What is DevOps?
DevOps is a set of practices combining software development (Dev) and IT operations (Ops) to streamline development and enable continuous delivery of high-quality software.
DevOps improves software development pipelines by automating manual processes, making it easier to get code from development into production quickly while maintaining quality. Tools like version control for source code management are part of DevOps, but its single most important component is cultural, not technical.
DevOps requires close collaboration between development and operations teams and a willingness to experiment and learn from mistakes. DevOps methodologies are growing in popularity, particularly in industries where moving quickly is essential to staying competitive.
How does DevOps work?
DevOps streamlines development by making key areas of the pipeline more efficient. Feedback loops monitor application performance and flag areas for improvement, while technologies like error tracking software and build deployment tools automate repetitive development tasks, freeing developers to focus on coding new features instead.
Getting the best results from DevOps still requires close, lockstep collaboration between teams working toward the same goal, automation alone isn't enough without it.
What are the principles of DevOps?
- Communication and collaboration: Tools like Slack or Jira help teams share information efficiently, whether onsite or remote, and integrating them with your existing DevOps stack keeps everyone visible on project status.
- Automation: Tools like Unity Build Automation handle CI/CD, while Puppet or Chef handle provisioning and configuration management.
- Feedback: Crucial for identifying improvement areas quickly, whether through code review, user testing, or automated parts of the process.
- Shared responsibility: Development and operations both own the full application lifecycle; siloed teams create miscommunication and inefficiency.
What problems does DevOps solve?
Implementing DevOps helps teams and resources align for better collaboration, solving many software development issues and improving the end-user experience.
At its core, DevOps enables teams to make changes quickly through rapid iteration and testing while reducing inefficiencies in existing workflows. A CI/CD workflow specifically helps teams roll out new features more often and respond to customer feedback faster.
Aligned teams collaborate more efficiently, leading to more stable, frequent, higher-caliber releases, and a steady stream of solid releases builds consistent customer value that helps a business grow.
What are the benefits of using DevOps?
- Faster goal achievement: Teams move with greater agility once collaboration is working well.
- Higher-quality, more stable releases: Working closely together consistently improves release quality.
- Better morale: Teams that collaborate closely on quality releases tend to feel more invested in the work.
What are the challenges of using DevOps?
- A real cultural shift: Teams used to siloed, independent operations now need to actively collaborate using new tools and practices.
- New workflow friction: Development and operations teams must actively work together to build a seamless process as it doesn't happen automatically just by adopting new tools.
What is the DevOps workflow?
1. Plan: Lay out overall goals, how they'll be achieved, implementation timelines, and who's responsible for what, then identify and implement the tools and processes needed, which might include a CI/CD delivery pipeline or a monitoring system.
2. Develop: Write and test code frequently to keep it stable; once it's ready and meets the target user base's requirements, hand it to the operations team for deployment.
3. Merge: Integrate changes from different sources into one codebase, either manually with a merge command in a version control system like Unity Version Control, or automatically via a CI system, to create a single, consistent view of the codebase.
4. Build: In the build stage of the DevOps lifecycle, code is compiled and packaged for distribution, often automated with tools like Jenkins or Unity Build Automation, which help keep builds reproducible and issues easy to trace.
5. Test and stage: Test code both automatically and manually to confirm it's stable and production-ready, all in a staging environment with no risk to live code or applications. Automated testing speeds up the process and keeps it consistent; manual testing catches what automation misses.
6. Deploy: Deploy tested code to production, frequently, as part of continuous deployment (CD), which surfaces and resolves code errors within minutes or hours rather than days.
Frequently asked questions (FAQ)
Is DevOps a job title or a set of practices?
Both, in practice. DevOps is fundamentally a culture and set of practices, but many companies also hire dedicated "DevOps engineers" to help build and maintain the automation and tooling that supports it. Having the role doesn't replace the need for the wider team to actually adopt the culture.
Do small teams need DevOps?
Not the full formal structure, but the underlying principles still help. Even a small team benefits from automating repetitive tasks and keeping development and deployment closely connected. It's the scale of tooling and process that usually grows with team size, not the value of the practices themselves.