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diskimage-builder/diskimage_builder/elements/dhcp-all-interfaces
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Olivier Bourdon 11d91501d0 Fix /etc/network/interfaces file contents 
According to http://bit.ly/2HA4oDO and
the official Ubuntu manual
http://manpages.ubuntu.com/manpages/xenial/man5/interfaces.5.html
source-dir support has been removed from Ubuntu >= 16.04/Xenial

Once an image is generated and booted, moving the dhcp interface(s)
declaration(s) from /etc/network/interfaces into specific subentries
of /etc/network/interfaces.d and calling 'service networking restart'
just make your instance unreachable and all interfaces are left
unconfigured.

This patchset fixes this issue

Change-Id: I6b6b99c81490c874c5db5405c2fbf3c180c87464
2018-06-19 11:26:21 +02:00
..
install.d Fix /etc/network/interfaces file contents 2018-06-19 11:26:21 +02:00
element-deps Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
package-installs.yaml Release 1.27.0 2017-02-03 11:49:45 +11:00
pkg-map Release 1.27.0 2017-02-03 11:49:45 +11:00
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