr
vmDef)
>
> virCommandAddEnvString(cmd, "PATH=/bin:/sbin");
> virCommandAddEnvString(cmd, "TERM=linux");
> + virCommandAddEnvString(cmd, "container=libvirt");
> virCommandAddEnvPair(cmd, "LIBVIRT_LXC_UUID", uuidstr);
> virCommandAddEnvPair(cmd, "LIBVIRT_LXC_NAME", vmDef->name);
I've no objection to this, but IMHO the value should be
container=libvirt-lxc
So long as it is guaranteed that henceforth LIBVIRT_LXC_UUID=x will always
be passed to init, that suffices. But I worry about it changing in 6 or
12 months to a slightly different name, or not always being passed. Do
you think there is any chance of that happening?
thanks,
-serge