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Mastering CoreOS by Sreenivas Makam

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CoreOS on OpenStack

CoreOS can be run as a VM on OpenStack. CoreOS OpenStack images are available for alpha, beta, and stable versions.

Here, I have described the procedure to install CoreOS on OpenStack running in the Devstack environment. The procedure is based on the CoreOS OpenStack documentation (https://coreos.com/os/docs/latest/booting-on-openstack.html).

The following is a summary of the steps:

  1. Get OpenStack Kilo running in Devstack. In my case, I installed Devstack in the Ubuntu 14.04 VM.
  2. Set up the keys for authentication and a security group for SSH access.
  3. Set up external network access and DNS for the VM. This is necessary as the CoreOS nodes need to discover each other using the token service.
  4. Download the appropriate CoreOS image and ...

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