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History

Robert Collins c7875398b3 Fix resource exhaustion with upstart. When high VM churn is encountered dhcp-all-interfaces got tangled up and leaked instances until upstart run out of filedescriptors. This happened because we were locking on every invocation, and the lock logic was disabling the single-interface code - so we always probed every interface every time - and this was serialized across every instance of dhcp-all-interfaces. Change-Id: I4ef1fb83d978cc99d4cb9cc2666bde302c6db7d1	2014-04-01 22:45:12 +13:00
..
install.d	Fix resource exhaustion with upstart.	2014-04-01 22:45:12 +13:00
README.md	Rename generate-interfaces-file.sh...	2014-01-23 16:38:41 -05:00

Robert Collins c7875398b3 Fix resource exhaustion with upstart.

When high VM churn is encountered dhcp-all-interfaces got tangled up
and leaked instances until upstart run out of filedescriptors.

This happened because we were locking on every invocation, and the
lock logic was disabling the single-interface code - so we always
probed every interface every time - and this was serialized across
every instance of dhcp-all-interfaces.

Change-Id: I4ef1fb83d978cc99d4cb9cc2666bde302c6db7d1

2014-04-01 22:45:12 +13:00

install.d

Fix resource exhaustion with upstart.

2014-04-01 22:45:12 +13:00

README.md

Rename generate-interfaces-file.sh...

2014-01-23 16:38:41 -05:00

README.md

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.

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.