What gives? This deployment spec has worked reliably time and time again with no business failing to pull the image. I can only guess that Docker Hub is down (unlikely) and had two options to choose from: 1) re-build the image from source, or 2) Use a backup environment to show the end state. In order to keep on topic within the given time period, I decided to go with option #2 to at least showcase Istio Ingress at its best. After the webinar I decided to go back and take a look at the environment; and lo and behold, this is what I found!
And when I did a quick search of Docker Hub Status later, this is what I discovered:As if by magic Docker Hub has decided to stop working within the exact time period of the Live Webinar. I learned a few things from this event:
Don’t rely on a public repository / link for your demos
Failures occur where you least expect them to
Always prepare a backup
So that being said, I present to you all in the video below, how I originally envisioned the demo for this session:I hope you enjoyed the live session regardless, and if you didn’t attend, I'm sorry you missed out on all the fun. Here’s hoping for a more successful demo next time!
Andrew Lee is a Technical Instructor at Mirantis. To learn about Cloud Native Training and Certification programs offered by Mirantis, please take a look at our <a href="https://training.mirantis.com/courses/?technology=22&type=ALL&skill=ALL">Course Catalog</a>.