- A/B Testing
- Blue/Green Deployment
- Canary Release
- Chaos Engineering
- Code Review
- Configuration Management
- Continuous Testing
- DevOps Culture
- Feedback Loop
- Immutable Infrastructure
- Infrastructure as Code (IaC)
- Infrastructure Monitoring
- Post-Mortem Analysis
- Repository (Repo)
- Shift Left
- Smoke Testing
- Source Code Management (SCM)
- Version Control
- Virtual Machine
Configuration Management deals with systematically handling changes in a system to maintain its integrity, consistency, and reliability. This includes tracking configurations, dependencies, versions, and environments, applying changes in a controlled manner, and ensuring alignment with defined policies and standards. Configuration Management enables repeatability, traceability, and auditability, reducing risks and supporting compliance and governance. Tools like Puppet, Chef, and Ansible provide Configuration Management capabilities, integrating with version control, automation, and monitoring to enable robust, agile, and transparent system management.
Automated Environment Provisioning
- Objective: To create identical, repeatable server environments automatically.
- Scope: Utilize configuration management tools to script and automate the provisioning of server instances with specific software, configurations, and permissions.
- Advantage: Guarantees that all instances, whether in development, testing, or production, are consistent, reducing “”works on my machine”” issues.
Patch Management and System Updates
- Objective: To maintain system security and reliability by automating the application of patches and updates.
- Scope: Leverage configuration management capabilities to distribute and install patches, service packs, or upgrades across multiple servers or clusters.
- Advantage: Ensures that all systems are up-to-date with the latest security patches, reducing vulnerability to attacks and ensuring compliance.
Rollback and Version Control for Configurations
- Objective: To manage and restore system configurations efficiently in case of configuration errors or system failures.
- Scope: Use configuration management tools to version-control configuration files and settings, enabling easy rollback to previous states.
- Advantage: Provides a safety net for configuration changes, allowing quick restoration to a known good state and thereby reducing system downtime.
Compliance Auditing and Reporting
- Objective: To automatically enforce and validate compliance with regulatory standards and internal policies.
- Scope: Implement configuration policies that align with compliance requirements, and use configuration management tools to audit and report on the current configuration state.
- Advantage: Facilitates compliance with legal and internal governance requirements, and enables quick generation of audit reports.
Configuration Drift Monitoring and Resolution
- Objective: To identify and correct deviations from the desired system configuration.
- Scope: Continuously monitor system configurations using configuration management tools, alerting administrators to any unauthorized or unintentional changes.
- Advantage: Maintains system integrity by ensuring that configurations remain aligned with the predefined standards, thereby reducing risks and enhancing reliability.
- GitHub – ansible/ansible: Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy and maintain. Automate everything from code deployment to network configuration to cloud management, in a language that approaches plain English, using SSH, with no agents to install on remote systems.
- The Importance of Ansible and Configuration Management Systems | LinkedIn Pulse
- Configuration Management System Software – Chef Infra
- Configuration management – Wikipedia