Скачать или смотреть When They Go High, We Go Low – Hooking Libc Calls to Debug Kubernetes Apps - Tal Zwick, MetalBear

Don't miss out! Join us at our next Flagship Conference: KubeCon + CloudNativeCon North America in Salt Lake City from November 12 - 15, 2024. Connect with our current graduated, incubating, and sandbox projects as the community gathers to further the education and advancement of cloud native computing. Learn more at https://kubecon.io

When They Go High, We Go Low – Hooking Libc Calls to Debug Kubernetes Apps - Tal Zwick, MetalBear

Many tools exist for debugging cloud-native applications, and they mostly take one of two approaches: they either continuously sync local files to the remote container, or they connect the local machine to the cluster. mirrord takes a novel approach: when developers run their code with mirrord, it injects a dynamic library into the process, hooks libc calls, and relays some operations to be executed on the cluster instead of locally. That way, developers can run their code locally and debug it with a debugger. With all of the code's input and output forwarded to and from the cluster, the local process “thinks” it’s running in the cluster and can be tested and debugged in cloud conditions. This talk will discuss the rationale behind using low-level techniques in cloud-native tooling, explain some of the low level Rust code that makes it possible, and show mirrord in action with a live demo.