Use async native way to get server certificate

[NickCao]

Summary by CodeRabbit

• Bug Fixes
  • Improved cancellation responsiveness for background operations. Now, when a cancellation is triggered, pending tasks are promptly abandoned rather than waiting to complete, leading to a smoother and more efficient user experience.
• New Features
  • Introduced an enhanced method for obtaining SSL certificates, improving connection establishment without server identity verification.

[coderabbitai]

Walkthrough

This pull request modifies the ssl_channel_credentials function to implement an asynchronous approach for obtaining SSL certificates. The previous synchronous method using run_sync and ssl.get_server_certificate has been replaced with asyncio.open_connection, which allows for establishing connections without server identity verification. The SSL context is created without certificate validation, and the function retains its error handling for socket-related exceptions.

Changes

File(s)	Change Summary
packages/jumpstarter/.../grpc.py	Replaced run_sync with asyncio.open_connection in ssl_channel_credentials for asynchronous SSL certificate retrieval without server verification. Error handling for socket exceptions remains unchanged.

Possibly related PRs

• chore(deps): bump k8s.io/client-go from 0.34.1 to 0.35.3 in /controller/deploy/operator jumpstarter#378: The changes in the main PR directly modify the ssl_channel_credentials function in a way that aligns with the asynchronous modifications made in the retrieved PR, indicating a strong relationship between the two.

Suggested reviewers

• mangelajo

Poem

I'm a rabbit hopping through lines of code,
Skipping errors on a digital road.
With async calls and certs in tow,
My connections flourish, watch them grow!
Hopping through bytes, with joy I bestow.
🐰💻

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📥 Commits

Reviewing files that changed from the base of the PR and between 267f209 and 77b0b95.

📒 Files selected for processing (1)

• packages/jumpstarter/jumpstarter/common/grpc.py (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• packages/jumpstarter/jumpstarter/common/grpc.py

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• GitHub Check: Redirect rules - jumpstarter-docs
• GitHub Check: Header rules - jumpstarter-docs
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• GitHub Check: e2e
• GitHub Check: pytest-matrix (3.13)
• GitHub Check: build-and-push-image (jumpstarter-dev/jumpstarter-utils Dockerfile.utils)

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