openstack/tripleo-puppet-elements
Code Issues Proposed changes

Add remove-machine-id element

Browse Source 
Leaving /etc/machine-id on the image means that all nodes booted from
this image will have the same machine-id, which is wrong. A new
machine-id will be generated during the first boot. This element can be
used to purge the machine-id from the image.

Change-Id: Idd848cd307c179afa557618f44db34b2fb57d937
Related-Bug: #1672461
Co-Authored-By: Dmitry Tantsur <dtantsur@redhat.com>
This commit is contained in:
Alex Schultz 2017-03-13 14:35:13 -06:00
parent 85f4604298
commit c7c1da513e
2 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
elements/remove-machine-id/README.md Normal file
View File

@ -0,0 +1,9 @@
=================
remove-machine-id
=================
Removes the hardcoded ``/etc/machine-id`` from the resulting image, so that it
is regenerated during the next boot.
Leaving the file means that e.g. all instances will have the same machine-id.

8
elements/remove-machine-id/post-install.d/70-remove-machine-id Normal file
View File

@ -0,0 +1,8 @@
#!/bin/bash
set -eu
set -o pipefail
# In order to make sure not all nodes have the same machine id, we need to
# remove it from the image and it should be generated on boot. LP#1672461
rm -f /etc/machine-id