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• Kubernetes' API server is the source of truth for external tools, clients, and internal components
• Kubernetes' declarative model transfers the responsibility of reconciling intended and actual state from the user to the cluster
• Kubernetes resource model (KRM) is a data model or schema used to define the intended state of Kubernetes resources
• Cloud resources can be managed using first-party cloud controllers or third-party open-source tools
• AWS Controllers for Kubernetes (ACK) and Google Cloud Config Connector are examples of cloud controllers
• AWS S3 controller can be installed onto a Kubernetes cluster using Helm and used to manage S3 buckets
• OpenPolicyAgent can be integrated with cloud-hosted resource definitions to enforce custom policies across environments