Brief Summary
This video explains the DevOps approach, which bridges the gap between software development and operations teams to improve efficiency and speed up the software development cycle. It describes the traditional separation of development and operations, the problems it caused, and how DevOps addresses these issues through collaboration and automation. The video also outlines the different phases of the DevOps lifecycle, the tools used in each phase, and provides a real-world example of Netflix's implementation of DevOps.
- DevOps promotes collaboration between development and operations teams.
- The DevOps lifecycle includes planning, coding, building, testing, deployment, monitoring, and integration.
- Tools like Git, Maven, Selenium, Ansible, Docker, Kubernetes, Nagios, and Jenkins are used in different phases of the DevOps lifecycle.
Traditionally, software development involved separate development and operations teams. The development team was responsible for planning, designing, and building the system, while the operations team handled testing and implementation. This separation often led to delays, as the development team waited for feedback from the operations team, extending timelines and slowing down the entire software development cycle. Sometimes, the development team would move on to new projects while the operations team was still providing feedback on the previous code, causing further delays in project completion.
The DevOps approach brings the development and operations teams together to work in collaboration, breaking down the "wall of confusion." The DevOps symbol, resembling an infinity sign, represents a continuous process of improving efficiency and constant activity. This approach enables companies to adapt faster to updates and development changes, delivering quickly with more consistent and smooth deployments. While communication challenges may arise, DevOps streamlines the flow between teams, making the software development process more successful.
The DevOps culture is implemented in several phases with the help of various tools. The first phase is planning, where the development team creates a plan based on the application objectives. Next, the coding phase involves the development team working on the same code, with different versions stored in a repository using version control tools like Git and merged when necessary. The code is then made executable in the build stage using tools like Maven and Gradle. After a successful build, the code undergoes testing for bugs and errors, with Selenium being a popular tool for automation testing. Once the code passes manual and automated tests, it is ready for deployment by the operations team. Tools like Ansible, Docker, and Kubernetes are used to automate these phases. After deployment, the product is continuously monitored, with Nagios being a top tool for automating this phase. The feedback received is then sent back to the planning phase, forming the core of the DevOps lifecycle, which includes an integration phase. Jenkins is used to send the code for building and testing, and if the code passes the tests, it is sent for deployment, a process known as continuous integration.
Many tech giants and organizations have adopted the DevOps approach, including Amazon, Netflix, Walmart, Facebook, and Adobe. Netflix, which introduced its online streaming service in 2007, estimated in 2014 that an hour of downtime would cost them $200,000. To address such issues, Netflix implemented DevOps effectively by developing a tool called the Simeon Army. This tool continuously created bugs in the environment without affecting users, motivating developers to build a resilient system that could withstand such incidents.
More and more companies are leaning towards automation to reduce delivery time and bridge the gap between their development and operations teams. DevOps serves as the gateway to achieving these goals.
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Transcript
Full transcript of “DevOps In 5 Minutes | What Is DevOps?| DevOps Explained | DevOps Tutorial For Beginners |Simplilearn”. Click a timestamp to open the video at that moment. Need another video? Use the YouTube transcript generator.
0:00 Right from the start, software development comprise two different departments. The development team that develops the plan, designs and builds the system from scratch and the operation team for testing and implementation of whatever is developed. The operations team gave the development team feedback on any bugs that needed fixing and any rework required. Invariably, the development team would be idle awaiting feedback from the operations team. This undoubtedly extended timelines and delayed the entire software development cycle. There would be instances where the development team moves on to the next project while the operations team continues to provide feedback for the previous code. This meant weeks or even months for the project to be closed and final code to be developed. Now what if the two
0:46 departments came together and worked in collaboration with each other? What if the wall of confusion was broken? And this is called the DevOps approach. The DevOps symbol resembles an infinity sign suggesting that it is a continuous process of improving efficiency and constant activity. The DevOps approach makes companies adapt faster to updates and development changes. The teams can now deliver quickly and the deployments are more consistent and smooth. Though there may be communication challenges DevOps manages a streamlined flow between the teams and makes the software development process successful. The DevOps culture is implemented in several phases with the help of several tools. Let's have a look at these phases. The first phase is the planning phase where
1:33 the development team puts down a plan keeping in mind the application objectives that are to be delivered to the customer. Once the plan is made, the coding begins. The development team works on the same code and different versions of the code are stored into a repository with the help of tools like git and merged when required. This process is called version control. The code is then made executable with tools like Maven and Gradel in the build stage. After the code is successfully built, it is then tested for any bugs or errors. The most popular tool for automation testing is Selenium. Once the code has passed several manual and automated tests, we can say that it is ready for deployment and is sent to the operations team. The operations team now deploys the code to the working
2:18 environment. The most prominent tools used to automate these phases are Anible, Docker and Kubernetes. After the deployment, the product is continuously monitored and Nagios is one of the top tools used to automate this phase. The feedback received after this phase is sent back to the planning phase and this is what forms the core of the DevOps life cycle that is the integration phase. Jenkins is the tool that sends the code for building and testing. If the code passes the test, it is sent for deployment and this is referred to as continuous integration. There are many tech giants and organizations that have opted for the DevOps approach. For example Amazon Netflix Walmart Facebook, and Adobe. Netflix introduced its online streaming service in 2007. In
3:06 2014, it was estimated that a downtime for about an hour would cost Netflix $200,000. However, now Netflix can cope with such issues. They opted for DevOps in the most fantastic way. Netflix developed a tool called the Simeon Army that continuously created bugs in the environment without affecting the users. This chaos motivated the developers to build a system that does not fall apart when any such thing happens. So, on this note, here is a quiz for you. Match the DevOps tool with the phase it is used in. A B, [Music]
3:52 C, D, none of the above. Today, more and more companies lean towards automation with the aim of reducing its delivery time and the gap between its development and operations teams. To attain all of these, there's just one gateway, DevOps. If you enjoyed this video, if you did, a thumbs up would be really appreciated. Here's your reminder to subscribe to our channel and to click on the bell icon for more on the latest technologies and trends. Thank you for watching and stay tuned for more from SimplyLearn.
