I'm trying to containerize an angular-9 application.
dockerfile
FROM node:14.17.0-alpine as build-step
RUN mkdir -p /app
WORKDIR /app
COPY package.json /app
COPY . /app
# Install & build packages
RUN npm install
# Listing 1
RUN ls -la
RUN npm run build:docker
# Listing 2
Run ls -la
# Setup nginx
FROM nginx:alpine
COPY nginx.conf /etc/nginx/nginx.conf
COPY --from=build-step /app/dist/ /usr/share/nginx/html/
# Expose port 80
EXPOSE 80
Package.json
script: {
"build:docker": "node --max-old-space-size=10240 ./node_modules/#angular/cli/bin/ng build --prod --output-path=dist"
}
#Listing 1(in dokerfile) shows node-modules folder but Listing 2(in dokerfile) doesn't.
Also in the end, it throws error
COPY failed: stat app/dist/: file does not exist
I'm unable to understand why it is not fetching files which were build in docker.
I'm adding the screenshot of logs below.
What about this Dockerfile
FROM node:14.17.0-alpine as build-step
WORKDIR /app
COPY package.json .
COPY package-lock.json .
RUN npm ci
# node_modules installed
COPY . .
RUN npm run build:docker
# dist filled with your build app
FROM nginx:alpine
COPY nginx.conf /etc/nginx/nginx.conf
COPY --from=build-step /app/dist/ /usr/share/nginx/html
you should have a .dockerignore file in the same directory containing
dist
node_modules
This should install exactly the versions of package-lock.json via npm ci. It doesn't copy dist or node_module directories through the .dockerignore and speeds up your build.
If this all doesn't help, please provide the output of RUN npm run build:docker.
I am newbie on Kubernetes. I have this dockerfile and deployed on kubernetes but it crash every 50s. What is wrong am I doing ?
FROM node:16-alpine3.14
RUN apk add dumb-init
# Create app directory
WORKDIR /usr/src/app
# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm#5+)
COPY package*.json ./
RUN npm install
# If you are building your code for production
# RUN npm ci --only=production
# Bundle app source
COPY --chown=node:node . .
RUN npm ci --only=production
USER node
EXPOSE 4000
CMD [ "dumb-init", "node", "server.js" ]
I'm making an app with React JS, Next Js, npm and also I would have to change the .npmrc for it to run.
I don't know how I could make a DockerFile for these technologies and at the same time this dockerfile has to change the .npmrc
my docker file
FROM node:lts as dependencies
WORKDIR /emercore-arg-manager
COPY package.json yarn.lock ./
RUN echo "#lala-lalal:registry=https://npm.pkg.github.com/" >> ~/.npmrc
RUN echo "//npm.pkg.github.com/:_authToken=asdasdasdasdasdsad" >> ~/.npmrc
RUN echo "//registry.npmjs.org/:_authToken=assdasdasdasdsaasd" >> ~/.npmrc
RUN yarn install --frozen-lockfile
FROM node:lts as builder
WORKDIR /emercore-arg-manager
COPY . .
COPY --from=dependencies /emercore-arg-manager/node_modules ./node_modules
RUN yarn build
FROM node:lts as runner
WORKDIR /emercore-arg-manager
ENV NODE_ENV production
# If you are using a custom next.config.js file, uncomment this line.
# COPY --from=builder /my-project/next.config.js ./
COPY --from=builder /emercore-arg-manager/public ./public
COPY --from=builder /emercore-arg-manager/.next ./.next
COPY --from=builder /emercore-arg-manager/node_modules ./node_modules
COPY --from=builder /emercore-arg-manager/package.json ./package.json
EXPOSE 3000
CMD ["yarn", "start:dev"]
It does not work for me, and I think it is a lot of content for a dockerfile with these technologies, could someone help me to put together a shorter one and make it work?
The command that i use in my deskpot is yarn install and yarn start:dev (and its working)
My Angular app runs fine locally but I haven't figured out how to do the same with a Docker image. Outside of Docker, the UI runs on port 4200 with ng serve and the API serves data from 8080 with node server.js.
My Dockerfile is set up so it can get the Node server running and available on 8080, but the Angular UI won't run. I've tried several options but right now I have:
FROM node:14.17.3
COPY package*.json ./
EXPOSE 4200 8080
RUN npm install -g #angular/cli
RUN npm install --only=production
COPY . ./
RUN ng serve
CMD ["node", "server.js"]
It fails on ng serve with the error: The serve command requires to be run in an Angular project, but a project definition could not be found. I do have an angular.json file in the root. I'm not sure what I am missing. I read that ng serve shouldn't be used in this situation but the alternatives I've seen haven't made a difference.
Workspace:
EDIT 8/10/21: Based on the answers here and a bunch of research, this will display the UI with nginx:
FROM node:12.16.1-alpine as build
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm ci --only=production
COPY . .
# RUN npm install -g #angular/cli
# RUN npm run build --prod
FROM nginx:1.15.8-alpine
COPY --from=build /usr/src/app/dist /usr/share/nginx/html
# CMD ["node", "server.js"]
However, the npm run build step fails because ng is not found despite installing #angular/cli. I have to run this manually to build the dist folder. And I can't run node server.js alongside this. It seems I can only get the front end or back end, not both.
Use below command at the end to run ng serve with host 0.0.0.0 which means it listens to all interfaces.
CMD ["ng","serve","--host", "0.0.0.0"]
But I would suggest using ngInx.
Steps to follow:
Create a docker file under the root of your project, and add the below code. It takes care of: downloading dependencies, building angular project, and deploy it to ngInx server.
#Download Node Alpine image
FROM node:12.16.1-alpine As build
#Setup the working directory
WORKDIR /usr/src/ng-app
#Copy package.json
COPY package.json package-lock.json ./
#Install dependencies
RUN npm install
#Copy other files and folder to working directory
COPY . .
#Build Angular application in PROD mode
RUN npm run build
#Download NGINX Image
FROM nginx:1.15.8-alpine
#Copy built angular files to NGINX HTML folder
COPY --from=build /usr/src/ng-app/dist/pokemon-app/ /usr/share/nginx/html
Build docker image:
docker build -t my-ng-app .
Spinning the docker container with below command expose your app at port 80
docker run -dp 3000:80 my-ng-app
Check out my article on this - https://askudhay.com/how-to-dockerize-an-angular-application, and please let me know if you still have any questions.
I figured out a solution that will run the full application. Most answers here focus on running the front end (the nginx suggestion was helpful). It seemed a Docker container could enable the UI or server but not both. I came across Docker Compose, which will run the front and back ends in separate images. My solution:
Dockerfile.ui
# Define node version
FROM node:12.16.1-alpine as build
# Define container directory
WORKDIR /usr/src/app
# Copy package*.json for npm install
COPY package*.json ./
# Run npm clean install, including dev dependencies for #angular-devkit
RUN npm ci
# Run npm install #angular/cli
RUN npm install -g #angular/cli
# Copy all files
COPY . .
# Run ng build through npm to create dist folder
RUN npm run build --prod
# Define nginx for front-end server
FROM nginx:1.15.8-alpine
# Copy dist from ng build to nginx html folder
COPY --from=build /usr/src/app/dist /usr/share/nginx/html
Dockerfile.server
# Define node version
FROM node:12.16.1-alpine
# Define container directory
WORKDIR /usr/src/app
# Copy package*.json for npm install
COPY package*.json ./
# Run npm clean install, prod dependencies only
RUN npm ci --only=production
# Copy all files
COPY . .
# Expose port 8080 for server
EXPOSE 8080
# Run "node server/run.js"
CMD ["node", "server/run.js"]
docker-compose.yml
version: '3'
services:
server:
build:
context: ./
dockerfile: Dockerfile.server
container_name: server
ports:
- 8080:8080
ui:
build:
context: ./
dockerfile: Dockerfile.ui
container_name: ui
ports:
- 4200:80
links:
- server
docker-compose up will build out an image for server and UI and deploy concurrently. I also resolved the ng not found errors by installing dev dependencies, particularly #angular-devkit/build-angular.
This tutorial helped me figure out Docker Compose: https://wkrzywiec.medium.com/how-to-run-database-backend-and-frontend-in-a-single-click-with-docker-compose-4bcda66f6de
I think updating this line
COPY . ./
with
COPY . ./app
should solve that error. It appears that the node "volume" is in that folder.
Otherwise setting the workdir also seems like a solution:
FROM node:14
WORKDIR /usr/src/app
COPY package*.json ./
...
Source: https://nodejs.org/en/docs/guides/nodejs-docker-webapp/
I am installing Express in a container.
I need the smallest development container and I am using a full container to install the dependencies
# container to install dendencies
FROM node:10 as installer
WORKDIR /src
COPY package.json package-lock.json ./
# install all dependencies
RUN npm install
# i need nodemon as global
RUN npm install -g nodemon
# working container
FROM node:10-alpine
RUN mkdir /src
WORKDIR /src
# copy everything (node_modules)
COPY --from=installer /src .
COPY . .
EXPOSE 3000
CMD ["nodemon", "start"]
I copied all the node_modules but how can I copy the global -g nodemon ?
How can I remove the "installer" container after the installation process?