Create tenant in OpenStack and launch instances

openstack
In this tutorial we will show you, how to create project tenant in OpenStack Juno and launch instances accessible from external public network.

Note: this tutorial is a continuation of OpenStack Installation on CentOS7 / RHEL7 and we assume that you already have working installation of OpenStack.

Environment used:
cloud version: OpenStack Juno on CentOS7 (2 nodes: controller, compute)
public network (Floating IP network): 192.168.2.0/24
private network (inside Project Tenant): 192.168.20.0/24
public controller IP: 192.168.2.4 (eth0)
public compute IP: 192.168.2.5 (eth0)
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Install OpenStack Juno on CentOS 7 / RHEL 7

openstack
OpenStack is a free and open source cloud computing platform developed as a joint project of Rackspace Hosting and NASA. Users primarily deploy it as an Infrastructure as a Service (IaaS) solution. OpenStack cloud consists of many well know technologies like: Linux KVM, LVM, iSCSI, MariaDB (MySQL), RabbitMQ or Python Django.

OpenStack architecture overview:

  1. Horizon: web browser user interface (dashboard) based on Python Django for creating and managing instances (virtual machines)
  2. Keystone: authentication and authorization framework
  3. Neutron: network connectivity as a service
  4. Cinder: persistent block storage for instances based on LVM
  5. Nova: instances management system based on Linux KVM
  6. Glance: registry for instance images
  7. Swift: file storage for cloud
  8. Ceilometer: metering engine for collecting billable data and analysis.
  9. Heat: orchestration service for template-based instance deployment

In this tutorial we will install OpenStack Juno release from RDO repository on two nodes (controller node & compute node) based on CentOS 7 / RHEL 7.

Environment used:
public network (Floating IP network): 192.168.2.0/24
internal network: no IP space, physical connection only (eth1)
public controller IP: 192.168.2.4 (eth0)
public compute IP: 192.168.2.5 (eth0)
openstack_diagram
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