Allow use of existing IAM role for EC2 instance profile

[JBarna]

What

• Allow the user of the module to specify an existing IAM Role name for the instance profile
• This IAM role name will be used to create the instance profile that is assigned to the EC2 instances managed by Elastic Beanstalk

why

• Currently the module creates an IAM role and a series of permissions for the role.
• It is not possible to specify what permissions to use
• It is not possible to edit the permissions that are created
• This limitation severely limits the capability of the EC2 instances if they require other permissions to operate.

references

• This PR will close issue 70: closes#70
• https://github.com/cloudposse/terraform-aws-elastic-beanstalk-environment/issues/70

Additional information

I was unable to build the readme.md. I ran

make init
make readme/deps
make readme

and received this error

$ make readme
Package terraform-docs already installed
make: gomplate: No such file or directory
make: *** [readme/build] Error 1

Please advise how to fix those errors.

Best, Joel

[mergify[bot]]

This pull request is now in conflict. Could you fix it @JBarna? 🙏

[aknysh]

@JBarna please resolve the conflicts

[aknysh]

still conflicts @boeser-stavvy thank you for taking care of this

[mergify[bot]]

This pull request is now in conflict. Could you fix it @JBarna? 🙏

[mergify[bot]]

This PR has been closed due to inactivity and merge conflicts. Please resolve the conflicts and reopen if necessary.

[mergify[bot]]

Thanks @JBarna for creating this pull request!

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