Microservices Expo Authors: Mehdi Daoudi, Elizabeth White, Pat Romanski, Flint Brenton, Gordon Haff

Related Topics: @CloudExpo, Microservices Expo, @DevOpsSummit

@CloudExpo: Blog Post

Have You Started Your Infrastructure as Code (IaC) Journey? | @CloudExpo #IaaS #Cloud #Analytics

What is Infrastructure as Code? How do you determine if your IT infrastructure is truly automated?

A recent survey done across top Fortune 500 companies shows almost 70% of the CIOs have either heard about IaC from their infrastructure head or they are on their way to implementing IaC. Yet if you look under the hood, while some level of automation has been done, most of the infrastructure is still managed in a traditional / legacy way.

What is Infrastructure as Code? How do you determine if your IT infrastructure is truly automated? "IaC is an approach and mind-set to automate infrastructure provisioning and management based on best practices from the world of software development. It underscores consistent, repeatable procedures for provisioning and changing systems configuration". The two key words here are ‘approach' and ‘mind-set'. While ‘approach' signifies that the deploying and managing infrastructure should not be any different from the deploying and managing of a software application, the ‘mind-set' signifies a radical change on how a traditional operations engineer thinks of operating and managing systems (compute, storage, network).  Treating infrastructure as a piece of software requires a major shift from the traditional way of provisioning and managing infrastructure. It requires change in both technology and underlying processes. It warrants the need to think like a software engineer rather than think like a systems administrator. ‘Kief Morris', Author of Infrastructure as code book has described following basic principles of Infrastructure as Code

  1. Systems are easily reproduced
  2. Systems are disposable
  3. Systems are consistent
  4. Processes are reproducible
  5. Design is always changing

Principle #1. Systems are easily reproduced.
In the cloud based world we live today, this is the fundamental building block. Systems needs to be provisioned automatically with a press of button. While most of the companies have figured this out and have some form of automation to provision compute infrastructure, it's still far from where business can see value. Value gets generated not when one element of infrastructure gets provisioned programmatically, but when all components of infrastructure can be provisioned programmatically. From compute to storage & network everything should be automated. And why stop at the IaaS layer? Automation should go all the way to configure and install required software which can then be immediately used by business. This will result in achieving maximum business value. Automating end to end not only results in reduction of provisioning time but also reduces risk of human error and configuration mismatches which often occurs when building manually. It also makes life easy for infrastructure engineers to manage the systems over the period of systems life-cycle.

Principle #2. Systems are disposable.
A common analogy given in the industry is of cattle and pets. Pets are treated special and needs to be given special care. Cattle is in plenty, they serve the same purpose and most important they are easily replaceable. In traditional infrastructure world, all the systems are treated like pets. Each system needs to be given special care and most important each system differ from one another. If the system goes down for any unplanned reason, the only option is to scramble the operators to bring it up. This method comes at a huge cost of business downtime and high maintenance cost.  With the advancement of cloud native applications which are mostly resilient at application layer, this problem can be avoided. By creating systems which are clones of each other (containers) and that can be easily created, destroyed, replaced, resized and moved we no longer need to treat each system like pets. If one system (VM or container) goes down, instead of spending time to troubleshoot and bring it, we simply build another one from predefined image and replace it with the one which went down. While this sounds simple, complexity of implementation lies at the application tier. If the applications are traditional monolithic application which depends on infrastructure to provide resiliency, implementing this model will be tough. However, if applications are cloud native, stateless micro services, it's easy to treat systems as disposable.

Principle #3: Systems are consistent.
How many times you have come across an incident only to realize the root cause is due to missing file or outdated driver/firmware? Chances are most of the time outages happen because the systems are not consistent. Each system looks different from one another even though they serve the same application running on them. Commonly known as snow-flake computing in the industry, this creates a huge problem for any infrastructure head. Inconsistent systems not only result in unplanned outages, but can also lead to performance issues and other problems which impacts business. Peeling the onion further will lead to the underlying root cause as human failure. Humans are prone at making mistakes, we forget and even the best system engineer can cause an outage if he or she is manually making system changes. By automating configuration and system management, one can avoid snow flake computing. Manual system changes should only be allowed in rare circumstances like critical incidents only if there are no other alternatives. A defect ticket should be created post incident to ensure all the systems gets updated with the system changes done during incident. Systems should be built from a common operating system image and any application related customization should be pushed via run-books. This will ensure at any given time all the systems are consistent to each other and will guarantee higher business uptime.

Principle #4. Processes are reproducible.
One cannot deny the fact that any enterprise today is loaded with processes. The more processes humans are expected to follow, higher the chances of human error. While processes are integral part of operations, it's important that they are consistent and reproducible so everyone can follow the same exact steps to do a particular task. Left to humans, each human will execute the same task following a slight different process leading to issues. We have probably encountered issues when one of key member leaves the team and other team members cannot figure out how to carry on the same task. Solution lies in ensuring each task is scripted and stored in a common software repository. Every system operator is expected to execute the predefined script rather than executing manual steps which differs from the scripted tasks. Any change in process or task should result in a new version of the script being uploaded in the repository with clear documentation of the changes done.

Principle #5. Design is always changing.
In today age where business model is changing at much faster pace than ever before, its expected that the underlying infrastructure serving the business application can adapt to the change at the same pace. Yet, most of the times in traditional enterprise IT, change in application architecture almost results in building new underlying infrastructure which is very costly. Systems are built for specific application architecture and any change at application layer becomes complex and expensive task at infrastructure layer to implement. In the cloud based world, infrastructure should be built in such a way that's easy to scale to meet business demand. Systems should be designed to accept change as a norm rather than as exception. After all the only thing that is constant is change!

Infrastructure as Code sounds complex to implement, however it's a journey and every journey starts with a single step. It is no longer an option, but a must for any IT to move towards automating infrastructure to meet the business demand. What are you waiting for?

More Stories By Ashish Nanjiani

Ashish Nanjiani is a Senior IT Manager within Cisco IT managing Cisco worldwide IT data centers as an operations manager. With 20 years of IT experience, he is an expert in data center operations and automation. He has spoken in many inter-company events on data center automation and helps IT professionals digitize their IT operations. He is also an entrepreneur and has been successfully running a website business for 10+ years.

Ashish holds a Bachelor of Science degree in Electrical and Electronics and a Masters in Business Administration. He is a certified PMP, Scrum master. He is married and has two lovely daughters. He enjoys playing with technology during his free time. [email protected]

@MicroservicesExpo Stories
For over a decade, Application Programming Interface or APIs have been used to exchange data between multiple platforms. From social media to news and media sites, most websites depend on APIs to provide a dynamic and real-time digital experience. APIs have made its way into almost every device and service available today and it continues to spur innovations in every field of technology. There are multiple programming languages used to build and run applications in the online world. And just li...
The dynamic nature of the cloud means that change is a constant when it comes to modern cloud-based infrastructure. Delivering modern applications to end users, therefore, is a constantly shifting challenge. Delivery automation helps IT Ops teams ensure that apps are providing an optimal end user experience over hybrid-cloud and multi-cloud environments, no matter what the current state of the infrastructure is. To employ a delivery automation strategy that reflects your business rules, making r...
"We started a Master of Science in business analytics - that's the hot topic. We serve the business community around San Francisco so we educate the working professionals and this is where they all want to be," explained Judy Lee, Associate Professor and Department Chair at Golden Gate University, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
There is a huge demand for responsive, real-time mobile and web experiences, but current architectural patterns do not easily accommodate applications that respond to events in real time. Common solutions using message queues or HTTP long-polling quickly lead to resiliency, scalability and development velocity challenges. In his session at 21st Cloud Expo, Ryland Degnan, a Senior Software Engineer on the Netflix Edge Platform team, will discuss how by leveraging a reactive stream-based protocol,...
The general concepts of DevOps have played a central role advancing the modern software delivery industry. With the library of DevOps best practices, tips and guides expanding quickly, it can be difficult to track down the best and most accurate resources and information. In order to help the software development community, and to further our own learning, we reached out to leading industry analysts and asked them about an increasingly popular tenet of a DevOps transformation: collaboration.
We call it DevOps but much of the time there’s a lot more discussion about the needs and concerns of developers than there is about other groups. There’s a focus on improved and less isolated developer workflows. There are many discussions around collaboration, continuous integration and delivery, issue tracking, source code control, code review, IDEs, and xPaaS – and all the tools that enable those things. Changes in developer practices may come up – such as developers taking ownership of code ...
Cloud Governance means many things to many people. Heck, just the word cloud means different things depending on who you are talking to. While definitions can vary, controlling access to cloud resources is invariably a central piece of any governance program. Enterprise cloud computing has transformed IT. Cloud computing decreases time-to-market, improves agility by allowing businesses to adapt quickly to changing market demands, and, ultimately, drives down costs.
Modern software design has fundamentally changed how we manage applications, causing many to turn to containers as the new virtual machine for resource management. As container adoption grows beyond stateless applications to stateful workloads, the need for persistent storage is foundational - something customers routinely cite as a top pain point. In his session at @DevOpsSummit at 21st Cloud Expo, Bill Borsari, Head of Systems Engineering at Datera, explored how organizations can reap the bene...
How is DevOps going within your organization? If you need some help measuring just how well it is going, we have prepared a list of some key DevOps metrics to track. These metrics can help you understand how your team is doing over time. The word DevOps means different things to different people. Some say it a culture and every vendor in the industry claims that their tools help with DevOps. Depending on how you define DevOps, some of these metrics may matter more or less to you and your team.
"CA has been doing a lot of things in the area of DevOps. Now we have a complete set of tool sets in order to enable customers to go all the way from planning to development to testing down to release into the operations," explained Aruna Ravichandran, Vice President of Global Marketing and Strategy at CA Technologies, in this SYS-CON.tv interview at DevOps Summit at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"We are an integrator of carrier ethernet and bandwidth to get people to connect to the cloud, to the SaaS providers, and the IaaS providers all on ethernet," explained Paul Mako, CEO & CTO of Massive Networks, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"Grape Up leverages Cloud Native technologies and helps companies build software using microservices, and work the DevOps agile way. We've been doing digital innovation for the last 12 years," explained Daniel Heckman, of Grape Up in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"NetApp's vision is how we help organizations manage data - delivering the right data in the right place, in the right time, to the people who need it, and doing it agnostic to what the platform is," explained Josh Atwell, Developer Advocate for NetApp, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"Outscale was founded in 2010, is based in France, is a strategic partner to Dassault Systémes and has done quite a bit of work with divisions of Dassault," explained Jackie Funk, Digital Marketing exec at Outscale, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"I focus on what we are calling CAST Highlight, which is our SaaS application portfolio analysis tool. It is an extremely lightweight tool that can integrate with pretty much any build process right now," explained Andrew Siegmund, Application Migration Specialist for CAST, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Let's do a visualization exercise. Imagine it's December 31, 2018, and you're ringing in the New Year with your friends and family. You think back on everything that you accomplished in the last year: your company's revenue is through the roof thanks to the success of your product, and you were promoted to Lead Developer. 2019 is poised to be an even bigger year for your company because you have the tools and insight to scale as quickly as demand requires. You're a happy human, and it's not just...
The enterprise data storage marketplace is poised to become a battlefield. No longer the quiet backwater of cloud computing services, the focus of this global transition is now going from compute to storage. An overview of recent storage market history is needed to understand why this transition is important. Before 2007 and the birth of the cloud computing market we are witnessing today, the on-premise model hosted in large local data centers dominated enterprise storage. Key marketplace play...
Cavirin Systems has just announced C2, a SaaS offering designed to bring continuous security assessment and remediation to hybrid environments, containers, and data centers. Cavirin C2 is deployed within Amazon Web Services (AWS) and features a flexible licensing model for easy scalability and clear pay-as-you-go pricing. Although native to AWS, it also supports assessment and remediation of virtual or container instances within Microsoft Azure, Google Cloud Platform (GCP), or on-premise. By dr...
With continuous delivery (CD) almost always in the spotlight, continuous integration (CI) is often left out in the cold. Indeed, it's been in use for so long and so widely, we often take the model for granted. So what is CI and how can you make the most of it? This blog is intended to answer those questions. Before we step into examining CI, we need to look back. Software developers often work in small teams and modularity, and need to integrate their changes with the rest of the project code b...
Kubernetes is an open source system for automating deployment, scaling, and management of containerized applications. Kubernetes was originally built by Google, leveraging years of experience with managing container workloads, and is now a Cloud Native Compute Foundation (CNCF) project. Kubernetes has been widely adopted by the community, supported on all major public and private cloud providers, and is gaining rapid adoption in enterprises. However, Kubernetes may seem intimidating and complex ...