environment ¶

Environment variables play a crucial role in configuring the services. You can define environment variables to set properties from resources or AWS Intrinsic functions.

For example, you can do

          services:
  web-server:
    environment:
      ENV_VAR: value_01
      SIMPLE_PROPERTY: x-s3::storage-bucket::BucketName
      AWS_REGION: x-aws::AWS::Region
      COMPLEX_ENV_VAR: s3://x-s3::storage-bucket::BucketName/x-aws::AWS::Provider/cluster_01

x-s3:
  storage-bucket:
    Lookup:
      Tags:
        Name: my-docs

         

SIMPLE_PROPERTY will resolve into the value of the BucketName. We assume the bucket name is my-docs
AWS_REGION will result to the AWS Region the AWS Stack is deployed in.
COMPLEX_ENV_VAR will result in s3://my-docs/eu-west-1/cluster_01