Sysadmin/Add virtual machine: Difference between revisions

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=== 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
  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)
* Now login as root from the console (there should be no password)
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  vi /etc/network/interfaces
  vi /etc/network/interfaces
 
* change machine fqdn
* 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
* activate new IP and hostname


  /etc/init.d/networking restart
  /etc/init.d/networking restart
 
* install latest security/stability updates
* 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
* 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
  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
* Move daily, weekly, monthly cronjobs to a unique timeslot to avoid cpu/net storms
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  vi /etc/motd.tail
  vi /etc/motd.tail
 
* Taa--daah!
* Taa--daah!


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* Add the machine to <code>/etc/munin/munin.conf</code> on [[Machine/sunjammer]] for monitoring.
* 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]].
See also: [[Sysadmin/Delete virtual machine]], [[Sysadmin/Migrate_virtual_machine]].