documentation
inspektor-gadget
documentation | inspektor-gadget | |
---|---|---|
5 | 8 | |
454 | 1,932 | |
- | 1.8% | |
6.1 | 9.9 | |
almost 3 years ago | 6 days ago | |
Shell | C | |
Apache License 2.0 | Apache License 2.0 |
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documentation
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Speed boost achievement unlocked on Docker Desktop 4.6 for Mac
Both Kata Containers and UTM support virtio-fs, so this is not strictly true. The former can be used as a stand-in replacement for the runtime used by docker desktop[1]. With the latter, one could use a UTM-backed guest as a docker runtime in macOS[2] or run docker directly on the guest[3].
[1] https://github.com/kata-containers/documentation/blob/master...
[2] https://www.codeluge.com/post/setting-up-docker-on-macos-m1-...
[3] https://www.lifeintech.com/2021/11/03/docker-performance-on-...
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Kubernetes Security Checklist 2021
For services with increased security requirements, it is recommended to use a low-level run-time with a high degree of isolation (gVisior, Kata-runtime)
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Kata Containers on GKE?
On the official Kata repo, I found a tutorial only for manually deployed Kubernetes on GCE.
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Monitoring Elixir Apps on Fly.io with Prometheus and PromEx
This is new and may not be used much, but it is possible to use part of Kata with part of Firecracker. https://github.com/kata-containers/documentation/wiki/Initia...
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Docker Without Docker
If it's using firecracker, it's probably using KVM virtualization while ensuring that the memory the VM consumes is not pinned... that is, that the VM can be swapped out of memory. For reference, firecracker was created by AWS to run and secure AWS Lambda. The hypervisor is written in rust and uses seccomp to eliminate unnecessary system calls. They open sourced it a few years back.
What you gain is a stronger security boundary. Just FYI, since 2019, you can also do this in Kubernetes using Kata containers which will happily shim firecracker. The setup is not simple though.
https://github.com/kata-containers/documentation/wiki/Initia...
Overall, fly.io building infrastructure on this pattern is fantastic and making it accessible is fantastic. Looking forward to seeing how this continues to evolve and am happy to see more infra build on top of firecracker. Very exciting!
inspektor-gadget
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Running tcpdump on eks worker nodes
You can try using https://www.inspektor-gadget.io/ You can try either, top tcp, trace network-graph or trace tcp gadget. It's a CNCF sandbox project and it's kubernetes native so I think this should work.
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Is there any OSS tool out there that would translate traffic flows into NetworkPolicies?
This works really well https://github.com/inspektor-gadget/inspektor-gadget/blob/main/docs/gadgets/advise/network-policy.md
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Getting started with kubectl plugins
Link to GitHub Repository
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Isolating Kubernetes pods for debugging
Inspector gadget is a tool designed to introspect and debug Kubernetes applications using eBPF.
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What are some useful Kubernetes tools you can share?
I found this tool: https://github.com/kinvolk/inspektor-gadget great if you want to have a detailed debugging for running pods e.g all exec system calls or trace tcp connections etc.
- Inspektor Gadget
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Kubernetes Security Checklist 2021
All namespaces should have NetworkPolicy. Interactions between namespaces should be limited to NetworkPolicy following least privileges principles (Inspektor Gadget)
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How to Trace Linux System Calls in Production with Minimal Impact on Performance
The team behind traceloop has integrated it with the Inspektor Gadget project, so you can run traceloop on the K8s platform using kubectl. See the demos in Inspektor Gadget - How to use and, if you like, try it on your own.
What are some alternatives?
grype - A vulnerability scanner for container images and filesystems
syft - CLI tool and library for generating a Software Bill of Materials from container images and filesystems
kubevirt - Kubernetes Virtualization API and runtime in order to define and manage virtual machines.
falco - Cloud Native Runtime Security
simplenetes - The sns tool is used to manage the full life cycle of your Simplenetes clusters. It integrates with the Simplenetes Podcompiler project podc to compile pods.
Flatcar - Flatcar project repository for issue tracking, project documentation, etc.
oci-seccomp-bpf-hook - OCI hook to trace syscalls and generate a seccomp profile
kubesess - Kubectl plugin managing sessions
krane - Kubernetes RBAC static analysis & visualisation tool
security-profiles-operator - The Kubernetes Security Profiles Operator
cvehound - Check linux sources dump for known CVEs.
go2seccomp - Generate seccomp profiles from go binaries