In GitOps, what does it mean to Continuously Reconcile?
Answer(s): C
Continuous reconciliation is another core GitOps principle. It means that software agents (operators or controllers) run loops that continuously observe the live system and compare it against the desired state declared in Git. If any divergence (drift) is found, the agent automatically reconciles the system to match the declared configuration."Software agents continuously observe the actual system state and compare it with the desired state declared in Git. If a divergence is detected, the agents automatically reconcile the difference to bring the system back into alignment."This provides automation, consistency, and self-healing, which are hallmarks of GitOps.
GitOps Principles (CNCF GitOps Working Group), Principle 4: Continuously reconciled.
How can you achieve the declarative GitOps principle in managing infrastructure and applications?
Answer(s): D
The first GitOps principle is Declarative Descriptions. This means the desired system configuration (for infrastructure, services, and applications) is expressed declaratively and stored in version control.Git becomes the single source of truth."The desired system state must be expressed declaratively. This provides a clear, machine-readable blueprint for the system, and ensures that what is in Git is what should be running in the environment."Therefore, infrastructure and application configurations must be defined declaratively and stored in Git, not managed imperatively or manually.
GitOps Principles (CNCF GitOps Working Group), Principle 1: The system is described declaratively.
In the context of GitOps, which of the following is the primary purpose of Desired State?
Answer(s): A
The Desired State in GitOps is the declarative specification of how the system should behave. It is stored in Git and serves as the reference point for reconciliation against the actual state."The desired state is a complete specification of the system stored in Git. It acts as the blueprint from which the actual state is continuously reconciled, ensuring the system remains consistent and reproducible."Thus, the primary purpose of Desired State is to act as a blueprint to recreate and ensure consistency of the system.
GitOps Terminology (CNCF GitOps Working Group).
Can you choose one example where Configuration as Code may be utilized to manage an application's configuration and source code?
Configuration as Code is a GitOps-related practice where configurations are stored as declarative definitions in version control. Helm charts, for example, allow applications deployed on Kubernetes to have both their container images and configuration specified declaratively."Configuration as Code enables teams to manage application and infrastructure configuration in version control systems, using declarative approaches such as Kubernetes manifests or Helm charts.This ensures repeatability, automation, and auditability."Thus, Helm charts are a prime example of this practice, making C correct.
GitOps Related Practices (CNCF GitOps Working Group), Configuration as Code.
Which of the following is part of a declaratively defined system?
In GitOps, systems are defined declaratively. This means that the desired state is described in Git, while the steps to achieve it are not explicitly defined. Instead, reconciliation agents interpret the declarative definition and automatically apply changes as needed."A declaratively defined system specifies only the desired state. It does not describe the sequence of steps required to reach that state. The reconciliation process ensures the system converges to the declared state automatically."Therefore, the correct answer is C: Only the Desired State.
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