Sometimes, we want to fix ‘Cannot find module’ error for a Node.js app running in a Docker compose environment.
In this article, we’ll look at how to fix ‘Cannot find module’ error for a Node.js app running in a Docker compose environment.
How to fix ‘Cannot find module’ error for a Node.js app running in a Docker compose environment?
To fix ‘Cannot find module’ error for a Node.js app running in a Docker compose environment, we need to install our app’s dependency in the container.
To do this, we write
FROM node:boron
# 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
# Bundle app source
COPY . /usr/src/app
EXPOSE 8080
CMD [ "npm", "start" ]
in our Dockerfile for creating our app’s container.
We copy package.json to our container with COPY package.json /usr/src/app/.
And we install the packages with RUN npm install.
Conclusion
To fix ‘Cannot find module’ error for a Node.js app running in a Docker compose environment, we need to install our app’s dependency in the container.
