Fleio Requirements

Hardware Requirements

Minimum hardware requirements to run Fleio are: one virtual machine with 4 GB of RAM, 2 vCPUs, 20 GB of storage (SSD storage is recommended). We have tested this configuration extensively on an OpenStack deployment with 5 regions and 30 compute nodes and over 600 instances. For a small evaluation installation, you should be able to run Fleio on 2GB of RAM.

Supported Operating Systems

The Fleio backend should run on any modern Linux distribution, but we officially provide installation packages and support for the following:

  • Ubuntu 16.04
  • Ubuntu 18.04
  • CentOS 7

The operating system on the client machine (where the browser runs) does not matter as long as it has one of the supported browsers.

Other Required Packages

Fleio requires the following system packages, but they are installed automatically when installing the DEB or RPM package, no need to install them manually:

Supported Browsers

Fleio supports the following browsers:

  • Chrome latest and previous major version
  • Safari latest and previous major version
  • Firefox latest and previous major version
  • Android 4.2+
  • iOS 8+
  • Internet Explorer 11+

Required Network Ports

If a firewall is deployed for the Fleio server, the following network ports need to be accessible:

  • 80 TCP for non HTTP SSL connections
  • 443 TCP for HTTP SSL connections

Connections from the Fleio servers to the outside world are not blocked in most cases, however if they are, Fleio requires external access to many resources, including OpenStack services and cPanel/WHM. As a starting point the following ports are used by OpenStack services and cPanel/WHM API:

OpenStack services (Keystone, Nova, Neutron, Cinder, Glance, Designate and RabbitMQ):

  • RabbitMQ: 5672 (no SSL) and 5673 (SSL)
  • Keystone: 5000
  • Glance: 9292 and 9191
  • Neutron: 9696
  • Nova: 8773, 8774 and 8775
  • Cinder: 8776
  • Designate: 9001

For cPanel/WHM the port is: 2087

These external ports only need to be configured on the firewall if it actually blocks connections from the server to the external network. Otherwise Fleio only needs the usual TCP port 443 for HTTPS connections and TCP port 80 for HTTP connections to be accessible.

OpenStack Supported Versions

Fleio was tested and we provide support for Rocky, Queens and Pike OpenStack releases. Fleio should also work with Ocata, Newton and Mitaka, but we are no longer testing these releases.

OpenStack Supported Distributions

Fleio should work on any OpenStack distribution.

We have tested and we are able to provide support for Fleio configuration with the following OpenStack distributions:

  • Ubuntu with OpenStack-Ansible
  • Redhat/Centos with RDO
  • Ubuntu OpenStack
  • Mirantis OpenStack

OpenStack Configuration Requirements

Fleio connects to OpenStack through the public OpenStack API and needs access to the management network in order to connect to the messaging queue daemon (RabbitMQ). Fleio gets the up to date status of cloud resources as well as the cloud resource consumption information from the internal OpenStack messages posted on the message queue.

You can avoid giving access to Fleio to the private OpenStack network and to the internal RabbitMQ message queue by using the Fleio collector setup. Read more about the Fleio collector setup.

Fleio uses the common OpenStack services: Nova, Keystone, Neutron, Glance and Cinder (optional).

Ceilometer and Gnocchi are optional. If you need instance metric graphics or traffic billing you have to install Ceilometer and Gnocchi.

RabbitMQ access is required for notification sent by Nova, Glance and other OpenStack services.

For more information and other configuration requirements, see Configuring section.