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Learn how to identify and eliminate hidden cross-availability zone (cross-AZ) traffic that silently inflates cloud costs in Kubernetes environments through this DevOpsDays Tel Aviv conference talk. Discover the challenge of tracking invisible, expensive network traffic that persists even after scaling clusters and optimizing workloads. Explore how to leverage eBPF technology to surface and analyze cross-AZ traffic in real-time, enabling you to tag network flows with sufficient context to trace them back to specific services, nodes, and availability zones. Understand how this approach works effectively in dynamic environments with autoscaling and ephemeral pods without requiring sidecars, causing packet drops, or relying on guesswork. Examine the architecture of a system designed to provide platform teams with essential visibility into one of the cloud's most elusive cost drivers, including policy enforcement capabilities to keep traffic local when necessary. Gain practical insights for answering the persistent question of mysterious network bill charges and take control of this stealthy cost sink in your cloud infrastructure.
