Welcome!

DevOps Journal Authors: Pat Romanski, Elizabeth White, Carmen Gonzalez, Lori MacVittie, Liz McMillan

Related Topics: DevOps Journal, Java, SOA & WOA, Virtualization, Cloud Expo, SDN Journal

DevOps Journal: Blog Feed Post

Application-Driven vs Feature-Driven Orchestration

One of the challenges in scaling modern data centers rises directly from an increase in network complexity

One of the challenges in scaling modern data centers rises directly from an increase in network complexity over the past few years. We can argue why complexity has increased, but it's reasonable to say that scaling data centers means more boxes - more servers, more network gear, more middle boxes - and every device (or service) you add increases the complexity of the topology and thus the operational overhead to manage it. Organizations agree - things are somewhat or substantially getting more complex.

changes in ntework complexity

Software-defined architectures attempt to answer this challenge (among several others) by operationalizing the network. By using APIs to orchestrate provisioning processes and enable the integration necessary to make use of actionable monitoring data generated by various systems across the data center, software-defined architectures accelerate application deployments and reduce risk by eliminating a source of error - manual configuration.

Now, you might think that's where it all ends. But it doesn't. Because the way in which an API is presented and used to enable automation and orchestration can actually introduce the very same complexity that it attempts to address in the first place.

There are basically two ways to approach provisioning and orchestration: application-driven or feature-driven.

Feature-Driven Orchestration

Feature-driven orchestration is so named because the granularity of the API is, basically, at a feature (or capability) level. What that means is that the API exposes individual configuration options and automation systems must invoke each one (often in the right order) to achieve the desired result.

Something like a simple load balancing service is simple only from the perspective of execution, not configuration. A load balancing service requires a virtual IP address (the end point to which clients connect), a pool of resources (each with their own IP addresses and potentially VLAN membership), an algorithm and any associated thresholds and metrics that may be required and health monitors to ensure compliance with availability and performance expectations.

You can imagine that, if the number of applications being load balanced by this service is large enough, that the number of repetitive steps required to configure the service will become as unwieldy as a manual configuration.

feature-driven-integrationThe same is true of other application services typically provided by the network, such as those concerned with performance, security and access. Each has a unique set of "steps" that must be performed in the right order to provision a service.

Feature-driven orchestration requires the provisioning engine (or orchestration system) to drive each and every step. That adds complexity to an already complex process, because you really are just tossing a thin veneer of "automation" over an existing method of configuration. Feature-driven orchestration is pretty much manual configuration (line by line) driven by a script. Instead of worrying about fat-fingering a parameter, now you have to worry about catching fifteen or twenty different exceptions and status results and handling them properly from a script.

Application-Driven Orchestration

Application-driven orchestration, on the other hand, takes advantage of constructs like service templates and policies to enable a less complex method of integration with provisioning and orchestration systems.

Rather than focus on encapsulating commands into API calls as is the case with feature-driven orchestration, application-driven orchestration focuses on aggregating only the data necessary to execute a provisioning workflow. This data is encoded in a policy or template and handed over to the service to be acted upon. The service takes the policy or template and manages the provisioning process internally, ensuring that the expected order of operations is followed and eliminating the need for operators to handle exceptions and corner cases and special status codes themselves.

Application-driven orchestration offers a safer and more efficient approach to provisioning.

application-driven-provisioning

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

An application-driven orchestration approach not only accelerates application deployment and maintains a lower risk profile but it also enables application migration across disparate environments.

Configuring a service in one environment, driven by a specific provisioning or orchestration engine, is a very specific task. Moving the application and the service to, say,a cloud environment would mean duplicating that same effort again with another provisioning or orchestration engine.

An application-driven approach that leverages templates and policies, on the other hand, can make it possible to migrate an application without incurring the cost and time associated with the repetitive integration work required by feature-driven orchestration. The policy or template can migrate with the application and easily be used to provision the same services - with the same characteristics - in the cloud environment, without incurring a whole lot of time or effort.

APis are a good thing. They're a key enabler of software-defined architectures like SDDC, cloud and SDN. But API-enabling infrastructure doesn't necessarily mean only on a checkbox and radio-button basis. That can be valuable but it can also lead to integration efforts that are just as complex (or more so) than their manual counterparts. A template or policy-based (application-driven) approach  coupled with an API through which to deliver and execute such constructs results in a much cleaner, more consistent and stable means of integrating provisioning processes into the greater software-defined architecture.

Read the original blog entry...

More Stories By Lori MacVittie

Lori MacVittie is responsible for education and evangelism of application services available across F5’s entire product suite. Her role includes authorship of technical materials and participation in a number of community-based forums and industry standards organizations, among other efforts. MacVittie has extensive programming experience as an application architect, as well as network and systems development and administration expertise. Prior to joining F5, MacVittie was an award-winning Senior Technology Editor at Network Computing Magazine, where she conducted product research and evaluation focused on integration with application and network architectures, and authored articles on a variety of topics aimed at IT professionals. Her most recent area of focus included SOA-related products and architectures. She holds a B.S. in Information and Computing Science from the University of Wisconsin at Green Bay, and an M.S. in Computer Science from Nova Southeastern University.

@DevOpsSummit Stories
Blue Box has closed a $10 million Series B financing. The round was led by a strategic investor and included participation from prior investors including Voyager Capital and Founders Collective, as well as the Blue Box executive team. This round follows a $4.3 million Series A closed in December of 2012 and led by Voyager Capital. In May of this year, the company announced general availability of its private cloud as a service offering, Blue Box Cloud. Since that release, the company has dem...
The speed of product development has increased massively in the past 10 years. At the same time our formal secure development and SDL methodologies have fallen behind. This forces product developers to choose between rapid release times and security. In his session at DevOps Summit, Michael Murray, Director of Cyber Security Consulting and Assessment at GE Healthcare, will examine the problems and present some solutions for moving security in to the DevOps lifecycle to ensure that we get fast A...
SYS-CON Events announced today that Zentera Systems, an industry visionary delivering hybrid-cloud management solutions, will exhibit at DevOps Summit Silicon Valley, which will take place on November 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA. Zentera Systems, Inc.™ is a Silicon Valley based private company, providing a Cloud Federation Platform (CFP) built on a virtualization architecture with patent-pending technology to address virtual network, cloud firewall, data p...
Software development, like manufacturing, is a craft that requires the application of creative approaches to solve problems given a wide range of constraints. However, while engineering design may be craftwork, the production of most designed objects relies on a standardized and automated manufacturing process. By contrast, much of moving an application from prototype to production and, indeed, maintaining the application through its lifecycle has often remained craftwork. In his session at De...
High performing enterprise Software Quality Assurance (SQA) teams validate systems are ready for use – getting most actively involved as components integrate and form complete systems. These teams catch and report on defects, making sure the customer gets the best software possible. SQA teams have leveraged automation and virtualization to execute more thorough testing in less time – bringing Dev and Ops together, ensuring production readiness. Does the emergence of DevOps mean the end of Enterp...
In his keynote at DevOps Summit, David Tesar, Microsoft Technical Evangelist on Microsoft Azure and DevOps, will discuss how Microsoft teams who have made huge progress with a DevOps transformation effectively utilize operations staff and how challenges were overcome. Regardless of whether you are a startup or a mature enterprise, whether you are using PaaS, Micro Services, or Containerization, walk away with some practical tips where Ops can make a significant impact working with the developmen...
Cloudwick, the leading big data DevOps service and solution provider to the Fortune 1000, announced Big Loop, its multi-vendor operations platform. Cloudwick Big Loop creates greater collaboration between Fortune 1000 IT staff, developers and their database management systems as well as big data vendors. This allows customers to comprehensively manage and oversee their entire infrastructure, which leads to more successful production cluster operations, and scale-out. Cloudwick Big Loop supports ...

POMPTON LAKES, N.J., Oct. 17, 2014 /PRNewswire/ -- Kubisys announced today its namesake CID Platform, which automatically captures production environments and orchestrates the provisioning and deployment of replicas for development, testing and QA. The Kubisys CID Platform makes it easy for developers of mission critical multi-tier applications, such as Microsoft Dynamics AX, to follow DevOps practices for continuous delivery. The Oct. 20, 2014 04:00 PM EDT  Reads: 1,667

The recent trends like cloud computing, social, mobile and Internet of Things are forcing enterprises to modernize in order to compete in the competitive globalized markets. However, enterprises are approaching newer technologies with a more silo-ed way, gaining only sub optimal benefits. The Modern Enterprise model is presented as a newer way to think of enterprise IT, which takes a more holistic approach to embracing modern technologies. This model makes use of Composable Enterprise framework ...
Through the magic of cloud computing, infrastructure is no longer the long pole in the IT process. Organizations can now set up the infrastructure they require within minutes instead of weeks. However, removing this bottleneck has exposed another; application delivery is the next issue to be resolved. With the ongoing move to digital-first enterprises, companies are now faced with a software-intensive business environment. Simply put, IT needs to figure out how to accelerate the application depl...
There's fog coming to the world of IT. Some people are calling this "The Cloud." This fog turns everything inside out. It will take your monolithic applications, the guts of which are contained within large bodies of code, and break them apart so that discrete units of functionality are contained within their own process, exposed through an interface for others to see. Complexity is moving from the inside of a few large processes to the outside of many smaller processes. People are rightly sca...
This is part of the ever-expanding "Microservices and PaaS" blog series covering the rapidly evolving use of microservices in modern cloud software projects. Parts I and II introduced microservices concepts and discussed patterns and practices being spearheaded by microservices pioneers, notably Netflix, who were represented at a recent microservices meetup that was the genesis of this series. Part III presented a list of challenges and pitfalls that adopters of microservices face. This list is...
In their session at DevOps Summit, Stan Klimoff, CTO of Qubell, and Mike Becker, Senior Data Engineer for RingCentral, will share the lessons learned from implementing CI/CD pipeline on AWS for a customer analytics project powered by Cloudera Hadoop, HP Vertica and Tableau. Stan Klimoff is CTO of Qubell, the enterprise DevOps platform. Stan has more than a decade of experience building distributed systems for companies such as eBay, Cisco and Seagate. Qubell is helping enterprises to become mor...
The impact of DevOps in the cloud era is potentially profound. DevOps helps businesses deliver new features continuously, reduce cycle time and achieve sustained innovation by applying agile and lean principles to assist all stakeholders in an organization that develop, operate, or benefit from the business’ lifecycle. In his session at DevOps Summit, Prashanth Chandrasekar, General Manager at Rackspace, will exam whether / how companies can work with external DevOps specialists to achieve "De...
I just recently wrote a blog about BOTs causing unwanted traffic on our servers. Right after I wrote this blog I was notified about yet another “interesting” and unusual load behavior on our download page which is used by customers to download latest product versions and updates. If you see such a load behavior you typically assume that you just released a new product version or maybe an update to our agents and many people are downloading it like crazy. Unfortunately that was not the case. The...
SYS-CON Events announced today that O'Reilly Media has been named “Media Sponsor” of SYS-CON's 15th International Cloud Expo®, which will take place on November 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA. O'Reilly Media spreads the knowledge of innovators through its books, online services, magazines, and conferences. Since 1978, O'Reilly Media has been a chronicler and catalyst of cutting-edge development, homing in on the technology trends that really matter and spurri...
SYS-CON Events announced today that Gigaom Research has been named "Media Sponsor" of SYS-CON's 15th International Cloud Expo®, which will take place on November 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA. Ashar Baig, Research Director, Cloud, at Gigaom Research, will also lead a Power Panel on the topic "Choosing the Right Cloud Option." Gigaom Research provides timely, in-depth analysis of emerging technologies for individual and corporate subscribers. Gigaom Research'...
Today, almost every company has a directory that needs to be managed. Spending valuable company time monitoring servers, provisioning and deprovisioning users, auditing, and assessing security concerns takes away from the core competency of the team – building product and delivering to customers quickly. DaaS takes on the burden of those tasks, and allows the team to focus on what they do best. In his session at DevOps Summit, Rajat Bahargava, Co-Founder, Chairman, and President & CEO of JumpClo...
The 4th International DevOps Summit, co-located with16th International Cloud Expo – being held June 9-11, 2015, at the Javits Center in New York City, NY – announces that its Call for Papers is now open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the world's large...
The move in recent years to cloud computing services and architectures has added significant pace to the application development and deployment environment. When enterprise IT can spin up large computing instances in just minutes, developers can also design and deploy in small timeframes that were unimaginable a few years ago. The consequent move toward lean, agile, and fast development leads to the need for the development and operations sides to work very closely together. Thus, DevOps becomes...