Kubernetes Tools MCP Server

Parameters ---------- None This function does not take any parameters. Returns ------- list of NamespaceSummary List of namespace summary objects. Each NamespaceSummary has the following fields: name : str Name of the namespace. status : str Status phase of the namespace. age : datetime.timedelta Age of the namespace (current time minus creation timestamp). Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to list namespaces fails.

Parameters ---------- None This function does not take any parameters. Returns ------- list of NodeSummary List of node summary objects. Each NodeSummary has the following fields: name : str Name of the node. status : str Status of the node (Ready, NotReady, etc.). roles : list[str] List of roles for the node (e.g., ['control-plane', 'master']). age : datetime.timedelta Age of the node (current time minus creation timestamp). version : str Kubernetes version running on the node. internal_ip : Optional[str] Internal IP address of the node. external_ip : Optional[str] External IP address of the node (if available). os_image : Optional[str] Operating system image running on the node. kernel_version : Optional[str] Kernel version of the node. container_runtime : Optional[str] Container runtime version on the node. Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to list nodes fails.

Retrieves a list of PodSummary objects for pods in a given namespace or all namespaces. Parameters ---------- namespace : Optional[str], default=None The specific namespace to list pods from. If None, lists pods from all namespaces. Returns ------- list of PodSummary A list of PodSummary objects, each providing a summary of a pod's status with the following fields: name : str Name of the pod. namespace : str Namespace in which the pod is running. total_containers : int Total number of containers in the pod. ready_containers : int Number of containers currently in ready state. restarts : int Total number of restarts for all containers in the pod. last_restart : Optional[datetime.timedelta] Time since the container last restart (None if never restarted). age : datetime.timedelta Age of the pod (current time minus creation timestamp). ip : Optional[str] Pod IP address (None if not assigned). node : Optional[str] Name of the node where the pod is running (None if not scheduled). Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to list pods fails.

Get the status for all containers in a specified Kubernetes pod. Parameters ---------- pod_name : str Name of the pod to retrieve container statuses for. namespace : str, optional Namespace of the pod (default is "default"). Returns ------- list of ContainerStatus List of container status objects for the specified pod. Each ContainerStatus has the following fields: pod_name : str Name of the pod. namespace : str Namespace of the pod. container_name : str Name of the container. image : str Image name. ready : bool Whether the container is currently passing its readiness check. The value will change as readiness probes keep executing. restart_count : int Number of times the container has restarted. started : Optional[bool] Started indicates whether the container has finished its postStart lifecycle hook and passed its startup probe. stop_signal : Optional[str] Stop signal for the container. state : Optional[ContainerState] Current state of the container. last_state : Optional[ContainerState] Last state of the container. volume_mounts : list[VolumeMountStatus] Status of volume mounts for the container resource_requests : dict[str, str] Describes the minimum amount of compute resources required. If Requests is omitted for a container, it defaults to Limits if that is explicitly specified, otherwise to an implementation-defined value. Requests cannot exceed Limits. resource_limits : dict[str, str] Describes the maximum amount of compute resources allowed. allocated_resources : dict[str, str] Compute resources allocated for this container by the node. Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to read the pod fails.

Get events for a specific Kubernetes pod. This is equivalent to the kubectl command: `kubectl get events -n NAMESPACE --field-selector involvedObject.name=POD_NAME,involvedObject.kind=Pod` Parameters ---------- pod_name : str Name of the pod to retrieve events for. namespace : str, optional Namespace of the pod (default is "default"). Returns ------- list of EventSummary List of events associated with the specified pod. Each EventSummary has the following fields: last_seen : Optional[datetime.datetime] Timestamp of the last occurrence of the event (if available). type : str Type of the event. reason : str Reason for the event. object : str The object this event applies to. message : str Message describing the event. Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to list events fails.

Retrieves the spec for a given pod in a specific namespace. Args: pod_name (str): The name of the pod. namespace (str): The namespace the pod belongs to (defaults to "default"). Returns ------- dict[str, Any] The pod's spec object, containing its desired state. It is converted from a V1PodSpec to a dictionary. Key fields include: containers : list of kubernetes.client.V1Container List of containers belonging to the pod. Each container defines its image, ports, environment variables, resource requests/limits, etc. init_containers : list of kubernetes.client.V1Container, optional List of initialization containers belonging to the pod. volumes : list of kubernetes.client.V1Volume, optional List of volumes mounted in the pod and the sources available for the containers. node_selector : dict, optional A selector which must be true for the pod to fit on a node. Keys and values are strings. restart_policy : str Restart policy for all containers within the pod. Common values are "Always", "OnFailure", "Never". service_account_name : str, optional Service account name in the namespace that the pod will use to access the Kubernetes API. dns_policy : str DNS policy for the pod. Common values are "ClusterFirst", "Default". priority_class_name : str, optional If specified, indicates the pod's priority_class via its name. node_name : str, optional NodeName is a request to schedule this pod onto a specific node. Raises ------ K8SConfigError If unable to initialize the K8S API K8sApiError If the pod is not found, configuration fails, or any other API error occurs.

Retrieves logs from a Kubernetes pod and container. Args: namespace (str): The namespace of the pod. pod_name (str): The name of the pod. container_name (str, optional): The name of the container within the pod. If None, defaults to the first container. Returns: str, optional: Log content if any found for this pod/container, or None otherwise Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to fetch logs fails or an unexpected error occurs.

Retrieves a list of DeploymentSummary objects for deployments in a given namespace or all namespaces. Similar to `kubectl get deployements`. Parameters ---------- namespace : Optional[str], default=None The specific namespace to list deployments from. If None, lists deployments from all namespaces. Returns ------- list of DeploymentSummary A list of DeploymentSummary objects, each providing a summary of a deployment's status with the following fields: name : str Name of the deployment. namespace : str Namespace in which the deployment is running. total_replicas : int Total number of replicas desired for this deployment. ready_replicas : int Number of replicas that are currently ready. up_to_date_replicas : int Number of replicas that are up to date. available_replicas : int Number of replicas that are available. age : datetime.timedelta Age of the deployment (current time minus creation timestamp). Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to list deployments fails.

Parameters ---------- namespace : Optional[str], default=None The specific namespace to list services from. If None, lists services from all namespaces. Returns ------- list of ServiceSummary A list of ServiceSummary objects, each providing a summary of a service's status with the following fields: name : str Name of the service. namespace : str Namespace in which the service is running. type : str Type of the service (ClusterIP, NodePort, LoadBalancer, ExternalName). cluster_ip : Optional[str] Cluster IP address assigned to the service (None for ExternalName services). external_ip : Optional[str] External IP address if applicable (for LoadBalancer services). ports : list[PortInfo] List of ports (and their protocols) exposed by the service. age : datetime.timedelta Age of the service (current time minus creation timestamp). Raises ------ K8sConfigError If unable to initialize the K8S API. K8sApiError If the API call to list services fails.