99c4e02ecf
Name it instead "topics" so it won't be strange if some topics included "exercises" directory.
30 lines
1004 B
Markdown
30 lines
1004 B
Markdown
## AWS Route 53 - Failover
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### Requirements
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A running EC2 web instance with an health check defined for it in Route 53
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### Objectives
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1. Create a failover record that will failover to another record if an health check isn't passing
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1. Make sure TTL is 30
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2. Associate the failover record with the health check you have
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### Solution
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#### Console
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1. Go to Route 53 service
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2. Click on "Hosted Zones" in the left-side menu
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3. Click on your hosted zone
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4. Click on "Created record"
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5. Insert "failover" in record name and set record type to A
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6. Insert the IP of your instance
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7. Set the routing policy to failover
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8. Set TTL to 30
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9. Associate with an health check
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10. Add another record with the same properties as the previous one
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11. Click on "Create records"
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12. Go to your EC2 instance and edit its security group to remove the HTTP rules
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13. Use your web app and if you print the hotsname of your instance then you will notice, a failover was performed and a different EC2 instance is used
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