Enable bootstrapping statefulsets

[abdurrehman107]

What this PR does:
This PR enables bootstrapping StatefulSets. The controller:

1. Fetches the EtcdCluster resource.
2. Checks for an existing StatefulSet:
   • If missing and Spec.Size > 0, creates a StatefulSet with replicas = 0.
3. Sets ownership using SetControllerReference for proper garbage collection.

It follows the workflow mentioned here.

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[ahrtr]

Thanks @abdurrehman107 for the PR. Based on our discussion in last WG meeting, @ Gaurav Dasson is supposed to deliver a PR for this. I am not sure what's his progress so far. Let me ping him in slack.

Also I'd like to see a complete PR to transfer all the implementation of syncHandler (around 300 -400 lines of code).

[ahrtr]

@abdurrehman107 since there is no response from Gaurav Dasson, please feel free to continue to work on this. Could you deliver a complete PR to transfer all the implementation of syncHandler (around 300 -400 lines of code)?

[ahrtr]

The goal is to implement the initial Reconcile workflow based on syncHandler . Please ensure that you verify it in a K8s cluster. thx

[abdurrehman107]

Could you deliver a complete PR to transfer all the implementation of syncHandler (around 300 -400 lines of code)?

Yes I can. I'll ask for help in the wg slack channel.

Please ensure that you verify it in a K8s cluster. thx

Aighty.

[gdasson]

@abdurrehman107 , @ahrtr : Sorry, I had to be away from work as I had some viral symptoms. I'll start looking at this work from today onwards. Thanks.

[abdurrehman107]

I hope you're well @gdasson . I have made a lil progress. I dont mind getting on a call later today or tomorrow briefing you about it. Please lemme know over slack of when we can schedule a syncup.

[ahrtr]

Thanks both @gdasson and @abdurrehman107 for the feedback. We definitely need more contributors. But in the very first step, I'd like to we have a skeleton implementation for the Reconcile as soon as possible, so as to unblock & breakdown the following tasks.

@abdurrehman107 Since you have already started working on this for 1+ weeks, please continue to work on it. Are you able to deliver a PR per #12 (comment) before our next working group meeting (Jan. 7th)?

[abdurrehman107]

Yes we can have the sync handler function implementation by 7th Jan.

[gdasson]

@abdurrehman107 @ahrtr : I worked on this over this weekend and I tried moving most of the logic from syncHandler under the Reconcile loop along with a base/inital draft type code. I have kept my code in a forked branch. Please review here:
main...gdasson:etcd-operator:main

If this looks fine for a starting point/skeleton, we can then start to refine it further. If you guys feel fine after the review, I can either add this in Abdur's PR or open a new one.

@abdurrehman107 : I can try to meet this coming week over a call to discuss and syncup?

[ahrtr]

Please review here:
main...gdasson:etcd-operator:main

Thanks @gdasson. It is almost identical to the existing implementation, and it's exactly what I want. I just expect a base/foundation asap for anyone to continue to work on it. So please raise a PR, thanks.

As a new team, we need to work together more to get used to each other and avoid overlapping tasks. I’m hopeful that our teamwork will be much smoother going forward.

[abdurrehman107]

Hey @gdasson, thank you for the work. Umm I was completely unaware that you were working on this. I've been working at defining the skeleton, and I was almost done. @ahrtr I think I'll drop on it and work on this scaffold @gdasson has pushed?

[nayihz]

I worked on this over this weekend and I tried moving most of the logic from syncHandler under the Reconcile loop along with a base/inital draft type code. I have kept my code in a forked branch. Please review here:
main...gdasson:etcd-operator:main

You can send a draft PR first.

[gdasson]

Yes, I am working on one. I'll raise a PR tomorrow.