Victor Yang pydevops

Helm cheatsheet

Helm cheatsheet
- Get started
- Struture
- General Usage
- Template
- Hooks

Create a secrets file:

touch ~/.secret

Make sure it looks like this:

#!/bin/bash

Some useful resources regarding Kubernetes Operators, CRDs, etc.

Kubernetes sample controller: https://github.com/kubernetes/sample-controller
Joe Beda's TGIK sample repo and YouTube videos: https://github.com/jbeda/tgik-controller
Thomas Stringer's blog post: https://medium.com/@trstringer/create-kubernetes-controllers-for-core-and-custom-resources-62fc35ad64a3
Kube-controller-demo by Aaron Levy: https://github.com/aaronlevy/kube-controller-demo
Analyzing value of Operator Framework for Kubernetes community: https://itnext.io/analyzing-value-of-operator-framework-for-kubernetes-community-5a65abc259ec
Steps to generate CRD/Operator code: cloud-ark/kubeplus#14
kubebuilder: https://github.com/kubernetes-sigs/kubebuilder
CoreOS operator framework: https://coreos.com/blog/introducing-operator-framework

In case there's already a DHCP config for netplan for the private IP address:

File: /etc/netplan/50-cloud-init.yaml

Contents:

# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:

Introduction

Starting at a new employer always mean checking out various git repositories.

As the amount of repositories a company has grows, the time needed to clone all of those repositories also grows.

This script automates this task.

In order for this script to work, a personal access token is needed.

SQL vs NOSQL

SQL: relational, NOSQL: non relational
SQL: universal but defined schema
NoSQL: unstructured dynamic schema
SQL is vertically scalable, increased resources of one machine
NoSQL is horizontally scalable, increase number of machines
NoSQL can become larger and more powerful
NoSQL does not require a DBA (Database Administrator)
- flexible and high performing

	#!/bin/bash

	#1) on https://console.developers.google.com/ register project and associate API from library
	# OUTPUT: client_id,client_secret
	client_id="..."
	client_secret="...."

	#2) get authorization code at the following link using web browser
	# OUTPUT: code
	scope="https://www.googleapis.com/auth/drive"

	https://cloud.google.com/storage/docs/encryption/

	BUCKET_NAME=YOUR_NAME_enron_corpus
	gsutil mb gs://${BUCKET_NAME}

	gsutil cp gs://enron_corpus/allen-p/inbox/1. .
	tail 1.

	Enable API/Create keyring
	gcloud services enable cloudkms.googleapis.com

	#!/usr/bin/env bash
	set -e
	for full_name in $(kubectl get all -o name \| grep -vE replicaset\\|pod); do
	name="$(echo "$full_name" \| sed -e "s/.*\///g")";
	type="$(echo "$full_name" \| sed -e "s/\/.*//g")";
	case "${type}" in
	deployment*)
	type=Deployment
	;;
	"service")

	---

	- name: Update the `apt` package index
	apt:
	update_cache: yes

	- name: Install packages to allow apt to use a repository over HTTPS
	package:
	name: "{{ item }}"
	state: latest