jonaskahn

The “if” statement

• Ex 1:

let year = prompt('In which year was the ECMAScript-2015 specification published?', '');

if (year == 2015) {
  alert( 'You guessed it right!' );
} else {
 alert( 'How can you be so wrong?' ); // any value except 2015

jonaskahn

Let & const

let and const are the block scoped

A block is a chunk of code bounded by {}. A block lives in curly braces. Anything within curly braces is a block.

• Ex1:

let greeter = "hey hi";

if (1) {

jonaskahn

VAR

Scope essentially means where these variables are available for use. var declarations are globally scoped or function/locally scoped.

• Ex1

var greeter = "hey hi";

if (1) {
    var hello = "hello";
    console.log(hello);
    console.log(greeter);

jonaskahn

function exportData() {
    const table = $('.table').children("div")
    for (let i = 1; i < table.length; i++) {
        const rowData = table[i].childNodes
        let rank = '';
        let name = ''
        let country = ''
        for (let j = 0; j < rowData[0].childNodes.length; j++) {
            const data = rowData[0].childNodes[j]
            if ($(data).hasClass('rank')) {

jonaskahn

Generate ssl certificates with Subject Alt Names on OSX

Open ssl.conf in a text editor.

Edit the domain(s) listed under the [alt_names] section so that they match the local domain name you want to use for your project, e.g.

DNS.1   = my-project.dev

Additional FQDNs can be added if required:

jonaskahn

#! /bin/bash
sudo apt-get install -yq dnsmasq
sudo systemctl disable systemd-resolved.service
echo "DNSStubListener=no" | sudo tee --append /etc/systemd/resolved.conf
sudo systemctl restart systemd-resolved
sudo rm /etc/resolv.conf
echo "nameserver 127.0.0.1" | sudo tee /etc/resolv.conf
echo "nameserver 8.8.8.8" | sudo tee -a /etc/resolv.conf
echo '
port=53

jonaskahn

Practice Consul, Nomad in Production Part 2 - Setup DNS and Make Basic Jobs

Complete the 1st part before you go on SET UP CLUSTER

DEPLOY TRAEFIK

1. Create service Policy

cd ~ &&  echo "

jonaskahn

Practice Consul, Nomad in Production Part 1- Setup Cluster

This cluster will be set up for 3 servers, each server will run (Nomad server/client + Consul server/client)

Follow my new instruction here

jonaskahn

#!/bin/bash
sudo apt install -y unzip zip 
export CONSUL_VERSION=1.13.4
printf "Download & install consul ${CONSUL_VERSION}\n"
export CONSUL_URL="https://releases.hashicorp.com/consul"
curl --silent --remote-name \
  ${CONSUL_URL}/${CONSUL_VERSION}/consul_${CONSUL_VERSION}_linux_amd64.zip
unzip consul_${CONSUL_VERSION}_linux_amd64.zip
sudo chown root:root consul
sudo mv consul /usr/bin/

jonaskahn

#! /bin/bash
sudo apt install -y unzip zip 
export NOMAD_VERSION=1.4.3
printf "Download & install nomad v${NOMAD_VERSION}\n"
curl --silent --remote-name https://releases.hashicorp.com/nomad/${NOMAD_VERSION}/nomad_${NOMAD_VERSION}_linux_amd64.zip
unzip nomad_${NOMAD_VERSION}_linux_amd64.zip
sudo chown root:root nomad
sudo mv nomad /usr/local/bin/
nomad version
nomad -autocomplete-install