Adding a host is the first step to setting up an OpenStack cloud with the Platform9 Clarity UI.
The OpenStack cloud runs on the hosts that you set up by adding one or more hosts.
You must first identify the hosts for the OpenStack cloud, and then identify the OpenStack service or OpenStack services that each one of them would be used for.
Before you add the host, ensure the following.
- The host is configured with sufficient local storage or shared storage for virtual machines to run on the host.
- The host has at least one network interface (configured with either flat or VLAN networking) and outbound https access.
- The compute prerequisites and/or networking prerequisites are met.
You must be an administrator to perform this operation.
To add a host, follow the steps given below.
- Log in to Clarity.
- Click Infrastructure in the left panel.
- Click the Hosts tab.
- Click Add Host seen on the top right corner.
- Click Download Installer to download the host agent installer for the operating system version of the host that you are adding to Clarity.
- Copy the installer to the host operating system or to a shared folder.
- Install the host agent by running the command
sudo bash <path to installer>. Ensure that the host agent installation has succeeded – a message indicating installation success is displayed on your host command line or console.
- Click the public GPG key link on the Add New Hosts page to download the public GPG key.
- Verify the packages downloaded with the installer.
The host is added and is visible on the Dashboard.
Once the host has been added, you must authorize the host. After authorizing the host, you can configure it to function as a hypervisor, an image library, and/or for block storage. Additionally, you must configure the host for networking.