SRE and DevOps are complementary approaches to software delivery and operations, with SRE often being considered a specific implementation of DevOps principles.
DevOps
A more prescriptive approach developed by Google that uses software engineering principles to solve operations problems
SRE supports resiliency, redundancy and reliability in the DevOps cycle and deals with the day-to-day implementation of software programs
Shared responsibility, but more focused on operations and reliability.
Key principles include Service level objectives (SLOs), error budgets, automation, and incident management.
Focus Area : Reliability, scalability, operations, and automation.
SRE
A cultural and philosophical approach that emphasizes collaboration between development and operations teams
Focuses on breaking down silos between teams and automating the software delivery process
Shared responsibility between development and operations
Key principles include continuous integration/deployment, infrastructure as code
Focus Area : Development, IT operations, continuous integration, continuous delivery.
Common ground of SRE & DevOps:
- Both aim to improve system reliability and efficiency
- Both emphasize automation and reducing manual operations
- Both focus on measuring and improving system performance
- Both promote a culture of continuous improvement
