pydevops

yum

• https://access.redhat.com/sites/default/files/attachments/rh_yum_cheatsheet_1214_jcs_print-1.pdf
• https://gist.github.com/tlatsas/5916790

sudo yum --enablerepo=rpmforge install tmux

yum clean all
yum info yum-plugin-versionlock

• rpm

pydevops

• apt-get install libmemcached-tools
• memcstat --servers=203.0.113.12 11211 | grep get_hits

get version

memcstat --servers=10.2.0.4 | grep version

dump keys

memcdump --servers=localhost

dump value given a key

pydevops

localhost:9200/_cat/indices?pretty

basic concept

• https://www.elastic.co/blog/found-elasticsearch-from-the-bottom-up
• https://www.elastic.co/blog/found-sizing-elasticsearch
• shard: https://aws.amazon.com/blogs/database/get-started-with-amazon-elasticsearch-service-how-many-shards-do-i-need/
• https://www.codementor.io/ashish1dev/getting-started-with-elasticsearch-du107nett

pydevops

• 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

pydevops

references

• https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands
• how it works
• https://medium.com/@bingolbalihasan/how-does-kubectl-work-writing-custom-kubectl-commands-da86e5d49c74

cheatsheet & tips

• https://kubernetes.io/docs/user-guide/kubectl-cheatsheet/
• https://github.com/devoriales/kubectl-cheatsheet
• https://learncloudnative.com/blog/2022-05-10-kubectl-tips
• https://itnext.io/tips-tricks-for-cka-ckad-and-cks-exams-cc9dade1f76d

pydevops

• Good luck to everyone taking this exam!
• Skimmed through documents mentioned in https://medium.com/@earlg3/google-cloud-architect-exam-study-materials-5ab327b62bc8
• It is a good idea to take the practice exam https://cloud.google.com/certification/practice-exam/cloud-architect. It will give a taste of what the real exam feel like in a lighter fashion. There are right answers given after the exam. I found it is worth the time.
• If you have more time, might be a good idea to watch the Google Cloud Next 2017: https://www.youtube.com/playlist?list=PLIivdWyY5sqI8RuUibiH8sMb1ExIw0lAR
• IMHO Comparing to the AWS certification exams, it feels like harder than the associate exams but easier than the professional level exams. AWS exams have been designed to have more matching answers, it is a matter to choose what matches most.
• Case studies: All the case studies except JencoMart are on my exam. Dress4win got 6 or 7. Please note I have found some question is very generic, not entirely related to the case study

pydevops

MAKESELFPATH=/opt/makeself

PAYLOADFOLDER=$(readlink -e $1)
OUTPUTFILENAME=$(pwd)/$2
LABEL=$3
INSTALLER=$(readlink -e $4)

cd $MAKESELFPATH
echo "Executing: sh makeself.sh $PAYLOADFOLDER $OUTPUTFILENAME $LABEL $INSTALLER"
sh makeself.sh $PAYLOADFOLDER $OUTPUTFILENAME $LABEL $INSTALLER

pydevops

#! /usr/bin/env bash
set -u

# constants
PROJECT=$(gcloud info --format='value(config.project)')
LOCKS_BUCKET=$PROJECT-db2-locks
# how long do we wait for lock or condition
SLEEP=5

# Check if a lock file exists

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"