HP Insight Control Software for Linux - Manual (Page 106)

The script is run in a chroot environment so there is no need to configure paths relative to the
Insight Control for Linux environment.
For information on how these scripts can be used, see the comments in the example scripts provided
with Insight Control for Linux.
10.1.3 Predeployment, postdeployment, and final deployment scripts
Like the Precapture and Postcapture scripts, the Predeployment, Postdeployment, and Final
Deployment scripts enable you to prepare or sanitize a captured image easily, but in this case
before deploying it. You can use a deployment script to undo what a Precapture or Predeployment
script did, or to perform some other action afterward.
A Predeployment script is run on the managed system before the image is deployed in the Insight
Control for Linux RAM disk.
A Postdeployment script is run on the managed system in the Insight Control for Linux RAM disk
after the image is deployed.
Final Deployment scripts are similar to Postdeployment scripts in that they run after the deployment
has finished, except that they are run in the environment of the newly-deployed operating system.
These scripts are optional; the default behavior is to not run any script.
Predeployment, Postdeployment, and Final Deployment scripts are Linux shell scripts; for more
information on adding, removing and managing them, see
Section 5.2.5 (page 51) .
NOTE: The Predeployment and Postdeployment scripts run in the Insight Control for Linux RAM
disk. The managed system's file system is mounted as read/write in the RAM disk under the /mnt/
target
mountpoint. If your scripts manipulate any files on the managed system, remember to
specify /mnt/target in the path; otherwise you are only manipulating the RAM disk files.
You can use any script that is registered and copied to the repository. Insight Control for Linux also
creates the /tmp/variables.txt file on a managed system, which contains hardware specific
information about the server. The script can source this file ( . /tmp/variables.txt) to load
information determined by the RAM disk about the current operating environment.
The /tmp/variables.txt file contains shell variables of the form VARIABLE="value". The
most important variables are:
HOSTNAME
DOMAINNAME
DEVICE
IPADDR
NETMASK
NETWORK
BROADCAST
GATEWAY
GATEWAYDEV
IMAGESERVER
The Final Deployment script performs a chroot command into the managed system's file system
as a final step in the deployment operation. The script is run in a chroot environment so there is
no need to configure paths relative to the Insight Control for Linux environment.
10.2 Prerequisites to capturing a Linux image
Table 17 lists the image deployment requirements of the source and target managed systems.
106 Capturing and deploying Linux images