'nuxt: not found' Docker with yarn workspace

0. admin_app| /bin/sh: nuxt: not found – means that you do not installed yarn dependencies

1. In your provided docker-compose.yaml you are specifying Dockerfile as ‘Dockerfile’ and context as path, where the file exists.

In a nutshell, if you want to store Dockerfile in a different location, you need to specify path in dockerfile property, not context. Context is used to define, where the ‘current directory’ is (from where you are copying package.json and yarn.lock).

Learn more from the official documentation.

I will assume that what you actually want is to copy source files from ./packages/admin to container and then build your app.

2. You are trying to mount source files from docker-compose.yaml in order to build your app. It is a good practice to have a 2-step build if you want just to copy final built files to container.

You can read about multi-stage build from here.

Example of docker-compose.yaml:

version: '3.7'
services:
  admin:
    container_name: admin_app
    command: yarn dev
    stdin_open: true
    tty: true
    ports:
      - "3030:3030"
    build:
      dockerfile: ./config/admin/Dockerfile
      context: .

Example of Dockerfile:

FROM node:lts-alpine AS builder
WORKDIR /admin

# Copy all files for build - ignore unused in .dockerignore
COPY ./packages/admin ./

RUN yarn install
RUN yarn build

EXPOSE 8000

CMD [ "yarn", "dev" ]

Note: this Dockerfile will only build admin package without yarn workspace.

Update

If you want to use workspaces in your build, you’ll need to tweak docker files. It will be easier to create several images (multi-stage build) – one for dependencies, second for the app itself:

1. Base image (dependencies):

   1. Copy all files needed for installing dependencies
   2. Install dependencies

2. Build image:

   0. Use FROM your base image
   1. Copy or mount via volume files for building a package (the last one with docker-compose.yaml)
   2. Build package
   3. Run with docker-compose.yaml

Note: you can create additional docker-compose.build.yaml for just building a project. Official docs

Example of Dockerfile:

FROM node:lts-alpine AS dependencies
WORKDIR /app

# Copy files from project for dependencies install: (TODO)
# COPY ./ ./

RUN yarn install

# -----------------------------

# You can define that in different Dockerfile
# For that build the first image and tag it
#     then replace dependencies with tagged image
#
# Or create additional docker-compose.build.yaml 
#    that will build your project
# Ref: https://docs.docker.com/compose/compose-file/build/#context-required

FROM dependencies AS admin
WORKDIR /app

COPY ./packages/admin ./
RUN yarn admin:build

EXPOSE 8000

CMD [ "yarn", "dev" ]