I have made a Docker image for a nodeJS and it is running in Local perfectly but in Production, I have to configure it with Nginx(Which I installed in the host machine). We normally did like
location /location_of_app_folder {
proxy_pass http://api.prv:51967/info;
}
How will I configure this in nginx for docker image and how to run docker image. We used pm2 in nodeJS wch I added in Docker file But it is running till I press ctrl+C.
FROM keymetrics/pm2:latest-alpine
RUN mkdir -p /app
WORKDIR /app
COPY package.json ./
COPY .npmrc ./
RUN npm config set registry http://private.repo/:_authToken=authtoken.
RUN npm install utilities#0.1.9
RUN apk update && apk add yarn python g++ make && rm -rf /var/cache/apk/*
RUN set NODE_ENV=production
RUN npm config set registry https://registry.npmjs.org/
RUN npm install
COPY . /app
RUN ls -al -R
EXPOSE 51967
CMD [ "pm2-runtime", "start", "pm2.json" ]
I am running the container with the command:
sudo docker run -it --network=host docker_repo_name
expose the docker image port and use the same nginx configuration, ex:
sudo docker run -it -p 51967:51967 docker_repo_name
Related
I am building a Node.JS application using Postgres as the database. I am using Docker/Docker compose for the development environment. I could dockerise my environment. However there is one issue remain which is the project is not refreshing or showing the latest changes using Nodemon. Basically it is not detecting the code changes.
I have a docker-compose.yaml file with the following code.
version: '3.8'
services:
web:
container_name: web-server
build: .
ports:
- 4000:4000
restart: always
This is my Dockerfile.
FROM node:14-alpine
RUN apk update && apk upgrade
RUN apk add nodejs
RUN rm -rf /var/cache/apk/*
COPY . /
RUN cd /; npm install;
RUN npm install -g nodemon
EXPOSE 4000
CMD ["npm", "run", "docker-dev"]
This is my docker-dev script in package.json file
"docker-dev": "nodemon -L --inspect=0.0.0.0 index.js"
When I spin up the environment running docker-compose up -d and go to the localhost:4000 on the browser, I can see my application up and running there. But when I make the changes to the code and refresh the page, the new changes are not there. It seems like Nodemon is not working. I had to remove Docker images and spin up the environment again to see the latest changes.
How can I fix it?
During development, I often use a raw node image and run it like this
docker run --rm -d -v $(pwd):/app --workdir /app -u $(id -u):$(id -g) -p 3000:3000 --entrypoint /bin/bash node -c "npm install && npm start"
The different parts of the command do the following
--rm remove the container when it exits
-d run detached
-v $(pwd):/app map the current directory to /app in the container
--workdir /app set the working directory in the container to /app
-u $(id -u):$(id -g) run the container with my UID and GID so any files created in the host directory will be owned by me
-p 3000:3000 map port 3000 to the host
--entrypoint /bin/bash set the entrypoint to bash
node run the official node image
-c "npm install && npm start" on container start, install npm packages and start the app
You can do something similar. If we replace a few things, this should match your project
docker run --rm -d -v $(pwd):/app --workdir /app -u $(id -u):$(id -g) -p 4000:4000 --entrypoint /bin/sh node:14-alpine -c "npm install && npm install -g nodemon && npm run docker-dev"
I've changed the entrypoint because Alpine doesn't have bash installed. The image is node:14-alpine. The port is 4000. And on start, you want it to install nodemon and run the docker-dev script.
I put the command in a shell script so I don't have to type it all out every time.
You are doing your changes in your local file system and not in the docker container file system.
You need to use a volume of you want to see your changes reflecting real time.
I'm trying to turn this nodeJS video game into a docker container:
https://github.com/navignaw/TooManyChefs
But I'm getting "ERR_EMPTY_RESPONSE" when I try to access the started docker container:
http://localhost:3000/
I think the issue is my dockerfile:
# pull official base image
FROM node:13.12.0-alpine
# set working directory
WORKDIR /usr/src/app
ENV PATH /app/node_modules/.bin:$PATH
COPY package*.json ./
RUN npm install
COPY . ./
EXPOSE 3000
CMD ["npm", "start"]
Docker commands:
docker build -t hal/chefs .
docker run -p 3000:3000 -d hal/chefs
Docker logs:
docker logs 92928695b528a7ed4059bcc32af1d58a309f855294b48d49c60a2bb977755c4e
> TooManyChefs# start /usr/src/app
> watchify -o js/bundle.js -v -d js/main.js
Can someone please give advice how I can fix or troubleshoot? I really appreciate your help!
-Hal
change the following line:
ENV PATH /app/node_modules/.bin:$PATH
to :
ENV PATH /usr/src/app/node_modules/.bin:$PATH
Edit-01:
Also update your npm install command to following:
npm install --no-optional && npm cache clean --force
Trying to build angular application in docker and run as container in my local using Node js.
I have used build image using below Dockerfile, but i am not sure what i am missing while running. Can someone point me out?
Dockerfile:
FROM node:10.15.3
ENV HOME=/home
WORKDIR $HOME
RUN npm config set strict-ssl false \
&& npm config set proxy http://proxy.xxxxxx.com:8080
COPY package.json .
RUN npm install
Image created with below command successfully
docker build -t example .
I am trying to run the image using below command, but it is not helping
docker run -p 4201:4200 example
your Dockerfile does not run/serve your application, in order to do that you have to:
install angular/cli
copy the app
run/serve the app
FROM node:10.15.3
RUN npm config set strict-ssl false \
&& npm config set proxy http://proxy.xxxxxx.com:8080
# get the app
WORKDIR /src
COPY . .
# install packages
RUN npm ci
RUN npm install -g #angular/cli
# start app
CMD ng serve --host 0.0.0.0
hope this helps.
Container need a foreground process running, then it will not exit. If not, the container will directly exit.
For your case, you need to COPY your nodejs project to container when docker build, and also start the project in CMD like CMD [ "npm", "start" ]. As the web server not exit, then your container will not exit.
A good article here for your reference on how to dockerizing a Node.js web app.
Just update your Dockerfile to achieve your goal for more options see here:
# base image
FROM node:12.2.0
RUN npm config set strict-ssl false \
&& npm config set proxy http://proxy.xxxxxx.com:8080
# install chrome for protractor tests
RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
RUN apt-get update && apt-get install -yq google-chrome-stable
# set working directory
WORKDIR /app
# add `/app/node_modules/.bin` to $PATH
ENV PATH /app/node_modules/.bin:$PATH
# install and cache app dependencies
COPY package.json /app/package.json
RUN npm install
RUN npm install -g #angular/cli#7.3.9
# add app
COPY . /app
# start app
CMD ng serve --host 0.0.0.0
Give a shot for the following Dockerfile as well!
FROM node:alpine
# get the app
WORKDIR /src
# install packages
RUN npm ci
RUN npm install -g #angular/cli
COPY package.json .
RUN npm install
COPY . .
# start app
CMD ["ng", "serve", "-o"]
I have a simple node app with the following Dockerfile:
FROM node:8-alpine
WORKDIR /home/my-app
COPY package.json .
COPY ./app ./app
COPY ./server.js ./
RUN rm -rf node_modules
RUN npm install \
npm run build
EXPOSE 3000
When I build the image with: docker build -t my-app:latest ., I attempt to run the app and it complains that some modules are missing.
When I go into the container via docker run -i -t my-app:latest /bin/sh I can see that the packages have not been installed. After manually running npm install in the container, it seems to work.
I can only conclude that from this RUN npm install not being executed correctly inside the container.
I'd like to run thumbd as a service inside a node Docker image! At the moment I'm just running it before I start my app, which is no use to me! Is there a way I could setup my Dockerfile to run it as an init.d service on startup without blocking any of my other docker commands?
My Dockerfile goes as follows:
FROM node:6.2.0
# Create app directory
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
# Install app dependencies
COPY package.json /usr/src/app/
RUN npm install
# Thumbd
RUN npm install -g thumbd
RUN mkdir -p /var/log/
RUN echo "" > /var/log/thumbd.log
RUN thumbd server --aws_key=<KEY> --aws_secret=<SECRET> --sqs_queue=<QUEUE> --bucket=<BUCKET> --aws_region=us-west-1 --s3_acl=public-read
# Bundle app source
COPY . /usr/src/app
EXPOSE 8080
CMD npm run build && npm start
It's probably easiest to run thumbd in it's own container due to the way it works without direct links to your application. Docker likes to push the idea of a single process per container too.
FROM node:6.2.0
# Thumbd
RUN set -uex; \
npm install -g thumbd; \
mkdir -p /var/log/; \
touch /var/log/thumbd.log
CMD thumbd server --aws_key=<KEY> --aws_secret=<SECRET> --sqs_queue=<QUEUE> --bucket=<BUCKET> --aws_region=us-west-1 --s3_acl=public-read
You can use Docker Compose to orchestrate running multiple containers in your project.
If you really want to run multiple processes in a container, use an init system like s6 or possibly supervisord.