gtarun

Kafka

Video Link: Apache Kafka Crash Course | What is Kafka?

Prerequisite

• Knowledge
  • Node.JS Intermediate level
  • Experience with designing distributed systems
• Tools
  • Node.js: Download Node.JS
  • Docker: Download Docker
  • VsCode: Download VSCode

gtarun

const TOKEN_SECRET="7bc78545b1a3923cc1e1e19523fd5c3f20b409509";
const jwt = require("jsonwebtoken");
const request = require("request");
let usernam = "gtarun";

let token = jwt.sign(username, TOKEN_SECRET, { expiresIn: '1800s' });


// Make an HTTP POST request 

gtarun

sudo apt-get install libapache2-mod-evasive
# edit Config 
sudo nano /etc/apache2/mods-available/evasive.conf
sudo mkdir /var/log/mod_evasive
sudo chown :www-data /var/log/mod_evasive
sudo chmod 771 /var/log/mod_evasive



a2enmod evasive

gtarun

# Redis configuration file example.
#
# Note that in order to read the configuration file, Redis must be
# started with the file path as first argument:
#
# ./redis-server /path/to/redis.conf

# Note on units: when memory size is needed, it is possible to specify
# it in the usual form of 1k 5GB 4M and so forth:
#

gtarun

How To Set Up a Node.js Application for Production on Ubuntu 16.04

with PM2 & Nginx

Create User

as a root, run below commands on server:

# adduser tomy

gtarun

FYI much quicker to set them all in one heroku config:set a=b c=d etc

If you prefer a manual review and you do have bash/zsh:

heroku config -s -a source-heroku-app > config.txt

Now review config.txt and remove any unwanted config lines

cat config.txt | tr '\n' ' ' | xargs heroku config:set -a target-heroku-app

gtarun

Deploy nodejs app with gitlab.com and pm2

This manual is about setting up an automatic deploy workflow using nodejs, PM2, nginx and GitLab CI. It is tested on:

• Target server: Ubuntu 16.04 x64. This is suitable for Ubuntu 14.x.
• Windows 10 on my PC to work.

gtarun

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#

gtarun

 http {
    proxy_cache_path  /var/cache/nginx levels=1:2 keys_zone=one:8m max_size=3000m inactive=600m;
    proxy_temp_path /var/tmp;
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;

    gzip on;
    gzip_comp_level 6;

gtarun

swagger: "2.0"
info:
  version: v1
  title: Outgrow Public API
host: api.outgrow.co
basePath: /api/v1
schemes:
- https
- http
consumes: