Support instance profile credentials via ec2 metadata service, like aws cli

Is your feature request related to a problem? Please describe. I’m attempting to run the amplify cli on a Jenkins worker, which gets its credentials from its instance profile, not from a ~/.aws/credentials or ~/.aws/config file. I can run aws s3 ls and other aws cli commands just fine, but when I run amplify init, it says “AWS access credentials can not be found.”

Describe the solution you’d like amplify should work automagically just like the aws cli 😃

Describe alternatives you’ve considered Per these docs I could fetch the credentials via the AWS STS API, but that’s a bit of a pain.

[UnleashedMind]

If you configured your EC2 instance to use IAM roles, the Amplify CLI can automatically assume the IAM credentials for your application, eliminating the need to manually provide credentials. This can be done in two ways:

1. If you are initializing a project, run the amplify init in headless mode and set the awscloudformation provider’s configuration level to be general, see here
2. After you’ve already initialized a project (probably with other method for credentials), run amplify configure project, and when prompted Do you want to update or remove the project level configuration, select remove. The cli will then automatically assume the EC2 role for your project.

[github-actions[bot]]

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