====== LXC containers ======
The current defined containers are listed here. Note that the actual active container for visionlab website is **visielab-test**
^ NAME ^ STATE ^ IPV4 ^ IPV6 ^ TYPE ^ SNAPSHOTS ^
| nextcloud | RUNNING | 10.27.117.84 (eth0) | | PERSISTENT | 6 |
| openaudit | RUNNING | 10.27.117.9 (eth0) | | PERSISTENT | 2 |
| visielab | STOPPED | | | PERSISTENT | 3 |
| visielab-test | RUNNING | 10.27.117.155 (eth0) | | PERSISTENT | 7 |
| visielab-wiki | RUNNING | 10.27.117.55 (eth0) | | PERSISTENT | 0 |
To do some testing on the visielab website, just make a snapshot, and then copy the snapshot. Then you can experiment on that copy after starting it. For example, visielab-test is currently the active visielab website. To test some special stuff on that website, we do the following.
#lxc snapshot visielab-test
#lxc info visielab-test
Name: visielab-test
Remote: unix://
Architecture: x86_64
Created: 2018/01/05 12:22 UTC
Status: Running
Type: persistent
Profiles: default
Pid: 14568
Ips:
eth0: inet 10.27.117.155 vethQK0QJ3
eth0: inet6 fe80::216:3eff:fe85:6ba6 vethQK0QJ3
lo: inet 127.0.0.1
lo: inet6 ::1
Resources:
Processes: 83
Disk usage:
root: 10.10GB
Memory usage:
Memory (current): 847.15MB
Memory (peak): 862.75MB
Network usage:
eth0:
Bytes received: 316.82MB
Bytes sent: 10.25GB
Packets received: 1772073
Packets sent: 1675147
lo:
Bytes received: 106.16kB
Bytes sent: 106.16kB
Packets received: 1100
Packets sent: 1100
Snapshots:
snap0 (taken at 2018/01/12 13:34 UTC) (stateless)
snap1 (taken at 2018/01/26 14:44 UTC) (stateless)
snap2 (taken at 2018/01/31 12:28 UTC) (stateless)
snap3 (taken at 2018/02/23 12:21 UTC) (stateless)
snap4 (taken at 2018/02/26 12:10 UTC) (stateless)
snap5 (taken at 2018/03/30 13:52 UTC) (stateless)
snap6 (taken at 2018/04/04 06:58 UTC) (stateless)
#lxc copy visielab-test/snap6 visielab-test2
root@visionsrv2:/etc/apache2/sites-available# lxc list
+----------------+---------+----------------------+------+------------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+----------------+---------+----------------------+------+------------+-----------+
| nextcloud | RUNNING | 10.27.117.84 (eth0) | | PERSISTENT | 6 |
+----------------+---------+----------------------+------+------------+-----------+
| openaudit | RUNNING | 10.27.117.9 (eth0) | | PERSISTENT | 2 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab | STOPPED | | | PERSISTENT | 3 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab-test | RUNNING | 10.27.117.155 (eth0) | | PERSISTENT | 7 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab-test2 | STOPPED | | | PERSISTENT | 0 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab-wiki | RUNNING | 10.27.117.55 (eth0) | | PERSISTENT | 0 |
+----------------+---------+----------------------+------+------------+-----------+
#lxc start visielab-test2
#lxc start visielab-test2
root@visionsrv2:/etc/apache2/sites-available# lxc list
+----------------+---------+----------------------+------+------------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+----------------+---------+----------------------+------+------------+-----------+
| nextcloud | RUNNING | 10.27.117.84 (eth0) | | PERSISTENT | 6 |
+----------------+---------+----------------------+------+------------+-----------+
| openaudit | RUNNING | 10.27.117.9 (eth0) | | PERSISTENT | 2 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab | STOPPED | | | PERSISTENT | 3 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab-test | RUNNING | 10.27.117.155 (eth0) | | PERSISTENT | 7 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab-test2 | RUNNING | 10.27.117.250 (eth0) | | PERSISTENT | 0 |
+----------------+---------+----------------------+------+------------+-----------+
| visielab-wiki | RUNNING | 10.27.117.55 (eth0) | | PERSISTENT | 0 |
+----------------+---------+----------------------+------+------------+-----------+
===== networking of the LXC containers =====
We defined all networking in /etc/lxd_bridge.conf .To use dnsmasq with this data, the correct variable must be defined in /etc/default/lxd-bridge -> LXD_CONFILE="/etc/lxd_bridge.conf". If you modify something in this file, you have to stop dnsmasq manually (kill) and restart it afterwards. dnsmasq doesn't seem to run as a service. the process and it's parameters can be copied from here :
dnsmasq --conf-file=/etc/lxd_bridge.conf -s ua.ac.be -S /ua.ac.be/ -u lxd --strict-order --bind-interfaces --pid-file=/run/lxd-bridge//dnsmasq.pid --dhcp-no-override --except-interface=lo --interface=lxdbr0 --dhcp-leasefile=/var/lib/lxd-bridge//dnsmasq.lxdbr0.leases --dhcp-authoritative --listen-address 10.27.117.1 --dhcp-range 10.27.117.2,10.27.117.254 --dhcp-lease-max=252
cat lxd_bridge.conf
domain=ac.ua.be
dhcp-host=nextcloud,10.27.117.84
dhcp-host=openaudit,10.27.117.9
dhcp-host=visielab,10.27.117.144
dhcp-host=visielab-test,10.27.117.155
dhcp-host=visielab-test2,10.27.117.250
dhcp-host=visielab-wiki,10.27.117.55
===== reverse proxying via apache =====
to address the different websites in the lxc containers, we use reverse proxying with apache2. We define the lxc backends and there ip addresses in **/etc/hosts** (lso check that the ip addresses match with the above lxd_bridge.conf definitions):
127.0.0.1 localhost
127.0.1.1 visionsrv2.ua.ac.be visionsrv2
10.27.117.84 nextcloud_be
10.27.117.9 openaudit_be
10.27.117.144 visielab_be
10.27.117.155 visielab-test_be
10.27.117.250 visielab-test2_be
10.27.117.55 visielab_wiki_be
For apache the following sites are available :
^ site config ^ DNS ^ domain ^ LXC backend ^ description ^
| visieinv | visieinv | ua.ac.be | openaudit_be | for inventory of the PC's at visionlab |
| visielab-pc | visielab-pc | ua.ac.be \\ uantwerpen.be | nextcloud_be | private cloud for visionlab , secured with a SSL certificate |
| visielab-ssl | visielab | ua.ac.be \\ uantwerpen.be | visielab-test_be | visielab's website, secured with a SSL certificate |
| visielab | visielab | ua.ac.be \\ uantwerpen.be | visielab-test_be | redirect of http to https |
| visielab-test | visielab-test | ua.ac.be | visielab-test2_be | visielab test website , to test things out |
| visielab-wiki | visiedoc | ua.ac.be | visielab_wiki_be | the dokuwiki website of visionlab |