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7948fee7e2
diskimage-builder/diskimage_builder/elements/dhcp-all-interfaces
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Harald Jensås 7948fee7e2 Install ndisc6 package in element script 
The ndisc6 package is not yet available in EPEL 8.
See: https://bugzilla.redhat.com/show_bug.cgi?id=1779134

Until the package is available set the pkg-map to "" for
the ndisc6 package when distro is redhat and install the
package using || true in the element script instead so
that CentOS 8 build's do not fail because of the missing
package.

Once the package is in EPEL 8 this change can be reverted.

Related-Bug: #1754219
Change-Id: Icd4bad8852ce5ba40fb0e7b0d335191efbe88c67
2019-12-03 14:57:33 +01:00
..
install.d Install ndisc6 package in element script 2019-12-03 14:57:33 +01:00
element-deps Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
package-installs.yaml Add IPv6 support in dhcp-all-interfaces 2019-11-13 09:31:01 +01:00
pkg-map Install ndisc6 package in element script 2019-12-03 14:57:33 +01:00
README.rst Set the dhclient timeout to match DIB_DHCP_TIMEOUT 2018-04-05 14:29:22 +01:00

README.rst 

===================
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).

Environment Variables
---------------------

DIB_DHCP_TIMEOUT
  :Required: No
  :Default: 30
  :Description: Amount of time in seconds that the systemd service(or dhclient)
   will wait to get an address. Should be increased in networks such as
   Infiniband.
  :Example: DIB_DHCP_TIMEOUT=300