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Q. What you mean by tenant and role regarding Openstack? In OpenStack,  the authorization level of the user is called role and the group of users is called tena…

Database monitoring can be quite complex, and depending on your deployment or experience, monitoring may already be set up. MySQL Server is the MySQL is the wor…

When monitoring the OPENSTACK STORAGE SERVICE, Swift, we are looking at gathering key metrics from within the storage cluster in order to make decisions on its …

The health of the underlying infrastructure operating our on-premise cloud solution is important, but of equal importance is to understand the metrics given by …

Munin the monitoring tool surveys all your computers and remembers what it saw. Munin Monitoring System is one of the popular computer system, network and infra…

Introduction There are a number of ways to monitor computer systems and their services, but the principles remain same. Adequate monitoring and alerting of ser…

Submitting Bug reports OpenStack is a hugely successful open source, public and private cloud framework. It has gained this momentum by the individuals and org…

Troubleshooting OpenStack Authentication The OpenStack Authentication service (Keystone) is a complex service, as it has to deal with underpinning the authenti…

Troubleshooting OpenStack Object Storage services OPENSTACK STORAGE SERVICE (SWIFT) is built for HIGHLY AVAILABLE STORAGES, but there may be times when somethi…

OPENSTACK COMPUTE SERVICES are complex, and being able to diagnose faults is an essential part of ensuring the smooth running of the services. Fortunately, Open…

OpenStack provides tools to check on its services. In this section, we’ll show you how to check the operational status of these services. We will also use commo…

Introduction OpenStack is a complex suite of software that can make tracking down issues and faults quite daunting to beginners and experienced system administ…

The reference architecture includes bonded network interfaces, which use multiple physical network interfaces for better redundancy and throughput. Running mult…

This recipe represents two nodes running both GLANCE and Keystone, controlled by Pacemaker with Corosync in active/passive mode, which allows for a failure of a…

OpenStack has been designed for highly scalable environments where it is possible to avoid single point of failures (SPOFs), but you must build this into your o…

Having a single node OpenStack environment is great, and you can do many things with it. However, now that we have an OpenStack producing factory with CHEF and …

Once you have created and enabled the policy, nodes will begin to install. This may or may not take a long time depending on the size of your system. Razor prov…

Before RAZOR does anything more than collecting information about a node, it will need to have a number of things defined. Specifically, we will define the brok…

Now that our environment is ready, we need to boot a node that will become our first OpenStack node. That is, we will later assign it the “all in one” role and …

At this stage, you will have a functioning OPSCODE CHEF SERVER, as well as a PUPPETLABS RAZOR ENVIRONMENT, so we can now begin to configure our OpenStack enviro…

There are a number of provisioning systems, such as Cobbler, Kick-start, and Ubuntu’s own MAAS, to provision an operating system such as Ubuntu to bare-metal. I…

Now that we have installed both CHEF SERVER and its Knife utility, we need to download the Chef cookbooks to support the remainder of our installation. Getting…

Introduction OpenStack is a large and fast moving project. It is a cloud operating system that provides support for provisioning large networks of virtual mach…

As a cloud administrative user, Openstack Dashboard gives us the ability to administer users, projects, images, and flavors through the Web interface. This allo…

Openstack Dashboard is a lot more than just an interface to our instances. It allows an administrator to configure environments, Users, and tenants. Tenants are…

Openstack Dashboard has a very handy feature that allows a user to connect to our running instances through a VNC (Virtual Network Console) session within our W…

Using OpenStack Dashboard to launch instances Instances are virtual machines that run inside the cloud. Launching instances are easily done, using the Openstac…

Using OpenStack Dashboard for key management SSH keypairs allow users to connect to our Linux instances without requiring to input passwords and is the default…

Introduction Managing our OpenStack environment through a command-line interface allows us complete control of our cloud environment, but having a GUI that ope…

You create an external network to enable private networks in the cloud to communicate with the wider network. In a cloud, a tenant can have one or more private …

Creating a Neutron network Now that we have our OpenStack network configured for Neutron, we can now use this to create networks within our OpenStack environme…

The compute node handles connectivity and security groups for instances. With the network node configured, there are some services that need to run our Compute …

With our MySQL Galera cluster configured, each of the nodes is able to take traffic, and the writes are seamlessly replicated to other nodes in the cluster. We …

Creating a sandbox server for running the Openstack Network  Neutron services is easy using VirtualBox and Vagrant. VirtualBox gives us the ability to spin up v…

When an instance boots, it is assigned a private IP address. This private IP address is only accessible within our virtual environment’s network. To access this…

Manually associating floating IPs to instances OpenStack Networking allocates floating IP addresses to all projects (tenants) from the same IP ranges. Where fl…

OpenStack Networking provides a rich tenant-facing API for defining network connectivity and addressing in the cloud. The OpenStack Networking project gives ope…

Your OpenStack environment must have an efficient, scalable, and manageable network infrastructure that addresses your immediate business needs and future growt…

Setting up your cloud to work in a VLAN tagged environment.  VLAN Manager networking is the default networking mode in OpenStack. It provides a private network …

Introduction The OpenStack Networking service provides an API that allows users to set up and define network connectivity and addressing in the cloud. OpenStac…

At some point, you will no longer need the volumes you have created. To remove the volumes from the system permanently, so that they are no longer available, we…

Since Cinder Volumes are persistent storage and the best way of thinking of them is as a USB drive, this means that you can only attach them to a single compute…

This procedure details the steps involved in attaching a Cinder volume to an existing compute instance using the cinder and nova command line interfaces. Now th…

On Cinder, a drive is called a volume. The first thing you need to do is to create a new volume in the region you want. They are block storage devices that you …

We now need to tell our OpenStack Compute service about our new Cinder volume service. Getting ready As we are performing this setup in a multi-node environme…

Introduction Data written to currently running instances on disks is not persistent—meaning that when you terminate such instances, any disk writes will be los…

OpenStack Object Storage can report on usage metrics by using the swift-recon middleware added to our object -server configuration. By using a tool, also named …

Openstack Object Storage won’t be of much use if it can’t access the hard drives where our data is stored; so being able to detect and replace failed hard drive…

Converse to adding capacity to our OpenStack Object Storage cluster, there may be times where we need to scale back, or remove a failed node for service. You ma…

 Because Swift is a distributed system that is controlled by software, does not rely on RAID, and writes multiple copies of each object (file), operating a Swif…

Understanding the capabilities of your OpenStack Object Storage environment is crucial to determining limits for capacity planning and areas for performance tun…

Cluster health management is a powerful tool that should be in every cluster management solution. We are able to measure the health of our cluster by using the …

The OpenStack Object Storage is a multi-tenant object storage system. It is highly scalable and can manage large amounts of unstructured data. Services in our O…

Introduction Day-to-day administration of our OpenStack Object Storage cluster involves ensuring the files within the cluster are replicated to the right numbe…

Access Control Lists (ACLs) allow us to have greater control over individual objects and containers without requiring full read/write access to a particular con…

The Swift Client Tool allows us to directly delete containers and objects within our OpenStack Object Storage environment. Getting started Log in to a compute…

Now that we have configured OpenStack Object Storage, we can also retrieve the stored objects using our swift client. Getting ready Log in to a computer or se…

The Swift Client Tool allows you to easily list containers and objects within your OpenStack Object Storage account. Getting started Log in to a computer or s…

When using cloud storage, such as OpenStack Swift, at some point you might face a situation when you have to upload relatively large files (i.e. a couple of gig…

An object is the basic storage entity that represents a file you store in the OpenStack Object Storage system. When you upload data to OpenStack Object Storage,…

A container can be thought of as a root folder under our OpenStack Object Storage. In the OpenStack dashboard, you can only manage containers and objects. In Op…

In order to operate our OpenStack Object Storage environment, we need to install an appropriate tool on our client. Swift ships with the swift tool, is one such…

OpenStack Object Storage (OOS) is a highly available, distributed, eventually consistent object/blob store. OpenStack Object Storage (swift) is a service that p…

The OpenStack Object Store is a facility that lets applications store and retrieve binary objects using the RESTful methods of the Swift API — this scales bette…

You can configure the dashboard for a simple HTTP deployment. You can configure the dashboard for a secured HTTPS deployment. While the standard installation us…

The OpenStack Identity Service performs the following functions: 1. Tracking users and their permissions. 2. Providing a catalog of available services with thei…

Now that we have configured our OpenStack Object Storage installation, it’s time to start our services, so that they’re run on our swift virtual machine, and ar…

The rings determine where data should reside in the cluster. There is a separate ring for account databases, container databases, and individual object storage …

Object Server contains the actual objects seen in our OpenStack Object Storage environment and configuration of this is similar to configuring the Account Serve…

Container Servers contain Object Servers seen in our OpenStack Object Storage environment. The configuration of this is similar to configuring Account Server. …

The main objective of OpenStack is to produce ubiquitous opensource cloud computing platform which would meet the needs of public as well as private cloud provi…

Container Servers contain Object Servers seen in our OpenStack storage environment. The configuration of this is similar to configuring Account Server. Account …

Proxy server is a component that accepts OpenStack Object storage API and raw HTTP files to accept upload files, modify data and to create containers. Clients c…

Configuring OpenStack Object Storage service: Configuring our OpenStack Storage environment ,  is abrupt and smooth, as it just involves adding a uniquely gene…

CONFIGURING  REPLICATION As recommended by a highly redundant and adaptable object storage system, replication is  of fundamental concern.The reason behind cre…

Configuring storage in Openstack: An OpenStack object storage is a multi-tenant object storage system. As OpenStack Object Storage is designed to be highly ext…

The OpenStack object storage is a multi-tenant object storage system installed for development and testing purposes. It is highly scalable and can manage large …

Introduction OpenStack Object Storage, also known as Swift, is the service that allows massively scalable and highly redundant storage on commodity hardware. T…

Instances are nothing but running virtual machines within the Openstack cloud. Cloud environments are designed to be dynamic and this implies that Cloud instanc…

Instances are virtual machines that within the cloud. Now that we have a running OpenStack Compute environment and a machine image to use, it’s now time to spin…

When you launch a virtual machine, you can inject a keypair. Keypairs refers to SSH keypairs and consist of two elements—a public key and a private key. The mos…

Security group is one of the greatest feature of OpenStack. A common new-user issue with OpenStack is failing to set an appropriate security group when launchin…

OpenStack controls large pools of compute. It is used to host and manage cloud computing systems. OpenStack compute is also the major part of Infrastructure-as-…

Now that we have OpenStack Compute installed, we need to assure that, what we have configured is what we expect. OpenStack Compute provides tools to check vario…

Management of OpenStack Compute from the command line is achieved by using the Nova Client. The Nova Client tool uses the OpenStack Compute API and the OS-API. …

When troubleshooting issues with the Compute service you may have a need to stop or start one or all of the Nova services. So, now that we have configured our O…

OpenStack Identity (keystone) is the Identity service in OpenStack that is used by many services. With OpenStack Identity Service (Keystone) been installed and …

Installing and configuring OVS for Neutron To create a Software Defined Network layer in OpenStack, we first need to install the software on our Network node. …

Configure Compute Node OpenStack Compute is used to host and manage cloud computing systems. OpenStack Compute is a major part of an Infrastructure-as-a-Servic…

When troubleshooting issues with the Compute service you may have a need to stop or start one or all of the Nova services. So, now that we have configured our O…

Configure Database Services Each of the core OpenStack services (Compute, Identity, Networking, Block Storage) store state and configuration information in dat…

Install OpenStack Compute Packages Now that we have a machine for running OpenStack Compute, we can install the appropriate packages which will allow us to spa…

OpenStack Keystone Identity Service Keystone is an OpenStack project that provides Identity, Token, Catalog and Policy services for use specifically by project…

Create Sandbox Environment  Creating a sandbox environment by using VirtualBox and Vagrant allows us to discover and experiment with the OpenStack Compute serv…

Create a Sandbox Compute Server Creating a sandbox server for running the OpenStack Compute services is very easy using VirtualBox and Vagrant. It allows us to…

Installing OpenStack Identity service The OpenStack identity service performs the following functions: 1. Tracking users and their permissions. 2. Providing a…

OpenStack Installation – Compute Controller Services Compute is a collection of services that enables you to launch virtual machine instances. Generally, most …

Configuring Ubuntu Cloud archive ‘Ubuntu 12.04 LTS’ the phrase used throughout this particular article, provides two repositories for installing OpenStack. The…

Image sharing among Tenants In OpenStack , images are often characterized as ‘virtual machine templates’ . When the image you shared is private , then it can b…

Creating OpenStack tenant In OpenStack we have several projects where ‘tenant’ is one of them, which is a must for the users and hence is assigned to them. In …

Register the Remotely Stored Image Images are predominantly standard installation media such as ISO images. Several pre-made images exist and can easily be imp…

Configuring OpenStack roles A role is a nothing but a personality that a user assumes while performing a specific set of operations. A role includes a set of r…

Manage Images As an administrative user, you can create and manage images for the projects to which you belong. You can also create and manage images for users…

Adding users The Identity service provides authentication services for each OpenStack service. The authentication service uses a combination of DOMAINS, PROJEC…

Configure the OpenStack Image Service This section allows readers to gain knowledge on how to configure the OpenStack image service (code-names as glance). To …

Defining Service EndPoint We must define the service endpoints so that the Identity Service can track which OpenStack services are installed and where they are…

OpenStack Image Service In this section regarding OpenStack Image Service, we will cover: 1. Installing OpenStack Image Service 2. Configuring OpenStack Image …

Creating the Service Tenant and Service Users After you install the Identity service, create tenants (projects), users and roles for your environment to authen…

Introduction OpenStack is a suite of software designed to offer scale-out cloud environments, deployed in data centers around the world. Managing the installat…