Added "sealing" directory and a sealing script for Linux

This directory contains scripts to seal virtual machines so that they can be
converted into generalized templates. Other virtual machines can then be created
from these templates.

Signed-off-by: Samuli Seppänen <[email protected]>

Author: mattock

.gitignore

@@ -1 +1,2 @@
 bootstrap/custom
+sealing/custom

bootstrap/README.md

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+This directory contains scripts for bootstrapping new nodes. For example on 
+Windows they may install SSH and rsync and on Linux fetch and install Puppet.

sealing/README.md

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+This directory contains scripts for sealing an operating system before making it 
+a template in RHEV, for example. On Linux sealing typically entails removing 
+ssh_host keys and removing persistent net rules from udev.

sealing/linux/seal.sh

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+#!/bin/sh
+#
+# Remove node-specific information to allow converting it into a virtual
+# machine template.
+#
+echo "Removing SSH host keys"
+rm -f /etc/ssh/ssh_host_*
+
+echo "Removing persistent net rules from udev"
+rm -f /etc/udev/rules.d/70-persistent-net.rules
+