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DevOps Intermediate

What is Microservices?

An architectural style where an application is composed of small, independent services that communicate over APIs.

Microservices break monolithic applications into small, focused services — each responsible for a single business function. Services can be developed, deployed, and scaled independently using different technologies.

Benefits include team autonomy, technology flexibility, and independent scaling. Challenges include distributed system complexity, data consistency, service discovery, and inter-service communication overhead.

Related Terms

GitOps
A practice where Git repositories serve as the single source of truth for both application code and infrastructure configuration.
Prometheus
An open-source monitoring and alerting toolkit that collects time-series metrics using a pull-based model.
Feature Flag
A technique that allows enabling or disabling features in production without deploying new code, enabling safe rollouts and A/B testing.
Ansible
An agentless automation tool for configuration management, application deployment, and task automation using YAML playbooks.
Trunk-Based Development
A source control strategy where developers integrate small changes directly into the main branch frequently, often multiple times per day.
Observability
The ability to understand a system's internal state from its external outputs through metrics, logs, and traces.
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