7511faa2b1
Includes: * Enhancements to the generate-interfaces-file.sh script so that it generates ifcfg network-scripts for distros like Fedora/RHEL. * Includes a new dhcp-all-interfaces.service systemd script which ensures network interfaces get generated before the network service starts on Fedora. * Add a new disable_interface function to generate-interfaces-file.sh which (on Fedora) will delete the ifcfg config for an interface which isn't plugged in. This is important because ifcfg-eth0 exists by default and we want to remove it if the NIC isn't connected. Previous behaviour on Ubuntu is unchanged and the generate-interfaces-file.sh just logs it as skipped. * General doc updates... I tested this on a multi-nic machine w/ Fedora where the first NIC exists but was not connected. Change-Id: Ia99e312539da43caefd72aa60398d43dac5dcc8f Closes-Bug: 1239880 |
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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 (except lo) that are visible on the first boot.
The script /usr/local/sbin/generate-interfaces-file.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.