K8s PDB

Creates a Kubernetes PodDisruptionBudget from a native manifest definition.

Use this module when a Rabbit service needs to guarantee minimum pod availability during voluntary disruptions such as node drains or cluster upgrades.

Supported Features

• PodDisruptionBudget creation from a standard Kubernetes manifest.
• minAvailable or maxUnavailable constraints.
• Label selector matching.

Prerequisites

• A kubeconfig secret created by the k8s-access module.
• The target namespace and workload must exist.

Important Notes

• The configurations key accepts a complete Kubernetes PDB manifest (without apiVersion and kind).
• Use either minAvailable or maxUnavailable, not both.
• selector.matchLabels must match the labels on the target pods.

Minimal Example

services:
  - name: "k8s PDB"
    module: "k8s-pdb"
    id: "app-pdb"
    deployment_order: 120
    configurations:
      metadata:
        name: "www-example-com"
        namespace: "www-example-com"
      spec:
        minAvailable: 1
        selector:
          matchLabels:
            app: "www-example-com"

Outputs

This module does not produce outputs.

Full Configuration Schema

The configurations key accepts a native Kubernetes PDB manifest body.

configurations:
  metadata:
    name: ""
    namespace: ""
    labels: {}
    annotations: {}
  spec:
    minAvailable: 1
    maxUnavailable: null
    selector:
      matchLabels: {}

Field	Type	Required	Description
metadata.name	string	Yes	PDB name.
metadata.namespace	string	Yes	Target namespace.
metadata.labels	map[string]	No	Kubernetes labels.
metadata.annotations	map[string]	No	Kubernetes annotations.
spec.minAvailable	number or string	Conditional	Minimum available pods. Use this or maxUnavailable.
spec.maxUnavailable	number or string	Conditional	Maximum unavailable pods. Use this or minAvailable.
spec.selector.matchLabels	map[string]	Yes	Label selector matching target pods.