Application Load Balancer

 First we need to create VPC


After adding name to VPC and IPV4 CIDR, click create VPC


VPC is now created. 

Now we are going to create 4 subnets under this VPC

Under Subnet --> Create Subnet

Choose the VPC which we have created




2 Public Subnet and 2 Private Subnet is created in different locations

Click create Subnet



Subnet has been created

After this, internet gateway should be created

Under Internet Gateway --> Create Internet Gateway





Specify the name of internet gateway and click create internet gateway

Internet Gateway is created. After this Click Actions --> Attach to VPC

Select the VPC which we have created and click attach internet gateway

Next Under NAT Gateway --> Create NAT Gateway




Enter name of gateway, Select subnet as PubSub1 --> Click Allocate Elastic IP --> Create NAT Gateway

Under route table, Click the route table id which we have created now -- > Click Edit routes




Click save changes. Under subnet association --> Click Edit Subnet Association

Select the two public subnet --> Save association



Under Route table --> Create route table



Create route table. Click Edit route


Click Save changes

Under Subnet Association --> Edit Subnet Association 

Select the private subnet --> Click save association


Under Services --> EC2 --> Instances --> Launch instances




Click Launch instance

Now create instance 2

The only difference is we need to create it with private subnet 2

Click Launch instance

Under target group --> create target group



Under Load Balancer --> Create Load Balancer --> Application Load Balancer 






Click create security group

After this click create load balancer

Under Security group --> Click VM Security group (InstanceSG) --> Actions --> Edit inbound rules 

 Click Save rules



Now our Load Balancer is healthy

Under Load Balancer, copy Dns Name and copy it, paste the link


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