Amazon Greengrass Docker deployments: docker-compose not found

Question

I am trying to use AWS Greengrass to deploy docker containers to IoT devices (the devices have docker installed on them already) and am following the instructions provided by AWS to do this: https://docs.aws.amazon.com/greengrass/v2/developerguide/run-docker-container.html

Basically, I created a component using the GDK CLI, with the command

gdk component init -l python -t HelloWorld

For context, this is what my recipe.yaml file looks like:

RecipeFormatVersion: '2020-01-25'
ComponentName: com.example.DockerTest
ComponentVersion: '1.0.0'
ComponentDescription: 'Uses Greengrass to deploy NodeRed and Mosquitto to docker containers on the IoT devices.'
ComponentPublisher: Amazon
ComponentDependencies:
  aws.greengrass.DockerApplicationManager:
    VersionRequirement: ~2.0.0
Manifests:
  - Platform:
      os: all
    Lifecycle:
        run: docker-compose -f {artifacts:path}/docker-compose.yaml up
    Artifacts:
      - URI: "docker:nodered/node-red:latest"
      - URI: "docker:eclipse-mosquitto:latest"
      - URI: "s3://<valid s3 path>/docker-compose.yml"

And this is the docker-compose.yml file stored in the s3 bucket:

version: "3"
services:
  nodered:
    image: "nodered/node-red:latest"
    ports:
      - "1880:1880"
  mqtt:
    image: "eclipse-mosquitto:latest"
    ports:
      - "1883:1883"

When I deployed it to my raspberry pi at home, however, I got this error in the component logs on the raspberry pi, which has docker installed:

[WARN] (Copier) com.smartbeej.DockerTest: stderr. sh: 1: docker-compose: not found.

Running docker container ls on the raspberry pi showed no containers running as well. What am I doing wrong?

Answer 1

After some peer progamming, I have figured out the solution:

docker-compose does not refer to the docker-compose.yml file. It instead refers to the docker-compose command. To fix this, you can do one of two things:

1. Install the docker-compose command on your IoT device: https://docs.docker.com/compose/install/standalone/
2. Install the docker compose plugin on your IoT device: https://docs.docker.com/compose/install/linux/
   and change the Lifecycle command in the recipe.yaml from docker-compose to docker compose