diskimage-builder/diskimage_builder/elements/redhat-common
Nir Magnezi ee46e2f9b7 Add version-less RHEL element for RHEL7 and RHEL8
Make a version-less RHEL element to handle both '7' and '8' DIB_RELEASE.
The element usage should align with other elements which operate in the
same way such as the Fedora element.

Additionally, this patch adds support for RHEL8 that operates with
Python 3.
As of now, users of diskimage-builder will still be able to use the
'rhel7' element, or migrate to 'rhel' and specify their respective
DIB_RELEASE value.

* mount the xfs file-system for extraction as read-only.  vaguely
  based on explaination in [1] and the fact we only read the image
  data into a tar, so can ignore this.

    XFS (dm-1): Superblock has unknown read-only compatible features (0x4) enabled.

* Use the redhat system python as the dib-python version.  dib was
  ahead of it's time making an abstracted python interpreter for
  system work ;) the system python should work for running the various
  dib element scripts.

[1] https://unix.stackexchange.com/questions/247550/unmountable-xfs-filesystem

Redhat-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1700253
Co-Authored-By: Ian Wienand <iwienand@redhat.com>
Change-Id: I90540675c70bb475d9db2ae24f81c648a31f3f95
2019-05-29 11:28:53 +03:00
..
bin Add version-less RHEL element for RHEL7 and RHEL8 2019-05-29 11:28:53 +03:00
environment.d Release 1.25.2 2017-02-02 11:20:00 +11:00
finalise.d Fix latest-limit command line 2017-07-18 13:17:10 +10:00
element-deps Clear /etc/machine-id to avoid duplicate machine-ids 2017-08-06 13:56:58 -04:00
package-installs.yaml Install ca-certificate with redhat-common 2018-08-04 00:30:49 +02:00
pkg-map Add version-less RHEL element for RHEL7 and RHEL8 2019-05-29 11:28:53 +03:00
README.rst Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00

=============
redhat-common
=============
Image installation steps common to RHEL, CentOS, and Fedora.

Requirements:

If used to build an image form a cloud image compress with xz
(the default in centos), this element uses "unxz" to decompress
the image. Depending on your distro you may need to install either
the xz or xz-utils package.

Environment Variables
---------------------

DIB_LOCAL_IMAGE
  :Required: No
  :Default: None
  :Description: Use the local path of a qcow2 cloud image. This is useful in
   that you can use a customized or previously built cloud image from
   diskimage-builder as input. The cloud image does not have to have been built
   by diskimage-builder. It should be a full disk image, not just a filesystem
   image.
  :Example: ``DIB_LOCAL_IMAGE=rhel-guest-image-7.1-20150224.0.x86_64.qcow2``

DIB_DISABLE_KERNEL_CLEANUP
  :Required: No
  :Default: 0
  :Description: Specify if kernel needs to be cleaned up or not. When set to
   true, the bits that cleanup old kernels will not be executed.
  :Example: DIB_DISABLE_KERNEL_CLEANUP=1