INSTALLATION OF OPENSTACK

OPENSTACK

                OpenStack is a set of software tools for building and managing cloud computing platforms for public and private clouds. Backed by some of the biggest companies in software development and hosting, as well as thousands of individual community members, many think that OpenStack is the future of cloud computing. OpenStack is managed by the OpenStack Foundation, a non-profit that oversees both development and community-building around the project.

 COMPONENTS AND SERVICES

Service	Project name	Description
Dashboard	Horizon	Provides a web-based self-service portal to interact with underlying OpenStack services, such as launching an instance, assigning IP addresses and configuring access controls.
Compute	Nova	Manages the lifecycle of compute instances in an OpenStack environment. Responsibilities include spawning, scheduling and decommissioning of virtual machines on demand.
Networking	Neutron	Enables Network-Connectivity-as-a-Service for other OpenStack services, such as OpenStack Compute. Provides an API for users to define networks and the attachments into them. Has a pluggable architecture that supports many popular networking vendors and technologies.
Storage
Object Storage	Swift	Stores and retrieves arbitrary unstructured data objects via a RESTful, HTTP based API. It is highly fault tolerant with its data replication and scale out architecture. Its implementation is not like a file server with mountable directories.
Block Storage	Cinder	Provides persistent block storage to running instances. Its pluggable driver architecture facilitates the creation and management of block storage devices.
Shared services
Identity service	Keystone	Provides an authentication and authorization service for other OpenStack services. Provides a catalog of endpoints for all OpenStack services.
Image Service	Glance	Stores and retrieves virtual machine disk images. OpenStack Compute makes use of this during instance provisioning.
Telemetry	Ceilometer	Monitors and meters the OpenStack cloud for billing, benchmarking, scalability, and statistical purposes.
Higher-level services
Orchestration	Heat	Orchestrates multiple composite cloud applications by using either the native HOT template format or the AWS CloudFormation template format, through both an OpenStack-native REST API and a CloudFormation-compatible Query API.
Database Service	Trove	Provides scalable and reliable Cloud Database-as-a-Service functionality for both relational and non-relational database engines.

INSTALLATION OF OPENSTACK

1. add new user named stack – This stack user is the adminstrator of the openstack services.

            To add new user – run the command as root user.

                        adduser stack

2. run the command

                         apt-get install sudo -y

3. Be careful in running the command – please be careful with the syntax. If any error in thsi following command, the system will crash beacause of permission errors. 

                                               

                        echo “stack ALL=(ALL) NOPASSWD:ALL” >> /etc/sudoers

4. Logout the system and login as stack user

5. Run the command (this installs git repo package)

Please ensure that you are as logged in as non-root user (stack user), and not in /root directory.

                        sudo apt-get install git

6. Run the command (This clones updatesd version of dev-stack (which is binary auto-installer package of Openstack)

                        git clone https://git.openstack.org/openstack-dev/devstack

                        ls (this shows a folder named devstack)

                        cd devstack (enter into the folder)

7. create a file called local.conf. To do this run the command,

                        nano local.conf

8. In the file, make the following entry (Contact Your Network Adminstrator for doubts in these values)

            [[local|localrc]]

FLOATING_RANGE=192.168.1.224/27

FIXED_RANGE=10.11.11.0/24

FIXED_NETWORK_SIZE=256

FLAT_INTERFACE=eth0

ADMIN_PASSWORD=root

DATABASE_PASSWORD=root

RABBIT_PASSWORD=root

SERVICE_PASSWORD=root

SERVICE_TOCKEN=root

9. Save this file

10. Run the command (This installs Opentack)

            ./stack.sh

11. If any error occurs, then run the command for uninistallation

            ./unstack.sh

                        1. update the packages

            apt-get update

                                    2. Then reinstall the package

            ./stack.sh

12. Open the browser, http://IP address of your machine, you will get the openstack portal.

13. If you  restart the machine and want to start open stack

            open terminal,

                        su stack

                        cd devstack

                        run ./rejoin.sh

14. Again you can access openstack services in the browser, http://IP address of your machine,