src/go/collectors/go.d.plugin/modules/k8s_state/integrations/kubernetes_cluster_state.md
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# Kubernetes Cluster State
<img src="https://netdata.cloud/img/kubernetes.svg" width="150"/>
Plugin: go.d.plugin
Module: k8s_state
<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
## Overview
This collector monitors Kubernetes Nodes, Pods and Containers.
This collector is supported on all platforms.
This collector only supports collecting metrics from a single instance of this integration.
### Default Behavior
#### Auto-Detection
This integration doesn't support auto-detection.
#### Limits
The default configuration for this integration does not impose any limits on data collection.
#### Performance Impact
The default configuration for this integration is not expected to impose a significant performance impact on the system.
## Metrics
Metrics grouped by *scope*.
The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.
### Per node
These metrics refer to the Node.
Labels:
| Label | Description |
|:-----------|:----------------|
| k8s_cluster_id | Cluster ID. This is equal to the kube-system namespace UID. |
| k8s_cluster_name | Cluster name. Cluster name discovery only works in GKE. |
| k8s_node_name | Node name. |
Metrics:
| Metric | Dimensions | Unit |
|:------|:----------|:----|
| k8s_state.node_allocatable_cpu_requests_utilization | requests | % |
| k8s_state.node_allocatable_cpu_requests_used | requests | millicpu |
| k8s_state.node_allocatable_cpu_limits_utilization | limits | % |
| k8s_state.node_allocatable_cpu_limits_used | limits | millicpu |
| k8s_state.node_allocatable_mem_requests_utilization | requests | % |
| k8s_state.node_allocatable_mem_requests_used | requests | bytes |
| k8s_state.node_allocatable_mem_limits_utilization | limits | % |
| k8s_state.node_allocatable_mem_limits_used | limits | bytes |
| k8s_state.node_allocatable_pods_utilization | allocated | % |
| k8s_state.node_allocatable_pods_usage | available, allocated | pods |
| k8s_state.node_condition | a dimension per condition | status |
| k8s_state.node_schedulability | schedulable, unschedulable | state |
| k8s_state.node_pods_readiness | ready | % |
| k8s_state.node_pods_readiness_state | ready, unready | pods |
| k8s_state.node_pods_condition | pod_ready, pod_scheduled, pod_initialized, containers_ready | pods |
| k8s_state.node_pods_phase | running, failed, succeeded, pending | pods |
| k8s_state.node_containers | containers, init_containers | containers |
| k8s_state.node_containers_state | running, waiting, terminated | containers |
| k8s_state.node_init_containers_state | running, waiting, terminated | containers |
| k8s_state.node_age | age | seconds |
### Per pod
These metrics refer to the Pod.
Labels:
| Label | Description |
|:-----------|:----------------|
| k8s_cluster_id | Cluster ID. This is equal to the kube-system namespace UID. |
| k8s_cluster_name | Cluster name. Cluster name discovery only works in GKE. |
| k8s_node_name | Node name. |
| k8s_namespace | Namespace. |
| k8s_controller_kind | Controller kind (ReplicaSet, DaemonSet, StatefulSet, Job, etc.). |
| k8s_controller_name | Controller name. |
| k8s_pod_name | Pod name. |
| k8s_qos_class | Pod QOS class (burstable, guaranteed, besteffort). |
Metrics:
| Metric | Dimensions | Unit |
|:------|:----------|:----|
| k8s_state.pod_cpu_requests_used | requests | millicpu |
| k8s_state.pod_cpu_limits_used | limits | millicpu |
| k8s_state.pod_mem_requests_used | requests | bytes |
| k8s_state.pod_mem_limits_used | limits | bytes |
| k8s_state.pod_condition | pod_ready, pod_scheduled, pod_initialized, containers_ready | state |
| k8s_state.pod_phase | running, failed, succeeded, pending | state |
| k8s_state.pod_age | age | seconds |
| k8s_state.pod_containers | containers, init_containers | containers |
| k8s_state.pod_containers_state | running, waiting, terminated | containers |
| k8s_state.pod_init_containers_state | running, waiting, terminated | containers |
### Per container
These metrics refer to the Pod container.
Labels:
| Label | Description |
|:-----------|:----------------|
| k8s_cluster_id | Cluster ID. This is equal to the kube-system namespace UID. |
| k8s_cluster_name | Cluster name. Cluster name discovery only works in GKE. |
| k8s_node_name | Node name. |
| k8s_namespace | Namespace. |
| k8s_controller_kind | Controller kind (ReplicaSet, DaemonSet, StatefulSet, Job, etc.). |
| k8s_controller_name | Controller name. |
| k8s_pod_name | Pod name. |
| k8s_qos_class | Pod QOS class (burstable, guaranteed, besteffort). |
| k8s_container_name | Container name. |
Metrics:
| Metric | Dimensions | Unit |
|:------|:----------|:----|
| k8s_state.pod_container_readiness_state | ready | state |
| k8s_state.pod_container_restarts | restarts | restarts |
| k8s_state.pod_container_state | running, waiting, terminated | state |
| k8s_state.pod_container_waiting_state_reason | a dimension per reason | state |
| k8s_state.pod_container_terminated_state_reason | a dimension per reason | state |
## Alerts
There are no alerts configured by default for this integration.
## Setup
### Prerequisites
No action required.
### Configuration
#### File
The configuration file name for this integration is `go.d/k8s_state.conf`.
You can edit the configuration file using the `edit-config` script from the
Netdata [config directory](/docs/netdata-agent/configuration/README.md#the-netdata-config-directory).
```bash
cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config go.d/k8s_state.conf
```
#### Options
There are no configuration options.
#### Examples
There are no configuration examples.
## Troubleshooting
### Debug Mode
To troubleshoot issues with the `k8s_state` collector, run the `go.d.plugin` with the debug option enabled. The output
should give you clues as to why the collector isn't working.
- Navigate to the `plugins.d` directory, usually at `/usr/libexec/netdata/plugins.d/`. If that's not the case on
your system, open `netdata.conf` and look for the `plugins` setting under `[directories]`.
```bash
cd /usr/libexec/netdata/plugins.d/
```
- Switch to the `netdata` user.
```bash
sudo -u netdata -s
```
- Run the `go.d.plugin` to debug the collector:
```bash
./go.d.plugin -d -m k8s_state
```