Add keyword for retrieving Kubernetes secrets

- Implement KubectlGetSecretsKeywords class to support retrieving
  and listing Kubernetes secrets via 'kubectl get secrets'.

Change-Id: I97c101a98c80549f648b221b30385fd31b3e94dc
Signed-off-by: Andrew Vaillancourt <andrew.vaillancourt@windriver.com>

keywords/k8s/secret/kubectl_get_secret_keywords.py

@@ -0,0 +1,48 @@
+from framework.ssh.ssh_connection import SSHConnection
+from keywords.base_keyword import BaseKeyword
+from keywords.k8s.k8s_command_wrapper import export_k8s_config
+from keywords.k8s.secret.object.kubectl_get_secret_output import KubectlGetSecretOutput
+
+
+class KubectlGetSecretsKeywords(BaseKeyword):
+    """
+    Keyword class for retrieving Kubernetes secrets.
+    """
+
+    def __init__(self, ssh_connection: SSHConnection):
+        """
+        Constructor.
+
+        Args:
+            ssh_connection (SSHConnection): The SSH connection object.
+        """
+        self.ssh_connection = ssh_connection
+
+    def get_secrets(self, namespace: str = "default") -> KubectlGetSecretOutput:
+        """
+        Runs `kubectl get secrets` and returns a parsed output object.
+
+        Args:
+            namespace (str): Kubernetes namespace
+
+        Returns:
+            KubectlGetSecretOutput: Parsed secrets list
+        """
+        cmd = f"kubectl get secrets -n {namespace}"
+        output = self.ssh_connection.send(export_k8s_config(cmd))
+        self.validate_success_return_code(self.ssh_connection)
+
+        return KubectlGetSecretOutput(output)
+
+    def get_secret_names(self, namespace: str = "default") -> list[str]:
+        """
+        Returns a list of secret names in the given namespace.
+
+        Args:
+            namespace (str): Kubernetes namespace
+
+        Returns:
+            list[str]: Secret names
+        """
+        secrets_output = self.get_secrets(namespace)
+        return [secret.get_name() for secret in secrets_output.kubectl_secret]