Hi,
I have 2 bridges lxdbr0, lxdbr1 and I am experiencing some issues with ip-addressing and DNS resolution.
Hoping somebody can advise where I am going wrong.
lxc network list
+--------+----------+---------+-------------+---------+
| NAME | TYPE | MANAGED | DESCRIPTION | USED BY |
+--------+----------+---------+-------------+---------+
| eno1 | physical | NO | | 0 |
+--------+----------+---------+-------------+---------+
| lxdbr0 | bridge | YES | | 12 |
+--------+----------+---------+-------------+---------+
| lxdbr1 | bridge | YES | | 12 |
+--------+----------+---------+-------------+---------+
| virbr0 | bridge | NO | | 0 |
+--------+----------+---------+-------------+---------+
| wlp3s0 | physical | NO | | 0 |
+--------+----------+---------+-------------+---------+
lxc network show lxdbr0
config:
ipv4.address: 10.0.3.254/24
ipv4.nat: "true"
ipv6.address: none
description: ""
name: lxdbr0
type: bridge
used_by:
- /1.0/containers/tnt-ter-clr-0
- /1.0/containers/tnt-ter-clr-2
- /1.0/containers/tnt-ter-file-0
- /1.0/containers/tnt-ter-ha-0
- /1.0/containers/tnt-ter-infra-0
- /1.0/containers/tnt-ter-jss-0
- /1.0/containers/tnt-ter-mail-0
- /1.0/containers/tnt-ter-rds-0
- /1.0/containers/tnt-ter-rmq-0
- /1.0/containers/tnt-ter-sts-0
- /1.0/containers/tnt-ter-voip-0
- /1.0/containers/tnt-ter-www-0
managed: true
status: Created
locations:
- none
lxc network show lxdbr1
config:
ipv4.address: 10.0.4.254/24
ipv4.nat: "true"
ipv6.address: none
description: ""
name: lxdbr1
type: bridge
used_by:
- /1.0/containers/tnt-vod-clr-1
- /1.0/containers/tnt-vod-clr-3
- /1.0/containers/tnt-vod-file-1
- /1.0/containers/tnt-vod-ha-1
- /1.0/containers/tnt-vod-infra-1
- /1.0/containers/tnt-vod-jss-1
- /1.0/containers/tnt-vod-mail-1
- /1.0/containers/tnt-vod-rds-1
- /1.0/containers/tnt-vod-rmq-1
- /1.0/containers/tnt-vod-sts-1
- /1.0/containers/tnt-vod-voip-1
- /1.0/containers/tnt-vod-www-1
managed: true
status: Created
locations:
- none
During creating the containers I specify the mac and ip address of each container using the following commands.
lxc config device set {{ item.hostname }} {{ item.iface }} ipv4.address {{ item.address }}
lxc config set {{ item.hostname }} volatile.{{ item.iface }}.hwaddr {{ item.mac }}
This results in each host having a file under /var/lib/lxd/networks/
where there is a folder for each bridge
sudo ls /var/lib/lxd/networks/
lxdbr0 lxdbr1
Each file under /var/lib/lxd/networks/lxdbr0/dnsmasq.hosts is correct and in the format 00:16:3e:4a:83:13,10.0.3.13,tnt-ter-clr-0
sudo ls /var/lib/lxd/networks/lxdbr0/dnsmasq.hosts
tnt-ter-clr-0 tnt-ter-ha-0 tnt-ter-mail-0 tnt-ter-sts-0
tnt-ter-clr-2 tnt-ter-infra-0 tnt-ter-rds-0 tnt-ter-voip-0
tnt-ter-file-0 tnt-ter-jss-0 tnt-ter-rmq-0 tnt-ter-www-0
and yet, I get problems with containers not getting their IP addresses.
lxc list
+-----------------+---------+------------------+------+------------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-clr-0 | RUNNING | 10.0.3.13 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-clr-2 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-file-0 | RUNNING | 10.0.3.15 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-ha-0 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-infra-0 | RUNNING | 10.0.3.10 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-jss-0 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-mail-0 | RUNNING | 10.0.3.20 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-rds-0 | RUNNING | 10.0.3.17 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-rmq-0 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-sts-0 | RUNNING | 10.0.3.18 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-voip-0 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-ter-www-0 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-clr-1 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-clr-3 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-file-1 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-ha-1 | RUNNING | | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-infra-1 | RUNNING | 10.0.4.10 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-jss-1 | RUNNING | 10.0.4.19 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-mail-1 | RUNNING | 10.0.4.20 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-rds-1 | RUNNING | 10.0.4.17 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-rmq-1 | RUNNING | 10.0.4.16 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-sts-1 | RUNNING | 10.0.4.18 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-voip-1 | RUNNING | 10.0.4.21 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
| tnt-vod-www-1 | RUNNING | 10.0.4.12 (eth0) | | PERSISTENT | 0 |
+-----------------+---------+------------------+------+------------+-----------+
I also find that systemd-resolve is working very hard and resolution to domains from the containers is sometimes timing out.
957 systemd+ 20 0 71896 7388 5448 R 97.4 0.0 896:25.27 systemd-resolve
18402 lxd 20 0 60104 2236 1828 R 35.4 0.0 288:01.41 dnsmasq
18465 lxd 20 0 60104 2768 2312 R 31.5 0.0 293:12.54 dnsmasq