A DevOps engineer is the one who keeps the knowledge of both development and operations, including coding, infrastructure management, system administration, and DevOps toolchains. In other words, A DevOps Engineer is an IT professional who collaborates with developers, and the operation team with having a thorough knowledge of various automation tools for developing digital pipelines and managing the deployment and other processes.
One of the most basic and crucial skills to become a DevOps Engineer is knowing programming languages, whether it is the job of debugging or integrating database changes. The job of DevOps Engineer is increasing day by day. It comes in 2nd position over top 50 in America and India, its demand is increasing day by day as well.
DevOps is a culture and methodology but itās a āRoleā too.
By implementing DevOps organizations can provide continuous delivery of softwareās with less complex problems to fix and faster solutions of the problems which ultimately means faster delivery of the features, more stable operating environments and they can have more time to add value rather than spending time on fixing and maintaining. This is the reason organizations wants to hire DevOps engineers without wasting any time.
Let’s see what skills you need to know to become a DevOps engineer –
Linux and OS Concepts
The majority of businesses use the Linux operating system for their applications. It is not necessary to have extensive knowledge of Linux; nonetheless, a fundamental comprehension of the operating system will help you achieve better outcomes. So you should know is:-
- Basic Shell Commands
- Linux File System
- basics of how to administer a server
- SSH Key Management
- installing different tools on servers
Software configuration and deployment
To improve the dependability, consistency, and amount of accurate deliveries, engineers must automate the deployment process.
In the production environment, Puppet or Ansible are used to configure and deploy the apps. Closure management and containerization should also be considered by the engineers (Docker and Kubernetes).
Infrastructure as Code
Instead of managing each resource independently, infrastructure as code (IAC) allows you to control the infrastructure of resources programmatically by generating code configuration files. These resources could be distributed across a real server, a virtual machine, or the cloud. Each time it is compiled, an IaC defines the state of the machine and generates the same environment. Automation should be used as much as feasible in DevOps, which is where Infrastructure as Code comes in.
There are two types of IAC tools:-
- infrastructure provisioning
- configuration management
These two tools make it simple to clone and recover infrastructure. As a result, you should be aware of these tools in order to increase the efficiency of your work. IAC works with automation, versioning, and the elimination of manual errors.
Continuous Integration/Continuous Delivery (CI/CD) Pipelines
The developers’ integration of code into the main branch of a common repository is referred to as CI/CD. In DevOps, the code is regularly updated to meet the needs of the end-user, such as bug patches and new features, and then distributed to them in an automated manner. When new features and problem fixes are added, a pipeline runs on a CI (continuous integration) server, which should be launched automatically, and it looks like this:
- Runs the tests
- Packages the application
- Builds the Docker Image
- Pushes the Docker Image to an artifact repository and finally
- Deploys the new version to a server (that could be a DEVELOPMENT, TESTING, or PRODUCTION server)
Jenkins is one of the most popular, but you should also consider Bamboo, Gitlab, TeamCity, CircleCI, and TravisCI. learn here.
Programming Knowledge
Knowing a programming language is also a vital ability for DevOps engineers, whether they’re troubleshooting or merging database changes. As a DevOps engineer, you don’t need to be an expert in programming because that is the job of developers, but you will need to interact with them to better and automate processes, therefore you need know the basics, such as:
- how developers work
- which git workflow they are using
- how applications are configured
- automated testing
Networking & Security
It’s an important aspect of DevOps. As a DevOps engineer, you’ll also be responsible for networking and security. As a result, you’ll need to understand fundamental concepts such as IP addresses, DNS, routing, firewalls, and ports, as well as essential utilities like as ping, ssh, netstat, NCR, and IP, load balancing, and TLS encryption. We must also comprehend basic protocols (networking standard rules) such as TCP/IP (Transfer Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), SSL, SSH (Secure Shell), FTP (File Transfer Protocol), and DNS (Domain Name System) (Domain Name Server).
The tools Ansible and Jenkins can be used to configure and orchestrate network devices.
Cloud Providers and Services
Instead of managing their infrastructure, companies are now using virtual infrastructure on the cloud. Infrastructure as a Service (IaaS) platforms provide a variety of services such as backup, security, load balancing, and more. These are platform-specific servicesā¦ Cloud computing is complete virtualization in which computing resources are outsourced to the cloud and made available for use over the internet on a pay-as-you-go basis (i.e., you only pay for what you use). AWS, Google Cloud, and Microsoft Azure, to mention a few, are some of the most popular cloud providers, offering a variety of cloud services such as IaaS, PaaS, and SaaS.
Monitoring and Log Management
After the software has been launched, it is critical to monitor it in order to track its performance, identify faults, and provide a remedy. As a DevOps engineer, this is one of your tasks. It is critical to receive continuous feedback in order to provide clients with dependable service. As a result, continuous monitoring is critical. It’s critical to keep track of system activities and receive notifications in real time. Splunk, Nagios, and other monitoring technologies are employed. Previously, software updates were delivered by forcing a downtime, which caused the product’s performance to suffer, but this has since been remedied with new features. It is now possible to deploy an update without causing any downtime.
Version Control
Source control, version history, and VCS are all terms used to describe version control (Version Control Systems).
Any system or tool used to store and manage changes to projects over time is known as version control. When it comes to open source projects, Github is a popular version control service. GitHub keeps track of every change made to a project over time, noting when the changes were made, what type of modifications were made, and who made them.
Version control systems can also facilitate the creation of “branches” from the primary project, allowing modifications to be tested without affecting the original.
After these branches have been thoroughly tested and verified, they can be included into the main project.
Scripting Language
You’ll need to write scripts and tiny programs to automate tasks while working with developers and system administrators to automate development and operation chores. To do that, you’ll need to know a scripting and programming language.
It could be a scripting language particular to the operating system, such as bash or Powershell.
An OS-independent language like Python, Ruby, or Go, on the other hand, is in more demand. These languages are extremely powerful and adaptable. If you are aware of one of these, it can increase your value in the job market.
But an OS-independent language like python, Ruby, or Go is the most demanding in the market. These languages are very powerful and flexible.
DevOps Institute
If you are looking to build your career as DevOps engineer, then you can go with one of the best institute DevOpsSchool. It has trained 8000+ students so far. It is well recognized in IT industries and popular among students. Must visit if you are looking for a good institute.