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alias cls='clear'
alias pag='ps aux | grep'
alias nreload='sudo servince nginx reload'
alias nstop='sudo service nginx stop'
alias nstart='sudo servince nginx start'
alias nrestart='sudo service nginx restart'
alias ebe='ember build --environment='
alias chmodx='sudo chmod +x'
alias epreprod='RAILS_ENV=pre_prod'
alias eprod='RAILS_ENV=production'

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Types of user:

1. Root User - It is the super user which can run any command generally used for administration.
2. System User - Users needed for system specific operation/components, like mysql user to run mysql.
3. Normal User - Other users which are created by root and have limited access given to them.

Attributes:

1. User Type: Super user
2. User Name: root

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How To Reset "root" User Password In MySQL

Following are the set of commands to be run to reset root user password:

# 1. Stop mysql process
> sudo service mysqld stop

# 2. Change user to mysql & run mysql process using --skip-grant-tables option
> sudo su - mysql

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console.log('Loading event');
var AWS = require('aws-sdk');
var dynamodb = new AWS.DynamoDB();

exports.handler = function(event, context) {
    console.log("Request received:\n", JSON.stringify(event));
    console.log("Context received:\n", JSON.stringify(context));

    var tableName = "myinfo";
    var datetime = new Date().getTime().toString();

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DevOps

Kubernetes

• https://kumorilabs.com/blog/k8s-0-introduction-blog-series-kubernetes/
• https://www.linux.com/blog/learn/chapter/Intro-to-Kubernetes/2017/5/set-cicd-pipeline-kubernetes-part-1-overview

Docker

• https://medium.com/bettercode/how-to-build-a-modern-ci-cd-pipeline-5faa01891a5b

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DOCKER_SOCKET=/var/run/docker.sock
DOCKER_GROUP=docker
JENKINS_USER=jenkins

if [ -S ${DOCKER_SOCKET} ]; then
DOCKER_GID=$(stat -c '%g' ${DOCKER_SOCKET})
sudo groupadd -for -g ${DOCKER_GID} ${DOCKER_GROUP}
sudo usermod -aG ${DOCKER_GROUP} ${JENKINS_USER}
fi

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#!/bin/bash

echo "Updates packages"
sudo apt-get update -y

echo "Installing packages"
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev nodejs -y

echo "Installs RVM (Ruby Version Manager) for handling Ruby installation"
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3

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#!/bin/bash

###
# This is the first part which can be used to prepare base-image
###

# output log of userdata to /var/log/user-data.log
exec > >(tee /var/log/user-data.log|logger -t user-data -s 2>/dev/console) 2>&1

# Install awscli

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apiVersion: v1
kind: ServiceAccount
metadata:
  name: fluentd-es
  namespace: default
  labels:
    k8s-app: fluentd-es
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
---

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kind: ConfigMap
apiVersion: v1
metadata:
  name: fluentd-es-config-v0.1.5
  namespace: default
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
data:
  system.conf: |-
    <system>