Guide for How to Become A DevOps Specialist?

Glad you are interested in becoming a DevOps engineer. However, before you really become a DevOps engineer, you need to understand that DevOps is a big category. In specific positions, it can be divided into three categories:

1. DevOps engineers who are biased towards development (Dev) and play the role of software development in building applications. Part of their daily work is to use continuous integration/continuous delivery (CI/CD), shared warehouses, clouds, and containers, but they are not necessarily responsible for building or implementing tools. They understand the infrastructure, and in a mature environment, they can push their code to the production environment.

2. DevOps engineers who are biased towards operation and maintenance technology (Ops) can be compared with system engineers or system administrators. They understand software development, but they don’t focus their day on building applications. Instead, they are more likely to support software development teams to automate manual processes and increase the efficiency of personnel and technical systems.

This may mean breaking down legacy code and using less cumbersome automated scripts to run the same commands, or it may mean installing, configuring, or maintaining infrastructure and tools. They ensure that tools are available for any team in need.
They will also help them by teaching the team how to use CI/CD and other DevOps practices.

3. A website reliability engineer (SRE) is like a software engineer who solves operations and infrastructure. SRE focuses on creating scalable, highly available and reliable software systems.

In addition, you need to learn a lot of basic knowledge, for example: the operating system is the place where everything runs, and it is very important to have relevant basic knowledge. Linux is the operating system you are most likely to use every day, although some organizations will use the Windows operating system.

To get started, you can install Linux at home, where you can interrupt as you like, and learn in the process. Script Next, choose a language to learn script programming. There are many languages to choose from, including Python, Go, Java, Bash, PowerShell, Ruby, and C/C++. I recommend starting with Python because it is relatively easy to learn and explain and is one of the most popular languages.

Python is usually written in accordance with the principles of object-oriented programming (OOP) and can be used for web development, software development, and creating desktop GUIs and business applications. After learning Linux and Python from the cloud, I think the next thing to learn is cloud computing.

Infrastructure is no longer just a matter of "operation and maintenance brother", so you need to contact cloud platforms, such as AWS cloud services, Azure or Google cloud platform. I will start with AWS, because it has a large number of free learning tools that can help you reduce any obstacles as a developer, operation and maintenance personnel, and even business-oriented departments.

In fact, you may be overwhelmed by what it provides. Consider starting with EC2, S3, and VPC, and then see what you want to learn from it. Programming Language If you are passionate about DevOps software development, please continue to improve your programming skills.

Some excellent and commonly used programming languages in DevOps are the same as those you use for scripting: Python, Go, Java, Bash, PowerShell, Ruby, and C/C++. You should also be familiar with Jenkins and Git / Github, you will use them frequently during the CI / CD process. Containers Finally, use tools such as Docker and orchestration platforms (such as Kubernetes) to start learning containerization.
There are a lot of free learning resources online, and most cities have local offline groups. You can learn from experienced people in a friendly environment (and pizza and beer!).

In addition, you also need to do something professionally, such as finding a job in DevOps. Of course, if you are a newcomer to the workplace: Then, apply for the vacancy opportunities of companies that hire junior DevOps engineers. Unfortunately, many companies say they want to find more experienced people and recommend that you apply for the position after gaining experience.

This is a typical, frustrating scenario of "we need experienced people", and no one seems to be willing to give you your first chance. If you already work: first try to find opportunities in your current company. Can you regain your skills by working with other teams? Try to follow other team members, seek advice, and acquire new skills without leaving your current job. If this is not possible, you may need to change to another company.

If you can learn from some of the practices, tools and techniques listed above, you will be able to demonstrate relevant knowledge during the interview and occupy a favorable position. The key is to be honest and not to worry about failure. Most recruitment executives understand that you don’t know all the answers; if you can show what you have been learning and explain that you are willing to learn more, you should have the opportunity to get a job in DevOps.