A precheck validation is being designed for the network state in a CI/CD pipeline This design requires: instances must be used to validate changes. changes must be validated prior to a continuous depl

Using separate CI servers for each environment is inefficient and creates unnecessary operational overhead; a single CI system can manage multiple environments.

While possible, using entirely different pipelines for each environment can lead to duplication and makes it harder to maintain consistency; a single parameterized pipeline using environment-specific configurations is generally preferred.

Using separate Git repositories for each environment's code is overly complex; typically, the same application and infrastructure code reside in one repository, with environment-specific configurations managed separately within it.

Inventory files (common in configuration management tools like Ansible) define target hosts and environment-specific variables. By using distinct inventory files for each environment (e.g., dev, staging, production), a single pipeline can dynamically target the correct set of instances and apply environment-specific configurations during validation or deployment steps.