#3020: Creating backup of osgeo6 as lxc container on osgeo7
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Reporter: robe | Owner: sac@…
Type: task | Status: new
Priority: normal | Milestone: Sysadmin Contract 2023-I
Component: SysAdmin | Keywords:
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Doing this so we can test upgrades and other stuff.
It went thru okay (first time I'm successfully using lxd-migration (a 5.0
version though, couldn't get the new one to compile as it complained about
dqlite, of which I had no success installing)
Steps are listed in
https://git.osgeo.org/gitea/sac/osgeo7/wiki/osgeo6-backup----IN-PROGRESS,
but I'll repeat here since nothing top secret about it
On osgeo6
{{{
sudo -i
screen #create new screen so if get disconnected will still be running
# worked this time 54.8GB copied
screen
./lxd-migrate
1) Url: https://osgeo7.osgeo.osuosl.org:8443
2) choose 1 - certificate token
a) create on osgeo7 using (lxd config trust add (specify osgeo6 for
name), copy token
3) a) Choose create container
b) name: osgeo6-2023-11-05
4) root path: /
5) Extra mounts: yes
6) mount: /var
7) mount: /var/lib/mailman
8) mount: /home
9) enter #will end list
9) 1) begin migration
Ctrl a d #exit out of screen and detach to keep it running
screen -r #pick the job # to reconnect
# after migration is complete
systemctl enable rsyslog
systemctl start rsyslog
}}}
Note I didn't bother copying /var/www, so sites will not start, most of
that stuff is deprecated, so I plan to rsync it over after the container
starts up.
# on osgeo7
{{{
lxc start osgeo6-2023-11-05
}}}
It took a really long time to start up, was on "Remapping filesystem for
long time (like 20 minutes)
At this point it has no ip, cause well old was hard-coded
# on osge7
{{{
lxc snapshot osgeo6-2023-11-05 before-changes
lxc exec osgeo6-2023-11-05 bash
}}}
# in osgeo6 backup container
{{{
#disable services
systemctl disable mailman
systemctl disable postfix #stop mail from sending
systemctl disable fail2ban
systemctl disable bacula-fd
systemctl stop mailman
systemctl enable rsyslog
systemctl stop cron.d
systemctl disable cron.d
#systemctl mask systemd-journald
systemctl start systemd-journald
systemctl disable munin-node #removed on osgeo6 so not needed to disable
any more
systemctl disable lvm2
systemctl stop lvm2
systemctl start rsyslog
nano /etc/hostname #change to osgeo6-backup
mv /etc/fstab /etc/fstab.orig
touch /etc/fstab #save blank
mv /etc/network/interfaces /etc/network/interfaces.orig
nano /etc/network/interfaces #change
#contents after changing to static private
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
--
reboot
}}}
--
Ticket URL: <https://trac.osgeo.org/osgeo/ticket/3020>
OSGeo <Gter - OSGeo;
OSGeo committee and general foundation issue tracker.