Nova Docker Networking problem
Hello,
I've installed OpenStack with Docker as hypervisor on a cubietruck, everything seems to work ok but the container ip does not respond to pings nor respond to the service i'm running inside the container (nginx por 80).
I checked how nova created the container and it looks like everything is in place:
nova list
+--------------------------------------+---------------+--------+------------+-------------+----------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+---------------+--------+------------+-------------+----------------------+ | 249df778-b2b6-490c-9dce-1126f8f337f3 | test_nginx_13 | ACTIVE | - | Running | public=192.168.1.135 | +--------------------------------------+---------------+--------+------------+-------------+----------------------+
# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 89b59bf9f442 sotolitolabs/nginx_arm:latest "/usr/sbin/nginx" 6 hours ago Up 6 hours nova-249df778-b2b6-490c-9dce-1126f8f337f3
A funny thing that i noticed but i'm not really sure it's relevant, the docker container does not show network info when created by nova:
# docker inspect 89b59bf9f442 .... unnecesary output.... "NetworkSettings": { "Bridge": "", "Gateway": "", "IPAddress": "", "IPPrefixLen": 0, "PortMapping": null, "Ports": null },
# neutron router-list +--------------------------------------+---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+-------+ | id | name | external_gateway_info | distributed | ha | +--------------------------------------+---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+-------+ | f8dc7e15-1087-4681-b495-217ecfa95189 | router1 | {"network_id": "160add9a-2d2e-45ab-8045-68b334d29418", "enable_snat": true, "external_fixed_ips": [{"subnet_id": "1ae33c0b-a04e-47b6-bdba-bbdf9a3ef14d", "ip_address": "192.168.1.120"}]} | False | False | +--------------------------------------+---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+-------+
# neutron subnet-list +--------------------------------------+----------------+----------------+----------------------------------------------------+ | id | name | cidr | allocation_pools | +--------------------------------------+----------------+----------------+----------------------------------------------------+ | 34995548-bc2b-4d33-bdb2-27443c01e483 | private_subnet | 10.0.0.0/24 | {"start": "10.0.0.2", "end": "10.0.0.254"} | | 1ae33c0b-a04e-47b6-bdba-bbdf9a3ef14d | public_subnet | 192.168.1.0/24 | {"start": "192.168.1.120", "end": "192.168.1.200"} | +--------------------------------------+----------------+----------------+----------------------------------------------------+
# neutron port-list +--------------------------------------+------+-------------------+--------------------------------------------------------------------------------------+ | id | name | mac_address | fixed_ips | +--------------------------------------+------+-------------------+--------------------------------------------------------------------------------------+ | 863eb9a3-461c-4016-9bd1-7c4c7210db98 | | fa:16:3e:24:7b:2c | {"subnet_id": "34995548-bc2b-4d33-bdb2-27443c01e483", "ip_address": "10.0.0.2"} | | bbe59188-ab4e-4b92-a578-bbc2d6759295 | | fa:16:3e:1c:04:6a | {"subnet_id": "1ae33c0b-a04e-47b6-bdba-bbdf9a3ef14d", "ip_address": "192.168.1.135"} | | c8b94a90-c7d1-44fc-a582-3370f5486d26 | | fa:16:3e:6f:69:71 | {"subnet_id": "34995548-bc2b-4d33-bdb2-27443c01e483", "ip_address": "10.0.0.1"} | | f108b583-0d54-4388-bcc0-f8d1cbe6efd4 | | fa:16:3e:bb:3a:1b | {"subnet_id": "1ae33c0b-a04e-47b6-bdba-bbdf9a3ef14d", "ip_address": "192.168.1.120"} | +--------------------------------------+------+-------------------+--------------------------------------------------------------------------------------+
the network namespace is being created:
# ip netns exec 89b59bf9f442a0d468d9d4d8c9370c53f8e4a3ba4d8affcd6be8b2dde84fff64 ifconfig lo: flags=73<up,loopback,running> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 nsbbe59188-ab: flags=4163<up,broadcast,running,multicast> mtu 1500 inet 192.168.1.135 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::f816:3eff:fe1c:46a prefixlen 64 scopeid 0x20<link> ether fa:16:3e:1c:04:6a txqueuelen 1000 (Ethernet) RX packets 8 bytes 648 (648.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 8 bytes 648 (648.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
when i try a ping it does not return:
# ping -c3 192.168.1.135 PING 192.168.1.135 (192.168.1.135) 56(84) bytes of data. From 192.168.1.65 icmp_seq=1 Destination Host Unreachable From 192.168.1.65 icmp_seq=2 Destination Host Unreachable From 192.168.1.65 icmp_seq=3 Destination Host Unreachable --- 192.168.1.135 ping statistics --- 3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2008ms ...