Migrate away from deprecated ioutil

[sebrandon1]

ioutil has been deprecated since Go 1.16: https://go.dev/doc/go1.16#ioutil

Tracking issue: redhat-best-practices-for-k8s/telco-bot#52

[coderabbitai]

Walkthrough

Replaces deprecated ioutil.ReadFile and ioutil.WriteFile function calls with their modern equivalents from the os package. Removes now-unused ioutil imports. No changes to control flow or error handling semantics.

Changes

Cohort / File(s)	Summary
I/O API modernization pkg/cmd/render/render.go, pkg/operator/kube_cloud_config/bootstrap.go	Migrated from deprecated ioutil.ReadFile/ioutil.WriteFile to os.ReadFile/os.WriteFile; removed unused ioutil imports

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

• Changes are mechanical API replacements with identical semantics
• No logic modifications or error handling adjustments required
• Homogeneous pattern applied consistently across files

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📥 Commits

Reviewing files that changed from the base of the PR and between 1eb450a and abbd268.

📒 Files selected for processing (2)

• pkg/cmd/render/render.go (2 hunks)
• pkg/operator/kube_cloud_config/bootstrap.go (2 hunks)

🧰 Additional context used

📓 Path-based instructions (1)

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⚙️ CodeRabbit configuration file

-Focus on major issues impacting performance, readability, maintainability and security. Avoid nitpicks and avoid verbosity.

Files:

• pkg/cmd/render/render.go
• pkg/operator/kube_cloud_config/bootstrap.go

🔇 Additional comments (2)

pkg/cmd/render/render.go (1)

125-125: LGTM! Correct migration from deprecated ioutil.

The migration from ioutil.ReadFile to os.ReadFile (line 125) and from ioutil.WriteFile to os.WriteFile (line 160) is correct. Both replacements maintain identical behavior and error handling.

Also applies to: 160-160

pkg/operator/kube_cloud_config/bootstrap.go (1)

36-36: LGTM! Correct migration from deprecated ioutil.

The migration from ioutil.ReadFile to os.ReadFile at both locations (lines 36 and 48) is correct. Error handling and data flow remain unchanged.

Also applies to: 48-48

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: sebrandon1
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[openshift-ci]

@sebrandon1: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-aws-ovn	abbd268	link	true	/test e2e-aws-ovn

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