Feature #15051

[a-d-c] EC2 driver supports AssumeRole

Added by Peter Amstutz 4 months ago. Updated 4 months ago.

Status:
New
Priority:
Normal
Assigned To:
-
Category:
-
Target version:
Start date:
Due date:
% Done:

0%

Estimated time:
Story points:
2.0

Description

Customer has a complex security policy that is too large to be assigned to individual user account. The workaround is to give the user account permission to use AssumeRole (https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html) to an IAM role with the complete policy. This returns temporary credentials with the desired role. Because they are temporary, they need to be periodically refreshed.

Add support to the arvados-dispatch-cloud EC2 driver to create a session with the primary credentials, then call AssumeRole to get temporary credentials (with a 3600 second lifetime), which will then be used for subsequent cloud interaction (create/list/destroy instances). Credentials will need to be auto-refreshed once an hour.

Check if the AWS Go SDK has any support support this usage pattern of establishing a session, switching to an alternate role, and performing auto-refresh.

https://docs.aws.amazon.com/sdk-for-go/api/aws/session/

Assume Role values allow you to configure the SDK to assume an IAM role using a set of credentials provided in a config file via the source_profile field. Both "role_arn" and "source_profile" are required.

Internally to the SDK, I think this involves setting up "chained credentials" and then setting that on the aws.Config struct used to initialize the session:

https://docs.aws.amazon.com/sdk-for-go/api/aws/credentials/


Related issues

Related to Arvados - Story #13908: [Epic] Replace SLURM for cloud job scheduling/dispatchingNew

History

#1 Updated by Peter Amstutz 4 months ago

  • Status changed from New to In Progress

#2 Updated by Peter Amstutz 4 months ago

  • Subject changed from [c-d-c] AWS driver supports AssumeRole to [c-d-c] EC2 driver supports AssumeRole
  • Description updated (diff)
  • Status changed from In Progress to New

#3 Updated by Ward Vandewege 4 months ago

  • Subject changed from [c-d-c] EC2 driver supports AssumeRole to [a-d-c] EC2 driver supports AssumeRole

#4 Updated by Ward Vandewege 4 months ago

  • Description updated (diff)

#5 Updated by Peter Amstutz 4 months ago

  • Description updated (diff)

#6 Updated by Tom Clegg 4 months ago

  • Related to Story #13908: [Epic] Replace SLURM for cloud job scheduling/dispatching added

#7 Updated by Tom Morris 4 months ago

  • Target version changed from To Be Groomed to Arvados Future Sprints
  • Story points set to 2.0

#8 Updated by Eric Biagiotti 4 months ago

  • Target version changed from Arvados Future Sprints to 2019-04-10 Sprint

#9 Updated by Tom Morris 4 months ago

  • Target version changed from 2019-04-10 Sprint to Arvados Future Sprints

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