Zero-downtime deploys with drush deploy

The deploy sequence we use across 40 council sites, including maintenance-mode-free updates.

Canadian Digital Service · 25 Aug 2026

The sequence

set -euo pipefail
drush state:set system.maintenance_mode 0
drush deploy -y
drush cache:rebuild

drush deploy runs updatedb, config:import and your hook_deploy_NAME() functions in the right order. Use deploy hooks for content changes instead of update hooks.

#deployment
#drush
#ci/cd

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