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Harvester iPXE Boot Using Vagrant Libvirt

Introduction

Utilizing Vagrant, KVM, and Ansible to create a ready-to-play virtual Harvester environment for evaluation and testing purposes. Two Vagrant VMs will be created by default, PXE server and a single-node Harvester respectively.

Prerequisites

  • Ansible >= 2.9.0. This environment was tested with Ansible 2.9.5.
  • Vagrant >= 2.0.3.
  • vagrant-libvirt plugin >= 0.0.43.
  • KVM (i.e. qemu-kvm), preferably the latest and greatest. This environment was tested with qemu-kvm 2.11.
  • Host with at least 16 CPU, 64GB RAM, and 500GB free disk space. (note: running this is very resource intensive depending on the number of nodes)

Quick Start

  1. Edit settings.yml to make sure the configuration satisfies your needs. The options are self-documented. Set harvester_cluster_nodes to 1 if you just want to try out Harvester quickly and don't need a full cluster. To deploy a Rancher node additionally, set rancher_config.enabled to true.
  2. Run setup_harvester.sh to deploy the Harvester cluster and additional configured nodes. This may take a while (i.e. 30 minutes depending on configuration).
  3. If successful, run vagrant status to see the status of the Vagrant boxes.
  4. Point your browser to https://<harvester_vip>:30443 to access the Harvester UI. Just ignore the scary SSL warnings for now as it is using self-signed certificates for demo purposes. NOTE: by default harvester_vip is 192.168.0.131. However, it is configurable in settings.yml.
  5. If you have deployed a Rancher node, you can access the UI at https://192.168.0.141. The bootstrap password to finish the installation can be found in settings.yml.
  6. Note, when starting up the VM's again, you need to specify the nodes explicitly, e.g. vagrant up rancher pxe_server harvester-node-0 [harvester-node-X]

Acknowledgements