OpenShift Troubleshooting Templates

A collection of various templates that can be used for troubleshooting different issues for OpenShift clusters

Network Troubleshooting with netcat

If you need to test network connectivity to an endpoint device, nc (or netcat) is a handy troubleshooting tool. It's included in the default busybox image, and provides quick and clear output if a connection can be made

# Create a throw-away pod with busybox; cleans up after itself
$ oc run netcat-test --image=busybox -i -t --restart=Never --rm -- /bin/sh

# Successful connection
/ nc -zvv 192.168.1.1 8080
10.181.3.180 (10.181.3.180:8080) open
sent 0, rcvd 0

# Failed connection
/ nc -zvv 192.168.1.2 8080
nc: 10.181.3.180 (10.181.3.180:8081): Connection refused
sent 0, rcvd 0

# Exit the container, which will automatically delete the pod
/ exit

Gather unique Google OAuth IDs

Access directly at https://google-oauth-userid-lookup.6923.rh-us-east-1.openshiftapps.com/

More details.