openstack/diskimage-builder
Code Issues Proposed changes
fd5fbdd4b5
diskimage-builder/elements/dhcp-all-interfaces/README.rst
Matthew Thode de0cddc390
Add Gentoo to the dhcp-all-interfaces element 
This makes use of the dhcpcd package and it's ability to run on all
interfaces by default.  We disable the privacy extensions and dhcp
overriding the hostname (both are enabled by default).  Other than
that it 'just works' and was the method used to bring up interfaces
on Gentoo Openstack images before we switched to building with DIB.

Change-Id: I02c14927d70b22f560c6fc149fefca0f93933f56
2016-04-21 16:40:06 -05:00

874 B
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dhcp-all-interfaces

Autodetect network interfaces during boot and configure them for DHCP

The rationale for this is that we are likely to require multiple network interfaces for use cases such as baremetal and there is no way to know ahead of time which one is which, so we will simply run a DHCP client on all interfaces with real MAC addresses (except lo) that are visible on the first boot.

On non-Gentoo based distributions the script /usr/local/sbin/dhcp-all-interfaces.sh will be called early in each boot and will scan available network interfaces and ensure they are configured properly before networking services are started.

On Gentoo based distributions we will install the dhcpcd package and ensure the service starts at boot. This service automatically sets up all interfaces found via dhcp and/or dhcpv6 (or SLAAC).