How to retrieve current region inside a docker started up by a greengrass component

Question

This seems trivial, but i'm having problems finding how i can retrieve the region that my greengrass component started docker is running in.

I know i can pass in environment variables into the docker container at startup, but even when i am at a terminal on the greengrass device, there isn't something like AWS_REGION defined in the environment, so it is not possible to pass that on.

I have the aws-cli installed, but it doesn't seem to be configured so 
```
aws configure get region
```
 returns nothing. 
Surely a running greengrass device must know what region it is running in ? How can i retrieve this ?

Accepted Answer

AWS_REGION environment variable is available to you, but you need to tell docker to pass it through. Add `-e AWS_REGION` to the docker command to pass through that environment variable.

Cheers,

Michael

Answer

I have never used greengrass but a couple of ideas:-

Using this method in ECS, you are able ot obtain the AZ at least https://docs.aws.amazon.com/AmazonECS/latest/developerguide/container-metadata.html

How to retrieve current region inside a docker started up by a greengrass component

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