simply replace .env_local.env to .env, and you will have the environment variables needed to run this api.
By default docker compose yml will read .env variables if its not set already, or you can pass environments via build like the following:
docker compose up
If using the built image you must have a postgres container instance running on its own.
docker run -d -p 5432:5432 --name postgres \ --env POSTGRES_PASSWORD=password \ --env POSTGRES_DB=elifullstack\ postgres
docker ps
docker inspect <postgress container id>
It will reveal the ip address somewhere in the output, copy it and use it for the below for POSTGRES_HOST
Once found ip of postgres container, we could now do the following:
docker run -p 3001:3001 -e POSTGRES_DB=elifullstack -e POSTGRES_HOST=172.17.0.2 --link postgres:postgres elihood/similar-reddit-service-docker