Kubernetes Deployment Spec: Understanding Replica Count

This "1" in the Kubernetes deployment spec signifies that under the specified selector criteria, only one replica (pod) of the deployment or replica set will be running. "spec:\n selector:\n matchLabels:\n app: dw\n tier: identity\n replicas: 1" This parameter, 'replicas', allows you to specify the desired number of running pods for your deployment. Setting it to 1 ensures that only a single instance of the application is active within the specified namespace and label constraints.