FeatureRequest: Use AWS SSM client to send multiple commands

[b-m-f]

What I would like to do:

• create client with https://github.com/gruntwork-io/terratest/blob/master/modules/aws/ssm.go#L89
• Send multiple Commands via the same client

Why?

https://github.com/gruntwork-io/terratest/blob/master/modules/aws/ssm.go#L138 always creates a new client.

Since the output is truncated I currently have to split up some workloads and execute them in sequence. Every time a new client is created the connection has to be established and waited for.

Reusing the same client will drasitacally improve the speed.

Implementation Idea

New function executeCommand(t testing.TestingT, client *ssm.SSM, command string) (*CommandOutput, error) .

This can then be used in a loop without reestablishing the connection every time.

I could send a PR if this is something you guys/gals would like to include into the SSM module.

[brikis98]

This makes sense. A PR is welcome, thank you!

[danquack]

Believe this issue can probably be closed now with #924

[brikis98]

Good point. Closing now as this was fixed in #924.