$ cat ~/.aws/credentials
[default]
aws_access_key_id = AK_FAKE_KEY_88RD3PNY
aws_secret_access_key = BividQsWW_FAKE_KEY_MuB5VAAsQNJtSxQQyDY2C

my_service:
    build: .
    image: my_image
    environment:
         - AWS_ACCESS_KEY_ID=<What should I put here?>
         - AWS_SECRET_ACCESS_KEY=<What should I put here?>