OpenStack – Neutron debug

techhadoop

root@osc:/# nova list –all_tenants | grep ov1
| 3b49799f-4149-4f17-8f04-55e0a683066a | ov1        | ACTIVE | –          | Running     | net_ext2=192.168.122.6  |

root@n1:/var/lib/nova/instances/3b49799f-4149-4f17-8f04-55e0a683066a# grep -i tap libvirt.xml
<target dev=”tapdc783dde-d2“/>

 

root@n1:/var/lib/nova/instances/3b49799f-4149-4f17-8f04-55e0a683066a# iptables -S | grep dc783dde
-N neutron-openvswi-idc783dde-d
-N neutron-openvswi-odc783dde-d
-N neutron-openvswi-sdc783dde-d
-A neutron-openvswi-FORWARD -m physdev –physdev-out tapdc783dde-d2 –physdev-is-bridged -j neutron-openvswi-sg-chain
-A neutron-openvswi-FORWARD -m physdev –physdev-in tapdc783dde-d2 –physdev-is-bridged -j neutron-openvswi-sg-chain
-A neutron-openvswi-INPUT -m physdev –physdev-in tapdc783dde-d2 –physdev-is-bridged -j neutron-openvswi-odc783dde-d
-A neutron-openvswi-idc783dde-d -m state –state RELATED,ESTABLISHED -j RETURN
-A neutron-openvswi-idc783dde-d -s 192.168.122.3/32 -p udp -m udp –sport 67 –dport 68 -j RETURN
-A neutron-openvswi-idc783dde-d -p tcp -m tcp –dport 22 -j RETURN
-A neutron-openvswi-idc783dde-d -p icmp -j RETURN
-A neutron-openvswi-idc783dde-d -m set –match-set NETIPv44ccfe044-b6e2-423 src -j RETURN
-A neutron-openvswi-idc783dde-d -m state –state INVALID -j DROP
-A neutron-openvswi-idc783dde-d -j neutron-openvswi-sg-fallback
–A neutron-openvswi-odc783dde-d -p udp -m udp –sport 68 –dport 67 -j RETURN
-A neutron-openvswi-odc783dde-d -j neutron-openvswi-sdc783dde-d
-A neutron-openvswi-odc783dde-d -p udp -m udp –sport 67 –dport 68 -j DROP
-A neutron-openvswi-odc783dde-d -m state –state RELATED,ESTABLISHED -j RETURN
-A neutron-openvswi-odc783dde-d -j RETURN
-A neutron-openvswi-odc783dde-d -m state –state INVALID -j DROP
-A neutron-openvswi-odc783dde-d -j neutron-openvswi-sg-fallback
-A neutron-openvswi-sdc783dde-d -s 192.168.122.6/32 -m mac –mac-source FA:16:3E:4F:FD:53 -j RETURN
-A neutron-openvswi-sdc783dde-d -j DROP
-A neutron-openvswi-sg-chain -m physdev –physdev-out tapdc783dde-d2 –physdev-is-bridged -j neutron-openvswi-idc783dde-d
-A neutron-openvswi-sg-chain -m physdev –physdev-in tapdc783dde-d2 –physdev-is-bridged -j neutron-openvswi-odc783dde-d

 

root@n1:~# brctl show
bridge name                        bridge id        STP          enabled    interfaces
qbr68056772-f9        8000.fa13574c4ed1    no        qvb68056772-f9
tap68056772-f9
qbr73435e86-ea        8000.ce293c1486a0    no        qvb73435e86-ea
tap73435e86-ea
qbr9774fd60-c9        8000.468449c27608    no        qvb9774fd60-c9
tap9774fd60-c9
qbrd5b4ec48-7a        8000.76161ed62b88    no        qvbd5b4ec48-7a
tapd5b4ec48-7a
qbrdc783dde-d2        8000.3ef673f5c71d    no        qvbdc783dde-d2
tapdc783dde-d2
virbr0        8000.000000000000    yes

 

root@n1:~# ovs-vsctl show
99f3e195-b0e4-4d2b-af97-0ad02c8e0125
Bridge br-int
fail_mode: secure
Port br-int
Interface br-int
type: internal
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port “qvodc783dde-d2”
tag: 1
Interface “qvodc783dde-d2”
Port “qvo73435e86-ea”
tag: 1
Interface “qvo73435e86-ea”
Port “qvo9774fd60-c9”
tag: 4
Interface “qvo9774fd60-c9”
Port “qvo68056772-f9”
tag: 2
Interface “qvo68056772-f9”
Port “qvod5b4ec48-7a”
tag: 3
Interface “qvod5b4ec48-7a”
Bridge br-tun
fail_mode: secure
Port br-tun
Interface br-tun
type: internal
Port “gre-c0a8640a”
Interface “gre-c0a8640a”
type: gre
options: {df_default=”true”, in_key=flow, local_ip=”192.168.100.12″, out_key=flow, remote_ip=”192.168.100.10″}
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
ovs_version: “2.0.2”

 

root@work:~# ip netns list
qdhcp-79521d7b-5be6-46ec-ad26-2cef476e238c
qdhcp-3d08e795-22cf-4210-841e-749670aae23a
qdhcp-5a443267-f277-4d3d-b19b-9d5540c38cd4
qdhcp-8fba63e3-7650-4b23-9495-1ba81ee1b310
qdhcp-473bfc4b-866f-4fbb-bd11-a975d300f710 ——–>>>>  Network ID ( EXT 2 )
qdhcp-947108a9-b157-44ac-bfa0-5652fb6e3480
qrouter-2078f2ea-3b8a-4811-8173-b38bb84c9b6b
qrouter-b69e49fa-a09a-4d4a-927e-f764f25a2778

root@work:~# ip netns exec qdhcp-473bfc4b-866f-4fbb-bd11-a975d300f710 ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
20: tap480bbf91-8b: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
link/ether fa:16:3e:c2:d4:87 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.3/24 brd 192.168.122.255 scope global tap480bbf91-8b
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fec2:d487/64 scope link
valid_lft forever preferred_lft forever

 

root@work:~# ps -auxww | grep 473bfc4b-866f-4fbb-bd11-a975d300f710
nobody    3979  0.0  0.0  28208  1352 ?        S    aug05   0:00 dnsmasq –no-hosts –no-resolv –strict-order –bind-interfaces –interface=tap480bbf91-8b –except-interface=lo –pid-file=/var/lib/neutron/dhcp/473bfc4b-866f-4fbb-bd11-a975d300f710/pid –dhcp-hostsfile=/var/lib/neutron/dhcp/473bfc4b-866f-4fbb-bd11-a975d300f710/host –addn-hosts=/var/lib/neutron/dhcp/473bfc4b-866f-4fbb-bd11-a975d300f710/addn_hosts –dhcp-optsfile=/var/lib/neutron/dhcp/473bfc4b-866f-4fbb-bd11-a975d300f710/opts –dhcp-leasefile=/var/lib/neutron/dhcp/473bfc4b-866f-4fbb-bd11-a975d300f710/leases –dhcp-range=set:tag0,192.168.122.0,static,86400s –dhcp-lease-max=256 –conf-file= –domain=openstacklocal
root     17864  0.0  0.0  17552  2536 pts/7    S+   19:40   0:00 grep –color=auto 473bfc4b-866f-4fbb-bd11-a975d300f710

 

root@work:~# ip netns exec qdhcp-473bfc4b-866f-4fbb-bd11-a975d300f710 tcpdump port 67 or port 68 -lne
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tap480bbf91-8b, link-type EN10MB (Ethernet), capture size 65535 bytes

 

root@work:~# ip netns exec qdhcp-473bfc4b-866f-4fbb-bd11-a975d300f710 ip li
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
20: tap480bbf91-8b: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/ether fa:16:3e:c2:d4:87 brd ff:ff:ff:ff:ff:ff

root@work:~# ovs-vsctl show | grep -A1 tap480bbf91-8b
        Port “tap480bbf91-8b”
tag: 1
Interface “tap480bbf91-8b”
type: internal

 

root@work:~# ip netns exec qrouter-b69e49fa-a09a-4d4a-927e-f764f25a2778 ip rule
0:    from all lookup local
32766:    from all lookup main
32767:    from all lookup default

root@work:~# ip netns exec qrouter-2078f2ea-3b8a-4811-8173-b38bb84c9b6b ip rule
0:    from all lookup local
32766:    from all lookup main
32767:    from all lookup default

 

root@osc:/etc/nova# neutron router-list

root@osc:/etc/nova# neutron l3-agent-list-hosting-router router_dev2
+————————————–+—————- – +—————-      +——-+
| id                                                                     | host  | admin_state_up | alive  |
+————————————–                  +——+—————-+——-+
| e6071dcc-4c12-45ba-a7b1-01e64af15c42 | work  | True                   |    🙂    |
+————————————–+     —–           ——+—————-+——-+

 

root@osc:/home/asix# nova list
+————————————–+——–+——–+————+————-+————————————-+
| ID | Name | Status | Task State | Power State | Networks |
+————————————–+——–+——–+————+————-+————————————-+
| 0bf8961d-6326-49b9-a501-16cb7bdcd48c | asix1 | ACTIVE | – | Running | lingesh-net=192.168.4.10 |
| b581acb0-337c-497e-ad35-09da84492277 | i1 | ACTIVE | – | Running | lingesh-net=192.168.4.9 |
| 718f28af-4126-4af3-8f69-4505874216b9 | ovi777 | ACTIVE | – | Running | test-metadata-in-dhcp=192.168.111.4 |
| e6c1bbdf-3bcd-42ba-a70d-d9bad0b7de14 | ovi778 | ACTIVE | – | Running | test-metadata-in-dhcp=192.168.111.5 |
+————————————–+——–+——–+————+————-+————————————-+
root@osc:/home/asix# nova show asix1
+————————————–+———————————————————-+
| Property | Value |
+————————————–+———————————————————-+
| OS-DCF:diskConfig | AUTO |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | n1 |
| OS-EXT-SRV-ATTR:hypervisor_hostname | n1 |
| OS-EXT-SRV-ATTR:instance_name | instance-00000064 |
| OS-EXT-STS:power_state | 1 |
| OS-EXT-STS:task_state | – |
| OS-EXT-STS:vm_state | active |
| OS-SRV-USG:launched_at | 2016-08-20T20:56:12.000000 |
| OS-SRV-USG:terminated_at | – |
| accessIPv4 | |
| accessIPv6 | |
| config_drive | |
| created | 2016-08-20T20:55:39Z |
| flavor | m1.small (2) |
| hostId | 410946e5d0a018e7b0327d3072ee33edc19b066d2024d804e3a62e07 |
| id | 0bf8961d-6326-49b9-a501-16cb7bdcd48c |
| image | CentOS (6d3b314b-de25-4f09-aefa-64cbb762937d) |
| key_name | k1 |
| lingesh-net network | 192.168.4.10 |
| metadata | {} |
| name | asix1 |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | ACTIVE |
| tenant_id | 859ccf28d2824d4a844f819b4f33e257 |
| updated | 2016-08-20T20:56:12Z |
| user_id | 81bf40676b004e2cba0cd583ac9d4dc8 |
+————————————–+———————————————————-+

 

root@osc:/home/asix# nova-manage service list
Binary           Host                                 Zone             Status     State Updated_At
nova-cert        osc                                  internal         enabled    XXX   2016-08-21 17:18:19
nova-consoleauth osc                                  internal         enabled    🙂   2016-08-21 20:01:10
nova-scheduler   osc                                  internal         enabled    XXX   2016-08-21 17:18:14
nova-conductor   osc                                  internal         enabled    🙂   2016-08-21 20:01:10
nova-compute     n1                                   nova             enabled    🙂   2016-08-21 20:01:04

root@osc:/home/asix# service nova-scheduler status
nova-scheduler stop/waiting

root@osc:/home/asix# service nova-scheduler start
nova-scheduler start/running, process 4075

root@osc:/home/asix# service nova-cert status
nova-cert stop/waiting

root@osc:/home/asix# service nova-cert start
nova-cert start/running, process 4105

root@osc:/home/asix# service nova-cert status
nova-cert start/running, process 4105

 

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