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Additionally bumps CPU model to host-model as centos9 builds now require a subset of CPU processors which include advanced features. Host-model also allows for the VM to still start when running with pure qemu, as opposed to KVM passthrough. https://developers.redhat.com/blog/2021/01/05/building-red-hat-enterprise-linux-9-for-the-x86-64-v2-microarchitecture-level#architectural_considerations_for_rhel_9 Change-Id: Ic261efd4bf6f5929687df5e7b1b51b541554af18
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.. _deploy-ramdisk:
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Building or downloading a deploy ramdisk image
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==============================================
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Ironic depends on having an image with the
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:ironic-python-agent-doc:`ironic-python-agent (IPA) <>`
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service running on it for controlling and deploying bare metal nodes.
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Two kinds of images are published on every commit from every branch of
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:ironic-python-agent-doc:`ironic-python-agent (IPA) <>`
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* DIB_ images are suitable for production usage and can be downloaded from
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https://tarballs.openstack.org/ironic-python-agent/dib/files/.
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* For Train and older use CentOS 7 images.
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* For Ussuri and up to Yoga use CentOS 8 images.
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* For Zed and newer use CentOS 9 images.
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.. warning:: CentOS 7 master images are no longer updated and must not be
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used.
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.. warning:: The published images will not work for dhcp-less deployments
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since the simple-init_ element is not present. Check the DIB_
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documentation to see how to build the image.
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* TinyIPA_ images are suitable for CI and testing environments and can be
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downloaded from
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https://tarballs.openstack.org/ironic-python-agent/tinyipa/files/.
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Building from source
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--------------------
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Check the ironic-python-agent-builder_ project for information on how to build
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ironic-python-agent ramdisks.
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.. _DIB: https://docs.openstack.org/ironic-python-agent-builder/latest/admin/dib.html
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.. _TinyIPA: https://docs.openstack.org/ironic-python-agent-builder/latest/admin/tinyipa.html
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.. _ironic-python-agent-builder: https://docs.openstack.org/ironic-python-agent-builder/latest/
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.. _simple-init: https://docs.openstack.org/diskimage-builder/latest/elements/simple-init/README.html
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