docs(kubernetes): use v4 helm chart instead of beta

[mstruebing]

✅ Checklist

• I have followed every step in the contributing guide
• The PR title follows the convention.
• I ran and tested the code works

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Testing

[Describe the steps you took to test this change]

I've executed the commands on my own Kubernetes cluster and it works.

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Changelog

[Short description of what has changed]

Updated the documentation to use the latest helm chart (v4) instead of beta.

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Screenshots

[Screenshots]

💯

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Latest commit: 2a9b9ea

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[coderabbitai]

Walkthrough

This pull request updates version identifiers in the Kubernetes self-hosting documentation from beta versions to stable releases. The changes replace version references (4.0.0-beta, 4.0.0-beta.5, ~4.0.0-beta) with their stable equivalents (4.0.0, 4.0.5, ~4.0.0) across multiple helm commands and configuration examples within the documentation file.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Single file modified with homogeneous changes (repetitive version string replacements)
• Documentation-only updates with no functional code logic
• Low cognitive load required to verify consistency of version updates

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately reflects the main change: updating Kubernetes documentation to use the stable v4 Helm chart instead of beta versions.
Description check	✅ Passed	The PR description follows the template structure and includes all required sections with substantive content: checklist completed, testing details provided, changelog entry added, and screenshot included.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

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

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between f7cb637 and 2a9b9ea.

📒 Files selected for processing (1)

• docs/self-hosting/kubernetes.mdx (4 hunks)

🧰 Additional context used

🧠 Learnings (5)

📓 Common learnings

Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 2195
File: hosting/k8s/helm/Chart.yaml:1-18
Timestamp: 2025-06-25T13:18:44.103Z
Learning: For the Trigger.dev Helm chart, the chart name should be "trigger" (not "trigger-v4") since this is the first official chart release. Helper templates should use the actual chart name from .Chart.Name rather than hardcoded prefixes.

Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 2195
File: hosting/k8s/helm/templates/extra-manifests.yaml:1-4
Timestamp: 2025-06-25T13:18:04.827Z
Learning: In the Trigger.dev v4 Helm chart, the user prefers to rely on documentation and examples in values files rather than implementing defensive coding in templates, particularly for features like extraManifests where proper usage is documented.

Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 2195
File: hosting/k8s/helm/values.yaml:22-51
Timestamp: 2025-06-25T13:20:17.174Z
Learning: In the Trigger.dev Helm chart values.yaml, the maintainer prefers to use explicit comprehensive warnings for security-sensitive default values rather than implementing secure-by-default behavior that would fail installation. The project uses deterministic default secrets with clear "TESTING ONLY" warnings and instructions for production deployment.

📚 Learning: 2025-06-25T13:18:44.103Z

Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 2195
File: hosting/k8s/helm/Chart.yaml:1-18
Timestamp: 2025-06-25T13:18:44.103Z
Learning: For the Trigger.dev Helm chart, the chart name should be "trigger" (not "trigger-v4") since this is the first official chart release. Helper templates should use the actual chart name from .Chart.Name rather than hardcoded prefixes.

Applied to files:

• docs/self-hosting/kubernetes.mdx

📚 Learning: 2025-06-25T13:20:17.174Z

Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 2195
File: hosting/k8s/helm/values.yaml:22-51
Timestamp: 2025-06-25T13:20:17.174Z
Learning: In the Trigger.dev Helm chart values.yaml, the maintainer prefers to use explicit comprehensive warnings for security-sensitive default values rather than implementing secure-by-default behavior that would fail installation. The project uses deterministic default secrets with clear "TESTING ONLY" warnings and instructions for production deployment.

Applied to files:

• docs/self-hosting/kubernetes.mdx

📚 Learning: 2025-06-25T13:18:04.827Z

Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 2195
File: hosting/k8s/helm/templates/extra-manifests.yaml:1-4
Timestamp: 2025-06-25T13:18:04.827Z
Learning: In the Trigger.dev v4 Helm chart, the user prefers to rely on documentation and examples in values files rather than implementing defensive coding in templates, particularly for features like extraManifests where proper usage is documented.

Applied to files:

• docs/self-hosting/kubernetes.mdx

📚 Learning: 2025-02-10T10:54:17.345Z

Learnt from: zvictor
Repo: triggerdotdev/trigger.dev PR: 1686
File: packages/build/src/extensions/python.ts:85-87
Timestamp: 2025-02-10T10:54:17.345Z
Learning: In Python-related Dockerfiles for trigger.dev, avoid adding explicit Python version pinning as the base image already provides conservative version management. Additional pinning would unnecessarily slow down builds.

Applied to files:

• docs/self-hosting/kubernetes.mdx

🔇 Additional comments (2)

docs/self-hosting/kubernetes.mdx (2)

64-64: Version updates are consistent and well-tested. ✓

All beta version references have been updated to stable releases with a consistent strategy:

• Flexible minor-version ranges (~4.0.0) for testing/standard deployments
• Pinned versions (4.0.5) for production stability

The changes align with the stable v4 Helm chart release and have been validated on a live cluster per the PR description.

Also applies to: 110-110, 114-114, 174-174, 492-492, 499-499

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112-114: Comment clarifies the version strategy well.

The "# Latest v4" comment helps users understand the difference between the two version commands above it (specific version vs. latest stable).

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[nicktrn]

thanks @mstruebing 🙏