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@perkinsjr perkinsjr commented Jul 28, 2025

This PR adds or updates the Zero-Downtime API Deployment.mdx file in the API documentation.

Summary by CodeRabbit

  • Documentation
    • Added a comprehensive glossary entry on Zero-Downtime API Deployment, covering key strategies (blue-green, canary, rolling updates), best practices, and relevant tools.

@perkinsjr perkinsjr requested a review from MichaelUnkey as a code owner July 28, 2025 06:41
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coderabbitai bot commented Jul 28, 2025

Walkthrough

A new glossary article documenting zero-downtime API deployment strategies is added. The MDX file includes front matter metadata and comprehensive content covering definitions, deployment strategies (blue-green, canary, rolling updates), challenges, best practices, relevant tools, case studies, and conclusions.

Changes

Cohort / File(s) Change Summary
Glossary Documentation
apps/www/content/glossary/zero-downtime-api-deployment.mdx
New MDX file added with YAML front matter (title, description, slug, etc.) and comprehensive documentation content covering zero-downtime API deployment strategies, challenges, best practices, tooling, and real-world case studies.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Suggested reviewers

  • MichaelUnkey
  • chronark

Poem

🐰 A glossary grows, with wisdom so clear,
Zero-downtime paths for deployments dear,
Blue-green and canary strategies blend,
No downtime, no stress—smooth updates we send! 🚀

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Description Check ⚠️ Warning The pull request description is largely incomplete compared to the required template. The provided description is only a single sentence that briefly summarizes what was done, but it is missing nearly all required sections including the structured "What does this PR do?" section, issue reference (no "Fixes #" statement), type of change selection, testing instructions, and completion of the required checklist. While the description is on-topic and not entirely off-target, it falls well short of the template structure and required information needed for a comprehensive PR description.
✅ Passed checks (2 passed)
Check name Status Explanation
Title Check ✅ Passed The PR title "Add or update Zero-Downtime API Deployment in Glossary" clearly relates to the main change in the pull request, which adds a new MDX file documenting Zero-Downtime API Deployment in the glossary section. The title is concise, descriptive, and specific enough that a teammate reviewing the history would understand the primary change. While the phrase "or update" introduces slight vagueness when the change is specifically adding a new file, the title remains accurate and communicates the core intent effectively.
Docstring Coverage ✅ Passed No functions found in the changes. Docstring coverage check skipped.
✨ Finishing touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch richard/add_zero-downtime-api-deployment_1753684905940

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Actionable comments posted: 1

🧹 Nitpick comments (1)
apps/www/content/glossary/zero-downtime-api-deployment.mdx (1)

90-92: Enhance case study section with specific details and citations.

The case study section mentions Amazon and Netflix implementing zero-downtime deployments, but lacks specific details, dates, or citations. Consider adding links to published case studies, blog posts, or documentation that substantiate these claims and provide readers with concrete examples to learn from.

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 53825ec and e98d74e.

📒 Files selected for processing (1)
  • apps/www/content/glossary/zero-downtime-api-deployment.mdx (1 hunks)
🧰 Additional context used
📓 Path-based instructions (1)
**/*

📄 CodeRabbit inference engine (.cursor/rules/analyze-issue.mdc)

Enforce 300-line file limit where applicable

Files:

  • apps/www/content/glossary/zero-downtime-api-deployment.mdx
🔇 Additional comments (2)
apps/www/content/glossary/zero-downtime-api-deployment.mdx (2)

1-53: Frontmatter metadata is well-structured.

The YAML frontmatter is properly formatted with comprehensive metadata including title, description, takeaways, FAQ, historical context, and recommended reading. The structure aligns with glossary documentation standards.


55-98: Content is comprehensive, well-organized, and technically accurate.

The article effectively covers zero-downtime deployment concepts, strategies (blue-green, canary, rolling updates), challenges, best practices, and tooling. The markdown formatting is clean, and the embedded table is well-structured. Technical terminology is used correctly and concepts are explained clearly for the intended audience.

Comment on lines +28 to +35
- url: https://medium.com/encora-technology-practices/zero-downtime-deployment-techniques-rolling-update-159564793b2c
title: "Zero Downtime Deployment Techniques: Rolling Update"
- url: https://www.informatica.com/resources/articles/zero-downtime-deployment-strategies.html
title: Zero Downtime Deployment Strategies
- url: https://www.statsig.com/perspectives/how-to-achieve-a-zero-downtime-deployment
title: How to achieve a zero downtime deployment
- url: https://www.reddit.com/r/softwaredevelopment/comments/xpg63e/best_practices_for_avoiding_downtime_when_making/
title: Best practices for avoiding downtime when making changes to the API
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

Verify that all external recommended reading links are current and accessible.

The recommended reading section references four external URLs. These should be verified to ensure they are still valid, accessible, and provide relevant content to readers.


🏁 Script executed:

#!/bin/bash
# Description: Verify all external links in the recommended reading section are accessible

urls=(
  "https://medium.com/encora-technology-practices/zero-downtime-deployment-techniques-rolling-update-159564793b2c"
  "https://www.informatica.com/resources/articles/zero-downtime-deployment-strategies.html"
  "https://www.statsig.com/perspectives/how-to-achieve-a-zero-downtime-deployment"
  "https://www.reddit.com/r/softwaredevelopment/comments/xpg63e/best_practices_for_avoiding_downtime_when_making/"
)

for url in "${urls[@]}"; do
  status=$(curl -s -o /dev/null -w "%{http_code}" "$url")
  echo "URL: $url | HTTP Status: $status"
done

Length of output: 484


Fix the inaccessible Reddit link in the recommended reading section.

Three of the four external links are accessible (HTTP 200), but the Reddit URL returns HTTP 403 (Forbidden) and is not accessible. This link should be manually verified in a browser or replaced with an alternative resource to ensure readers can access all recommended references.

- url: https://www.reddit.com/r/softwaredevelopment/comments/xpg63e/best_practices_for_avoiding_downtime_when_making/
  title: Best practices for avoiding downtime when making changes to the API
🤖 Prompt for AI Agents
In apps/www/content/glossary/zero-downtime-api-deployment.mdx around lines 28 to
35 the Reddit link returns HTTP 403 and is inaccessible; verify the URL in a
browser and either fix it (use the canonical reddit.com URL with trailing slash
and proper user-agent-safe path) or replace it with a reachable alternative
resource about API downtime best practices (e.g., an accessible blog post,
official docs, or a Stack Overflow/engineering blog link), then update the YAML
entry so all recommended reading links return HTTP 200.

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Confirmed that this is accessible for a regular user.

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@perkinsjr Thank you for verifying! You're absolutely right. Reddit frequently blocks automated requests and scrapers with HTTP 403 responses while allowing normal browser traffic through. Since the link is accessible for regular users visiting the documentation, no changes are needed.

The automated check failed due to Reddit's anti-bot measures, but the link serves its intended purpose perfectly for human readers. 🐰


🐰📚
(Learning something new!)

@perkinsjr perkinsjr merged commit 2f02a96 into main Oct 17, 2025
7 checks passed
@perkinsjr perkinsjr deleted the richard/add_zero-downtime-api-deployment_1753684905940 branch October 17, 2025 12:38
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