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The 2021 DevOps RoadMap is the image attached to this idea, check it out!
In the RoadMap we will find the step by step of how to become a DevOps guru in 2021 through learning the listed essential skills.
DevOps now requires developers to know about OS and hardware.
You also need to know about process management, threads and Concurrency, Sockets, I/O Management, Virtualization, memory storage and file systems as suggested in roadmap.
For a DevOps, it's important to have good command in the command line. Knowing some Linux shell like Bash or Ksh and tools like find, grep, awk, sed, lsof, and networking commands like nslookup and netstat is mandatory.
Gone are the days of isolation, in today’s world, everything is connected to everything which makes networking and security very important.
In order to become a good DevOps engineer, you must know about basic networking and security concepts like DNS, OSI Model, HTTP, HTTPS, FTP, SSL, TLS, etc.
As a DevOps champion, you should know what is set up in your machine and how you can set that up, only that you can think about automating it.
He should also know about Caching Server, Load balancer, Reverse Proxy, and Firewall, etc.
This is probably the most important thing for a DevOps engineer and this is a very vast area as well.
As a DevOps engineer, you should know about containers like Docker and Kubernetes, Configuration management tools like Ansible, Chef, Salt, and Puppet, Infrastructure Provisionings like Terraform and Cloud formation.
This is another very important thing for DevOps gurus and champion, i.e. to set up a pipeline for continuous integration and delivery. There are a lot of tools in the CI/CD area e.g. Jenkins, TeamCity, Drone etc.
I strongly recommend learning at least Jenkins, as it’s the most widely used and probably the most mature CI/CD tool in the market.
Apart from setup and deployment, monitoring is another important aspect of DevOps and that’s why it’s important for a DevOps engineer to learn about Infrastructure and application monitoring.
There are a lot of tools in this space e.g. Nagios, Icing, Datadog, Zabbix, Monit, AppDynanic, New Relic etc.
You can choose some of them depending on which one is used in your company like AppDynamic and Nagios.
Cloud is the next big thing and sooner or later you have to move your application to the cloud, hence it’s important for a DevOps engineer to at least know about some of the popular Cloud Providers and their basics.
While AWS is clearly the leader in the cloud it’s not alone, Google Cloud and Azure are slowly catching up and then we have some other players like Heroku, Cloud Foundry, and Digital Ocean.
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