diskimage-builder/elements/yum-minimal/README.rst
Ian Wienand 1f499360fc yum-minimal: do not configure eth0 & eth1 for DHCP automatically
Add an environment variable to control the creation of eth0/1
interface enablement scripts.

With a tool such as glean, the presence of these scripts will indicate
the interface is configured and configuration-drive settings will not
be applied.  This means in a non-dhcp situation like on Rackspace,
network is broken.

On Fedora, where later systemd provides "predictable network interface
names" [1] eth0 & eth1 ironically aren't predictable so this just
confuses things.  You really need cloud-init or glean or something to
bring up your interfaces in a sane fashion.

This maintains the status-quo on centos-minimal, but disables creation
for fedora-minimal.

[1] http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

Change-Id: I3f1ffeb6de3b1f952292a144efab9554f7f99a5f
2015-12-22 08:39:04 +11:00

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===========
yum-minimal
===========
Base element for creating minimal yum-based images.
This element is incomplete by itself, you'll want to use the centos-minimal
or fedora-minimal elements to get an actual base image.
Use of this element will require 'yum' and 'yum-utils' to be installed on
Ubuntu and Debian. Nothing additional is needed on Fedora or CentOS.
The `DIB_OFFLINE` or more specific `DIB_YUMCHROOT_USE_CACHE`
variables can be set to prefer the use of a pre-cached root filesystem
tarball.
If you wish to have DHCP networking setup for eth0 & eth1 via
/etc/sysconfig/network-config scripts/ifcfg-eth[0|1], set the
environment variable `DIB_YUM_MINIMAL_CREATE_INTERFACES` to `1`.