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net-debug

Description

Assorted network debugging goodies, like tcpdump, socat/websocat, iperf, nmap, nslookup, dig, tcpreplay, and ping/traceroute, all packaged in a self-contained Docker image. The intended use is to sideload the container as a sidecar to Kubernetes pods in order to debug network reachability and performance issues.

Usage example

This Deployment starts a net-debug pod in host network:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: net-debug
spec:
  selector:
    matchLabels:
      app: net-debug
  replicas: 1
  template:
    metadata:
      labels:
        app: net-debug
    spec:
      hostNetwork: true
      containers:
      - name: net-debug
        image: docker.io/l7mp/net-debug

Help

Development is coordinated in Discord, feel free to join.

License

MIT License - see LICENSE for full text.

net-debug's People

Contributors

levaitamas avatar

Watchers

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net-debug's Issues

Rebase to Alpine

The current image size is ~200 MB. The image is based on debian:stable-slim. A straightforward way to reduce size is to rebase to alpine.

Originally proposed in #1.

this and that

In the Dockerfile:

  • iproute2 is listed twice in the apt-get command
  • wouldn't starting from alpine result in a smaller size?
  • I'd like to see 'bmon' added. I use it from time to time. It's small, simple, and mostly works.

Can you create an automated release process that puts an image into a docker repository? so we could 'docker pull l7mp/net-debug:latest' or something similar.

Thanks a million

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