This will become a full fledged blog post. At this time it is just the happy-path description to get it running without much explanation.
networking: be sure to load the driver for the USB 1GB nic
sudo add-apt-repository ppa:qji/ax88179 sudo apt-get update sudo apt-get install ax88179 modprobe ax88179_178a
install bridge utils
apt-get install bridge-utils
add networking information to /etc/network/interfaces
auto eth1
iface eth1 inet manual
up ifconfig eth1 promisc up
down ifconfig eth1 promisc down
auto br0
iface br0 inet dhcp
bridge_ports eth1
bridge_stp off
bridge_fd 0
bridge_maxwait 0
eth0 and eth1 is configured to use promiscuous mode! This is extremely important. It is configured in the same way on the compute nodes. Promiscuous mode allows the interface to receive packets not targeted to this interface’s MAC address. Packets for VMs will be traveling through eth0/1, but their target MAC will be that of the VMs, not of eth0/1, so to let them in, we must use promiscuous mode.
root@testlab-3:~# ifconfig eth0 promisc up root@testlab-3:~# ifconfig eth1 promisc up root@testlab-3:~# ip a|grep -i pro 2: eth0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 3: eth1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP qlen 1000
sudo apt-get install python-vm-builder
sudo apt-get install kvm libvirt-bin sudo adduser ehaselwanter libvirtd The user `ehaselwanter' is already a member of `libvirtd'.
bug in vmbuilder/grub
~# grep ext /usr/share/pyshared/VMBuilder/plugins/ubuntu/karmic.py
preferred_filesystem = 'ext3'
mkdir /virts/ /usr/bin/vmbuilder kvm ubuntu -v --suite=precise --libvirt=qemu:///system --flavour=server --arch=amd64 --cpus=2 --mem=12288 --swapsize=2048 --rootsize=50480 --ip=10.0.0.222 --gw 10.0.0.1 --hostname=devstack --user=stack --name=stack --pass=stack --addpkg=git --addpkg=screen --addpkg=vim --addpkg=strace --addpkg=lsof --addpkg=nmap --addpkg=git --addpkg=acpid --addpkg=tcpdump --addpkg=python-pip --addpkg=wget --addpkg=htop --mirror=http://at.archive.ubuntu.com/ubuntu --components='main,universe' --addpkg=openssh-server --dns=8.8.8.8 --dest=/virts/devstack --bridge br0
Start and connect:
virsh start devstack ssh stack@10.0.0.222
cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet manual
up ip l s $IFACE up
up ifconfig eth1 promisc up
down ip l s $IFACE down
down ifconfig eth1 promisc down
#auto br-ex => moved to /etc/rc.local see http;//developer.rackspace.com/blog/neutron-networking-simple-flat-network.html
iface br-ex inet static
address 10.0.0.222
netmask 255.255.255.0
gateway 10.0.0.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 8.8.8.8
dns-search defaultdomain
stack@devstack:~$ cat /etc/rc.local ifup br-ex exit 0
/ethc/init.d/network restart ifconfig eth0 promisc up ifconfig br-ex promisc up
git clone https://github.com/openstack-dev/devstack.git cd devstack git checkout stable/havana
add config for bridged networking
cat localrc HOST_IP=10.0.0.222 DATABASE_PASSWORD=password RABBIT_PASSWORD=password SERVICE_TOKEN=password SERVICE_PASSWORD=password ADMIN_PASSWORD=password FLOATING_RANGE=10.0.0.0/24 FIXED_RANGE=172.24.4.0/24 FLAT_INTERFACE=eth0 LOGFILE=/home/stack/stack.sh.log Q_FLOATING_ALLOCATION_POOL=start=10.0.0.128,end=10.0.0.159 PUBLIC_NETWORK_GATEWAY=10.0.0.1 disable_service n-net enable_service q-svc enable_service q-agt enable_service q-dhcp enable_service q-l3 enable_service q-meta enable_service neutron
start a vm, associate a floating-ip, enjoy
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