1b5159a07d
Changes in commit 7f8ae630b87392193974dd9cb198c1165cdec93b moved pid files handled by agent/linux/external_process.py from $state_path/external/<uuid>.pid to $state_path/external/<uuid>/pid that breaks the neutron-ns-metadata-proxy respawn after upgrades becase the l3 or dhcp agent can't find the old pid file so they try to start a new neutron-ns-metadata-proxy which won't succeed, because the old one is holding the port already. Closes-Bug: #1376128 Change-Id: Id166ec8e508aaab8eea35d89d010a5a0b7fdba1f