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Code Issues Releases Wiki Activity

lxc_guests: Monitor randomly generated virtual ethernet devices

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Sebastian L 2020-11-18 15:28:24 +01:00 • committed by Lars Kruse
parent b5f957268f
commit 137913e39d
1 changed files with 2 additions and 21 deletions
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23
plugins/lxc/lxc_guests
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@ -38,13 +38,6 @@ This plugin has been tested with lxc 3 and
lx2 (on Debian buster and Debian jessie, lx2 (on Debian buster and Debian jessie,
respectively). respectively).
For the network graphs to work, you need
to have in every container's config file
a line defining the virtual network interface
path (else lxc will use a random name at
each container's start); see the lxc_netdev()
function below.
If using lxc 2, make sure you do not have cruft If using lxc 2, make sure you do not have cruft
in your container config files, you can test in your container config files, you can test
it with: it with:
@ -116,18 +109,6 @@ get_lxc_cgroup_info() {
} }
lxc_netdev() {
local guest_name="$1"
if [ -f "$lxcpath/$guest_name/config" ]; then
# lxc 3 vs < 3
(grep -E '^lxc.net.0.veth.pair' "$lxcpath/$guest_name/config" 2>/dev/null \
|| grep -E '^lxc.network.veth.pair' "$lxcpath/$guest_name/config"
) | awk '{print $NF;}'
fi
}
# find proper sysfs and count it # find proper sysfs and count it
# Debian 6.0: /sys/fs/cgroup/<container>/tasks # Debian 6.0: /sys/fs/cgroup/<container>/tasks
# Ubuntu 12.04 with fstab: /sys/fs/cgroup/lxc/<container>/tasks # Ubuntu 12.04 with fstab: /sys/fs/cgroup/lxc/<container>/tasks
@ -259,7 +240,7 @@ EOF
for guest_name in $active_guests for guest_name in $active_guests
do do
device=$(lxc_netdev "$guest_name") device=$(lxc-info -n "$guest_name" | grep Link | sed 's/Link:\ \+//g')
if [ -z "$device" ]; then if [ -z "$device" ]; then
continue continue
fi fi
@ -362,7 +343,7 @@ do_fetch() {
echo "multigraph lxc_net" echo "multigraph lxc_net"
for guest_name in $active_guests for guest_name in $active_guests
do do
device=$(lxc_netdev "$guest_name") device=$(lxc-info -n "$guest_name" | grep Link | sed 's/Link:\ \+//g')
if [ -z "$device" ]; then if [ -z "$device" ]; then
value_up="U" value_up="U"
value_down="U" value_down="U"