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If a primary role container is unhealthy, we might take a while to timeout the health check poller. In the meantime if we have started the other roles, they'll be running tow containers. This could be a problem, especially if they read run jobs as that doubles the worker capacity which could cause exessive load. We'll wait for the first primary role container to boot successfully before starting the other containers from other roles.
Kamal: Deploy web apps anywhere
From bare metal to cloud VMs, deploy web apps anywhere with zero downtime. Kamal has the dynamic reverse-proxy Traefik hold requests while a new app container is started and the old one is stopped. Works seamlessly across multiple hosts, using SSHKit to execute commands. Originally built for Rails apps, Kamal will work with any type of web app that can be containerized with Docker.
➡️ See kamal-deploy.org for documentation on installation, configuration, and commands.
Contributing to the documentation
Please help us improve Kamal's documentation on the the basecamp/kamal-site repository.
License
Kamal is released under the MIT License.