https://blog.alekc.org/tags/network-diag/Recent content in network-diag on Alekc's BlogHugo -- gohugo.io©{year}, All Rights ReservedSat, 03 Dec 2022 00:00:00 +0000https://blog.alekc.org/posts/useful-debugging-tools-for-kubernetes/Sat, 03 Dec 2022 00:00:00 +0000https://blog.alekc.org/posts/useful-debugging-tools-for-kubernetes/Sometimes its useful to be able to run some ephemeral containers on kubernetes cluster in order to perform some debugging (i.e. dns resolution, pinging nodes, etc). Sadly, most of the times, it can be tricky to remember all overrides so here is a small list Run an ephemeral shell on a random node 1kubectl run -ti --restart=Never --rm debug --image=alekcander/network-diag -- sh Run a container with specific service account 1kubectl run -ti --restart=Never --rm debug --image=alekcander/network-diag --overrides='{ "spec": { "serviceAccount": "terraform-runner" } }' -- sh Run on a specific node 1kubectl run -ti --restart=Never --rm debug --image=alekcander/network-diag --overrides='{"spec": { "nodeName": "alekc-worker-01"}}' -- sh Run based on specific selector (ie.