2012-11-30 20:47:57 +00:00
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A ramdisk to report the hardware of a machine to an inventory service.
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2012-12-06 14:34:29 +00:00
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This will collect up some basic information about the hardware it
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boots on:
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* CPU cores
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* RAM
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* Disk
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* NIC mac address
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This information will then be collated into a JSON document, base64
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encoded and passed, via HTTP POST, to a URL that you must specify on
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the kernel commandline, thus:
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HW_DISCOVERY_URL=http://1.2.3.4:56/hw_script.asp
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This is currently fairly fragile as there can be a huge variability in
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the number of disks/NICs in servers and how they are configured.
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If other elements wish to inject data into the hardware discovery data,
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they can - they should be specified before hwdiscovery to the image
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building script, and they should contain something like this in their
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init fragment:
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_vendor_hwdiscovery_data="$_vendor_hwdiscovery_data
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\"some vendor key\" : \"some data you care about\",
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\"some other vendor key\" : \"some other data you care about\","
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Note that you are essentially feeding JSON into the main hwdiscovery
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JSON.
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This will allow any number of vendor specific hwdiscovery elements to
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chain together their JSON fragments and maintain consistency.
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