Welcome back to our AWS EC2 adventure! Today, we are diving into the exciting world of Load Balancing โ a crucial concept for optimizing performance and ensuring reliability in large-scale computing systems. Buckle up as we explore the fascinating realm of Elastic Load Balancing (ELB) on Amazon Web Services (AWS) and set up an Application Load Balancer (ALB) with two EC2 instances.
Load Balancing Unveiled ๐
Load balancing is like having a superhero for your servers. It intelligently distributes workloads across multiple servers, ensuring they all pull their weight and preventing one from feeling overwhelmed. This not only boosts performance but also enhances the reliability of your applications โ a must for any serious cloud architect.
Meet Elastic Load Balancing (ELB) ๐ค
AWS offers Elastic Load Balancing, a service that takes the heavy lifting out of distributing incoming traffic. ELB provides three types of load balancers, each with its unique superpowers:
Application Load Balancer (ALB) ๐: Operates at layer 7 of the OSI model, making it perfect for applications requiring advanced routing and microservices.
Network Load Balancer (NLB) ๐: Works at layer 4 and is ideal for applications needing high throughput and low latency.
Classic Load Balancer (CLB) ๐๏ธโโ๏ธ: Also operates at layer 4, great for applications with more straightforward load balancing needs.
Today, we're putting our focus on the superhero of the day โ the Application Load Balancer (ALB).
๐ฏ Today's Tasks:
Task 1: Launching and Personalizing EC2 Instances ๐
Launch 2 EC2 instances:
Use an Ubuntu AMI.
Employ User Data to install the Apache Web Server.
Personalize your Apache server:
Modify the index.html file on the first instance to include your name.
On the second instance, make it shout: "I am Davender, graduate student of seneca college :)"
Get your hands dirty:
Copy the public IP addresses of your EC2 instances.
Open a web browser, paste the public IP addresses, and revel in the glory of your personalized webpages.
Task 2: Creating an Application Load Balancer (ALB) ๐
Navigate to the AWS Management Console:
- Go to the EC2 Dashboard and select "Load Balancers."
Create an Application Load Balancer (ALB):
Choose ALB as the load balancer type.
Configure security settings.
Add EC2 instances to the ALB as target groups:
Select the target instances from Task 1.
Ensure the ALB knows which servers to juggle.
Verify the ALB's prowess:
Check the health status of your target instances.
Test the load balancing capabilities by hitting that ALB URL in your browser.
Voila! You've successfully set up an Application Load Balancer with EC2 instances, spreading the workload evenly like a pro. Give yourself a pat on the back โ you're now a Load Balancing maestro! ๐
Stay tuned for more AWS adventures, and keep soaring in the cloud! โโจ
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