Two EC2 instances with a simple web application that shows the web page with the string "Hey, it's a me, <HOSTNAME>!"
One EC2 instance with a simple web application that shows the web page with the string "Hey, it's only a test..." under the endpoint /test
- Create an application load balancer for the two instances you have, with the following properties
- healthy threshold: 3
- unhealthy threshold: 3
- interval: 10 seconds
- Create another target group for the third instance
- Traffic should be forwarded to this group based on the "/test" path
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Go to EC2 service
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Click in the left side menu on "Load balancers" under "Load balancing"
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Click on "Create load balancer"
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Choose "Application Load Balancer"
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Insert a name for the LB
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Choose an AZ where you want the LB to operate
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Choose a security group
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Under "Listeners and routing" click on "Create target group" and choose "Instances"
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Provide a name for the target group
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Set healthy threshold to 3
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Set unhealthy threshold to 3
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Set interval to 10 seconds
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Click on "Next" and choose two out of three instances you've created
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Click on "Create target group"
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Refresh target groups and choose the one you've just created
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Click on "Create load balancer" and wait for it to be provisioned
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In the left side menu click on "Target Groups" under "Load Balancing"
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Click on "Create target group"
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Set it with the same properties as previous target group but this time, add the third instance that you didn't include in the previous target group
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Go back to your ALB and under "Listeners" click on "Edit rules" under your current listener
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Add a rule where if the path is "/test" then traffic should be forwarded to the second target group you've created
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Click on "Save"
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Test it by going to the browser, insert the address and add "/test" to the address