Build: DDEV CI Acceleration Playbook with WarpBuild for Drupal Pipelines

Use WarpBuild runners for the compute-heavy parts of your DDEV Drupal pipeline, keep cache keys deterministic, and gate rollout by p95 runtime and failure-rate SLOs. This gives you faster CI without turning your pipeline into a probabilistic black box. I verified this playbook against DDEV v1.25.1 (released February 23, 2026) and current WarpBuild runner/cache docs. The Problem Drupal CI pipelines that boot DDEV, run Composer, and execute tests typically lose time in three places: Bottleneck Typical symptom Why it hurts Cold VM startup Slow first job on each PR Adds fixed latency to every run Dependency re-download Composer cache misses Repeats network + unzip work Unsafe rollout Team flips all jobs at once Outages hide whether speed gains are real Without a reproducible benchmark method, "CI feels faster" is not a decision signal. The Solution I use one workflow template and one benchmark script as the source of truth: Workflow template: examples/devops/ddev-warpbuild-drupal-ci.yml Be