pydevops

(still a work-in-progress)

Shortlinks:

• Cluster Health
  • Index Level
  • Shard Level
• Nodes Overview
• Indices Overview
• Cluster Maintenance

pydevops

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"os"

	flatten "github.com/jeremywohl/flatten"

pydevops

#!/bin/bash

SRC_DIR=$HOME/Desktop
DEST_DIR=$HOME/man

mkdir -p $DEST_DIR
for mdfile in ${SRC_DIR}/*.md
do
  filename=${mdfile##*/}
  basename=${filename%.md}

pydevops

#!/usr/bin/env python
from __future__ import print_function
import json
import sys
import requests
import getpass


'''
Given the bitbucket.org user id,

pydevops

GKE ingress in a nutshell

• https://medium.com/google-cloud/ingress-in-google-kubernetes-products-f22ded21f4ed

Solution #1 (ManagedCertificate CRD in GKE)

• GKE with Google-managed SSL certificates
  • Use ManagedCertificate CRD to create a object.
  • Associate the ManagedCertificate object to an Ingress by adding an annotation networking.gke.io/managed-certificates to the Ingress. This annotation is a comma-separated list of ManagedCertificate resources, cert1,cert2,cert3 for example.

Solution #2 (Google Cloud SSL Certificate)

Assumption

pydevops

Steps

1. git clone https://github.com/pydevops/quickstart-js.git on your laptop.
2. Insert the corresponding firebase web app config copied from firebase web console in storage/index.html
3. Set up for development and deploy

$ brew install node # install node if you haven't
$ npm install -g firebase-tools
$ cd storage
$ firebase login

pydevops

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/

pydevops

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

pydevops

main.py

import config
globals().update(config.constants())
print(PI)

config.py

def constants():
 c={'PI':'3.14'}

pydevops

"VBoxManage" command is different from "sudo VBoxManage" command

VBoxManage --version

sudo apt-get dist-upgrade -y -> Debian-based linux makes sure VirtualBox Guest Additions is installed

VBoxManage list runningvms -> Find running vm to box
vagrant package --base xxxxx_1522057296984_52705 --output ubuntu1604.box --> Package running vm as vagrant box

# Download an ISO image of VirtualBox Guest Additions