docker – Türker Yıldırım

A pipeline described in one file, after four years of five

Deep diveJune 2, 202610 min read

Five workflow files, two composite actions, and nobody able to say what runs when. A change that needed editing three files, one of them wrong.

Compose profiles, and the service that should have had one

NoteMay 19, 20261 min read

A profile applied to the heavy development services, and one that was missed because it is small. Memory was the criterion for adding a profile and the cost…

The second host, and the failover we finally built

Deep diveMarch 27, 202614 min read

Seven years on one host, and a business requirement that finally arrived. A recovery time that assumes the host comes back.

An image rebuilt weekly, and the week it was not

NoteJanuary 31, 20262 min read

A scheduled base image rebuild, disabled during an incident in November, restored in February. A guard and the thing it guards being disabled together is the ordinary shape…

A container that logged to stdout and to a file

NoteJanuary 27, 20262 min read

An application writing to both, which doubles the disk and halves the usefulness of each. A container writing to a file is a container whose logs disappear when…

The backup that had to leave the building

Deep diveNovember 11, 20259 min read

Every backup in one provider’s object storage, and a disaster recovery plan that assumes the disaster is local.

The incident that was a certificate, again

Deep diveOctober 10, 202510 min read

The third certificate incident in six years, each with a different cause. An expired certificate on a service nobody remembered was serving TLS.

A test suite that runs on every commit, in ninety seconds

Deep diveSeptember 25, 20259 min read

Four minutes forty is fine and ninety seconds changes behaviour. The threshold below which running the suite stops being a decision.

Docker Compose in production, and why it is still here

Deep diveSeptember 19, 202510 min read

Six years of Compose on a VPS, and an annual conversation about orchestration. Nothing is wrong, which is why the conversation keeps happening.

Managing WordPress entirely through Composer

Deep diveAugust 21, 202515 min read

turkerdev/wp-composer, and an install where nothing is committed except a lock file. Core, themes and plugins as dependencies.