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DevOps Intermediate

What is Configuration Management?

The practice of systematically managing and maintaining consistent server configurations across infrastructure.

Configuration management ensures all servers in an environment are configured identically and consistently. Tools automate installing packages, managing files, setting up services, and applying security policies across hundreds of servers.

Popular tools include Ansible (agentless, YAML playbooks), Puppet (agent-based, declarative), Chef (agent-based, Ruby DSL), and Salt (fast, Python-based). These tools are idempotent — running the same configuration twice produces the same result.

Related Terms

Container Orchestration
The automated management of containerized applications including deployment, scaling, networking, and health monitoring across clusters.
Log Aggregation
The process of collecting, centralizing, and indexing log data from multiple sources for unified search and analysis.
Service Mesh
An infrastructure layer that handles service-to-service communication, providing load balancing, encryption, and observability.
Docker Compose
A tool for defining and running multi-container Docker applications using a YAML configuration file.
Message Queue
A communication mechanism that enables asynchronous message passing between services, decoupling producers from consumers.
Artifact Repository
A centralized storage system for build artifacts like compiled binaries, packages, and container images used in CI/CD pipelines.
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