10 critical skills every DevOps engineer needs for success
Tags: devops, engineer
Published: 2019-06-29 05:56:43

##What is DevOps and Why is it important?##

DevOps is the combination of Development teams and Operation teams in order to create products at a faster pace than with traditional software development practices. DevOps gaining popularity at a rapid pace. Let’s see how DevOps helps the delivery of Software products. 

When the development and operational teams are in separate silos, it makes development life cycles longer due to lack of communication and cooperation between two teams. By merging those two we can make software development cycles shorter. 

DevOps is not a profession. It’s culture. It builds teams and makes engineers work for a common goal rather than individual performances. This leads to better collaboration and increased efficiency. 

More importantly, DevOps reduces development failures, Rollbacks and give time to recover. The main characteristic of DevOps frequent code releases. This helps to find bugs and failures quickly giving more time to rectify bugs or recover from failures. 

##Who is a DevOps Engineer?##

There is no definite definition for a DevOps engineer. DevOps engineer is anyone who works in a DevOps culture. Well, the primary objective of a DevOps engineer is to oversee the code releases. For that, he will have to work with software developers, system operators, testers, etc. to be successful DevOps engineer, There are a set of skills that he must possess. The following list will show you what they are. 

Read more: [10 DevOps Tools to Looks for in 2019](https://hackr.io/blog/top-devops-tools)


###Soft skills and communication###

As we said earlier DevOps tries to combine operation and development. It is obvious, DevOps job requires so much communication. 

Empathy is also a quality that every DevOps engineer should have to be successful. Your empathy will be shown in your team-first mindset. Conflicts and arguments are obvious things in any teamwork. This is where your empathy will be tested. You shouldn’t let these arguments leads to frustration or pointless anger. Empathy will isolate an argument, therefore, no one will keep personal grudges. 

Next important soft skill a DevOps engineer should have is integrity. We know that DevOps is a culture different from traditional software development culture. And DevOps bring people from various IT sectors together. Therefore you should be honest and genuine with what you are capable of doing. Trust within team members is an important quality required to achieve the goals of DevOps team. 

###Knowledge of source control systems###

Source control systems or the version control systems is the main tool behind the collaboration between different developers. As we know by now, DevOps brings people from different IT sectors such as development and operational. Therefore, it is quite an obvious source control systems or version control systems plays a major role in any DevOps engineer life. Version control systems are used to track changes in the application. It also maintains different code versions of the application. To become comfortable with VCS tools require some effort. They come with their own advantages and disadvantages. It is good for any DevOps developer to keep that in mind. 

Following three reasons point out why Version control systems are important for DevOps culture. 

1. It avoids dependency issues in modern containerized applications.
2. It directly affects the performance of DevOps
3. VCS helps to build more reliable applications. 

Any DevOps engineer should have good experience with any of the following tools. 
1.Git
2.CVS
3.SVN
4.Mercurial
 
###Knowledge of continuous integration###

The cornerstone of DevOps is Continuous integration. This is shortly called as CI. CI is a set of processes which is a part of the Build Pipeline. We learned from the previous paragraph that DevOps use a Single version control system for both the development team and operational team. What CI does is merging individual developers code to the master copy of the main branch. You can merge codes any number of times in a day. That's why we call it continuous integration. Jenkins is a famous tool for CI. every developer should know at least one CI tool if he expects to have a successful DevOps career. 


###Knowledge of containers###

A lot of people argue that containers and DevOps were built for one another. Container ecosystem has helped for the popularity of DevOps immensely. Containers have introduced three concepts to DevOps culture; flow, feedback, continual experimentation;  which is now regarded as the three pillars of DevOps. Let’s have a brief introduction to those three concepts. 

A container work as a silo. You can easily forget outside the system when you are inside the container. Inside the container, everything will work in an acceptable manner. This is called flow. 

Containers are a great way to separate the application while providing a way to ship the environment with code which will allow you to have rapid feedbacks from clients. 

Containers make the testing much easier. 
Docker is a famous container technology that every DevOps engineer should know.


###Knowledge of infrastructure automation tools###

Another key element of DevOps is Automation. You can’t think of DevOps without thinking automation. Most of the manual tasks can be automated using scripting languages such as Python, Shell, Bash. Automation helps DevOps engineers to ensure consistent performance. Moreover, It will save a lot of time DevOps engineers which can be spent on more important goals. Therefore the knowledge of Automation is vital for the success of any DevOps engineer. 

###Knowledge of clouds###
Competition in the software development world is getting bigger day by day. As a result of that product development and releasing has become highly sophisticated over the last few years. Business agility has become the key to survive in this competitive market. Most organizations are started using clouds considering many benefits it offers. 

Knowledge of cloud has been pertinent not only for DevOps but also for software developers. For many organizations, the cloud has been a major part of DevOps culture. Both of them have great potential to offer speed and agility to businesses. The following list will show you 5 benefits using cloud within DevOps culture. 

*Easy Automation*  - we learned about the automation in the previous paragraph. Cloud makes automation easier. 

*Cloud-server replication* - back up mechanism is an integral part of any cloud service. Still, you have to manually launch the servers first and then restore the backup on a different environment.

*Orchestration* - it is a special way of automation. It is a way of providing complete coordination and control in automation which covers the entire hierarchy in the infrastructure. Some examples of orchestration tools are Chef, Puppet, and Ansible.

*Effective Monitoring* - most cloud services provides necessary tools to monitor your application. 

*Rapid Deployment* - you can find many tools with any cloud provider to deploy your application faster. 
It is quite obvious by now, that knowledge of cloud technology is vital for the success of any DevOps engineer. 

###Knowledge of Security###

As I have already mentioned, the primary goal of DevOps is to release codes faster. It is obvious that faster releases lead to vulnerabilities. Data breaches have been the biggest threat to software applications.  Therefore, it’s the responsibility of the DevOps engineer to write secure code which is required to protect the applications from attacks. These attacks could vary from SQL injections to XSS attacks to unrecognized attacks. All security threats don’t have to be invoked by a human. There could be security pitfalls in the application itself. DevOps should have an idea about all these things. DevOps Engineer doesn’t have to be a security expert. But having trained in security coding can help his job greatly. 


###Testing###

The main objective of DevOps is to accelerate the delivery of software. But there is no point if there are bugs in whatever you deliver. The quality component is an important factor in any software release. 
Therefore every DevOps team must adopt continuous testing to their DevOps culture. Therefore, Testing is an important skill for anyone who is going to be a DevOps engineer. 

Let’s discuss what is Testing in a DevOps environment really means. If you consider the top performing DevOps organizations such as Amazon and Netflix, they utilize performance testing, load, automated regression, and security testing. Their goal is to build software quality into DevOps pipeline. So they are ensured to be run on every build. To do such things, obviously, you have to have a good knowledge of testing. 



###Collaboration###

DevOps engineers do not work for personal goals. They have team goals. Any problem is everyone's problem. DevOps engineers should help to assist coworkers in their troubles. The key is to have empathy towards others. Another point is, DevOps engineers work in small batches from performing code to doing acceptance testing. It allows coworkers to do their job easily. 

###Big picture thinking###

DevOps always considers the client is the most important things. Their purpose is delivering the product for the client. This requires them to have a big picture of what they should be doing. They have to clearly understand the requirement of the client. Often, DevOps engineers lack this ability. The main reason for that is, most of the DevOps engineer coming from the software development background. There are not too many who have been practices to become a DevOps engineer. Essentially, there is quite a gap between a software a DevOps engineer. Understanding this gap will help you to do your job successfully. A software developer only has to code what he was asked to code. As a DevOps engineer, you should see the bigger picture, which required to satisfy the client. 

Start your learning from here.

Also, you can’t take one fault from one project to another project. Thinking the bigger picture will help you to solve this problem as well.