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• 0.1. References
• 0.2. Other cheatsheets
• 0.3. Manage multiple gcloud config configurations
  • 0.3.1. Switch gcloud context with gcloud config
• 0.4. Credentials
• 0.5. info
• 0.6. projects
• 0.7. zones & regions
• 0.8. Organization
• 0.9. billing

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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
• A thread on Reddit: https://www.reddit.com/r/kubernetes/comments/8ien90/if_i_were_to_build_an_operator_what_should_i_use/

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Reference

• https://www.linuxtrainingacademy.com/systemd-cheat-sheet/
• https://www.linux.com/training-tutorials/understanding-and-using-systemd/
• https://www.digitalocean.com/community/tutorials/how-to-use-systemctl-to-manage-systemd-services-and-units
• https://www.digitalocean.com/community/tutorials/systemd-essentials-working-with-services-units-and-the-journal
• https://www.youtube.com/watch?v=ZUX9Fx8Rwzg&index=9&list=PLCq0ZVVxGP0Y-xlum2pnhqwsrIf61J6Ka
• https://www.youtube.com/watch?v=AtEqbYTLHfs

show service unit file

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#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
    # to have these messages end up in /var/log/haproxy.log you will
    # need to:
    #
    # 1) configure syslog to accept network log events.  This is done
    #    by adding the '-r' option to the SYSLOGD_OPTIONS in
    #    /etc/sysconfig/syslog

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#!/bin/bash
# Based on kizbitz/dockerhub-v2-api-organization.sh at https://gist.github.com/kizbitz/175be06d0fbbb39bc9bfa6c0cb0d4721

# Example for the Docker Hub V2 API
# Returns all images and tags associated with a Docker Hub organization account.
# Requires 'jq': https://stedolan.github.io/jq/

# set username, password, and organization
UNAME=""
UPASS=""

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Python 3 and compatibility with Python 2
from __future__ import unicode_literals, print_function	

import os
import sys
import re
import logging

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#!/usr/bin/env bash

set -euo pipefail
IFS=$'\n\t'

readonly _CISCO_VPN="/opt/cisco/anyconnect/bin/vpn"
readonly _GREEN='\033[0;32m'
readonly _RED='\033[0;31m'
readonly _NC='\033[0m'

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Application Instance Identity and Intro to Envoy in PCF

(the content below is heavily borrowed from Eric Malm's blog post on application identity and Aaron Hurley's CFSummit talk on upcoming changes to routing tier in CF)

• Application Instance Identity and Intro to Envoy in PCF
  • Timeline :
    • PCF 1.12 - Enabled Application Instance Identity
• PCF 2.0 - Secure Service-Instance Credential Delivery

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# Install compile requirements
pacman -S gcc make

# Install lib requirements for ncid
pacman -S libpcap

# Download
curl http://heanet.dl.sourceforge.net/project/ncid/ncid/1.2/ncid-1.2-src.tar.gz -o ncid-1.2-src.tar.gz

# Compile

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#!/bin/bash
# Create client for OpenVPN using easy-rsa
# create p12 certificate

PREFIX=lu
BASE_DIR="/etc/openvpn"
DEST_DIR="$BASE_DIR/clients"
EASY_DIR="$BASE_DIR/easy-rsa"

if [ "$#" -ne 1 ]; then