We follow the twelve factor build/release/run model (see Concepts in our docs), so most deploy issues are caught during the build stage which occurs in the fore

We follow the twelve factor build/release/run model (see Concepts in our docs), so most deploy issues are caught during the build stage which occurs in the foreground of a git push. The run stage is a simple Chef run which pulls from a databag. We don't currently support zero downtime deploys, though we should soon by using a combination of Nginx no-downtime reload and stale container "garbage collection".