| #!/bin/bash -e | |
| netns="$1" | |
| ifname="$2" # optional | |
| if [ -f "/var/run/netns/${netns}" ]; then | |
| echo "netns $netns already exists" | |
| else | |
| echo "Creating netns $netns" | |
| ip netns add "$netns" | |
| fi | |
| if [ "x$ifname" = "x" ]; then | |
| exit 0 | |
| fi | |
| if [ -d "/sys/class/net/${ifname}" ]; then | |
| echo "Moving iface $ifname to netns $netns" | |
| ip link set $ifname netns $netns | |
| else | |
| ip netns exec $netns ls "/sys/class/net/${ifname}" >/dev/null && echo "iface $ifname already in netns $netns" | |
| fi |