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nitesh_agrawal2
Explorer

For the past 3 odd months one word keeps buzzing around me here and there. In the cubicles, Over the coffee corners, or even in the all hands by big shots, I used to hear - 'DevOps' is coming. Some would say this is the 'next' big thing in software development cycle. Some would say it is the evolution of 'agile'
while some would say it is a paradigm shift in how software will be produced.

Mostly I kept my mouth shut. Didn't knew what DevOps is.

Somehow got lucky and got an opportunity to attend World DevOps Summit Bangalore 2015 organized by UNICOM on 29th may.

Few more colleagues were there and it was a great learning experience for me, as a beginner to the world of DevOps.

In this blog I would try to summarize my learnings from the conference.

Thanks for reading in advance.

The first session was presented by Mr. Ramesh Iyengar, Vice President & Global Head of DevOps practice, Tech Mahindra. He talked about how Tech Mahindra brings end to end solution offerings with 5Cs of DevOps.

The 5Cs are:

  1. Continuous Planning
  2. Continuous Integration
  3. Continuous Testing
  4. Continuous Deployment
  5. Continuous Monitoring

It was great to see practices like Continuous Integration and testing as in our organization we are following them rigorously.

So we are following some of the concepts of  DevOps already :smile:

These 5Cs are the essence of DevOps

One important point that every speaker in the conference said and was a key take away is that Development and Operations are no longer separate entities. (or they should not be separate entities).

They need not to be merged but they definitely needs to be overlapped.

Even for that mater QA colleagues, Product owners, Product management every body needs to actively participate from the first phase of planning to last phase of monitoring the deployed software.

[ of course there are experts in respective areas which they should continue to be to, but an overlap of effort is required for a successful product ]

This requires a culture and mindset change but is essential.

Every body needs to have a 'Shared Vision'. This is like a basic principle of DevOps.

One important point Ramesh mentioned was the usefulness of Continuous Monitoring.

The metrics data whether as logs or in some visualization should have a business value. This is must.

Then only the first phase Planning can be improved. This brings limelight to Developer to have logs/dumps in such a way that can generate value. And also the Ops guy can now suggest how and what should go into logs which makes sense to generate value. You see it is a chain.

There is a dependency. Collaboration, Communication is the key.


The second session was a panel discussion, where Industry experts who are living DevOps discussed about the challenges and opportunities DevOps brings. It was more about balancing the 3 pillars of DevOps:

a. Managing People

b. Managing Process

c. Managing Technology change.

Mr. Narayanan Subramaniam, Principal Engineer, CISCO systems made a very important point of 'Cross Skilling'.
He mentioned that Developers needs to be rotated to Operations and vice a versa.
Its important for a developer to get the system view to generate and understand metrics. (output of monitoring)
Ops needs to give feedback to dev.
Importantly -- Education to product management is also required to prioritize backlog items (coz priorities will change with DevOps)

Continuous delivery/ deployment should happen the following way:

  • Make release small and track faster.This will help in roll back if case arises.
  • Feature toggle
  • Think simple + think small

From the mindset/culture point of view 2 key points came out of discussion :

  • Have empathy. Think what other guy is doing.
  • Think outside your role


Third Session was by Mr. Rodrigo Gonzalez, CEO of Clarive Software Inc. He focused on Bimodal DevOps and how it can be effective when adopted in traditional settings.
Basically Bimodal IT, is a organization model for Enterprise IT, introduced by Gartner in 2014. It states that IT organizations of the future will have two separate flavors. Type 1 is traditional IT, focused on stability and efficiency and Type 2 is an experimental agile organization focused on time to market and rapid application evolution.

Gonzalez in his session talked about how DevOps will act as a bridge between these two types.

Frankly speaking this was a tough session and I couldn't grasp most of the things. But yes some food for thought and keywords to Google out the details.


Fourth session was about - DevOps implementation in an ecommerce platform by Rajith Raveendranath of Huawei Technologies. He drew an analogy between game of Chess and DevOps and mentioned some of the 'Book Moves' for DevOps.
His focus was on how development teams can avoid commonly occurring 'waste'.


He suggested:

  • Merge early and often to avoid merge issues.
  • Developer build on each commit.
  • Merge to master daily.
  • Keeping builds green and clean

Emphasized on User Acceptance Test (UTA) and not the smoke tests as a criteria for releasing the software.

For Operations, again the same word Communication was highlighted and the importance of educating Dev about Ops.

He actively writes blog posts related to agile and DevOps @ http://agileiq.blogspot.in/


The Simian Army:

Next was an interesting session by IBM folks. They showed how Cloud Testing is done in 'Production Environment'.
This was done using open source cloud testing tools developed by Netflix called The Simian Army. The tool allows users to test reliability, security, resiliency and recoverability of the cloud services.
In a nut shell The Simian Army consists of software agents called monkeys who attack the cloud services and are used to improve availability and reliability of the services.
For more information just Google out Netflix Simian Army.


In one of the session, there was an slide depicting DevOps principals.


It depicted 4 key areas of interaction between Dev and Ops.


Some tools were also discussed for a successful DevOps. Tools that facilitates collaboration between Dev and Ops.
Most of the tools were completely new to me and I had never heard of them before like Chef and Puppet.
But then certain tools like Jenkins and GIT and Docker were also mentioned.

All in all it was a great experience, learnt something new and least I forget to mention, lunch was Awesome :smile:

P.S. There was a selfie contest (with props) and we took the below picture.  Yes, that's Dhawal in between.

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