Previously I worked in a place where it wasn't the case that deploys of new code often brought down the service (a webapp). If the service went down it was usua

Previously I worked in a place where it wasn't the case that deploys of new code often brought down the service (a webapp). If the service went down it was usually because some random DB or Kafka topic or something else I don't understand at all took a shit in the middle of the night. So we just kept deployments on weekdays before about 4pm and if the site went down outside of that, well, it wasn't because of a deploy. And if it was, we were there to fix.