Wasp•10mo ago

overwrite entire dockerfile

Pretty much the challenge I'm having is being able to replace the NODE_ENV during build time. I see that

production

production

is hardcoded into the default wasp dockerfile.

Appending a new dockerfile at the end does not help me much I don't think.

kapa.ai•3/1/25, 4:28 PM

Hi @ayo. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

kapa.ai•3/1/25, 4:28 PM

----------------------
To address your challenge of replacing the

NODE_ENV

NODE_ENV

during build time and overwriting the entire Dockerfile, Wasp provides a way to customize the Dockerfile completely. Here's how you can do it:

Create a new DockerfileDockerfile in your project's root directory (the same folder where
```
main.wasp
```
```
main.wasp
```
is located).
In this new DockerfileDockerfile, you can define your own multi-stage build process and set the
```
NODE_ENV
```
```
NODE_ENV
```
as needed.
Wasp will use your custom DockerfileDockerfile instead of the default one when building your application.

This approach allows you to have full control over the build process and environment variables.

Here's the relevant documentation:

Customizing the Dockerfile

Key points from the documentation:

If Wasp finds a Dockerfile in the project's root, it will use that file instead of the default one.
You can choose not to use any of Wasp's build stages and have your own custom Dockerfile used as-is.
Make sure to supply ENTRYPOINTENTRYPOINT in your final build stage.

To see what your project's Dockerfile will look like (including your customizations), you can run:

wasp dockerfile

wasp dockerfile

This approach should allow you to set the

NODE_ENV

NODE_ENV

to whatever value you need during the build process, giving you full control over the environment configuration.

Remember that by completely replacing the Dockerfile, you'll need to ensure that all necessary steps for building and running your Wasp application are included in your custom Dockerfile.
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
----------------------

kapa.ai•3/1/25, 4:28 PM

Sorry @ayo, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:

Perhaps try again in 15mins?

ayoOP•3/1/25, 4:32 PM

this is what wasp dockerfile gives me @kapa.ai

message.txt6.03KB

miho•3/1/25, 7:06 PM

From the docs:

Since the last definition in a Dockerfile wins, you can override or continue from any existing build stages. You can also choose not to use any of our build stages and have your own custom Dockerfile used as-is.

So, if you copy paste the whole Dockerfile from the initial stage, your whole Dockerfile will be used.

Why do you need to change the

NODE_ENV

NODE_ENV

? This env var is used to signal to the bundlers it should be a production build, not a dev build. This env var shouldn't be used to signal e.g. staging env. You should use a separate env var for that e.g. APP_ENVAPP_ENV.

ayoOP•3/1/25, 7:12 PM

Thank you, make sense.

ayoOP•3/1/25, 7:14 PM

I'll try this and update the channel .
I read past Since the last definition in a Dockerfile winsSince the last definition in a Dockerfile wins too quickly

ayoOP•3/3/25, 11:24 PM

using a different env var worked perfectly. btw @miho

overwrite entire dockerfile

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