DevOps Classroomnotes 06/May/2023

Applications we will be observing

• Traditional Applications: These are the applications which run on physical or virtual machines hosted on-premises or cloud
• Containerized Applications: These will be the applications running on kubernetes cluster.
• Technology:
  • Python
  • .net
  • C#
  • nodejs
• Approach:
  • We will be getting info in the following order
    • metrics
    • logs
    • traces
  • What is Site Reliability Engineering?

Traditional Applications

• I will be sharing some scripts when necessary
• Lets choose the same applications for both traditional and k8s

Lab Setup

• Cloud Account (AWS/Azure)
• Elastic Cloud (14 day free trail)
• How to create VMs?

Options

• Ecommerce
  • shopizer (java)
  • nopCommerce (.net)
  • Saleor (python)
  • Sprut Commerce (nodejs)
• Medical Record System/Hospital managment system
  • Open Mrs (java)
  • Bahmni (java)
  • hospital run (node js)

NOP Commerce

• To install this application we need atleast two servers
  • database server: (Linux/Windows)
    • mysql
    • microsoft sql server
    • postgres
  • application/web server: (Linux/Windows)
    • dotnet core
    • nginx
• Our setup:
  • 2 ubuntu Linux servers
• Metrics:
  • Server Metrics
    • cpu
    • memory
    • disk
    • network
  • Application metrics
    • Requests
    • Errors
    • Response time
• Installation
  • Manual
  • Automated