Add docs to launch an instance of Athens on AWS Fargate

[manugupt1]

Is your feature request related to a problem? Please describe.
RIght now, we are missing docs on to launch an instance of athens for Fargate with sample task definition file and the steps to run through it.

Describe the solution you'd like
I would like to see docs that would on-board a non AWS user to athens on AWS Fargate.

[arschles]

@manugupt1 does #1283 close this one?

[manugupt1]

No it does not. This is a follow up. Cheers Manu

…

________________________________ From: Aaron Schlesinger <notifications@github.com> Sent: Thursday, August 29, 2019 12:01 AM To: gomods/athens Cc: Manu Gupta; Mention Subject: Re: [gomods/athens] Add docs to launch an instance of Athens on AWS Fargate (#1350) @manugupt1<https://github.com/manugupt1> does #1283<#1283> close this one? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#1350?email_source=notifications&email_token=AADAXD7ORDSTT6GP3DLQS23QG3AA3A5CNFSM4IPADFX2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD5MBYQA#issuecomment-525868096>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AADAXD2EYLIT6K6A23XK7L3QG3AA3ANCNFSM4IPADFXQ>.

[arschles]

@manugupt1 makes sense. would you be up for adding these docs?

[juliengrondin]

This would be very useful as I ran into some issues trying to set this up.
My current setup had the correct permissions on an assigned IAM role however I was getting errors due to invalid access keys.
The access key and ID had to be specifically set to an empty string in this case to work, however it was very unclear that this was necessary as it is not usually required when using roles in AWS.

[arschles]

@juliengrondin I'm not very good at AWS so I'm not exactly sure what's needed. Is it just setting AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY in the config.dev.toml to ""?

[geototti21]

@juliengrondin @arschles I think you need to set UseDefaultConfiguration to true and it will work with the default AWS cli behaviour https://github.com/gomods/athens/blob/master/config.dev.toml#L440

[juliengrondin]

@geototti21 Thanks for clarifying. I did wonder about this but it was not clear how to achieve this with env override which is primarily how I'm configuring my container.
@arschles by setting the env overrides to "" this solved the issue for me.

[arschles]

So is it right to say there are two ways to do it? Either setting UseDefaultConfiguration=True or doing the env overrides? @juliengrondin if you're up for writing these docs, I'm happy to review 😉

[mc-roblee]

@manugupt1 is this resolved by #1708?

cc: @juliengrondin

[manugupt1]

@mc-roblee I would like to see one more improvement. I would like to see a complete task definition that points to the athens task image; would you be able to help with it?

[mc-roblee]

Happy to take a look, certainly. I am not up to speed on task definitions, so I shall read some docs and start a branch