Today's Quote

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Doing something always costs more than doing nothing -- P.B.

At the AWS Summit in Dubai

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Great day at the AWS Summit in Dubai. Nice refresher and networking.

Glitch or Outage?

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Do you find it difficult to understand if that spike on your service was actually a glitch or an outage?

This is what I think:

  • Less than a minute: Often considered a glitch, especially if it self-corrects quickly and has minimal impact on users.
  • 1-5 minutes: This could be a glitch or an outage depending on the factors like criticality of service, regulation etc. [To be defined]
  • More than 5 minutes: This is more likely considered a definite outage.

Now, what about a series of glitches? :P

Eid Mubarak

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While many are enjoying the Eid break, it's still a hectic time for managers, especially in Engineering, as we work to complete performance reviews before next week’s deadline. Personally, balancing these reviews with other business priorities has been challenging to say the least.

In the meantime, we're busy addressing tasks from the SAMA pre-audit, which is adding to the workload. I'm really pleased with the progress we’re making toward preparing GCP as a potential second site in KSA, and I want to acknowledge the hard work and dedication from everyone involved.

Self disposable network troubleshooting pod

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This script provides a quick way to launch a temporary network troubleshooting pod in Kubernetes, run commands interactively, and then clean it up automatically (pod is deleted when you exit the shell). Good for debugging network issues (e.g., DNS, connectivity, HTTP requests) and running ad-hoc commands in a disposable environment.

I have this aliased as 'nt'

#!/bin/bash

# Define the name of the pod
POD_NAME="nettools"

# Check if the pod exists
if kubectl get pod "$POD_NAME" -n default &> /dev/null; then
  echo "Pod $POD_NAME exists. Executing command..."
  kubectl exec -it "$POD_NAME" -n default -- /bin/bash
else
  # Create the pod
  echo "Creating pod $POD_NAME..."
  kubectl run $POD_NAME -n default --image=wbitt/network-multitool:latest --restart=Never --overrides='{"spec": {"terminationGracePeriodSeconds": 2}}' -- sleep infinity

  echo "Waiting for pod $POD_NAME to be in the 'Running' state..."
  while [[ $(kubectl get pod $POD_NAME -n default -o jsonpath='{.status.phase}') != "Running" ]]; do
      sleep 1
  done

  # Shell into the pod
  echo "Shelling into the pod $POD_NAME..."
  kubectl exec -it $POD_NAME -n default -- /bin/bash

  # Delete the pod after exiting the shell
  echo "Deleting pod $POD_NAME..."
  kubectl delete pod $POD_NAME -n default --grace-period=0 
fi