Sysadmin/Add virtual machine: Difference between revisions

Latest revision as of 21:08, 6 August 2017

Create new VM on Machine/justice or Machine/freedom

This procedure creates a clone of the Ubuntu Xenial template virtual machine.

virt-clone -o template-xenial --file=/var/lib/libvirt/images/boot/FOOBAR-boot.img --file=/dev/justice/FOOBAR-root -n FOOBAR
virsh autostart FOOBAR
virsh start --console FOOBAR

Add A and AAAA records for the new host in the sugarlabs.org zone file (See Service/Nameservers).

Now login as root from the console (there should be no password)

setup both IPv4 and IPv6 addresses

vi /etc/network/interfaces

change machine fqdn

sed -i -e s/template-xenial/FOOBAR/g /etc/hosts /etc/hostname /etc/mailname /etc/postfix/main.cf

activate new IP and hostname

/etc/init.d/networking restart

install latest security/stability updates

apt-get update
apt-get dist-upgrade

Find a nice color combo for HOST_COLOR in /etc/zzz_profile.conf

generate host keys and a key for root

rm /etc/ssh/ssh_host_*
dpkg-reconfigure openssh-server
ssh-keygen -N "" -f /root/.ssh/id_rsa -t rsa

Setup wizbackup on a backup server (See Service/backup)

Move daily, weekly, monthly cronjobs to a unique timeslot to avoid cpu/net storms

vi /etc/crontab

The most important thing: come up with a funny quip for this machine

vi /etc/motd.tail

Taa--daah!

reboot

Add the machine to /etc/munin/munin.conf on Machine/sunjammer for monitoring.

[FOOBAR.sugarlabs.org]
       address FOOBAR.sugarlabs.org

@@ Line 1: / Line 1: @@
-=== Create new VM on [[Machine/treehouse]] ===
+=== Create new VM on [[Machine/justice]] or [[Machine/freedom]] ===
-This procedure creates a clone of the [[Sysadmin/Template virtual machine]].
+This procedure creates a clone of the [[Machine/template-xenial|Ubuntu Xenial template virtual machine]].
- virsh vol-create-as treehouse FOOBAR-root 10G
+  virt-clone -o template-xenial --file=/var/lib/libvirt/images/boot/FOOBAR-boot.img --file=/dev/justice/FOOBAR-root -n FOOBAR
-  virt-clone --prompt -o template-lucid --file=/dev/treehouse/FOOBAR-root -n FOOBAR
+ virsh autostart FOOBAR
   virsh start --console FOOBAR
-* Add A and AAAA records for the new host in the sugarlabs.org zone file (See [[Sysadmin/Nameservers]]).
+* Add A and AAAA records for the new host in the sugarlabs.org zone file (See [[Service/Nameservers]]).
 * Now login as root from the console (there should be no password)
@@ Line 17: / Line 17: @@
 * change machine fqdn
-  sed -i -e s/template-lucid/FOOBAR/ /etc/hostname /etc/postfix/main.cf
+  sed -i -e s/template-xenial/FOOBAR/g /etc/hosts /etc/hostname /etc/mailname /etc/postfix/main.cf
-* fix /etc/hosts
- vim /etc/hosts
 * activate new IP and hostname
   /etc/init.d/networking restart
 * install latest security/stability updates
-  aptitude update
+  apt-get update
-  aptitude full-upgrade
+  apt-get dist-upgrade
+* Find a nice color combo for HOST_COLOR in /etc/zzz_profile.conf
 * generate host keys and a key for root
-  ssh-keygen -N "" -f /etc/ssh/ssh_host_rsa_key -t rsa
+  rm /etc/ssh/ssh_host_*
-  ssh-keygen -N "" -f /etc/ssh/ssh_host_dsa_key -t dsa
+  dpkg-reconfigure openssh-server
   ssh-keygen -N "" -f /root/.ssh/id_rsa -t rsa
-* Install <code>/root/.ssh/id_rsa.pub</code> key on <code>sugarbackup@backup.sugarlabs.org</code>
+* Setup wizbackup on a backup server (See [[Service/backup]])
-* Setup backups
- vi /etc/system-full-backup.conf
-* Log in for the first time on backup server to accept ssh fingerprint
- ssh sugarbackup@backup.sugarlabs.org
 * Move daily, weekly, monthly cronjobs to a unique timeslot to avoid cpu/net storms
@@ Line 62: / Line 52: @@
 * Add the machine to <code>/etc/munin/munin.conf</code> on [[Machine/sunjammer]] for monitoring.
-  [housetree.sugarlabs.org]
+  [FOOBAR.sugarlabs.org]
-         address housetree.sugarlabs.org
+         address FOOBAR.sugarlabs.org
 See also: [[Sysadmin/Delete virtual machine]], [[Sysadmin/Migrate_virtual_machine]].