feat(blog): add Cozystack v1.5.0 release announcement

[Timur Tukaev (tym83)]

Summary

Blog post announcing the Cozystack v1.5.0 release.

What

• New page bundle content/en/blog/2026-06-28-cozystack-1-5-.../ with the release announcement and a 1200x630 social banner.
• Covers all v1.5.0 highlights: Gateway API via Cilium, TLS for managed databases and messaging, out-of-the-box backups with a platform-managed BackupClass, Flux v2.8, flux-shard-operator, operator-provided wildcard certificates, GPU passthrough, deletion protection, and runtime-populated dashboard dropdowns.
• Standard closing blocks: Documentation, Release links, and Join the community.

Why

• Fact-checked against the official v1.5.0 GitHub release; corrected the ClickHouse backup strategy (Altinity, not CNPG) and the Gateway API doc link (the path in the upstream release notes returns 404; the live path is used instead).
• All documentation links verified to resolve (HTTP 200).
• SEO/GEO: concise meta description, descriptive alt text, banner optimized to JPG (~57 KB) for Core Web Vitals, dimensions correct for og:image / twitter:image / BlogPosting schema.

Summary by CodeRabbit

• New Features
  • Published the Cozystack v1.5 release notes with user-facing highlights, including Gateway API support, TLS for managed services, default backups, Flux sharding, GPU passthrough improvements, and deletion protection.
  • Added updates on dashboard dropdowns, wildcard certificates, platform UI/RBAC improvements, version bumps, upgrade notes, and community links.

[netlify]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 57b56575-3024-4922-804e-a333513be33c

📥 Commits

Reviewing files that changed from the base of the PR and between 0c52332 and 3097fda.

⛔ Files ignored due to path filters (1)

• content/en/blog/2026-06-28-cozystack-1-5-gateway-api-default-backups-flux-sharding-tls-gpu-passthrough/cozystack-1-5-banner.jpg is excluded by !**/*.jpg

📒 Files selected for processing (1)

• content/en/blog/2026-06-28-cozystack-1-5-gateway-api-default-backups-flux-sharding-tls-gpu-passthrough/index.md

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📝 Walkthrough

Walkthrough

A new blog post for the Cozystack v1.5 release is added at content/en/blog/2026-06-28-.../index.md. The post covers Gateway API via Cilium, managed-service TLS, default backups, Flux v2.8 sharding, wildcard certificates, GPU passthrough improvements, deletion protection, platform component version bumps, upgrade notes, and contributor acknowledgements.

Changes

Cozystack v1.5 Release Blog Post

Layer / File(s)	Summary
Full blog post content/en/blog/2026-06-28-cozystack-1-5-gateway-api-default-backups-flux-sharding-tls-gpu-passthrough/index.md	Adds front matter, main feature narrative (Gateway API, TLS, backups, Flux sharding, GPU passthrough, deletion protection, dashboard dropdowns), "Also in v1.5.0" highlights, platform component version table, upgrade notes, and contributor/community links.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Suggested reviewers

• kvaps
• lllamnyp

Poem

🐇 A blog post hops in, fresh and bright,
v1.5 takes its glorious flight!
Gateway, TLS, backups galore,
GPU passthrough and so much more—
The warren rejoices, let's celebrate tonight! 🎉

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: adding a Cozystack v1.5.0 release announcement blog post.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch blog/cozystack-1-5

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[gemini-code-assist]

Code Review

This pull request adds a new blog post announcing the release of Cozystack v1.5.0, which details major updates including Gateway API support via Cilium, default backups, Flux sharding, TLS for managed services, and GPU passthrough. There are no review comments, so I have no feedback to provide.

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