Re: [Rdo-list] Attempt to reproduce https://github.com/beekhof/osp-ha-deploy/blob/master/HA-keepalived.md

________________________________ From: Alessandro Vozza <alessandro(a)namecheap.comSent: Saturday, November 14, 2015 4:26 AM To: Boris Derzhavets Cc: Dan Sneddon; rdo-list(a)redhat.com Subject: Re: [Rdo-list] Attempt to reproduce https://github.com/beekhof/osp-ha-deploy/blob/master/HA-keepalived.md I happened to have deployed following the exact same guide a cloud on bare metal composed of 3 controllers, 2 haproxy nodes and N computes, with external provider networks. What I did was: -) (at https://github.com/beekhof/osp-ha-deploy/blob/master/keepalived/neutron-c...): [https://avatars0.githubusercontent.com/u/114726?v=3&s=400]<https:/... beekhof/osp-ha-deploy osp-ha-deploy - scripts for deploying a HA install of OSP Read more...<https://github.com/beekhof/osp-ha-deploy/blob/master/keepalive... On controller and compute, define the external vlan interface and its bridge: cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-bond0.102 DEVICE=bond0.102 ONBOOT=yes DEVICETYPE=ovs TYPE=OVSPort OVS_BRIDGE=br-bond0.102 ONBOOT=yes BOOTPROTO=none VLAN=yes MTU="1500" NM_CONTROLLED=no EOF cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-br-bond0.102 DEVICE=br-bond0.102 DEVICETYPE=ovs OVSBOOTPROTO=none TYPE=OVSBridge ONBOOT=yes BOOTPROTO=static MTU="1500" NM_CONTROLLED=no EOF then, make sure that everywhere exists /etc/neutron/plugins/ml2/openvswitch_agent.ini as: [ovs] enable_tunneling = True tunnel_id_ranges = 1:1000 tenant_network_type = vxlan integration_bridge = br-int tunnel_bridge = br-tun local_ip = <IP on bond0bridge_mappings = physnet1:br-bond0.102 network_vlan_ranges = physnet1 [agent] tunnel_types = vxlan vxlan_udp_port = 4789 l2_population = False [securitygroup] firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver restart neutron-openvswitch-agent everywhere to make it work: [cid:762776E3-E3BC-4FA0-B1CF-3DAC1E1EBD91@fritz.box] Hope it helps Alessandro I would guess , that external net was created similar to this way controller# neutron net-create --router:external=True \ --provider:network_type=vlan --provider:segmentation_id=102 ext-network controller# neutron subnet-create --name ext-subnet --disable-dhcp \ --allocation-pool start 10.10.10.100,end=10.10.10.150 \ ext_network 10.10.10.0/24 of VLAN type not FLAT Could you be so kind to share yours ml2_conf.ini on controllers in cluster. I also believe that tuning your switch contains a kind of :- switchport trunk allowed vlan 100,102,104 Thank you Boris. 14 Nov 2015, at 09:35, Boris Derzhavets <bderzhavets@hotmail.com<mailto:bderzhavets@hotmail.com>> wrote: ________________________________________ From: Dan Sneddon <dsneddon@redhat.com<mailto:dsneddon@redhat.com>Sent: Friday, November 13, 2015 4:10 PM To: Boris Derzhavets; rdo-list@redhat.com<mailto:rdo-list@redhat.comSubject: Re: [Rdo-list] Attempt to reproduce https://github.com/beekhof/osp-ha-deploy/blob/master/HA-keepalived.md On 11/13/2015 12:56 PM, Dan Sneddon wrote: Hi Boris, Let's keep this on-list, there may be others who are having similar issues who could find this discussion useful. Answers inline... On 11/13/2015 12:17 PM, Boris Derzhavets wrote: ________________________________________ From: Dan Sneddon <dsneddon@redhat.com<mailto:dsneddon@redhat.com>Sent: Friday, November 13, 2015 2:46 PM To: Boris Derzhavets; Javier Pena Cc: rdo-list@redhat.com<mailto:rdo-list@redhat.comSubject: Re: [Rdo-list] Attempt to reproduce https://github.com/beekhof/osp-ha-deploy/blob/master/HA-keepalived.md On 11/13/2015 11:38 AM, Boris Derzhavets wrote: I understand that in usual situation , creating ifcfg-br-ex and ifcfg-eth2 ( as OVS bridge and OVS port) , `service network restart` should be run to make eth2 (no IP) OVS port of br-ex (any IP which belongs ext net and is available) What bad does NetworkManager when external network provider is used ? Disabling it, I break routing via eth0's interfaces of cluster nodes to 10.10.10.0/24 ( ext net), so nothing is supposed to work :- http://blog.oddbit.com/2014/05/28/multiple-external-networks-wit/ http://dbaxps.blogspot.com/2015/10/multiple-external-networks-with-single... Either I am missing something here. ________________________________________ From: rdo-list-bounces@redhat.com<mailto:rdo-list-bounces@redhat.com> <rdo-list-bounces@redhat.com<mailto:rdo-list-bounces@redhat.com>> on behalf of Boris Derzhavets <bderzhavets@hotmail.com<mailto:bderzhavets@hotmail.com>Sent: Friday, November 13, 2015 1:09 PM To: Javier Pena Cc: rdo-list@redhat.com<mailto:rdo-list@redhat.comSubject: [Rdo-list] Attempt to reproduce https://github.com/beekhof/osp-ha-deploy/blob/master/HA-keepalived.md Working on this task I was able to build 3 node HAProxy/Keepalived Controller's cluster , create compute node , launch CirrOS VM, However, I cannot ping floating IP of VM running on compute ( total 4 CentOS 7.1 VMs, nested kvm enabled ) Looks like provider external networks doesn't work for me. But , to have eth0 without IP (due to `ovs-vsctl add-port br-eth0 eth0 ) still allowing to ping 10.10.10.1, I need NetworkManager active, rather then network.service [root@hacontroller1 network-scripts]# systemctl status NetworkManager NetworkManager.service - Network Manager Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled) Active: active (running) since Fri 2015-11-13 20:39:21 MSK; 12min ago Main PID: 808 (NetworkManager) CGroup: /system.slice/NetworkManager.service ├─ 808 /usr/sbin/NetworkManager --no-daemon └─2325 /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-helper -pf /var/run/dhclient-eth0... Nov 13 20:39:22 hacontroller1.example.com<http://hacontroller1.example.com> NetworkManager[808]: <info> NetworkManager state is n...L Nov 13 20:39:22 hacontroller1.example.com<http://hacontroller1.example.com> dhclient[2325]: bound to 10.10.10.216 -- renewal in 1...s. Nov 13 20:39:22 hacontroller1.example.com<http://hacontroller1.example.com> NetworkManager[808]: <info> (eth0): Activation: succe.... Nov 13 20:39:25 hacontroller1.example.com<http://hacontroller1.example.com> NetworkManager[808]: <info> startup complete [root@hacontroller1 network-scripts]# systemctl status network.service network.service - LSB: Bring up/down networking Loaded: loaded (/etc/rc.d/init.d/network) Active: inactive (dead) [root@hacontroller1 network-scripts]# cat ifcfg-eth0 TYPE="Ethernet" BOOTPROTO="static" NAME="eth0" DEVICE=eth0 ONBOOT="yes" [root@hacontroller1 network-scripts]# ping -c 3 10.10.10.1 PING 10.10.10.1 (10.10.10.1) 56(84) bytes of data. 64 bytes from 10.10.10.1: icmp_seq=1 ttl=64 time=0.087 ms 64 bytes from 10.10.10.1: icmp_seq=2 ttl=64 time=0.128 ms 64 bytes from 10.10.10.1: icmp_seq=3 ttl=64 time=0.117 ms --- 10.10.10.1 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1999ms rtt min/avg/max/mdev = 0.087/0.110/0.128/0.021 ms If I disable NetworkManager and enable network this feature will be lost. Eth0 would have to have static IP or dhcp lease, to provide route to 10.10.10.0/24. Thank you. Boris. _______________________________________________ Rdo-list mailing list Rdo-list@redhat.com<mailto:Rdo-list@redhat.comhttps://www.redhat.com/mailman/listinfo/rdo-list To unsubscribe: rdo-list-unsubscribe(a)redhat.com OK, a few things here. First of all, you don't actually need to have an IP address on the host system to use a VLAN or interface as an external provider network. The Neutron router will have an IP on the right network, and within its namespace will be able to reach the 10.10.10.x network. It looks to me like NetworkManager is running dhclient for eth0, even though you have BOOTPROTO="static". This is causing an IP address to be added to eth0, so you are able to ping 10.10.10.x from the host. When you turn off NetworkManager, this unexpected behavior goes away, *but you should still be able to use provider networks*. Here I am quoting Lars Kellogg Stedman http://blog.oddbit.com/2014/05/28/multiple-external-networks-wit/ The bottom statement in blog post above states :- "This assumes that eth1 is connected to a network using 10.1.0.0/24 and eth2 is connected to a network using 10.2.0.0/24, and that each network has a gateway sitting at the corresponding .1 address." Right, what Lars means is that eth1 is physically connected to a network with the 10.1.0.0/24 subnet, and eth2 is physically connected to a network with the 10.2.0.0/24 subnet. You might notice that in Lars's instructions, he never puts a host IP on either interface. Try creating a Neutron router with an IP on 10.10.10.x, and then you should be able to ping that network from the router namespace. " When I issue `neutron router-creater --ha True --tenant-id xxxxxx RouterHA` , i cannot specify router's IP " Let me refer you to this page, which explains the basics of creating and managing Neutron networks: http://docs.openstack.org/user-guide/cli_create_and_manage_networks.html You will have to create an external network, which you will associate with a physical network via a bridge mapping. The default bridge mapping for br-ex is datacentre:br-ex. Using the name of the physical network "datacentre", we can create an 1. Javier is using external network provider ( and so did I , following him) #. /root/keystonerc_admin # neutron net-create public --provider:network_type flat --provider:physical_network physnet1 --router:external # neutron subnet-create --gateway 10.10.10.1 --allocation-pool start=10.10.10.100,end=10.10.10.150 --disable-dhcp --name public_subnet public 10.10.10.0/24 HA Neutron router and tenant's subnet have been created. Then interface to tenant's network was activated as well as gateway to public. Security rules were implemented as usual. Cloud VM was launched, it obtained private IP and committed cloud-init OK. Then I assigned FIP from public to cloud VM , it should be ping able from from F23 Visualization Host 2. All traffic to/from external network flows through br-int when provider external networks has been involved. No br-ex is needed. When in Javier does `ovs-vsctl add-port br-eth0 eth0` , eth0 (which is inside VM ,running Controller node) should be on 10.10.10.X/24. It doesn't happen when service network is active (and NM disabled) . In this case eth0 doesn't have any kind of IP assigned to provide route to Libvirt's subnet 10.10.10.X/24 ( pre created by myself) In meantime I am under impression that ovs bridge br-eth0 and OVS port eth0 would work when IP is assigned to port eth0, not to bridge. OVS release =>2.3.1 seems to allow that. Tested here (VM's case ) :- http://dbaxps.blogspot.com/2015/10/multiple-external-networks-with-single... If neither one of br-eth0 and eth0 would have IP then packets won't be forwarded to external net external network: [If the external network is on VLAN 104] neutron net-create ext-net --router:external \ --provider:physical_network datacentre \ --provider:network_type vlan \ --provider:segmentation_id 104 [If the external net is on the native VLAN (flat)] neutron net-create ext-net --router:external \ --provider:physical_network datacentre \ --provider:network_type flat Next, you must create a subnet for the network, including the range of floating IPs (allocation pool): neutron subnet-create --name ext-subnet \ --enable_dhcp=False \ --allocation-pool start=10.10.10.50,end=10.10.10.100 \ --gateway 10.10.10.1 \ ext-net 10.10.10.0/24 Next, you have to create a router: neutron router-create ext-router You then add an interface to the router. Since Neutron will assign the first address in the subnet to the router by default (10.10.10.1), you will want to first create a port with a specific IP, then assign that port to the router. neutron port-create ext-net --fixed-ip ip_address=10.10.10.254 You will need to note the UUID of the newly created port. You can also see this with "neutron port-list". Now, create the router interface with the port you just created: neutron router-interface-add ext-router port=<UUID If you want to be able to ping 10.10.10.x from the host, then you should put either a static IP or DHCP on the bridge, not on eth0. This should work whether you are running NetworkManager or network.service. "I do can ping 10.0.0.x from F23 KVM Server (running cluster's VMs as Controller's nodes), it's just usual non-default libvirt subnet,matching exactly external network creating in Javier's "Howto". It was created via `virsh net-define openstackvms.xml`, but I cannot ping FIPs belong to cloud VM on this subnet." I think you will have better luck once you create the external network and router. You can then use namespaces to ping the network from the router: First, obtain the qrouter-<UUID> from the list of namespaces: sudo ip netns list Then, find the qrouter-<UUID> and ping from there: ip netns exec qrouter-XXXX-XXXX-XXX-XXX ping 10.10.10.1 One more quick thing to note: In order to use floating IPs, you will also have to attach the external router to the tenant networks where floating IPs will be used. When you go through the steps to create a tenant network, also attach it to the router: 1) Create the network: neutron net-create tenant-net-1 2) Create the subnet: neutron subnet-create --name tenant-subnet-1 tenant-net-1 172.21.0.0/22 3) Attach the external router to the network: neutron router-interface-add tenant-router-1 subnet=tenant-subnet-1 (since no specific port was given in the router-interface-add command, Neutron will automatically choose the first address in the given subnet, so 172.21.0.1 in this example) -- Dan Sneddon | Principal OpenStack Engineer dsneddon@redhat.com<mailto:dsneddon@redhat.com> | redhat.com/openstack<http://redhat.com/openstack650.254.4025 | dsneddon:irc @dxs:twitter _______________________________________________ Rdo-list mailing list Rdo-list@redhat.com<mailto:Rdo-list@redhat.comhttps://www.redhat.com/mailman/listinfo/rdo-list To unsubscribe: rdo-list-unsubscribe@redhat.com<mailto:rdo-list-unsubscribe@redhat.com