Deployment without PodDisruptionBudget

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Metadata

Id: b23e9b98-0cb6-4fc9-b257-1f3270442678

Cloud Provider: k8s

Framework: Kubernetes

Severity: Low

Category: Availability

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Description

Deployments should be assigned a PodDisruptionBudget to ensure high availability.

Compliant Code Examples

apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: nginx-pdb
spec:
  minAvailable: 2
  selector:
    matchLabels:
      app: nginx32
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx32
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80

Non-Compliant Code Examples

apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: nginx-pdb
spec:
  minAvailable: 2
  selector:
    matchLabels:
      app: xpto
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80