dev.Dockerfile: add CGO_ENABLED build arg

[ZZiigguurraatt]

Allow defining the CGO_ENABLED variable so we can build development binaries that will work in a different type of container.

[gemini-code-assist]

Summary of Changes

Hello @ZZiigguurraatt, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the development build process by introducing a new configurable argument in the Dockerfile. This change provides greater flexibility in compiling development binaries, ensuring they can operate correctly across different container setups.

Highlights

• dev.Dockerfile Modification: Added the CGO_ENABLED build argument to dev.Dockerfile, which enables the creation of development binaries compatible with various container environments.

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[gemini-code-assist]

Code Review

This pull request adds a CGO_ENABLED build argument to dev.Dockerfile to allow for more flexible development builds. However, the new argument is declared but not actually used in the build process, making the change ineffective as is. My review points out this issue and suggests providing a default value for the argument, while also explaining that it needs to be passed to the make commands to have an effect on the Go build.

[gemini-code-assist]

This ARG is declared but it's not being used in the subsequent build steps, which means it currently has no effect. For this to work, CGO_ENABLED needs to be passed as an environment variable to the go install commands, which are run via make in this Dockerfile. You would need to modify the RUN command that invokes make to pass this environment variable.

It is also good practice to provide a default value. Given that GODEBUG=netdns=cgo is set elsewhere in the file, a default of 1 seems appropriate.

ARG CGO_ENABLED=1

[ZZiigguurraatt]

It is also good practice to provide a default value. Given that GODEBUG=netdns=cgo is set elsewhere in the file, a default of 1 seems appropriate.

ARG CGO_ENABLED=1

This is a good idea, I was not aware that you could use this syntax to provide a default. This should already be the default, but your recommendation is more explicit.

[ZZiigguurraatt]

This ARG is declared but it's not being used in the subsequent build steps, which means it currently has no effect. For this to work, CGO_ENABLED needs to be passed as an environment variable to the go install commands, which are run via make in this Dockerfile. You would need to modify the RUN command that invokes make to pass this environment variable.

I'm not sure if you are correct about this. I have tested this and it works as I expected it to.