[lxc-users] multiple veths cannot configure for each default gateway

[Alvaro Miranda Aguilera]

docker is now not using lxc libraries, you want to check the new version
perhaps?

Alvaro.


On Sat, Apr 12, 2014 at 3:33 PM, Nakayama Kenjiro <nakayamakenjiro at gmail.com
> wrote:

> Hi,
>
> I tried to set up multiple veth and default GW for each veth in one
> container[1] by using docker with following command [2].
> But I got an error[3]. (When I setup with only one Default GW, it works
> well. So I think I can not default GW for each veth (eth0, eth1).)
>
> Is this my mis-configuration or lxc's bug?
> Can anybody figure out the cause of this problem?
>
> Thank you in advance.
>
> Kenjiro
>
> [1]
>      +-----------------+ Default GW
>      | +-------------+ | +-------+
>      | |    veth0    | | |  br1  |
>      | |172.16.42.20 |-|-|docker1|--
>      | +-------------+ | +-------+
>      |                 |
>      |                 | Default GW
>      | +-------------+ | +-------+
>      | |    veth1    | | |  br2  |
>      | |172.16.42.20 |-|-|docker2|--
>      | +-------------+ | +-------+
>      +-----------------+
>
> [2] docker execute command.
> docker run \
> -n=false \
> -lxc-conf="lxc.network.type = veth" \
> -lxc-conf="lxc.network.name = eth0" \
> -lxc-conf="lxc.network.ipv4 = 172.16.42.20/24" \
> -lxc-conf="lxc.network.ipv4.gateway = 172.16.42.1" \
> -lxc-conf="lxc.network.hwaddr = 00:FF:80:FF:FF:02" \
> -lxc-conf="lxc.network.link = docker1" \
> -lxc-conf="lxc.network.flags = up" \
> -lxc-conf="lxc.network.type = veth" \
> -lxc-conf="lxc.network.name = eth1" \
> -lxc-conf="lxc.network.ipv4 = 172.16.42.21/24" \
> -lxc-conf="lxc.network.hwaddr = 00:FF:80:FF:FF:01" \
> -lxc-conf="lxc.network.ipv4.gateway = 172.16.42.2" \
> -lxc-conf="lxc.network.link = docker2" \
> -lxc-conf="lxc.network.flags = up" \
> -i -t --name tmp1 mptcp-test /bin/bash
>
> [3] Error when executed docer run.
> ~~~
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> Warning: '-lxc-conf' is deprecated, it will be removed soon. See usage.
> lxc-start: failed to setup ipv4 gateway for 'eth1': File exists
> lxc-start: failed to setup netdev
> lxc-start: failed to setup the network for
> '41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: failed to setup the container
> lxc-start: invalid sequence number 1. expected 2
> lxc-start: failed to spawn
> '41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/cpuset/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/cpu,cpuacct/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/memory/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/devices/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/freezer/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/net_cls/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/blkio/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/perf_event/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> lxc-start: Device or resource busy - failed to remove cgroup
> '/sys/fs/cgroup/hugetlb/lxc/41794d153bafe7dc14dcc28520ff9f82b432ffcaed91572b6414d785d60db0dc'
> [error] client.go:2298 Error getting size: bad file descriptor
> ~~~
>
> [4] Bridge setting
> ~~~
> #!/bin/sh
>
> # Name of the bridge
> FIRST_BRIDGE_NAME=docker1
>
> # Bridge address
> FIRST_BRIDGE_ADDRESS=172.16.42.1/24
>
> # Add the docker1 bridge
> brctl addbr $FIRST_BRIDGE_NAME
>
> # Set up the IP for the docker1 bridge
> ip a add $FIRST_BRIDGE_ADDRESS dev $FIRST_BRIDGE_NAME
>
> # Activate the bridge
> ip link set $FIRST_BRIDGE_NAME up
>
> ### ----------------------- ###
>
> # Name of the bridge
> SECOND_BRIDGE_NAME=docker2
>
> # Bridge address
> SECOND_BRIDGE_ADDRESS=172.16.42.2/24
>
> # Add the docker1 bridge
> brctl addbr $SECOND_BRIDGE_NAME
>
> # Set up the IP for the docker2 bridge
> ip a add $SECOND_BRIDGE_ADDRESS dev $SECOND_BRIDGE_NAME
>
> # Activate the bridge
> ip link set $SECOND_BRIDGE_NAME up
> ~~~
>
>
> --
> Kenjiro NAKAYAMA <nakayamakenjiro at gmail.com>
> GPG Key fingerprint = ED8F 049D E67A 727D 9A44  8E25 F44B E208 C946 5EB9
>
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