============== centos-minimal ============== Create a minimal image based on CentOS 7. 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. By default, `DIB_YUM_MINIMAL_CREATE_INTERFACES` is set to enable the creation of `/etc/sysconfig/network-scripts/ifcfg-eth[0|1]` scripts to enable DHCP on the `eth0` & `eth1` interfaces. If you do not have these interfaces, or if you are using something else to setup the network such as cloud-init, glean or network-manager, you would want to set this to `0`.