Update high-availability-keepalived.md

Co-authored-by: Mike Jang <[email protected]>

Author: MV1205

content/nginx/deployment-guides/amazon-web-services/high-availability-keepalived.md

@@ -48,35 +48,20 @@ The scripts in the HA solution use the AWS API to associate an Elastic IP addres
    ```json
 
    {
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        "Version": "2012-10-17",
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        "Statement": [
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            {
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                "Effect": "Allow",
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                "Action": [
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                    "ec2:AssociateAddress",
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                    "ec2:DescribeInstances",
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                    "ec2:DescribeAddresses",
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                    "ec2:DisassociateAddress"
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                ],
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                "Resource": "*"
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            }
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        ]
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    }
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    ```
 
    Or, you can use the `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` environment variables to provide credentials to the HA scripts, as shown in [Step 5](#ha-aws_keepalived-configure).