Add pic to show airshipctl use of Zuul images
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README.md
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README.md
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@ -101,4 +101,28 @@ Configuration management of the base OS is divided into several realms, each wit
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# FAQ
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# FAQ
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Q: Why is the build target slow?
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Q: Why is the build target slow?
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A: There is a `mksquashfs` command which runs as part of the build target, and performs slowly if your build environment lacks certain CPU flags which accelerate compression. Use "host-passthrough" or equivalent in your build environment to pass through these CPU flags. In libvirt domain XML, you would change your `cpu` mode element as follows: `<cpu mode='host-passthrough' check='none'/>`
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A: There is a `mksquashfs` command which runs as part of the build target, and performs slowly if your build environment lacks certain CPU flags which accelerate compression. Use "host-passthrough" or equivalent in your build environment to pass through these CPU flags. In libvirt domain XML, you would change your `cpu` mode element as follows: `<cpu mode='host-passthrough' check='none'/>`
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# How Zuul image artifacts are used by Airshipctl
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+------------------------------------------------------+ +----------------------------------------+
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| Built by Zuul | | Airshipctl Deployment Process |
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| +----------------------+ | | +--------------+ +---------------+ |
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| |Base container image +--+--+->| Ephemeral ISO|<---+ Site Manifests| |
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| |built by image-builder| | | +--------------+ +---------------+ |
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| +-----------+----------+ | | |
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| +-----------------------+ +----------v-----------+ | | +---------------------------------+ |
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| |Profiles from +-->|QCOW container image +-+--+->| QCOWs hosted from this container| |
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| |image-builder/manifests| |built by image-builder| | | | image by airshipctl | |
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| +-----------------------+ +----------------------+ | | +------------------+--------------+ |
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| +-------------------------+ | | +------------------v----------------+ |
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| |IPA container image +-+--+->|IPA image for node discovery. IPA | |
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| |built in airshipit/images| | | |deploys QCOW target image(s) pulled| |
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| +-------------------------+ | | |from hosted QCOW container above. | |
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| | | +-----------------------------------+ |
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+------------------------------------------------------+ +----------------------------------------+
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