I’m exploring options for invalidating cache entries across all pods in our project and we are using https://github.com/mittwald/kube-httpcache.

I’m looking for alternatives to Varnish in a distributed environment(Pods) for cache invalidation. We’re also open to using Varnish itself if there’s a way to invalidate the cache with strong consistency.

Though Signaller supports this, its fire and forget approach, I need is strong consistency not a eventual consistency.

Has anyone encountered a similar situation and found a solution that meets these criteria?