Azure Classroom Series – 18/Dec/2021

Monitoring a N-tier Web Application on Azure

• Let consider the following architecture
• After creating these architecture we will try to create the monitoring setup
• Lets create this architecture
  • We need to Create Virtual Network
  • Quick understanding of cidr

  192.168.0.0/16 
  
    x.x.x.x/n
  
    192.168.0.0/16 => 192.168.x.x => 32-16 => 16 bits for ip address
                    => 2^16 => numbers of devices that can be connected
  
    10.0.0.0/8 => 10.x.x.x => 32-8 => 24 => 2^24 
  
    10.0.0.0/24 => 10.0.0.x => 32-24 => 2^8 
  
  
    10.0.0.0 =>
  
    192.168.0.x 
  
    192.168.0.0/16 => Smaller networks
        192.168.0.x/24
        192.168.1.x/24
    .......................
    192.168.255.x/24
  

  • Creating a Virtual Network
  • Lets create a Windows VM in the Business Tier Subnet
  • Lets create a Linux VM in the Web Tier Subnet
• Exploring Basic Monitoring Available for Windows and Linux VMs
  • Windows VM:
  • Linux VM: Almost similar
• Lets create two alert rules
  • When your virtual machine has excessive cpu usage
    • Lets assume Percentage CPU > 85 for last 5 minutes => excessive usage
  • When your virtual machine has low cpu usage
    • Lets assume Percentage CPU < 10 for last 5 minutes => low cpu usage
  • Navigate to Montior => Alerts and Create
  • After you create alerts wait for the alert to happen, once the alert is triggered you would see the alert information in the alerts section and also recieve an email