To Cloud or Not to Cloud?
summary
Kamal is presented as a lightweight alternative to Kubernetes that enables cloud-like deployments on VPS or bare-metal using only SSH and Docker. The workflow builds images, pushes to a registry, servers pull them, uses Crowflare tunnels and secrets from GitHub/Bitwarden, and achieves zero-downtime rolling deploys for the app while accessories (e.g., a DB migration) caused about 1.5 minutes of downtime in practice. It’s aimed at small–medium fleets (multiple Node apps and a large monolith across OVH/Esner) and avoids agents or master nodes, not intended for thousands of servers.
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