Re: [libvirt] [PATCH v2] Add 'lxc-enter-namespace' command to virsh

From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; Add a 'lxc-enter-namespace' command which accepts a domain name and then a command + args to run, attached to the container eg virsh -c lxc:/// lxc-enter-namespace demo -- /bin/ps -auxf Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- tools/Makefile.am | 1 + tools/virsh-domain.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/virsh.pod | 8 +++++ 3 files changed, 103 insertions(+)

/* + * "lxc-enter-namespace" namespace + */ +static const vshCmdInfo info_lxc_enter_namespace[] = { + {"help", N_("LXC Guest Enter Namespace")}, + {"desc", N_("Run an arbitrary lxc guest enter namespace; use at your own risk")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_lxc_enter_namespace[] = { + {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")}, + {NULL, 0, 0, NULL}

+++ b/tools/virsh.pod @@ -3056,6 +3056,14 @@ When I<--aysnc> is given, the command waits for timeout whether success or failed. And when I<--block> is given, the command waits forever with blocking timeout. +=item B<lxc-enter-namespace> I<domain> -- /path/to/binary [arg1, [arg2, ...]] + +Enter the namespace of I<domain> and execute the command C</path/to/binary> +passing the requested args. The binary path is relative to the container +root filesystem, not the host root filesystem. The binary will inherit the +environment variables / console visible to virsh. This command only works +when connected to the LXC hypervisor driver. +