Renewing AWS credentials

Question

I'm following this [AWS documentation](https://aws.amazon.com/premiumsupport/knowledge-center/ecs-fargate-access-aws-services/) to make ECS tasks access other AWS services using task role credentials. When I run `curl http://169.254.170.2$AWS_CONTAINER_CREDENTIALS_RELATIVE_URI` it returns a JSON document that looks something like this JSON document:

```
{
  "RoleArn":"arn:aws:iam::718304...",
  "AccessKeyId":"ASIA2...",
  "SecretAccessKey":"BNZD...",
  "Token":"IQoJ...",
  "Expiration":"2023-03-03T17:56:46Z"
}
```

My ECS instances are long running which means they will outlive the expiration timestamp provided in the above result.

**Do I need to poll that endpoint regularly to avoid expired credentials? if so is there a way to extend the credentails life?**

Accepted Answer

You will need to periodically refresh the credentials obtained from the metadata endpoint because as you mentioned, they have an expiration timestamp. You can do this by setting up a scheduled task or a cron job to fetch the new credentials from the metadata endpoint before they expire.
To extend the credentials' life, you can increase the session duration when you assume the task role using AWS Security Token Service (STS). When you assume a role, you can specify the duration of the role session, up to a maximum of 12 hours. The default session duration is one hour.

From here - https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html 
*Temporary security credentials are short-term, as the name implies. They can be configured to last for anywhere from a few minutes to several hours. After the credentials expire, AWS no longer recognizes them or allows any kind of access from API requests made with them.*

Renewing AWS credentials

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