The Roadmap to Becoming a DevOps Developer in 2021

 

Objective:

The purpose of DevOps roadmaps is to give you a fair suggestion about the steps and to guide to clear your confusion, about what exactly to learn at every step and not to motivate you to choose what is in fashion. If you are aware and you understand, how one tool would be more suitable for some instances than the other. Keep one thing in mind, something in trend is not necessarily the most a wanted thing or suitable for the job.

These roadmaps include the whole thing that is there to learn DevOps. Don't feel overloaded, you don't require to learn everything all together and of course, eventually you can horn your skills.

Roadmap:

The strategy is planned to achieve a particular goal to become a DevOps developer with the help of DevOps training online

Learning programming language and the Importance of coding in DevOps:

you can choose any programming language as per your interest. It hardly matters which programming language you choose, important is to obtain good programming knowledge for automation. Various programming languages are Python, Ruby, Node.js, Go, Rust, c, c++

Understanding different Operating system concepts:

As a DevOps developer, you should be able to do the coding that can work together with the machine resources and have an excellent knowledge of the underlying Operating system. Knowing the OS will help you a better dynamic programmer. 

This makes you capable enough to make your code swifter, helps in managing processes. Interaction with the input-output devices, communication with the other OS, optimization in the processing usage, memory use, and disk usage management of your program becomes easier.

Key OS concepts a DevOps engineer need to know:

• Kernel management
• Memory Management
• Device driver's management
• Resource management
• I/O management
• Processes and process management
• Threads and concurrency
• Virtualization and containerization
• Distributed file systems
• Filesystem architecture

Learn about managing servers:

DevOps the approach has made cloud deployments more useful, group of Servers like (Application, Database, Web Server, Storage, Infrastructure, Networking Server, and so on) is required rather than single servers. without modifying the configuration files You should be able to handle the servers with dynamism

A webserver that can also be used as a reverse proxy, load balancer, mail proxy, and HTTP cache is Nginx which gives tough and customizable monitoring of cloud instances and update their status. Nginx extends more flexibility and reconfigurability for superior configuration and automation make use of tools like Puppet and Chef

Networking and Security:

In a highly connected network of computers, it becomes essential to understand the basic concepts of networking. you are supposed to know enforcement of security and identifying problems. DevOps engineer should know how to test networking functions. Understand the fundamental networking concepts like routing, firewalls, and ports, Ip addresses, DNS.   Also, you should be aware of simple utilities like ping, ssh, netstat, NCR and IP, load balancing, and TLS encryption.

Learn the basic protocols(standard rules for networking) such as- HTTP (Hypertext Transfer Protocol), TCP/IP (Transfer Control Protocol/Internet Protocol), FTP (File Transfer Protocol),  SSL, SSH (Secure Shell), DNS (Domain Name Server). Network devices can be configured using tools like Jenkins.

What is and how-to set-up:

In DevOps course methodology we often use CI/CD pipeline, let us understand it.

Continuous Integration (CI) ­­developers frequently merge or incorporate their code modifications into a common repos­itory very regularly.

Every single minor change in code change done on numerous branches (from distinct contributors) is pressed and integrated with the main release branch many times a day, instead of waiting for the entire feature to be established or developed. an automated build and automated test cases verify every single code This approach helps in detecting and fixing the bugs early, resolving the conflicts as soon as they arise, enhance software quality, lessen the validation and feedback time; hence accelerating the product releases and improving overall product quality.

Continuous Delivery (CD) is a software procedure where every code check-in is built, tested, and ready for a release(delivery) to production automatically or by default. Every code check-in should be ready for deployment or release.  when continuous delivery is successfully implemented in the prod-like environment, the code is all set to be deployed to the key production server.

It is ultimate to study the DevOps lifecycle of continuous development, continuous build, continuous testing, continuous integration, continuous deployment, and continuous monitoring all through the entire product lifecycle. Analyzing the DevOps process setup makes use of the appropriate tools to enable the CI/CD pipeline.

Study Infrastructure as code:

Infrastructure as code means to characterize and handle the infrastructure resources (hardware and software) programmatically by writing code as configuration files so that management of each resource is not required individually. A physical server, A virtual machine, or cloud may be used for setting up infrastructure resources

IEC specifies the required state of the machine and creates the same environment every single time it is compiled.

What does IaC do?

Automation: Twisting up or scrambling down many resources becomes easier, as just compilation n running of a configuration file is required.  This drastically decreases the overhead and the period.

Versioning:  IaC is a text file which can be versioned controlled which means Infrastructure changes can be traced with the versioned history.

Configuration files can be shared easily and can be checked in as source code. An IaC text file can simply be planned to be run in a CI/CD pipeline for management of the server and. Also, by Manual errors, elimination productivity is increased

How will IaC be applied in DevOps?

CI/CD pipelines can be build using the lac configuration files. IaC descriptions facilitate DevOps teams to test applications/software quickly and effortlessly. Runtime issues can be reduced due to misconfiguration.

Study some Continuous Integration and Delivery (CI/CD) tools

For continuous development, integration, building, testing, and applying feedback, delivering our product characteristics to the production environment or deployment to the customer site, an automated sequence of processes is required to be executed using suitable tools.

CI/CD the pipeline needs custom code and working with multiple software packages at the same time or concurrently.

As a DevOps Engineer, here are some commonly used tools you must be aware of

Jenkins, GitLab CI, CircleCI, Microsoft VSTS, CodeShip, Bamboo, Bit bucket.

Out of all these Jenkins is the most common and highly used tool with several adaptable plugins that integrate with nearly any CI/CD toolchain. Also, the capability of Jenkins to automate any project differentiates this tool from others, thus it is highly advised to get a nice grip of this tool as a DevOps practitioner

Know the tools to monitor software and infrastructure: It is essential to constantly watch the software and infrastructure upon establishing up the continuous integration and continuous delivery pipeline (CI/CD) to know how well the DevOps setup is working.  It is also important to monitor system actions and get notifications in real-time.

DevOps Engineer must be friendly with monitoring tools such as  Nagios and Prometheus

Study about Cloud Providers

As the computational need increases so does the demand of the infrastructure resources. Cloud computing is a higher level of virtualization, wherein the computing resources are outsourced on a "cloud" and available for use on a pay-as-you-go basis over the internet. Some of the leading cloud providers such as AWS, Google Cloud, Microsoft Azure to name a few provide varied cloud services like IaaS, PaaS, and SaaS.

Being a DevOps practitioner, you will frequently find the necessity to access various cloud services. As computational demands are increasing so of course infrastructure resources are required. Cloud computing is an advanced level of virtualization, wherein the resources are outsourced on a "cloud" and obtainable for use on a pay-as-you-go basis over the internet.

Some of the cloud providers are AWS (Amazon Web Services), Microsoft Azure, Microsoft Azure, Google Cloud Platform:

Eligibility to become a DevOps developer or engineer:

You are prepared to become a DevOps Engineer if you have the below-given understanding and/expertise

• You have done a bachelor's or master's preferably in a technical stream like a computer, Information technology, or with PCM education, or you belong to an engineering background
• Least 2 years of IT experience with a good knowledge of SDLC lifecycle with lean agile methodology
• Excellent understanding of Linux/Unix & Windows Administration
• One who has a good grip over functional programming language such as Shell scripting / Groovy /Python / Ruby / Java / Perl / or Go
• Shell scripting and automation, remote execution of scripts along with System-level insight of Linux (Ubuntu, SUSE, Linux RedHat, CentOS,) Unix (Solaris, Mac OS), and Windows Servers
• Database management skills in MySQL database, Mongo/Oracle along   with Strong scripting in SQL and PL/SQL
• The one who have good hands-on experience in source code version control management
• Work Experience in cloud architectures, especially in Amazon Web Services (AWS) or Microsoft Azure or Google cloud platform
• Decent knowledge of containerization applying Kubernetes and/or Dockers
• The one who is well Experienced in CI/CD pipelines applying Jenkins and GitLab
• Experts in monitoring, networking & security, data-center management, systems management
• Involvement and experience in configuration management /Automation using Ansible/Puppet /Chef or all three
• Proficient enough to monitor your code using Configuration Monitoring tools such as Nagios or Prometheus
• Excellent Infrastructure and Networking background
• A strong solid grip on core Internet protocols (e.g. TCP/IP, DNS, SMTP, HTTP, and distributed networks) and networking
• Proficiency in verbal English and written communication skills
• Quick -learner, good team player, eagerness to learn new technologies, and capability to solve issues individually and produce solutions.

Conclusion:

As a DevOps Engineer, you must be a determined team player, should have a desire to learn and grow, optimize the process and resources to find better solutions, and go for the DevOps course.

Since DevOps contains a vast area under its canopy, it is required to focus on your important skills and study the tools and technologies needed.

Identify the challenge and then find a DevOps solution.

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