Introduction to DevOps:
DevOps is not a tool but a methodology to bridge the gap between development and Operations teams who have traditionally practiced working separately and can now work together through collaboration and automation.
An organization can increase its ability to develop high-quality applications and deliver them much faster with fewer risks and errors by taking advantage of various tools and implementing a set of DevOps practices.
It helps us automate the software development process and update our complex applications with shorter release cycles.
DevOps Lifecycle - AKA continuous Integration and Continous Delivery Pipeline. In this pipeline flow, as soon as our code is updated with new changes, it is automatically built, tested, packaged, and deployed to various environments like Dev, QA, and Prod.
What is Automation:
Automation is the process of using software and tools to perform tasks that are traditionally done manually.
Automation is a crucial aspect of DevOps. It involves using tools and software to automate various stages of the software development lifecycle, including testing, building, deploying, and monitoring.
By automating these processes, DevOps teams can streamline their workflows, reduce the risk of human error, and free up time for more strategic tasks.
With the most popular CI/CD, developers can integrate their code changes into a shared repository and have it tested automatically. This process ensures that any errors or bugs are caught early in the development cycle, reducing the likelihood of delays or issues when it comes time to deploy the code.
Tools used for automation in DevOps - Git, Jenkins, Ansible, Docker, Terraform, Puppet, Chef, etc.
Scaling:
Scaling is to increase and decrease the capacity of a system, process, or organization to handle increasing or decreasing workloads or demands.
Example - When we host our website, we do not see a stable number of requests all the time. There will be times when we get high traffic and at times it can be as low as nothing.
In the context of software development and operations, scaling is a critical consideration for DevOps teams. As software applications grow and attract more users, teams need to ensure that they can handle the increased traffic and workload. This may involve scaling up infrastructure by adding more servers or scaling out infrastructure by distributing workloads across multiple systems.
There are 2 types of scaling-
Vertical Scaling - Where we increase the capacity of a single system or resource, such as increasing the processing power or memory of a server.
Horizontal Scaling - Where we increase the number of resources to a distributed system, such as adding more servers to a load-balanced cluster.
Vertical and Horizontal Scaling
Infrastructure:
It is the building block of our software development lifecycle, which is the hardware and software resources used during the process.
It can include physical and virtual servers, storage devices, network devices, and various software tools and platforms.
In the DevOps world, we are removing the manual effort and using Infrastructure as a code where we define and configure our resources and deploy them with just one click. We can reuse the same template n times to deploy n number of resources. This enables teams to automate the provisioning, configuration, and management of infrastructure, ensuring that it is consistent and repeatable.
Why DevOps is Important:
DevOps is an emerging methodology that focuses on improving collaboration and visibility between software developers and IT operations teams.
It’s a strategy that aims to accelerate software development cycles, improve IT team efficiency, and drive business value by focusing on fast app deployment, continuous integration, and continuous delivery of software.
Thank you for reading! 📘