Puppet in Docker : Building a Puppet environment in docker.

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I want to run puppet on a set of containers (ie), containers as a service. Can somebody please help me in setting up the puppet environment?
Aug 19 in Puppet by Karan
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1 answer to this question.

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You can run your Puppet infrastructure on top of a containers-as-a-service platform. 

This can be accomplished with the puppet/puppetserver image, which will deploy a fully functioning Puppet master:

$ docker run --net puppet --name puppet --hostname puppet puppet/puppetserver
  • The Puppet master is created in a container called puppet on a Docker network named "puppet." 

  • The only piece you really need is docker run puppet/puppetserver, but the other bits allow you to attach your master to a specific network, name the container for easy reuse, and set the hostname so container-based agent nodes can find it.

  • All the open-source components of a stand-alone Puppet infrastructure are available in this same fashion, including Puppet Server, PuppetDB and various dashboards. You can put them all back together as a stack with Docker Compose.

  • You can manually install docker-compose or install it using the docker::compose class.

  • To test the power of Docker Compose, create a docker-compose.yml file.

  • The file describes several container images, including puppetserver, puppetdb-postgres, puppetboard and puppetexplorer. 

  • These last two are browser-based dashboard components that will become accessible when Docker Compose completes.

  • Everything will be pulled, built and booted from a single command executed from the directory where you’ve saved your docker-compose.yml file:

$ docker-compose up

  • This would probably take some time to pull down and install everything into a series of containers, but when it’s done you’ll have a whole environment, which gives you a way to get a very useful test environment in just a couple of minutes. 

  • Instead of setting up number of VM's, you could see how this works at a minute level.

  • You can now experiment with the  combination of Puppet and Docker that gives you new and powerful ways to expand your development environment. 

  • Instead of deploying one Puppet node at a time, you can use simple Docker commands to do the work for you.

answered Aug 19 by Sirajul
• 25,700 points

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