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Understanding Kubernetes in 10 minutes

Original document can be found here; written by Mike Schuette.

This document provides a rapid-fire overview of Kubernetes concepts, vocabulary, and operations. The target audience is anyone who runs applications in a cloud environment today, and who wants to understand the basic mechanics of a Kubernetes cluster. The goal is that within 10 minutes, managers who read this should be able to listen in on a Kubernetes conversation and follow along at a high level, and engineers should be ready to deploy a sample app to a toy cluster of their own.

This orientation doc was written because the official Kubernetes docs are a great reference, but they present a small cliff to climb for newcomers.

If you want to understand why you should consider running Kubernetes, see the official Kubernetes conceptual overview document. This doc

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Hiring guide

Taken from Medium. I wanted a compact version with all the pieces together, assembled here for my own use. Abridged in some places.

Table of Contents

• What we screen for
  • Ability to build software
  • Ability to learn and teach
  • Alignment with our values
• What we don’t screen for
• Grading rubric

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Noteworthy

1. I have device protection through Google Fi and a phone which is under warranty.
2. The Pixel 5a I have is from a subscription through Google Fi.
3. The phone is only 9 months old.
4. The phone has repeatedly turned off on its own (crash) since the first few weeks, but the hassle of getting a new one prevented me from doing anything about it. I guess I should be less lazy. It has always turned back on.
5. The phone was slow and acted buggy at times. Reboots sometimes fixed it, but sometimes not. I chalked this up to the Android Operating System being bad, but looking back I now realize it was probably hardware.
6. I have been using Google software for 20+ years, Google, Gmail, Maps, Chrome, Drive, Photos, Google+, Youtube, etc. a. I pay for youtube premium and google one.

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Credit Card Regex

• Amex Card: ^3[47][0-9]{13}$
• BCGlobal: ^(6541|6556)[0-9]{12}$
• Carte Blanche Card: ^389[0-9]{11}$
• Diners Club Card: ^3(?:0[0-5]|[68][0-9])[0-9]{11}$
• Discover Card: ^65[4-9][0-9]{13}|64[4-9][0-9]{13}|6011[0-9]{12}|(622(?:12[6-9]|1[3-9][0-9]|[2-8][0-9][0-9]|9[01][0-9]|92[0-5])[0-9]{10})$
• Insta Payment Card: ^63[7-9][0-9]{13}$
• JCB Card: ^(?:2131|1800|35\d{3})\d{11}$
• KoreanLocalCard: ^9[0-9]{15}$

ckelner

Datadog and Ansible Tower

This doc explains the nuances of using the Datadog Ansible Integration with Ansible Tower.

Ansible Setup

In a directory of your choosing, run the following commands:

• vagrant init ansible/tower
• vagrant up --provider virtualbox
• vagrant ssh

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Sonarqube

This was a quick hack to get Datadog Java/JMX monitoring working with Sonar.

Prerequisites

• Install docker

Run

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https://github.com/TheWeatherCompany/grid-console/issues/174
https://github.com/TheWeatherCompany/grid-console/pull/180
https://github.com/TheWeatherCompany/grid-api/issues/405
https://github.com/TheWeatherCompany/grid-api/issues/408
https://github.com/TheWeatherCompany/grid-api/issues/410

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Datadog: 1 MySQL reported by 2 hosts

• Run MySQL via Docker:

  docker run -p 3306:3306 --name kelnerhax-mysql -e MYSQL_ROOT_PASSWORD=<password> -d mysql:latest
  

• docker inspect <container-name> to get the container ip from `NetworkSettings.IPAddress"
• docker exec -it <container-name> /bin/bash to get on the docker container
• Follow https://docs.datadoghq.com/integrations/mysql/#prepare-mysql
  • mysql -u root --password=<password>

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Near the office:
http://www.bonesrestaurant.com/ $$$$
http://www.kinganddukeatl.com/ $$
http://www.thesoutherngentlemanatl.com/ $$

Venturing a bit further away from the office:
http://capedutchrestaurant.com/ $$
https://www.holeman-finch.com/ $$

And even further away:

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Monitor how many more api calls your git token has

Queries a Github Api rate_limit to find out how close you are to hitting your rate limit. Great for build servers when your not sure why something broke.

Use to create graphs like: or you can display multiple values on a single graph:

Install

Plugins come with a YAML file and a python file. The YAML file is the