Run yarn commands inside docker-compose

dcyarn

#!/bin/bash

root_path=$( cd "$(dirname $(dirname "${BASH_SOURCE[0]}"))" ; pwd -P )

# Check to see if the node_modules folder exists in the 'web' project
if [ ! -d "$root_path/web/node_modules" ]; then
    echo "No '/web/node_modules' folder found. Running 'yarn' in the web project...";
    # Just go ahead and run yarn automatically...
    cd $root_path/web
    nvm use && yarn
fi

# Check to see if the node_modules folder exists in the 'api' project
if [ ! -d "$root_path/api/node_modules" ]; then
    echo "No '/api/node_modules' folder found. Running 'yarn' in the api project...";
    # Just go ahead and run yarn automatically...
    cd $root_path/api
    nvm use && yarn
fi

cd $root_path

# All arguments passed to this script will be set in the DC_YARN_COMMAND environment variable.
# Docker-compose will interpret this var as the command to be passed to 'yarn'

# This docker-compose command layers two docker-compose.yml files on top of each other
DC_YARN_COMMAND="$@" docker-compose --env-file=.env.example -f docker-compose.yml -f docker-compose.dev.yml up

docker-compose.dev.yml

version: "3.7"

services:
  web:
    ports: 
      - "1234:1234" # parcel web server
      - "1235:1235" # parcel hmr server
      - "6006:6006" # storybook
    volumes: 
      - ./web/:/usr/src/
    entrypoint: ["yarn", "${DC_YARN_COMMAND:?err}"]