36 lines
1.4 KiB
Markdown
36 lines
1.4 KiB
Markdown
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## AWS ELB - Application Load Balancer
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### Requirements
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Two EC2 instances with a simple web application that shows the web page with the string "Hey, it's a me, `<HOSTNAME>`!"
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### Objectives
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1. Create an application load balancer for the two instances you have, with the following properties
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1. healthy threshold: 3
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2. unhealthy threshold: 3
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3. interval: 10 seconds
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2. Verify load balancer is working (= you get reply from both instances at different times)
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### Solution
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#### Console
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1. Go to EC2 service
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2. Click in the left side menu on "Load balancers" under "Load balancing"
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3. Click on "Create load balancer"
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4. Choose "Application Load Balancer"
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5. Insert a name for the LB
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6. Choose an AZ where you want the LB to operate
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7. Choose a security group
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8. Under "Listeners and routing" click on "Create target group" and choose "Instances"
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1. Provide a name for the target group
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2. Set healthy threshold to 3
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3. Set unhealthy threshold to 3
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4. Set interval to 10 seconds
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5. Click on "Next" and choose the two of the instances you've created
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6. Click on "Create target group"
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9. Refresh target groups and choose the one you've just created
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10. Click on "Create load balancer" and wait for it to be provisioned
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11. Copy DNS address and paste it in the browser. If you refresh, you should see different message based on the instance where the traffic was routed to
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