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Docker for Rails Developers

Deploying Our App on a Swarm

Explore deploying a Rails application on a Docker Swarm cluster with a hands-on approach. Learn how to configure and deploy multi-service stacks, use Docker commands to monitor and scale services, and verify the app running in a production-like environment. This lesson prepares you to manage app deployment and scaling effectively using Docker Swarm.

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Deploy app onto single-node

With our newly created docker-stack.yml, we have a description of our app that Swarm can use. We are ready to deploy our app onto our (single-node) swarm. First, retarget Swarm by:

$ eval $(docker-machine env local-vm-1)

Command to deploy app

Now we can deploy our app with the command:

$ docker stack deploy -c docker-stack.yml myapp
Creating
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