DevOps 的历史

您虽然在使用敏捷开发方法进行规划和开发，但在发布代码时仍会竭力避开一系列戏剧性事件。您可能已经听说过 DevOps 及其对团队的看似神奇的影响：Atlassian 对 500 名 DevOps 从业人员的一项调查表明，几乎所有 (99%) 的 DevOps 团队都坚信其投入生产的代码会取得成功¹。

然而，DevOps 不是魔法，无法在一夜之间完成变革。好消息是，您不必等待上级管理层推出大型计划。通过了解 DevOps 的价值并持续做出细微的改变，您的团队即可马上开启 DevOps 之旅。

DevOps touches every phase of the development and operations lifecycle. From planning and building to monitoring and iterating, DevOps brings together the skills, processes, and tools from every facet of an engineering and IT organization.

Agile methodologies help teams plan and produce by breaking work down into manageable tasks and milestones. Agile relies on sprints, backlogs, epics, and stories to assign work to skilled team members, adjust timelines when necessary, and deliver quality products and services to customers. Read more about agile.

Continuous integration and delivery: Continuous integration and delivery is a cornerstone of DevOps practices that relies on automating the merging and deployment of code. Traditional development methods require engineers to manually update changes in the codebase, with additional manual checks to ensure quality code is ready to ship into production. Deployments are scheduled with weeks- or months-long delays to remove the likelihood of bugs or incidents. DevOps practices remove these delays by automating the merging, testing, and deployment functions. High-performing teams use CI/CD to reduce their deployment frequency from every few months to multiple times each day. Read more about CI/CD.

Git repositories and workflows enable the automation and version control capabilities that are foundational to DevOps practices. Because Git is distributed, operations such as commit, blame, diff, merge, and log happen faster. Git also supports branching, merging, and rewriting repository history, which enables powerful workflows and tools. Read more about Git.

IT service management is the process IT teams use to manage the end-to-end delivery of IT services to customers. This includes all the processes and activities to design, create, deliver, and support IT services. The core concept of ITSM is the belief that IT should be delivered as a service, which goes beyond basic IT support. ITSM teams oversee all kinds of workplace technology, ranging from laptops, to servers, to business-critical software applications. Read more about ITSM.

Incident management teams respond to an unplanned event or service interruption and restore the service to its operational state. In a “you build it, you run it” model, developers partner with operations to reduce the likelihood of an incident occurring, and also reduce the mean time to recovery when an incident happens. Read more about incident management.

Organizations and teams continue to adopt DevOps practices and tools. In a survey of 500 DevOps practitioners, Atlassian found that 50% of organizations say they’ve been practicing DevOps for more than three years.

Unfortunately, despite agreement on the definition of DevOps and the benefits of implementing DevOps practices, organizations and teams still struggle to fulfill the promise of DevOps. Teams must focus on continuous feedback, iteration, and improvement to deploy better and faster to meet customers' needs.