angular 2 app in docker container failing. Failed to exec start script. - windows

Question

I have a compose file with an angular service, an express service, and a mongo database service. When I run docker-compose up --build, I get the following error:
> angular-client#0.0.0 start /usr/src/app/angular
> ng serve --host 0.0.0.0.0 --port 4200
2017-06-27T05:25:03.712327811Z
sh: 1: ng: not found
2017-06-27T05:25:03.732751350Z
npm info lifecycle angular-client#0.0.0~start: Failed to exec start
script
npm ERR! Linux 4.4.66-boot2docker
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"
npm ERR! node v7.10.0
npm ERR! npm v4.2.0
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! angular-client#0.0.0 start: `ng serve --host 0.0.0.0.0 --port 4200`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the angular-client#0.0.0 start script 'ng serve --host 0.0.0.0.0 --port 4200'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the angular-client package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! ng serve --host 0.0.0.0.0 --port 4200
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs angular-client
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls angular-client
npm ERR! There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?
2017-06-27T05:25:03.806272456Z
npm ERR! Please include the following file with any support request:
npm ERR! /root/.npm/_logs/2017-06-27T05_25_03_786Z-debug.log
This docker image was initially created on Ubuntu, where it works fine. This problem on started occurring when I pulled from github/dockerhub and ran docker-compose from Windows.
Here is my DOCKERFILE:
# Create image based on official Ubuntu 16.10 image
FROM ubuntu:16.10
# Create image based on the official Node 7 image from dockerhub
FROM node:7
# Create a directory where our app will be placed
RUN mkdir -p /usr/src/app/angular
# Change directory so that our commands run inside this new directory
WORKDIR /usr/src/app/angular
# Copy dependency definitions
COPY package.json /usr/src/app/angular
# Install dependecies
RUN npm install
# Get all the code needed to run the app
COPY . /usr/src/app/angular
# Expose the port the app runs in
EXPOSE 4200
# Serve the app
CMD ["npm", "start"]
Here is my package.json:
"name": "angular-client",
"version": "0.0.0",
"license": "MIT",
"angular-cli": {},
"scripts": {
"ng": "ng",
"start": "ng serve --host 0.0.0.0.0 --port 4200",
"test": "ng test",
"pree2e": "webdriver-manager update --standalone false --gecko false",
"e2e": "protractor"
},
"private": true,
"dependencies": {
"#angular/common": "4.1.3",
"#angular/compiler": "*",
"#angular/core": "^4.1.3",
"#angular/forms": "^4.1.3",
"#angular/http": "*",
"#angular/platform-browser": "^4.1.3",
"#angular/platform-browser-dynamic": "^4.1.3",
"#angular/router": "*",
"angular2-auth": "*",
"angular2-flash-messages": "^1.0.5",
"angular2-froala-wysiwyg": "^2.6.0",
"angular2-jwt": "^0.2.0",
"core-js": "^2.4.1",
"ng2-datepicker": "^1.8.3",
"ng2-pagination": "^2.0.1",
"ngx-dropdown": "0.0.22",
"rxjs": "^5.0.1",
"ts-helpers": "^1.1.1",
"zone.js": "^0.8.4"
},
"devDependencies": {
"#angular/cli": "^1.0.0",
"#angular/compiler-cli": "^4.1.3",
"#angular/core": "^4.1.3",
"#types/jasmine": "2.5.51",
"#types/node": "^7.0.29",
"codelyzer": "~3.0.1",
"jasmine-core": "2.6.3",
"jasmine-spec-reporter": "4.1.0",
"karma": "1.7.0",
"karma-chrome-launcher": "^2.0.0",
"karma-cli": "^1.0.1",
"karma-jasmine": "^1.0.2",
"karma-remap-istanbul": "^0.6.0",
"protractor": "~5.1.2",
"ts-node": "3.0.6",
"tslint": "^5.4.3",
"typescript": "~2.3.4"
}
}

Answer 1

npm WARN Local package.json exists, but node_modules missing, did you mean to install?
==> Looks like you lost the node_modules folder between the npm build and the npm start but I cannot find why.
Try to build only to each step (by commenting all the instructions after) and find when it's lost by running a container on the result of the build (docker run -it --rm <ID_OF_BUILT_IMAGE> bash
BTW:
your first FROM is useless
it would be better to use ENTRYPOINT instead of CMD
you have too much 0 in the host parameter of ng serve (0.0.0.0.0 is not a valid IP)