[feature] setup kvm bridge network

devel/kvm/bridge-host.sh

@@ -0,0 +1,60 @@
+#!/bin/sh
+
+# https://wiki.libvirt.org/page/Networking
+
+# ubuntu 16.04
+# /etc/network/interfaces
+#
+# 1. create br0:
+# auto br0
+# iface br0 inet static
+#     bridge_ports enp6s0
+#
+# 2. move enp6s0 ip setting to br0
+
+
+create_bridge_on_ubuntu16_host() {
+echo "
+# set nic to manual
+auto enp6s0
+iface enp6s0 inet manual
+
+# move nic setting to bridge
+auto br0
+iface br0 inet static
+    bridge_ports enp6s0
+    address 10.10.2.3
+    netmask 255.255.255.0
+    gateway 10.10.2.254
+    dns-nameservers 10.10.2.16
+    "
+sudo reboot
+}
+
+disable_netfilter_on_host() {
+cat >> sudo tee -a /etc/sysctl.conf <<EOF
+net.bridge.bridge-nf-call-ip6tables = 0
+net.bridge.bridge-nf-call-iptables = 0
+net.bridge.bridge-nf-call-arptables = 0
+EOF
+sudo sysctl -p /etc/sysctl.conf
+}
+
+optional_perf_enhance() {
+echo "-I FORWARD -m physdev --physdev-is-bridged -j ACCEPT" > /etc/sysconfig/iptables-forward-bridged
+lokkit --custom-rules=ipv4:filter:/etc/sysconfig/iptables-forward-bridged
+service libvirtd reload
+}
+
+
+change_network_on_guest() {
+    sudo virsh edit vmname
+    echo "
+    <interface type='bridge'>
+        <mac address='xx:xx:xx:xx:xx:xx'/>
+        <source bridge='br0'/>
+        <model type='virtio'/>
+        <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </interface>
+    "
+}