dockerfiles/kvm/start.sh

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#!/bin/bash
set -e
set -o pipefail
# add the correct user perms
gpasswd -a root libvirt
gpasswd -a root kvm
chown root:kvm /dev/kvm
# create the bridge for networking
ip link add name virt0 type bridge
ip link set dev virt0 up
bridge link
ip addr add dev virt0 172.20.0.1/16
iptables -t nat -A POSTROUTING -s 172.20.0.1/16 -j MASQUERADE
# start the virtlogd daemon
exec virtlogd --daemon &
# start the default networking
virsh net-start default || true
# shellcheck disable=SC2068
exec $@