stevenolen/nc

A docker image for netcat. Built on alpine (for the smallz) but also has proper dns support (for the kubernetes).

Usage

$ docker run --rm -t stevenolen/nc -vz example.com 80   # also available from ghcr.io/stevenolen/nc
Connection to example.com 80 port [tcp/http] succeeded!

Extra Credit: A kubernetes reverse proxy.

Spec

apiVersion: v1
kind: Pod
metadata:
  name: example-com-proxy
  namespace: default
spec:
  restartPolicy: Never
  terminationGracePeriodSeconds: 5
  containers:
    - name: proxy
      image: stevenolen/nc
      imagePullPolicy: Always
      command: ['/bin/sh']
      args:
        - "-c"
        - "mkfifo /tmp/fifo && nc -kl 8888 < /tmp/fifo | nc example.com 80 > /tmp/fifo"

Make requests ✨

$ kubectl port-foward example-pod-proxy 8888:8888 &
$ curl localhost:8888  # example.com content returned. hey! please be kind and don't actually use example.com.