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.. _deploy-ramdisk:
Building or downloading a deploy ramdisk image
==============================================
Ironic depends on having an image with the ironic-python-agent_ (IPA)
service running on it for controlling and deploying bare metal nodes.
You can download a pre-built version of the deploy ramdisk built with
the `CoreOS tools`_ at:
* `CoreOS deploy kernel <https://tarballs.openstack.org/ironic-python-agent/coreos/files/coreos_production_pxe.vmlinuz>`_
* `CoreOS deploy ramdisk <https://tarballs.openstack.org/ironic-python-agent/coreos/files/coreos_production_pxe_image-oem.cpio.gz>`_
.. _ironic-python-agent: https://docs.openstack.org/ironic-python-agent/latest/
Building from source
--------------------
There are two known methods for creating the deployment image with the
IPA service:
.. _BuildingCoreOSDeployRamdisk:
CoreOS tools
~~~~~~~~~~~~
#. Clone the ironic-python-agent_ project::
git clone https://git.openstack.org/openstack/ironic-python-agent
#. Install the requirements::
Fedora 21/RHEL7/CentOS7:
sudo yum install docker gzip util-linux cpio findutils grep gpg
Fedora 22 or higher:
sudo dnf install docker gzip util-linux cpio findutils grep gpg
Ubuntu 14.04 (trusty) or higher:
sudo apt-get install docker.io gzip uuid-runtime cpio findutils grep gnupg
SUSE:
sudo zypper install docker gzip util-linux cpio findutils grep gpg2
#. Change directory to ``imagebuild/coreos``::
cd ironic-python-agent/imagebuild/coreos
#. Start the docker daemon::
Fedora/RHEL7/CentOS7/SUSE:
sudo systemctl start docker
Ubuntu:
sudo service docker start
#. Create the image::
sudo make
#. Or, create an ISO image to boot with virtual media::
sudo make iso
.. note::
Once built the deploy ramdisk and kernel will appear inside of a
directory called ``UPLOAD``.
.. _BuildingDibBasedDeployRamdisk:
disk-image-builder
~~~~~~~~~~~~~~~~~~
#. Follow `diskimage-builder installation documentation`_ to install
diskimage-builder.
#. Create the image::
disk-image-create ironic-agent fedora -o ironic-deploy
The above command creates the deploy ramdisk and kernel named
``ironic-deploy.vmlinuz`` and ``ironic-deploy.initramfs`` in your
current directory.
#. Or, create an ISO image to boot with virtual media::
disk-image-create ironic-agent fedora iso -o ironic-deploy
The above command creates the deploy ISO named ``ironic-deploy.iso``
in your current directory.
.. note::
Fedora was used as an example for the base operational system. Please
check the `diskimage-builder documentation`_ for other supported
operational systems.
.. _`diskimage-builder documentation`: https://docs.openstack.org/diskimage-builder/latest/
.. _`diskimage-builder installation documentation`: https://docs.openstack.org/diskimage-builder/latest/user_guide/installation.html
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