Can't run image, CMD ["npm", "start"] command error

Question

I just build app: docker build . -t ang:l

after try run it: docker run -d -p 83:80 ang:l

and get error:

docker: Error response from daemon: OCI runtime create failed: container_linux.go:345: starting container process caused "exec: \"npm\": executable file not found in $PATH": unknown.

without this CMD ["npm", "start"] command all works, but I need server and bd.

Dockerfile:

# Stage 0, based on Node.js
FROM node:latest as node
WORKDIR /app
COPY package*.json ./
COPY . .

#RUN npm install
ARG configuration=production
RUN true && \
  npm run build:client-and-server-bundles -- --configuration=$configuration \
    && \
  npm prune --production && \
  true

# Stage 1, based on Nginx
FROM nginx:alpine
COPY --from=node /app/dist /usr/src/app/

CMD ["npm", "start"]

package.json command : "start": "node dist/server",

Also I tried use docker-compose.yml:

version: '3.4'
services:
  app:
    container_name: ang
    image: ang:l
    build:
      context: .
      dockerfile: Dockerfile
    command: npm start
    ports:
      - '3000:3000'
    links:
      - mysql
  mysql:
    container_name: mysql
    image: mysql
    ports:
      - '3306:3306'

it's both variants don't work, help please, how to build it in docker

Answer 1

The nginx docker image doesn't contain npm. You'll need to use node:latest which contains npm.

# Stage 1, based on Nginx
FROM node:latest
COPY --from=node /app/dist /usr/src/app/
CMD ["npm", "start"]

You could potentially use node:alpine to run the application.