[docs] Dedicated docs on how to skip building an image on pipeline run

[wjayesh]

Describe changes

I added documentation detailing how to skip building an image every time a pipeline is run.

It includes:

• how to do it
• what the image should contain and how to build it
• where users can use this feature

Pre-requisites

Please ensure you have done the following:

• I have read the CONTRIBUTING.md document.
• If my change requires a change to docs, I have updated the documentation accordingly.
• I have added tests to cover my changes.
• I have based my new branch on develop and the open PR is targeting develop. If your branch wasn't based on develop read Contribution guide on rebasing branch to develop.
• If my changes require changes to the dashboard, these changes are communicated/requested.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Other (add details above)

[htahir1]

There is no change to toc.md?

I think we need to talk about this in a sync way

[wjayesh]

Good catch @htahir1, i updated the toc and added other changes. open to chatting whenever you have time

[htahir1]

apart from my comments, id point you to this SDK docs page:

I like how this frames it as the "build process". I think what we need is to split up into two chapters:

• How to reuse a build (the only mention we have of the build id is https://docs.zenml.io/how-to/use-configuration-files/what-can-be-configured#build-id and https://docs.zenml.io/how-to/customize-docker-builds/use-code-repositories-to-speed-up-docker-build-times and maybe https://docs.zenml.io/how-to/customize-docker-builds/docker-settings-on-a-pipeline .
  Here i'd take about what a build even is , and tell people how you can use a build_id to reuse it, and that code repos and artifact store uploads automate that part of it

• How to use an existing image / How to skip that zenml builds your image: This is what you have tackled here.

In addition to all this feedback, id love what @schustmi has to say about this

[htahir1]

@wjayesh what about my suggestion to split into more pages ?

[wjayesh]

@htahir1 i agree with it and will be adding it before i request your review again

[htahir1]

As you did a move now, we need a redirect from the yaml file

[htahir1]

Yeah so i think there is a fundamental misunderstanding here about whether the code should be inside or outside the image, but aside from that we're on a good track

[htahir1]

Ok way better! Just one small thing but otherwise approved!