Hi Bernd, On Sun, Jun 7, 2020 at 7:38 AM Bernd Bausch <[email protected]> wrote:
> To install Ussuri, Packstack documentation[1] assumes Centos 8 or RHEL 8. > However, it still wants me to disable NetworkManager. When I do that, the > Packstack loses all network configuration when rebooting, since Centos 8 > relies on NetworkManager to manage all aspects of networking. > Feels like u didn't installed/enabled network-scripts when disabled NetworkManager?, i pushed a PR[1] to add step to install network-scripts explicitly on CentOS8. [1] https://github.com/redhat-openstack/website/pull/1388 > > Even after re-enabling NetworkManager and installing the NM OVS plugin, > br-ex remains down. Admittedly, I am quite clueless regarding the > management of OVS, with or without NetworkManager. Here are some of the > things I did (I also followed instructions for connecting Packstack to the > existing network[2]): > > $ *cat /etc/sysconfig/network-scripts/ifcfg-br-ex* > NAME=br-ex > DEVICE=br-ex > DEVICETYPE=ovs > TYPE=OVSBridge > BOOTPROTO=static > IPADDR=172.24.4.1 > PREFIX=24 > ONBOOT=yes > $ *sudo nmcli d set br-ex managed yes* > $ *sudo ip l set br-ex up* > $ *nmcli d* > DEVICE TYPE STATE CONNECTION > ens3 ethernet connected ens3 > br-ex openvswitch disconnected -- > $ *sudo nmcli d connect br-ex* > Error: Failed to add/activate new connection: Device class > NMDeviceOvsInterface had no complete_connection method > NetworkManager does not work with ifcfg-* scripts for ovs-bridges[2], so if you want to manage ovs bridges with NetworkManager need to use nmcli or some other tool. [2] https://bugzilla.redhat.com/show_bug.cgi?id=1589869 > $ *sudo journalctl -u NetworkManager | grep br-ex* > Jun 07 10:51:45 ...: <info> [1591494705.5163] manager: (br-ex): new Open > vSwitch Interface device (/org/freedesktop/NetworkManager/Devices/2) > Jun 07 10:51:45 ...: <info> [1591494705.5578] device (br-ex): state > change: unmanaged -> unavailable (reason 'managed', sys-iface-state: > 'external') > Jun 07 10:51:45 ...: <info> [1591494705.5598] device (br-ex): carrier: > link connected > Jun 07 10:51:45 ...: <info> [1591494705.9112] manager: (br-ex): new Open > vSwitch Port device (/org/freedesktop/NetworkManager/Devices/6) > Jun 07 10:51:45 ...: <info> [1591494705.9686] manager: (br-ex): new Open > vSwitch Bridge device (/org/freedesktop/NetworkManager/Devices/11) > Jun 07 10:51:46 ...: <info> [1591494706.0306] device (br-ex): state > change: unavailable -> disconnected (reason 'none', sys-iface-state: > 'managed') > > Any guidance? > Either install/enable network-scripts or use nmcli to manage ovs bridges with NetworkManager. I tried following for external network and it worked for me. # Install and Enable ovs plugin for NetworkManager sudo dnf install -y NetworkManager-ovs sudo systemctl restart NetworkManager # Discover network configs for ens3 export IP=`ip r get 1.1.1.1 | awk '/dev/{print $7}' | tr -d '[[:space:]]'` export NETMASK=`ip route show | grep $IP |cut -d" " -f1|cut -d"/" -f2 |tr -d '[[:space:]]'` # We need the gateway as we'll be reconfiguring the ens3 interface export GATEWAY=`ip r get 1.1.1.1 | awk '/dev/{print $3}' | tr -d '[[:space:]]'` export MAC=`ip a show ens3|grep link/ether|awk '{print $2}' | tr -d '[[:space:]]'` # Delete ovs bridge created outside of NetworkManager sudo ovs-vsctl del-br br-ex sudo nmcli conn add type ovs-bridge conn.interface br-ex sudo nmcli conn add type ovs-port conn.interface port0 master br-ex sudo nmcli conn add type ovs-interface slave-type ovs-port conn.interface br-ex master port0 ipv4.method manual ipv4.address $IP/$NETMASK ipv4.gateway $GATEWAY ipv4.dns 8.8.8.8 # This didn't persist after reboot, need to find why and get it fixed some way sudo ovs-vsctl set bridge br-ex other-config:hwaddr=$MAC sudo nmcli conn add type ovs-port conn.interface port1 master br-ex sudo nmcli conn add type ethernet conn.interface ens3 master port1 sudo nmcli conn up ovs-slave-ens3 # to persist mac on ovs bridge with reboots sudo tee /etc/NetworkManager/dispatcher.d/25-ovs-br-ex <<EOF #!/bin/sh # This is a NetworkManager dispatcher / networkd-dispatcher script for # ovs to set mac address for slave # For NetworkManager consider only up/down events [ 0 -ge 2 ] && [ "" != "up" ] && exit 0 if [ "\$DEVICE_IFACE" == "br-ex" ]; then export MAC=\$(ip a show ens3|grep link/ether|awk '{print \$2}' | tr -d '[[:space:]]') ovs-vsctl set bridge br-ex other-config:hwaddr=\$MAC fi exit 0 EOF sudo chmod +x /etc/NetworkManager/dispatcher.d/25-ovs-br-ex Ensure you have console access to the packstack vm as in case of misconfiguration of network ssh connection will be lost. > [1] https://www.rdoproject.org/install/packstack/ > [2] > https://www.rdoproject.org/networking/neutron-with-existing-external-network > > > _______________________________________________ > users mailing list > [email protected] > http://lists.rdoproject.org/mailman/listinfo/users > > To unsubscribe: [email protected] > Thanks and Regards Yatin Karel
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