Inside the Trenches of CI/CD
Inside the Trenches of CI/CD
Stories, insights, and opinions from the team behind Mergify

Julien Danjou
Sep 3, 2025
∙
3 min
read
Mergify CI Insights now supports Jenkins. With one plugin install, you get dashboards for flaky jobs, slow builds, reruns, and job costs in hours. Turn your Jenkins pipeline from a black box into clear visibility — and ship with confidence.
Stay ahead in CI/CD
Stay ahead in CI/CD
The latest blog posts, release news, and automation tips straight in your inbox
The latest blog posts, release news, and automation tips straight in your inbox

Oct 8, 2025
∙
4 min
read
Why WARNING Has No Place in Modern Logging
Most systems drown in meaningless WARNING logs. They waste money, obscure real errors, and help no one. Here’s why your next logging cleanup should start by deleting WARNING — and how structured logs make your production systems clearer, cheaper, and safer.

Mehdi Abaakouk

Oct 8, 2025
∙
4 min
read
Why WARNING Has No Place in Modern Logging
Most systems drown in meaningless WARNING logs. They waste money, obscure real errors, and help no one. Here’s why your next logging cleanup should start by deleting WARNING — and how structured logs make your production systems clearer, cheaper, and safer.

Mehdi Abaakouk

Oct 8, 2025
∙
4 min
read
Why WARNING Has No Place in Modern Logging
Most systems drown in meaningless WARNING logs. They waste money, obscure real errors, and help no one. Here’s why your next logging cleanup should start by deleting WARNING — and how structured logs make your production systems clearer, cheaper, and safer.

Mehdi Abaakouk

Oct 8, 2025
∙
4 min
read
Why WARNING Has No Place in Modern Logging
Most systems drown in meaningless WARNING logs. They waste money, obscure real errors, and help no one. Here’s why your next logging cleanup should start by deleting WARNING — and how structured logs make your production systems clearer, cheaper, and safer.

Mehdi Abaakouk

Oct 1, 2025
∙
5 min
read
AI Won't Replace Code Reviews, But It Can Fix Them
Code reviews often fail not because the code is wrong, but because no one knows why it was written that way. This post explores how AI-generated comments can add missing intent to pull requests—making both human and AI reviews smarter, faster, and more effective.

Alexandre Gaubert

Oct 1, 2025
∙
5 min
read
AI Won't Replace Code Reviews, But It Can Fix Them
Code reviews often fail not because the code is wrong, but because no one knows why it was written that way. This post explores how AI-generated comments can add missing intent to pull requests—making both human and AI reviews smarter, faster, and more effective.

Alexandre Gaubert

Oct 1, 2025
∙
5 min
read
AI Won't Replace Code Reviews, But It Can Fix Them
Code reviews often fail not because the code is wrong, but because no one knows why it was written that way. This post explores how AI-generated comments can add missing intent to pull requests—making both human and AI reviews smarter, faster, and more effective.

Alexandre Gaubert

Oct 1, 2025
∙
5 min
read
AI Won't Replace Code Reviews, But It Can Fix Them
Code reviews often fail not because the code is wrong, but because no one knows why it was written that way. This post explores how AI-generated comments can add missing intent to pull requests—making both human and AI reviews smarter, faster, and more effective.

Alexandre Gaubert

Sep 25, 2025
∙
4 min
read
Friends Don't Let Friends Use :latest
Floating versions like :latest, ^, and ~ promise convenience but deliver broken builds, hidden regressions, and supply chain risks. Here we explain why they undermine reproducibility and security and shows how to pin GitHub Actions, Docker images, and dependencies safely.

Mehdi Abaakouk

Sep 25, 2025
∙
4 min
read
Friends Don't Let Friends Use :latest
Floating versions like :latest, ^, and ~ promise convenience but deliver broken builds, hidden regressions, and supply chain risks. Here we explain why they undermine reproducibility and security and shows how to pin GitHub Actions, Docker images, and dependencies safely.

Mehdi Abaakouk

Sep 25, 2025
∙
4 min
read
Friends Don't Let Friends Use :latest
Floating versions like :latest, ^, and ~ promise convenience but deliver broken builds, hidden regressions, and supply chain risks. Here we explain why they undermine reproducibility and security and shows how to pin GitHub Actions, Docker images, and dependencies safely.

Mehdi Abaakouk

Sep 25, 2025
∙
4 min
read
Friends Don't Let Friends Use :latest
Floating versions like :latest, ^, and ~ promise convenience but deliver broken builds, hidden regressions, and supply chain risks. Here we explain why they undermine reproducibility and security and shows how to pin GitHub Actions, Docker images, and dependencies safely.

Mehdi Abaakouk

Sep 18, 2025
∙
6 min
read
Application vs. Database: Where Should Permissions Live?
Permissions drift is real: scattered checks, forgotten filters, and data leaks. PostgreSQL’s Row Level Security (RLS) flips the script: pushing verification into the database for stronger safety, but with trade-offs in debugging and performance.

Fabien Martinet

Sep 18, 2025
∙
6 min
read
Application vs. Database: Where Should Permissions Live?
Permissions drift is real: scattered checks, forgotten filters, and data leaks. PostgreSQL’s Row Level Security (RLS) flips the script: pushing verification into the database for stronger safety, but with trade-offs in debugging and performance.

Fabien Martinet

Sep 18, 2025
∙
6 min
read
Application vs. Database: Where Should Permissions Live?
Permissions drift is real: scattered checks, forgotten filters, and data leaks. PostgreSQL’s Row Level Security (RLS) flips the script: pushing verification into the database for stronger safety, but with trade-offs in debugging and performance.

Fabien Martinet

Sep 18, 2025
∙
6 min
read
Application vs. Database: Where Should Permissions Live?
Permissions drift is real: scattered checks, forgotten filters, and data leaks. PostgreSQL’s Row Level Security (RLS) flips the script: pushing verification into the database for stronger safety, but with trade-offs in debugging and performance.

Fabien Martinet

Sep 10, 2025
∙
14 min
read
The Origin Story of Merge Queues
From Bors and Homu to Bulldozer, Kodiak, Mergify, and now GitHub and GitLab, merge queues have shaped how we keep main branches green. This article traces their history, why they emerged, and how they became a standard in modern software development.

Julien Danjou

Sep 10, 2025
∙
14 min
read
The Origin Story of Merge Queues
From Bors and Homu to Bulldozer, Kodiak, Mergify, and now GitHub and GitLab, merge queues have shaped how we keep main branches green. This article traces their history, why they emerged, and how they became a standard in modern software development.

Julien Danjou

Sep 10, 2025
∙
14 min
read
The Origin Story of Merge Queues
From Bors and Homu to Bulldozer, Kodiak, Mergify, and now GitHub and GitLab, merge queues have shaped how we keep main branches green. This article traces their history, why they emerged, and how they became a standard in modern software development.

Julien Danjou

Sep 10, 2025
∙
14 min
read
The Origin Story of Merge Queues
From Bors and Homu to Bulldozer, Kodiak, Mergify, and now GitHub and GitLab, merge queues have shaped how we keep main branches green. This article traces their history, why they emerged, and how they became a standard in modern software development.

Julien Danjou

Sep 8, 2025
∙
4 min
read
What I Learned Building My First Jenkins Plugin
Building a Jenkins plugin sounded simple — until it became a crash course in Java, Jenkins internals, and community code review. Here’s what I learned, why the process surprised me, and how it now powers Mergify CI Insights.

Mehdi Abaakouk

Sep 8, 2025
∙
4 min
read
What I Learned Building My First Jenkins Plugin
Building a Jenkins plugin sounded simple — until it became a crash course in Java, Jenkins internals, and community code review. Here’s what I learned, why the process surprised me, and how it now powers Mergify CI Insights.

Mehdi Abaakouk

Sep 8, 2025
∙
4 min
read
What I Learned Building My First Jenkins Plugin
Building a Jenkins plugin sounded simple — until it became a crash course in Java, Jenkins internals, and community code review. Here’s what I learned, why the process surprised me, and how it now powers Mergify CI Insights.

Mehdi Abaakouk

Sep 8, 2025
∙
4 min
read
What I Learned Building My First Jenkins Plugin
Building a Jenkins plugin sounded simple — until it became a crash course in Java, Jenkins internals, and community code review. Here’s what I learned, why the process surprised me, and how it now powers Mergify CI Insights.

Mehdi Abaakouk

Sep 5, 2025
∙
8 min
read
Pull Request Management: Streamline Your Workflow with Automation
Pull requests are essential, but they don’t scale without automation. Learn PR basics, best practices, and how to automate reviews, tests, and merges with GitHub Actions or Mergify.

Julien Danjou

Sep 5, 2025
∙
8 min
read
Pull Request Management: Streamline Your Workflow with Automation
Pull requests are essential, but they don’t scale without automation. Learn PR basics, best practices, and how to automate reviews, tests, and merges with GitHub Actions or Mergify.

Julien Danjou

Sep 5, 2025
∙
8 min
read
Pull Request Management: Streamline Your Workflow with Automation
Pull requests are essential, but they don’t scale without automation. Learn PR basics, best practices, and how to automate reviews, tests, and merges with GitHub Actions or Mergify.

Julien Danjou

Sep 5, 2025
∙
8 min
read
Pull Request Management: Streamline Your Workflow with Automation
Pull requests are essential, but they don’t scale without automation. Learn PR basics, best practices, and how to automate reviews, tests, and merges with GitHub Actions or Mergify.

Julien Danjou

Sep 5, 2025
∙
7 min
read
Trunk-Based Development vs Gitflow: Which Branching Model Actually Works?
Trunk-based vs Gitflow: which branching model really works for modern CI/CD? We compare both, share trade-offs, and argue why trunk-based (with automation like merge queues) usually wins for teams that care about speed, reliability, and flow.

Julien Danjou

Sep 5, 2025
∙
7 min
read
Trunk-Based Development vs Gitflow: Which Branching Model Actually Works?
Trunk-based vs Gitflow: which branching model really works for modern CI/CD? We compare both, share trade-offs, and argue why trunk-based (with automation like merge queues) usually wins for teams that care about speed, reliability, and flow.

Julien Danjou

Sep 5, 2025
∙
7 min
read
Trunk-Based Development vs Gitflow: Which Branching Model Actually Works?
Trunk-based vs Gitflow: which branching model really works for modern CI/CD? We compare both, share trade-offs, and argue why trunk-based (with automation like merge queues) usually wins for teams that care about speed, reliability, and flow.

Julien Danjou

Sep 5, 2025
∙
7 min
read
Trunk-Based Development vs Gitflow: Which Branching Model Actually Works?
Trunk-based vs Gitflow: which branching model really works for modern CI/CD? We compare both, share trade-offs, and argue why trunk-based (with automation like merge queues) usually wins for teams that care about speed, reliability, and flow.

Julien Danjou

Sep 4, 2025
∙
6 min
read
Feature Branch Workflow: A Practical Guide for Git
A feature branch workflow is one of Git’s most popular strategies. Learn how it works, its pros and cons, and how modern automation (like merge queues) keeps feature branches fast, safe, and frustration-free.

Julien Danjou

Sep 4, 2025
∙
6 min
read
Feature Branch Workflow: A Practical Guide for Git
A feature branch workflow is one of Git’s most popular strategies. Learn how it works, its pros and cons, and how modern automation (like merge queues) keeps feature branches fast, safe, and frustration-free.

Julien Danjou

Sep 4, 2025
∙
6 min
read
Feature Branch Workflow: A Practical Guide for Git
A feature branch workflow is one of Git’s most popular strategies. Learn how it works, its pros and cons, and how modern automation (like merge queues) keeps feature branches fast, safe, and frustration-free.

Julien Danjou

Sep 4, 2025
∙
6 min
read
Feature Branch Workflow: A Practical Guide for Git
A feature branch workflow is one of Git’s most popular strategies. Learn how it works, its pros and cons, and how modern automation (like merge queues) keeps feature branches fast, safe, and frustration-free.

Julien Danjou
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Curious where your CI is slowing you down?
Try CI Insights — observability for CI teams.
Curious where your CI is slowing you down?
Try CI Insights — observability for CI teams.