Zero-downtime deploy means health checks, connection draining, and backward-compatible migrations — not just two servers.
New instances pass readiness; drain old after.
Two envs; switch traffic after smoke; fast rollback.
Zero-downtime deployment: blue-green and rolling
Sign in to get access
Sign up to read the full article.
enter email
By clicking «send code», you accept the terms of use and consent to personal data processing.