diskimage-builder/elements/ironic-agent
Ian Wienand cb0e0e903d Use dnf to cleanup old kernels
As described in the comment, there is a dnf equivalent of this command
that doesn't require us installing yum-utils (which drags in yum on
dnf-only systems such as f23)

This is a small consequence to this -- due to us not installing
yum-utils some installs will now be completely yum free.  This causes
a breakage in ironic-agent 99-remove-extra-packages where we remove
the yum package.  There is a long-standing bug/feature where missing
packages in a group of packages do not cause yum/dnf to exit with
failure, but uninstalling a single package will.  Because we have made
the systems yum-free, the uninstall of yum can fail in this corner
case.

It has always been like this, so I'm in favour of the "ain't broke"
approach.  To work-around this, I have just put yum into the existing
list of packages to be cleaned up.  I have added a note to the yum
installer taking note of this behaviour for future reference.

Change-Id: I8bbdc07ccdb89a105b4fc70d5a215077c42fcd03
2016-02-08 14:20:56 +11:00
..
cleanup.d Selectively prune /root for ironic-agent ramdisk 2015-10-26 11:19:28 +09:00
environment.d Use ironic-agent for source-repositories 2015-11-22 15:03:31 -05:00
finalise.d Use dnf to cleanup old kernels 2016-02-08 14:20:56 +11:00
install.d Install ironic-agent dependencies via package-installs 2015-09-21 13:10:30 +02:00
post-install.d Remove dnf workaround in ironic-agent 2015-09-21 13:13:19 +02:00
test-elements/build-succeeds-fedora Remove zero length files 2016-01-20 19:08:54 -05:00
element-deps [ironic-agent] Use svc-map for enabling agent 2015-09-01 07:12:52 -04:00
element-provides Add element for building ramdisk with ironic-python-agent 2014-11-13 19:30:44 +02:00
package-installs.yaml Add kmod to package-installs of ironic-agent 2015-12-09 14:27:21 +00:00
pkg-map Install ironic-agent dependencies via package-installs 2015-09-21 13:10:30 +02:00
README.rst ironic-agent element to output a .kernel file 2015-09-23 19:02:54 -04:00
source-repository-ironic-agent Use ironic-agent for source-repositories 2015-11-22 15:03:31 -05:00
svc-map [ironic-agent] Use svc-map for enabling agent 2015-09-01 07:12:52 -04:00

============
ironic-agent
============
Builds a ramdisk with ironic-python-agent.  More information can be found at:
    https://git.openstack.org/cgit/openstack/ironic-python-agent/

Beyond installing the ironic-python-agent, this element does the following:

* Installs the ``dhcp-all-interfaces`` so the node, upon booting, attempts to
  obtain an IP address on all available network interfaces.
* Disables the ``iptables`` service on SysV and systemd based systems.
* Disables the ``ufw`` service on Upstart based systems.
* Installs packages required for the operation of the ironic-python-agent::
    ``qemu-utils`` ``parted`` ``hdparm`` ``util-linux`` ``genisoimage``
* When installing from source, ``python-dev`` and ``gcc`` are also installed
  in order to support source based installation of ironic-python-agent and its
  dependencies.

This element outputs three files:

- ``$IMAGE-NAME.initramfs``: The deploy ramdisk file containing the
  ironic-python-agent (IPA) service.
- ``$IMAGE-NAME.kernel``: The kernel binary file.
- ``$IMAGE-NAME.vmlinuz``: A hard link pointing to the ``$IMAGE-NAME.kernel``
  file; this is just a backward compatibility layer, please do not rely
  on this file.

.. note::
   The package based install currently only enables the service when using the
   systemd init system. This can easily be changed if there is an agent
   package which includes upstart or sysv packaging.

.. note::
   Using the ramdisk will require at least 1.5GB of ram