ci-cd – Page 7 – Türker Yıldırım

A deploy that rolls back on a health check

NoteNovember 6, 20232 min read

A deploy that succeeds because the files copied is a deploy that has verified nothing. Twenty seconds of retrying before giving up, and a rollback that is the…

Mutation testing for one directory, and what it found

Deep diveOctober 24, 202310 min read

94% line coverage on the pricing code, and a bug that shipped anyway. A test that called the method and asserted it did not throw.

Composer 2.6, and audit as a pipeline step

NoteSeptember 21, 20232 min read

The audit command has been there since 2.4 and had never been run by anything except a person remembering to run it. Two of the four were noise…

Import blocks, and the resources we had been pretending to manage

Deep diveSeptember 21, 202310 min read

Terraform 1.5 in June, and an import that is part of the plan rather than a side effect. Fourteen resources created by hand in 2019.

A remote state lock held by a run that was cancelled

NoteAugust 5, 20232 min read

A pipeline cancelled during an apply leaves the lock held, and every subsequent run fails with a lock ID and a timestamp. Step two is the one people…

check blocks, and the assertion that runs after apply

NoteJuly 26, 20232 min read

A runbook step that said “confirm the health endpoint returns 200 after applying” is an assertion, and assertions belong in the tool. A failing check is a warning…

Import blocks, in a plan somebody can review

NoteJuly 19, 20232 min read

Adopting an existing resource used to be a command run against state, invisible to review and impossible to repeat. Seeing the drift in the plan is the improvement…

The state file two people wrote to at once

Deep diveJuly 14, 202310 min read

Two pipelines, one state file, and a plan that proposed deleting a database. A lock held by a run cancelled forty minutes earlier.

Two years of deprecations, and the upgrade we could no longer defer

Deep diveJune 6, 202314 min read

PHP 8.0 reaches end of life in November and the application is on it. 4,100 deprecation notices, and a log filter that had been hiding them.

A suite that runs in four minutes because it stopped touching the database

Deep diveMay 28, 202310 min read

1,400 tests, fourteen minutes, and 1,100 of them opening a transaction against MySQL for no reason anybody could name.