- 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
An environment refers to the combination of hardware and software where an application or system runs. Environments are usually categorized into stages like development, testing, staging, and production, each with its unique configuration, purpose, and constraints. Development environments are optimized for coding and debugging, while production environments are tuned for performance, scalability, and security. Environment management ensures consistency, isolation, and control, enabling parallel workstreams, quality assurance, and smooth transitions between stages. Tools like Vagrant, Terraform, and VMware support environment provisioning, automation, and virtualization, facilitating efficient and reliable lifecycle management.
Parallel Development and Testing Workflows
- Objective: To enable multiple teams or individuals to work on various features, fixes, or modules concurrently without affecting each other.
- Scope: Utilize tools like Vagrant or Terraform to provision isolated development and testing environments that mimic the production system.
- Advantage: Ensures that parallel workstreams do not interfere with each other, allowing for more efficient utilization of resources and faster development cycles.
Automated Regression Testing
- Objective: To conduct comprehensive testing of an application’s existing functionalities whenever new code is integrated.
- Scope: Leverage an automated testing environment closely mirroring the production setup to run regression tests whenever code changes are made.
- Advantage: Facilitates early detection of any functionalities broken due to new commits, enabling rapid remediation.
Staging and Pre-Production Validation
- Objective: To validate the complete functionality, performance, and security of an application before it is moved to production.
- Scope: Use a staging environment that is a near-identical replica of the production environment for end-to-end testing and validation.
- Advantage: Helps in identifying and fixing issues that might be missed in development and testing environments but could be critical in production.
- Objective: To minimize downtime and risk by having two identical production environments.
- Scope: Implement a blue-green deployment strategy, where one environment (e.g., “”Blue””) is live, and the other (e.g., “”Green””) is used for deploying and testing the new release.
- Advantage: Allows for instant rollback in case of issues with the new release and enables more controlled and safe deployment processes.
Disaster Recovery and Business Continuity
- Objective: To ensure that critical systems can be quickly restored following a disaster or major failure.
- Scope: Establish a separate, geographically distant disaster recovery environment using virtualization tools like VMware, with automated scripts for quick provisioning.
- Advantage: Provides a robust mechanism for recovering critical systems and data, ensuring business continuity in adverse situations.