learn-backend

Register System Service (on Ubuntu 18.04)

How to register program as as a service on ubuntu 18.04

Environment

• Ubuntu 18.04 (on AWS)

Step 1: Write Shell Script

How to Install Java (on Ubuntu 18.04)

how to install java on ubuntu 18.04

Versions

• OpenJDK 11
• OpenJDK 8
• Orable Java

How to Select Version?

Test: Kinds of Programming Tests

End-To-End Test, Integration Test, Unit Test

Related Concepts

• Test Automation
• TDD: Test Driven Development
• IAC: Infrastructure As Code

DB/MySQL: Users Accounts

Create, Grant, Drop

Create, Grant

Create Users Accounts

Grant

Delete(drop)

Linux/Ubuntu 18.04: Handling Users Show List / Add / Delete / Update / Switch

My Env

• Linux Ubuntu 18.04 LTS on AWS EC2 (None GUI)

Verifying User on Terminal

whoami
# <User Name>

Nginx 6: w/ Python and uWSGI

Before this work

• Set Python Env
• Set Flask Env (or Django, etc)
• Set uWSGI w/ Python (Flask, Django or etc)

Connect Nginx w/ uWSGI

CGI, FastCGI, SCGI and WSGI

Background of CGI

• Only Static Contents -> Dynamic Contents
• Web server needs to communicate with Web application

CGI

• Common Gateway Interface

Nginx 5: Nginx w/ Web Application

Nginx Offers …

• FastCGI Modules
• uWSGI Modules
• SCGI Modules

Configuration Commands

• Set under ‘http-server’

Nginx 4: Blue-Green Deploy (Non-Stop Deploy)

Mechanism

1. Change executable file: /usr/local/nginx/sbin/nginx
2. Get PID of Nginx Master Process

# reference
ps x | grep nginx | grep master