Openstack
- Openstack is a free and open source platform to deliver private cloud computing
- Openstack is treated as IaaS
Openstack installation
- Install a CentOS system from a Minimal ISO
- 6GB for RAM and 20GB disk space
- Network in Bridged mode
- Promiscuous mode to allow all
- Disable kdump and security policies
- Select manual IPv4 192.168.0.60 and Gateway 192.168.0.1 and DNS 8.8.8.8
# Check Internet connectivity
ping 192.168.0.60
ping 192.168.0.1
ping www.google.com
# Check the CentOS veersion
cat /etc/redhat-release
# Add locale settings
vi /etc/environment
#LANG=en_US.utf-8
#LC_ALL=en_US.utf-8
# Disable firewall
systemctl status firewalld
systemctl stop firewalld
systemctl disable firewalld
Cloud computing
- Three delivery models: SaaS, PaaS, IaaS
- Characteristics:
- On-demand self-service
- Broad network access
- Resource pooling
- Rapid elasticity
- Measured service
- Enabling technologies
- Virtualization: Compute, Networking, Storage
- Automation & Orchestration
Traditional Computing Stack
- IaaS: Network, Storage, Compute, Hypervisor
- PaaS: + Operating System, Middleware, Runtime
- SaaS: + Data, Application
Openstack services
- Keystone: Identity service
- Glance: Disk Image management
- Neutron: Virtual networks
- Nova: Computing
- Cinder: Persistent block storage
- Swift: Object storage
- Horizon: Dashboard
Openstack Access
- Horizon dashboard
- Command Line Interface
- API