Docker build not working

[fpaparoni]

I'm trying to make some changes to the sourcecode but if I build the Docker image using the following standard command

docker build -t kubebox-custom . 

I receive this error

 "/kubebox/bundle.js": not found

in response to this command from the Dockefile

 [stage-1 5/7] COPY --from=builder /kubebox/bundle.js /kubebox/client.js:

I tried to enter in the builder container and I can see there isn't a bundle.js file

Is there something I'm doing wrong or isn't the builder container working properly?

[fpaparoni]

The problem seems related to some changes in Node 17 due to obsolete version of SSL.

I tried to locally set nvm to use node 16 and "npm run bundle" works but anyway it produces bundle.js in a different path, dist/js/bundle.js with the webpack configuration so I suppose there is something wrong with the Dockerfile

[astefanutti]

Thanks for the analysis. The Dockerfile relies on Node 12 which is indeed rather old. If you have an updated Dockerfile that works with a more recent version of Node, feel free to create a PR, I'd be happy to merge it!

[fpaparoni]

No sorry I'm trying to understand, but it seems like the actual Dockerfile (apart from this problem related to Node 17) has some problems related to paths.

I see problems this row in the Dockerfile

COPY --from=builder /kubebox/bundle.js /kubebox/client.js

because bundle.js is generated in a different path from webpack and client.js is inside another directory (lib). Is it an old version of Dockerfile of this project?

[astefanutti]

Ah got you. That's the Dockerfile for the project, so it's supposed to work. If it doesn't that's possible it's been broken, probably with some Webpack update.

[fpaparoni]

I changed this row

COPY --from=builder /kubebox/dist/js/bundle.js /kubebox/client.js

and the build works, but if I try to run it I have the execution of the node command directly in my console. I need to start it as I have done with the image published on dockerhub, to use it with the browser.

I saw there are two Dockerfile, one at root level and another inside docs. Which is the one used for the image kubebox which I installed in a remote cluster and (I know it should be simply docker run -t IMAGENAME) which is the command to run it?

[astefanutti]

The Dockerfile in docs is the one that's used to serve the Web interface in-cluster, from a Pod: https://github.com/astefanutti/kubebox/blob/0448a18e9e6acabba004d44fd1d0625027ba48ed/kubernetes.yaml#L58C16-L58C42

The Dockerfile at the root directory, is to run the CLI in container, either with kubectl e.g.:

$ kubectl run kubebox -it --rm --env="TERM=xterm" --image=astefanutti/kubebox --restart=Never

Or directly with Docker:

$ docker run -it --rm -v ~/.kube/:/home/node/.kube/:ro astefanutti/kubebox

So to use it in the browser, you need the former with the Web interface.

[fpaparoni]

ok great, it is like I supposed. But if I change something on the "main" folder, is there the need to copy something on the docs folder? Because I saw in docs folder there is only a kubebox.js without a relationship with the "main" folder. Is there some script/target to run to update also docs folder from the main folder?

[astefanutti]

Right, you need to run npm run browserify to update the content of the docs directory.

[fpaparoni]

I just added a pull request for this issue, thank you for your explanations