Kubeshark (formerly Mizu) is an observability and monitoring tool that captures all the network traffic inside a Kubernetes cluster, including ingress, egress and across containers and pods.
Kubeshark can even capture and display the encrypted (TLS) traffic using various Linux kernel technologies. It supports a wide variety of application layer protocols and RPCs like gRPC, GraphQL, etc.
Kubeshark is open-source and free to use. It has a large userbase.
We recently renamed the project from "Mizu" to "Kubeshark". Please give Kubeshark a shout-out. It's a carefully crafted tool by a handful of Kubernetes enthusiasts for Kubernetes enthusiasts!