Containerise React Application

Applications are built to run in a specific environment. Something I’ve seentoo often is a new developer cloning a project to find that it doesn’t run on the

Neeraj Dana
Neeraj Dana

Applications are built to run in a specific environment. Something I’ve seen
too often is a new developer cloning a project to find that it doesn’t run on the
Node version she has installed. While this is trivial to handle sometimes the
problems run much deeper.

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We’re not building in isolation and the larger the team the greater the impact
of our different development environments. It’s easy for a single developer to
keep track of everything that’s going on on their machine. It takes a lot of
effort as the number of people grows.

We want our application to have a list of requirements and the ability to run it
with a single command. Containerizing checks both boxes.
We can run our app in a Docker container to make sure that everyone is
working in the same isolated environment. Developers won’t be wasting their
time fighting obscure build problems.

Docker can be a bit daunting at first but you don’t need to become proficient
with it to use it. You can find a good preconfigured Dockerfile that works with
React applications with a simple Google search.It makes it easier to run multiple applications at once. If you’re writing the
front-end for an application made up of multiple services you can run them all
with a few commands. A few years ago I was working on a React application
for a system that was made of a few Spring Boot microservices. I had little
knowledge of how to work with them but being able to spin them up locally
made my life a lot easier.

Something you need to be careful when using Dockerfiles is server-side
rendering. If you’re making a server-side request to another container it may
not resolve. Due to how Docker’s networking works if you need to send a
request to another container you need to reference it by its name. Specifying
localhost and a port won’t work.

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