34 lines
1.1 KiB
Markdown
34 lines
1.1 KiB
Markdown
|
## AWS Route 53 - Health Checks
|
||
|
|
|
||
|
|
## Requirements
|
||
|
|
|
||
|
|
3 web instances in different AZs.
|
||
|
|
|
||
|
|
## Objectives
|
||
|
|
|
||
|
|
1. For each instance create a health checks with the following properties:
|
||
|
|
1. Name it after the AZ where the instance resides
|
||
|
|
2. Failure threshold should be 5
|
||
|
|
|
||
|
|
2. Edit the security group of one of your instances and remove HTTP rules.
|
||
|
|
1. Did it change the status of the health check?
|
||
|
|
|
||
|
|
### Solution
|
||
|
|
|
||
|
|
#### Console
|
||
|
|
|
||
|
|
1. Go to Route 53
|
||
|
|
2. Click on "Health Checks" in the left-side menu
|
||
|
|
3. Click on "Create health check"
|
||
|
|
4. Insert the name: us-east-2
|
||
|
|
5. What to monitor: endpoint
|
||
|
|
6. Insert the IP address of the instance
|
||
|
|
7. Insert the endpoint /health if your web instance supports that endpoint
|
||
|
|
8. In advanced configuration, set Failure threshold to 5
|
||
|
|
9. Click on "next" and then on "Create health check"
|
||
|
|
10. Repeat steps 1-9 for the other two instances you have
|
||
|
|
|
||
|
|
1. Go to security group of one of your instances
|
||
|
|
2. Click on "Actions" -> Edit inbound rules -> Delete HTTP based rules
|
||
|
|
3. Go back to health checks page and after a couple of seconds you should see that the status becomes "unhealthy"
|