60 lines
2.0 KiB
ReStructuredText
60 lines
2.0 KiB
ReStructuredText
=======================================
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Using Bifrost with your own DHCP server
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=======================================
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The possibility exists that a user may already have a Dynamic Host
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Configuration Protocol (DHCP) server on their network.
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Currently Ironic, when configured with Bifrost in standalone mode, does not
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utilize a DHCP provider. This would require a manual configuration of the
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DHCP server to deploy an image. Bifrost utilizes dnsmasq for this
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functionality; however, any DHCP server can be utilized. This is largely
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intended to function in the context of a single flat network although
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conceivably the nodes can be segregated.
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What is required:
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- DHCP server on the network segment
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- Appropriate permissions to change DHCP settings
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- Network access to the API and conductor. Keep in mind the iPXE image does not
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support ICMP redirects.
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Example DHCP server configurations
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----------------------------------
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In the examples below port 8080 is used. However, the port number may vary
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depending on the environment configuration.
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dnsmasq::
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dhcp-match=set:ipxe,175 # iPXE sends a 175 option.
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dhcp-boot=tag:!ipxe,undionly.kpxe,<TFTP Server Hostname>,<TFTP Server IP Address>
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dhcp-boot=http://<Bifrost Host IP Address>:8080/boot.ipxe
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Internet Systems Consortium DHCPd::
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if exists user-class and option user-class = "iPXE" {
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filename "http://<Bifrost Host IP Address>:8080/boot.ipxe";
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} else {
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filename "undionly.kpxe";
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next-server <TFTP Server IP Address>;
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}
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Architecture
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------------
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It should be emphasized that Ironic in standalone mode is intended to be used only
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in a trusted environment.
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::
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+-------------+
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| DHCP Server |
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+-------------+
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+--------Trusted-Network----------+
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+-------------+ +-----------+
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|Ironic Server| | Server |
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+-------------+ +-----------+
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