Difference between revisions of "Sysadmin/Add virtual machine"

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=== Create new VM on [[Machine/treehouse]] ===
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=== Create new VM on [[Machine/justice]] or [[Machine/freedom]] ===
  
virsh vol-create-as treehouse FOOBAR 10G
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This procedure creates a clone of the [[Machine/template-xenial|Ubuntu Xenial template virtual machine]].
  virt-clone -o template-jaunty --file=/dev/treehouse/FOOBAR -n FOOBAR
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  virt-clone -o template-xenial --file=/var/lib/libvirt/images/boot/FOOBAR-boot.img --file=/dev/justice/FOOBAR-root -n FOOBAR
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virsh autostart FOOBAR
 
  virsh start --console FOOBAR
 
  virsh start --console FOOBAR
  
* Login using the default root password (ask bernie), then setup the machine:
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* Add A and AAAA records for the new host in the sugarlabs.org zone file (See [[Service/Nameservers]]).
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* Now login as root from the console (there should be no password)
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* setup both IPv4 and IPv6 addresses
  
# change root password
 
passwd root
 
 
# setup both IPv4 and IPv6 addresses (remember to update zone files)
 
 
  vi /etc/network/interfaces
 
  vi /etc/network/interfaces
 
# change machine fqdn
 
sed -i -e s/template-jaunty/FOOBAR/ /etc/hostname /etc/postfix/main.cf
 
 
# activate new IP and hostname
 
service networking restart
 
 
# install latest security/stability updates
 
aptitude update
 
aptitude full-upgrade
 
 
# generate host keys and a key for root
 
ssh-keygen -q -N "" -f /etc/ssh/ssh_host_rsa_key -t rsa
 
ssh-keygen -q -N "" -f /etc/ssh/ssh_host_dsa_key -t dsa
 
ssh-keygen -q -N "" -f /root/.ssh/id_rsa -t rsa
 
  
* Install <code>/root/.ssh/id_rsa.pub</code> key on <code>sugarbackup@backup.sugarlabs.org</code>
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* change machine fqdn
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sed -i -e s/template-xenial/FOOBAR/g /etc/hosts /etc/hostname /etc/mailname /etc/postfix/main.cf
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* activate new IP and hostname
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/etc/init.d/networking restart
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* install latest security/stability updates
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apt-get update
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apt-get dist-upgrade
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* Find a nice color combo for HOST_COLOR in /etc/zzz_profile.conf
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* generate host keys and a key for root
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rm /etc/ssh/ssh_host_*
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dpkg-reconfigure openssh-server
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ssh-keygen -N "" -f /root/.ssh/id_rsa -t rsa
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* Setup wizbackup on a backup server (See [[Service/backup]])
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* Move daily, weekly, monthly cronjobs to a unique timeslot to avoid cpu/net storms
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vi /etc/crontab
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* The most important thing: come up with a funny quip for this machine
  
# 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
 
 
# the most important thing: come up with a funny quip for this machine
 
 
  vi /etc/motd.tail
 
  vi /etc/motd.tail
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# taa--daah!
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* Taa--daah!
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  reboot
 
  reboot
  
* Add the machine to <code>/etc/munin/munin.conf</code> on [[Machine:Sunjammer]] for monitoring.
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* Add the machine to <code>/etc/munin/munin.conf</code> on [[Machine/sunjammer]] for monitoring.
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[FOOBAR.sugarlabs.org]
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        address FOOBAR.sugarlabs.org
  
See also: [[Infrastructure Team/Delete virtual machine]].
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See also: [[Sysadmin/Delete virtual machine]], [[Sysadmin/Migrate_virtual_machine]].

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

See also: Sysadmin/Delete virtual machine, Sysadmin/Migrate_virtual_machine.