The cultural movement, DevOps, has spread far and wide in the IT community and can no longer be confined to just Software Development.
DevOps has quickly become one of the hottest buzzwords in technology, but you might be wondering, "I don't get it - what is all the hype about?".
If you want to get to know DevOps a little bit better, this article will give you the answers to fourteen questions you might be afraid to ask about DevOps.
1. What Is DevOps?
DevOps (Development + Operations) is the combination of practices and tools designed to increase a business's ability to deliver services faster than traditional software development processes. As a result, organisations are able to better serve their customers and compete more effectively in the market.
In simple terms, DevOps removes the barriers between traditionally siloed teams, Development, and IT Operations. Under the DevOps model, Development and IT Operations work collaboratively across the entire software development lifecycle, from development and test, right through to operations and support.
2. Why Does DevOps Matter?
Software Development is all about coding, writing the code, implementing, testing, and re-writing the code. In contrast, IT Operations look after the systems that run the code, including how much processing power the software will need to run or how to make the software secure.
DevOps is needed to help these two teams work for the same system but operate with different thought processes. DevOps allows Development and Operations to work in a new way that facilitates complete cooperation with each other through standard methodologies and processes.
3. How Does The Business Benefit From DevOps?
Companies who incorporate DevOps practices will see the following benefits:
DevOps allows you to be able to deliver with maximum speed, functionality, and innovation.
DevOps helps you to improve customer service and customer satisfaction.
DevOps ensures that are good processes across IT and teams, including automation.
DevOps enables collaborative working and results in happier and more engaged teams.
4. Can Any Business Implement DevOps Strategies?
If your organisation develops applications or manages a large number of servers, then you would benefit from a DevOps approach.
Below are a few of the tech giants who are already benefiting from DevOps:
If you are a small start-up company that launches minimum viable products and tests new ideas, you'll probably be fine without DevOps practices.
5. Are Agile & DevOps The Same?
DevOps is a culture that allows Development and IT Operations teams to work together collaboratively, whereas Agile is a Software Development methodology that focuses on iterative and incremental releases of software.
6. Will There Be Friction Between Development & IT Operations?
There has always been a divide between Development and IT Operations. These teams have different objectives, and sometimes they can disagree when it comes to implementing important changes.
When using DevOps practices, there shouldn't be any friction between Development & IT Operations, but if there is - here's what you can do.
Development should be open and transparent when communicating with IT Operations, so they know about relevant constraints. It should be a symbiotic relationship. Development should be willing to back down on their demands, and IT Operations must be prepared to make the changes necessary to support new releases.
7. How Do You Measure Success In DevOps?
Do you want to know how you can measure success in a DevOps organisation? If you use these metrics, you can evaluate how fast you are making deployments before you start to break things:
Deployment Frequency - This is a direct and indirect measure of response time, your team's efficiency and capability, as well as evaluation of your DevOps tools' effectiveness.
Mean Time To Recover (MTTR) - This is a metric, which stands for time to recover from a given failure. MTTR measures both your team's capability and rate of failure.
Change Lead Time - This is the time elapsed from the first code sent to IT Operations to its deployment at the customer end. It defines the complexity of the code and the capabilities of your Developers.
Change Failure Rate - This is the rate of frequent deployments across multiple end-points on a daily basis to a benchmarked value.
8. How Do You Approach A Project That Needs To Implement DevOps?
Okay, let's see!
Here are three easy steps on how to approach a project that needs to implement DevOps:
Step 1: First, you need to conduct an assessment of the existing process and implementation in order to identify areas of improvement. This is done so that a roadmap for DevOps implementation can be created.
Step 2: Now, you will create a Proof of Concept, otherwise known as PoC. When the PoC has been accepted and approved, the DevOps implementation can begin, and you can roll out the project plan.
Step 3: Finally, the project is ready for DevOps implementation by using version control, integration, testing, deployment, delivery, and monitoring.
9. What Are The Different Phases In The DevOps Pipeline?
Plan - This phase covers everything that happens before your Developers start writing the code. This is where a plan for the type of application needs to be developed. A Product Roadmap can be created using requirements and feedback from both stakeholders and customers. This Product Roadmap will guide future development.
Code - After the Development Team have had their first coffee of the day and held the morning stand-up, the Development Team can work their magic. This phase is where the Development Team codes the application to meet end-user requirements.
Build - This phase is where DevOps really comes into play. When a member of the Development Team has finished a task, they will commit it to a shared code repository. Another member of the Development Team will then go on to review the changes; when they are satisfied, they will approve the pull request. This step is important, as it breaks any bugs early in the Development Lifecycle.
Test - This phase is where the build is deployed to the test environment for User Acceptance Testing (UAT). The build is tested in a way that the customer would use the application. This phase highlights any missed bugs or refinements that should be addressed before it is deployed to production.
Release - This phase is a huge milestone in the DevOps Pipeline. The build is now ready for deployment into the production environment. At this phase, each code change has passed both manual and automated tests. The Operations Team is reassured that the new changes will not affect the functioning of a high-traffic website and that issues and regressions are unlikely.
Operate - This phase starts as soon as the new release goes live and is being used by customers. The Operations Team ensures that everything is working as expected and is running smoothly. The business should have built a way for the customer to provide their feedback on the service. This Feedback Loop is incredibly important and will help shape the future development of a product.
Monitor - This final phase is used to closely monitor the performance of the environment. This phase builds on the customer feedback in the previous phase by collecting information and analytics on customer behavior, performance, and errors.
10. What Is Continuous Integration, Continuous Delivery & Continuous Deployment?
Continuous Integration or CI is the process where the Development Team frequently merges code changes into a central repository. In most organisations, Continuous Integration is done using tools for that purpose. It's really is as simple as using the right tools.
Continuous Delivery or CD is a little more complicated. Continuous Delivery is the extension of Continuous Integration, and it automatically deploys changes to either the testing or production environment once the build phase is complete.
Continuous Deployment, or CD (again), goes further than Continuous Delivery. With Continuous Deployment, every single change that passes through all stages of the production pipeline is released to customers. In Continuous Deployment, there no human intervention, and the only way a new change will be stopped from being deployed to the production environment is if a test has failed.
11. What Is The Role Of Configuration Management In DevOps?
Configuration Management enables the management of changes to multiple systems. It also standardizes resource configurations, which then manage IT infrastructure. Configuration Management can also help with the administration and management of multiple servers and maintain the integrity of the whole infrastructure.
12. Why Is Automated Testing Promoted In DevOps?
In Automated Testing, automation tools are used to automate test execution, the test scripts validate the software and it is completed in less time than it would take to conduct manual testing.
Automated Testing will allow you to:
✔️ Find more bugs compared to a human tester.
✔️ It is a quicker and more efficient process.
✔️ The process can be recorded, so you can reuse and execute the same testing operations.
✔️ It is conducted using software tools, so it works without fatigue, unlike humans.
✔️ It increases productivity and provides a fast and accurate result.
Although Automated Testing isn't perfect, it can be difficult to get insight into visual aspects of your User Interface, like colours, font sizes or button sizes. The other major problem is that test maintenance can be expensive.
13. How Can DevOps Increase System Security?
The following are some ways in which DevOps can increase system security in your organisation:
DevOps promotes communication between the Development Team and IT Operations, this in turn maximises everyone's visibility into the Software Lifecycle. This allows you to identify the vulnerabilities and security flaws before the code is released into the production environment.
DevOps increases task automation in development, which drives consistency, predictability, and results in fewer human errors which could impact security.
DevOps enables faster development and software delivery, which means that the Development Team is quicker at debugging and fixing security bugs.
DevOps favours Agile Development with Microservices and Containers, which help to isolate applications from external attacks or human errors. These technologies break applications down into smaller components, so it does not compromise the entire workflow or application.
14. Where Can I Become Certified In DevOps?
Everyone has a part to play in DevOps, it's not just about the following roles:
✔️ DevOps Evangelist
✔️ Automation Architect
✔️ Cloud Infrastructure Engineer
✔️ Software Developer
✔️ Software Tester
✔️ Security Engineer
✔️ Database Administrators
✔️ Product Owners
We'll teach you the fundamental DevOps values, practices and techniques is essential learning, as you move towards improved workflows and faster deployments.
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