Introduction
With the incorporation of software in almost every industry and the huge dependency on programming and computer science, it was just a matter of time before a new discipline was introduced. According to Ben Treynor Sloss, who is Google’s engineering vice president, “A site reliability engineer is a software engineer who is responsible for developing an operations function”. Site reliability engineering (SRE) uses the versatility of software to handle regular IT operations such as server management and other computer operations by establishing reliable software systems. SRE task forces usually utilize and develop software to handle project issues and problems, increase project autonomy and manage the entire project’s process with minimum manual intervention and manpower. Despite being a commonly used term in classifying work teams, the majority of the people working in both software and project management industries are still not fully aware of the underlying concept behind site reliability engineering. This article is an attempt to clarify what does an SRE do, how is an SRE important to business and projects, how are SRE teams different from DevOps and what kind of tools and technologies that an SRE utilize.
What does a site reliability engineer do?
SRE work can be divided into two main tasks. About half the time is spent on developing and programming new features, increasing system autonomy and project scaling. The rest of the time is spent on operations related work including tasks that require personal intervention and on-call duties. So an SRE should have a balanced mix of system administration skills and software programming, automation and engineering. Among the duties of an SRE is the code deployment, configuration and monitoring in addition to responding to emergencies and managing production service capacities.
How important are site reliability engineers?
SRE makes the project management process of large projects easier by developing complicated codes and algorithms that handle most of the regular and daily tasks. The software developed can be expanded to administer a huge spectrum of machinery and equipment within a company. As I mentioned earlier, SRE’s work can be divided into two main sections, standardization and automation. It is the goal of an SRE to improve a system’s reliability and features while automating operations tasks. The unique role of an SRE requires programming skills and operations management experience. SRE teams are particularly important for startups. Due to its small scale and inability to hire large groups of developers at large scale, having SRE teams would be extremely beneficial for the startup. After understanding how important are SRE teams to a company and what kind of work do they handle, we now need to discuss how do SRE teams work within a development team.
How different are DevOps from site reliability engineers?
Site reliability engineering implements the idea of DevOps at its core. But what are DevOps? DevOps simply denotes development and operations, where developers are responsible for writing codes, which are then passed on to the operations team for installation and support. However, due to the separation between both teams, developers were not responsible for how the software or features would be used, leaving the operations team in a bad position. This led to problems because the goal of the developers is to keep introducing new features for the customers with new pieces of code, whereas the operations teams are seeking a steady system with stable and steady changes. However, by combining both teams and helping them understand each other’s duties and responsibilities, introducing new features will not only be based on developing the code for the feature itself but also on the consequences and fallout this new introduction might lead to. DevOps and site reliability engineering are often confused because of their similarity in many aspects and properties. Both DevOps and SRE seek high quality and fast services delivery as well as life cycle development, by optimizing business value and responsiveness through automation, platform operation enhancement and integrating both development and operations teams. Now, let us see how is SRE different from DevOps. First of all, SRE teams take to their own hands the duty to eliminate communication and workflow issues. SRE teams’ main goal is to achieve site reliability while adding novel ideas and features, whereas DevOps are mainly concerned with efficient development of operation using platforms such as Kubernetes and microservices. Unlike DevOps, SRE teams split their working time between operations and development tasks such as systems scaling and automation implementation, which is a crucial aspect in the site reliability engineer’s role. A key component for SRE teams is to achieve that balance between both operations and development work.
What kind of technology supports a site reliability engineer?
In order to determine the type and time of features to be launched, SRE teams use Service Level Agreements (SLAs), which are used to determine the necessary system reliability depending on Service Level Indicators (SLIs) such as availabilities, rate of error, requested latency and systems throughput, and Service Level Objectives (SLOs), which are based on specified goal values and budget error. Due to the fact that an integral aspect of SRE’s work is automation, unified software containers usually provide teams with a common development environment facilitating work integration, automation and delivery.
Conclusion
Incorporating site reliability engineers can be handful especially for startups. They can assist developers by solving some of their general issues, hence providing them with more time to handle programming specific issues. They can also improve the capabilities of the tools used by developers to help them become more productive. In addition, the customer will be provided with a product that has high reliability and security. It is important to mention that finding an SRE to join the team is not quite simple due to the fact that they are looking for a person who are able to multitask and handle both operations and software engineering at a high level. It is always a pleasure to answer all your questions and see you in the next one.
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