Keep historical ips index records #591
Merged
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If destination pod was deleted right before the network metrics scraping we would miss such destination. This PR changes ip index to keep recently deleted records for some time. One limitation is that since we can still have collisions (new pod get's the same ip address) in such case we would not enrich destination context.
Another related improvement is that now we will have a single call to kvisor controller to get ips details by batch. It was observed that local cache is not efficient and we are making quite a lot of calls. This adds to egress usage.