stoney cloud: Resetting your Test-Environment

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Overview

This page describes how to easily reset your stoney cloud Test-Environment.

Prerequisites

After you've installed and configured your stoney cloud Test-Environment, but before you've added any profiles, you need to make a complete Backup of your LDAP directory: 

/usr/sbin/makeOpenLDAPmasterBackup.sh

The output will look something like: 

Backup directory /var/backup/ldap/vm-test-01.int.stoney-cloud.org exists
###################################################################################################
 
Removing backups older than 15 days ...
###################################################################################################
find /var/backup/ldap/vm-test-01.int.stoney-cloud.org -type f -ctime +15 -exec rm {} \; >/dev/null
 
Backup Started
###################################################################################################
 
Executing touch /var/backup/ldap/vm-test-01.int.stoney-cloud.org/OpenLDAPmasterBackup.ldif.2015-02-12
###################################################################################################
 
Executing chmod 600 /var/backup/ldap/vm-test-01.int.stoney-cloud.org/OpenLDAPmasterBackup.ldif.2015-02-12
###################################################################################################
 
Executing /usr/sbin/slapcat -l /var/backup/ldap/vm-test-01.int.stoney-cloud.org/OpenLDAPmasterBackup.ldif.2015-02-12
###################################################################################################
 
Backup Finished
###################################################################################################
 
You can look at the backup file with:
vi /var/backup/ldap/vm-test-01.int.stoney-cloud.org/OpenLDAPmasterBackup.ldif.2015-02-12

Copy the newly created OpenLDAPmasterBackup.ldif.2015-02-12 to another location for later use: 

mkdir -p /root/stoney-cloud-reset
cp /var/backup/ldap/vm-test-01.int.stoney-cloud.org/OpenLDAPmasterBackup.ldif.2015-02-12 /root/stoney-cloud-reset/.

Resetting your Test-Environment

Stop the Web Server

Stop the Web server on both Master-Nodes: 

/etc/init.d/apache2 stop

Stop the LDAP Server

Stop the LDAP server on both Master-Nodes: 

/etc/init.d/slapd stop

Remove all unnecessary Files

Remove all the unnecessary files on the Primary-Master-Node: 

rm /var/virtualization/iso-choosable/*.iso
rm /var/virtualization/iso/*.iso
rm /var/virtualization/vm-templates/*/*.qcow2
rm /var/virtualization/vm-dynamic/*/*.qcow2
rm /var/virtualization/vm-persistent/*/*.qcow2

Clean up the Firewall Rules

If you have configured the automatic firewall rules creation, you need to execute the following commands on the Primary-Master-Node: 

svn up /usr/local/scripts/netfilter/local/chains/vms
svn rm /usr/local/scripts/netfilter/local/chains/vms/*
svn ci -m "Removed all test VM rules" /usr/local/scripts/netfilter/local/chains/vms/

On the Secondary-Master-Node and all other VM-Nodes, you'll need to execute: 

svn up /usr/local/scripts/netfilter/local/chains/vms/

Remove libvirtd State

We need to remove all existing libvirtd states on all Master-Nodes and normal VM-Nodes: 

/etc/init.d/libvirtd stop
rm /etc/libvirt/qemu/*.xml
rm /var/lib/libvirt/qemu/channel/target/*
/etc/init.d/libvirtd start

Reset the LDAP Server

Now you reset the LDAP server with the the previously created backup: 

cp /root/stoney-cloud-reset/OpenLDAPmasterBackup.ldif.2015-02-12 /var/backup/ldap/vm-test-01.int.stoney-cloud.org/.
/usr/sbin/restoreOpenLDAPmaster.sh

You'll be led through the restore process: 

The following machines have an existing OpenLDAP backup:
###################################################################################################
total 4
drwxr-sr-x 4 root vm-storage   74 25. Dez 2013  .
drwx--S--- 5 root vm-storage   81  2. Apr 2014  ..
drwxr-sr-x 2 root vm-storage 4096 12. Feb 03:00 vm-test-01.int.stoney-cloud.org
drwxr-sr-x 2 root vm-storage   92 12. Feb 03:00 vm-test-02.int.stoney-cloud.org
 
Please enter the machine from which you want to restore from: 
vm-test-01.int.stoney-cloud.org
 
The following OpenLDAP backups exist:
###################################################################################################
total 1100
drwxr-sr-x 2 root vm-storage   4096 12. Feb 03:00 .
drwxr-sr-x 4 root vm-storage     74 25. Dez 2013  ..
-rw------- 1 root vm-storage 735229 11. Feb 10:26 OpenLDAPmasterBackup.ldif.2015-02-10
-rw------- 1 root vm-storage 192334 11. Feb 13:36 OpenLDAPmasterBackup.ldif.2015-02-11
-rw------- 1 root vm-storage 193662 12. Feb 11:55 OpenLDAPmasterBackup.ldif.2015-02-12
 
Please enter the date of the backup to restore in the form of YYYY-DD-MM (for example: 2007-10-15):
2015-02-12

The LDAP server has now been restored to the state from 2015-02-12, the indices have been created and the LDAP server has been started.

Start the Web Server

Start the Web server on the Primary-Master-Nodes: 

/etc/init.d/apache2 start
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