I have a docker-compose configuration for an MEAN app that's working fine.
I would like my angular (ng serve) and express servers (nodemon) to rerun automaticaly when I hit ctrl + s as if I was running my app in local.
For that, my containers need to be aware that the files changed.
How can I do that ?
Angular's Dockerfile :
FROM node:10
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . ./
EXPOSE 4200
CMD ["npm", "start"]
Express's Dockerfile :
FROM node:6
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . ./
EXPOSE 3000
CMD ["npm", "start"]
docker-compose.yml :
version: '3'
services:
angular: # name of the first service
build: client # specify the directory of the Dockerfile
ports:
- "4200:4200"
express: #name of the second service
build: server # specify the directory of the Dockerfile
ports:
- "3000:3000"
links:
- database
database: # name of the third service
image: mongo
ports:
- "27017:27017"
Both Angular and Express have an .dockerignore for node_modules
If you are in dev environment, you can add the volumes section in your docker-compose.yml as below :
services:
angular: # name of the first service
build: client # specify the directory of the Dockerfile
ports:
- "4200:4200"
volumes:
- /path/in/host/machine:/path/in/container
express: #name of the second service
build: server # specify the directory of the Dockerfile
ports:
- "3000:3000"
links:
- database
volumes:
- /path/in/host/machine:/path/in/container
database: # name of the third service
image: mongo
ports:
- "27017:27017"
Reference:
volumes in docker-compose
Related
I created this docker-compose file based on my two images (front and back-end), both are running ok when I run docker-compose up.
The problem is that I want to make hot reload work properly for my frontend which is built upon react.
I tried many things but the properties volumes and build do not seem to be able to find my directories.
So, the directory for both projects are:
C:\Users\pwdie\Downloads\projects\typescript-api (api)
C:\Users\pwdie\Downloads\projects\frontend-api-consumer (front)
being "projects" for the root for both of them, and frontend-api-consumer containing the docker-compose.yml as the image shows.
Didn't understand that part of the docker-compose system, explanations will be well received.
Front Dockerfile
FROM node:17
WORKDIR /app
COPY package.json ./
RUN yarn
COPY ./ ./
EXPOSE 3000:3000
CMD ["yarn", "dev"]
Api Dockerfile
FROM node:17
WORKDIR /app
COPY package.json ./
RUN yarn
COPY . .
ENV DB_HOST=host.docker.internal
EXPOSE 5000:5000
CMD ["yarn", "dev"]
Docker-compose.yml
version: "3.8"
services:
api:
image: api
build: ../typescript_api
volumes:
- ../typescript_api:/var/app
environment:
DB_USER: postgres
DB_PASSWORD: postgres
DB_HOST: host.docker.internal
DB_PORT: 5432
DB_NAME: typescript_api
ACCESS_TOKEN_SECRET: 1c6c3296f699e051220674d329e040dee0abae986f62d62eb89f55dfa95bff1ac9b52731177e664e25bff9b6ce0eba6ec7a9b6cf7d03e94487dc03179dc31c7e
ports:
- "5000:5000"
front:
image: front
build: .
volumes:
- ./:/var/app
environment:
REACT_APP_MAPBOX_TOKEN: pk.eyJ1Ijoic291c2FkaWVnbzExIiwiYSI6ImNrdHEwbDRrdTBycTEycXBtbXZ5eXEzMm4ifQ.U58H7S1um_WcRC2rBoEuNw
REACT_APP_API_URL: http://localhost:5000
depends_on:
- api
ports:
- "3000:3000"
I have built a MEAN stack application with nginx front end.
I have 2 docker files - one for front end and one for back end
And I have a docker-compose file that pulls them together along with the database
This works great on my development machine
I then push the images to my dockerhub site
On my production ubuntu machine I pull the images that I want from my dockerhub repository
But how should I run them?
I transfer my docker-compose file to the server and try to run it:
docker-compose -f docker-compose.prod.yml up
but it complains that the folder structure isnt what I have on my dev machine:
ERROR: build path /home/demo/api either does not exist, is not accessible, or is not a valid URL.
I dont want to put all the code on the server and rebuild it.. surely that defeats the purpose of using dockerhub images?
I also need the docker compose file to pull in the .prod.env file for database credentials etc.
I know Im missing something here.
How do I run my images without rebuilding them from scratch?
Do I need another service for this?
Thanks in advance
docker-compose.prod.yml:
version: '3'
services:
# Database
database:
env_file:
- .prod.env
image: mongo
restart: always
environment:
# MONGO_INITDB_ROOT_USERNAME: root
# MONGO_INITDB_ROOT_PASSWORD: $DB_ADMIN_PASSWORD
# Create a new database. Please note, the
# /docker-entrypoint-initdb.d/init.js has to be executed
# in order for the database to be created
MONGO_INITDB_ROOT_USERNAME: root
MONGO_INITDB_ROOT_PASSWORD: $MONGO_INITDB_ROOT_PASSWORD
DB_NAME: $DB_NAME
DB_USER: $DB_USER
DB_PASSWORD: $DB_PASSWORD
MONGO_INITDB_DATABASE: $DB_NAME
volumes:
# Add the db-init.js file to the Mongo DB container
- ./mongo-init.sh:/docker-entrypoint-initdb.d/mongo-init.sh:ro
- /data/db
ports:
- '27017-27019:27017-27019'
networks:
- backend-net
# Database management
mongo-express:
image: mongo-express
restart: always
ports:
- 8081:8081
environment:
ME_CONFIG_MONGODB_ADMINUSERNAME: root
ME_CONFIG_MONGODB_ADMINPASSWORD: $MONGO_INITDB_ROOT_PASSWORD
ME_CONFIG_MONGODB_SERVER: database
depends_on:
- database
networks:
- backend-net
# Nodejs API
backend:
depends_on:
- database
env_file:
- .prod.env
build:
context: ./api
dockerfile: Dockerfile-PROD-API
# Note: put this container name into proxy.conf.json for local angular CLI development instead of localhost
container_name: node-api-prod
networks:
- backend-net
# Nginx and compiled angular app
frontend:
build:
context: ./ui
dockerfile: Dockerfile-PROD-UI
ports:
- "8180:80"
container_name: nginx-ui-prod
networks:
- backend-net
networks:
backend-net:
driver: bridge
DOCKERFILE-PROD-API:
#SERVER ========================================
FROM node:10-alpine as server
WORKDIR /app
# Install dependencies
COPY package*.json ./
RUN npm install
# Bundle app source
COPY . .
#RUN ls -lha
EXPOSE 3000
CMD ["npm", "run", "start"]
DOCKERFILE-PROD-UI:
#APP ========================================
FROM node:10-alpine as build
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install #angular/cli && npm install
COPY . .
RUN npm run build
#RUN ls -lha
#FINAL ========================================
FROM nginx:1.18.0-alpine
COPY --from=build /usr/src/app/dist /usr/share/nginx/html
COPY ./nginx.conf /etc/nginx/conf.d/default.conf
Using full image names including dockerhub path resolved the issue for me.
Working solution shown below:
Dockerfile-PROD-UI
#GET ANGULAR ========================================
FROM node:10-alpine as base
WORKDIR /usr/src/app
COPY ui/package*.json ./
RUN npm install #angular/cli && npm install
COPY ui/. .
#BUILD ANGULAR ========================================
FROM base as build
RUN npm run build
#RUN ls -lha
#NGINX ========================================
FROM nginx:1.18.0-alpine
COPY --from=build /usr/src/app/dist /usr/share/nginx/html
COPY ./nginx.conf /etc/nginx/conf.d/default.conf
Dockerfile-PROD-API
#SERVER ========================================
FROM node:10-alpine as server
WORKDIR /app
# Install dependencies
COPY package*.json ./
RUN npm install
# Bundle app source
COPY . .
#RUN ls -lha
EXPOSE 3000
CMD ["npm", "run", "start"]
docker-compose.yml
version: '3.5'
services:
# Database
database:
image: mongo
restart: always
env_file:
- .prod.env
environment:
# MONGO_INITDB_ROOT_USERNAME: root
# MONGO_INITDB_ROOT_PASSWORD: $DB_ADMIN_PASSWORD
# Create a new database. Please note, the
# /docker-entrypoint-initdb.d/init.js has to be executed
# in order for the database to be created
MONGO_INITDB_ROOT_USERNAME: root
MONGO_INITDB_ROOT_PASSWORD: $MONGO_INITDB_ROOT_PASSWORD
DB_NAME: $DB_NAME
DB_USER: $DB_USER
DB_PASSWORD: $DB_PASSWORD
MONGO_INITDB_DATABASE: $DB_NAME
volumes:
# Add the db-init.js file to the Mongo DB container
- ./mongo-init.sh:/docker-entrypoint-initdb.d/mongo-init.sh:ro
- db-data:/data/db
ports:
- '27017-27019:27017-27019'
networks:
- backend-net
# Nodejs API
backend:
image: DOCKERHUBHUSER/DOCKERHUB_REPO:prod-backend
restart: always
depends_on:
- database
env_file:
- .prod.env
build:
context: ./api
dockerfile: Dockerfile-PROD-API
container_name: backend
networks:
- backend-net
# Nginx and compiled angular app
frontend:
image: DOCKERHUBHUSER/DOCKERHUB_REPO:prod-frontend
restart: always
depends_on:
- backend
build:
context: .
dockerfile: Dockerfile-PROD-UI
ports:
- "8180:80"
container_name: frontend
networks:
- backend-net
networks:
backend-net:
driver: bridge
volumes:
db-data:
name: db-data
external: true
I am using Docker Toolbox on Windows 10 Home. I am not able to see the changes in my code on the docker-container.
My docker-compose.yml file looks like this
version: "3.7"
services:
flask:
build: ./flask
container_name: flask
restart: always
environment:
- APP_NAME=MyFlaskApp
expose:
- 8080
volumes:
- ./flask:/app
nginx:
build: ./nginx
container_name: nginx
restart: always
ports:
- "80:80"
And my Dockerfile looks like this
FROM python:3.7.2-stretch
# Set the working directory to /app
WORKDIR /app
# Copy the current directory contents into the container at /app
ADD . /app
# Install the dependencies
RUN pip install -r requirements.txt
# run the command to start uWSGI
CMD ["uwsgi", "app.ini"]
My folder structure is like this
-project
- flask
- app.ini
- Dockerfile
- requirements.txt
- run.py
-nginx
- Dockerfile
- nginx.conf
I'm pretty sure everything is in order here but I still can't make live changes to the server
Hello i tried to build docker-compose in my project with these structure file:
app/
-front-end/src/Components
-back-end/images
but when i run build i have these error with img relative url:
frontend_1 | Module not found: Can't resolve '../../../../../back-end/images'
And these is my docker-compose file:
version: '2'
services:
backend:
network_mode: host
build: ./back-end/
ports:
- "6200:6200"
volumes:
- ./back-end:/usr/src/app
frontend:
build: ./front-end/
ports:
- "3000:3000"
volumes:
- ./front-end:/usr/src/app
depends_on:
- backend
My frontend Dockerfile:
FROM node:10.15.3
RUN mkdir -p /usr/src/app
WORKDIR /TuKanasta
EXPOSE 3000
CMD ["npm", "start"]
the backend Dockerfile:
FROM node:10.15.3
RUN mkdir -p /usr/src/app
WORKDIR /TuKanasta
RUN npm install -g nodemon
EXPOSE 4000
CMD [ "npm", "start" ]
Note: My project run 100 % without docker.
volumes:
- ./back-end:/usr/src/app
...
volumes:
- ./front-end:/usr/src/app
If set in the same image, the second bind mount volume would overwrite the first /usr/src/app content, as illustrated in gladiusio/gladius-archive-node issue 4.
If set in two different images, /usr/src/app in frontend1 would not be able to see back-end, copied in /usr/src/app separate volume of backend service.
Declaring the volume as external might help, as illustrated in this thread.
Or copying into an existing volume (shown here)
I keep getting errors that my modules don't exist when I'm running nodemon inside Docker and I save the node files. It takes a couple of saves before it throws the error. I have the volumes mounted like how the answers suggested here but I'm still getting the error and I'm not too sure what's causing it.
Here is my docker-compose.yml file.
version: "3.7"
services:
api:
container_name: api
build:
context: ./api
target: development
restart: on-failure
ports:
- "3000:3000"
- "9229:9229"
volumes:
- "./api:/home/node/app"
- "node_modules:/home/node/app/node_modules"
depends_on:
- db
networks:
- backend
db:
container_name: db
command: mongod --noauth --smallfiles
image: mongo
restart: on-failure
volumes:
- "mongo-data:/data/db"
- "./scripts:/scripts"
- "./data:/data/"
ports:
- "27017:27017"
networks:
- backend
networks:
backend:
driver: bridge
volumes:
mongo-data:
node_modules:
Here is my docker file:
# Ger current Node Alpine Linux image.
FROM node:alpine AS base
# Expose port 3000 for node.
EXPOSE 3000
# Set working directory.
WORKDIR /home/node/app
# Copy project content.
COPY package*.json ./
# Development environment.
FROM base AS development
# Set environment of node to development to trigger flag.
ENV NODE_ENV=development
# Express flag.
ENV DEBUG=app
# Run NPM install.
RUN npm install
# Copy source code.
COPY . /home/node/app
# Run the app.
CMD [ "npm", "start" ]
# Production environment.
FROM base AS production
# Set environment of node to production to trigger flag.
ENV NODE_ENV=production
# Run NPM install.
RUN npm install --only=production --no-optional && npm cache clean --force
# Copy source code.
COPY . /home/node/app
# Set user to node for better security.
USER node
# Run the app.
CMD [ "npm", "run", "start:prod" ]
Turns out I didn't put my .dockerignore in the proper folder. You're supposed to put it in the context folder.