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[libvirt] [PATCH] send 'container=libvirt' in env to container init

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 ubuntu com>
Signed-off-by: Serge Hallyn <serge hallyn 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);

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