Commits on Jun 24, 2024

1. Fix gateway datapath disrupt on update …

   Reimplementing the vswitchd reload using separate start and stop scripts
   so that it can be executed partially between consecutives instances of
   the pod. To avoid disruptions, it runs ovs save-flows command on the
   stop-vswitchd script, saving the resulting backup on a mounted folder
   from the host and then loading that backup on the start script. For this
   to succeed, the script needs to set the flow-restore-wait flag from ovs
   to true while loading the flows.
   
   Note that ovs save-flows command needs to have ovsdb-server running, so
   a semaphore like mechanism was added to ensure the ovsdb-server
   container is never deleted before ovs-vswitchd.
   
   Closes-Issue: OSPRH-6326

   

   elvgarrui authored and ralonsoh committed Jun 24, 2024
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