Home Assistant Kubernetes Integration

This is a custom component for monitoring your Kubernetes cluster with Home Assistant.

Installation

1. Install this Integration as a HACS custom repository or just copy the content of the release zip to your custom_components directory.
2. Copy the config which you use to access your Kubernetes cluster to the config folder of your Home Assistant instace (usually you can find this file here: ~/.kube/config or /etc/kubernetes/admin.conf on your master node)
3. Add the Integration in Home Assistant by navigating to Configuration -> Integrations -> Add Integration and search for kubernetes

Sensors

The integration will create a seperate sensor for each Kubernetes component. Following components are supported at the moment:

• Nodes
• Namespaces
• Deployments
• DaemonSets
• Pods

The sensors will be named with this schema: kind_namespace_name. For example a Pod sensor could be named sensor.deployment_homeassistant_homeassistant_db You can find further details of the component in the attributes of the sensor. If you want to monitor specific details of a sensor you can create a template sensor like that:

{{ state_attr('sensor.daemonset_glances_glances', 'spec')["template"]["spec"]["containers"][0]["image"] }}

Each sensor will be created and deleted dynamically. For example if a deployments spawns another Pod, there will be another sensor in your Home-Assistant. If the Pod gets deleted, the sensor will be removed as well.

Services

The integration provides a few service for managing Kubernetes

set_unschedulable

Set the unschedulable flag of a Node. Attention this will not drain the node!

service: kubernetes.set_unschedulable
target:
  entity_id: sensor.node_pi02 data:
unschedulable: true

set_image_deployment / set_image_daemon_set

Sets the image of a Deployment or DaemonSet. This service acts like kubectl set image.

service: kubernetes.set_image_deployment
target:
  entity_id: sensor.deployment_homeassistant_homeassistant
data:
  container: homeassistant
  image: homeassistant/home-assistant:2021.10