How to install Inspektor Gadget
Inspektor Gadget is a collection of tools (or gadgets) to debug and inspect Kubernetes applications. While it was originally designed for Lokomotive , Kinvolk’s open-source Kubernetes distribution, it works just as well on other Kubernetes distributions.
How does it work?
Inspektor Gadget is deployed to each node as a privileged DaemonSet. It uses in-kernel BPF helper programs to monitor events mainly related to syscalls from userspace programs in a pod. The BPF programs are run by the kernel and gather the log data. Inspektor Gadget’s userspace utilities fetch the log data from ring buffers and display it. What BPF programs are and how Inspektor Gadget uses them is briefly explained here:
- Read more about the architecture
- Learn how to install Inspektor Gadget
- Kernel requirements for each gadget
Inspektor Gadget continuous integration workflow
Understand how everything comes together.
Kernel requirements per gadget.
Syntax reference for using the Trace custom resource with each gadget.
This section provides an overview of the gadgets included in Inspektor Gadget and guidance on how to use each.
Basic usage of the Trace resource
How to use the local-gadget tool.
How to contribute to Inspektor Gadget.
Trace is the Schema for the traces API