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Assertion trees

Test steps:

  1. Creates a Deployment with 2 replicas
  2. Asserts that the number of replicas is > 1 and that status.replicas == spec.replicas

Setup

See Setup docs

Manifests

resources.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 2
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx

assertions.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
(status.replicas == spec.replicas): true
spec:
  (replicas > `1`): true

Test

chainsaw-test.yaml

# yaml-language-server: $schema=https://raw.githubusercontent.com/kyverno/chainsaw/main/.schemas/json/test-chainsaw-v1alpha1.json
apiVersion: chainsaw.kyverno.io/v1alpha1
kind: Test
metadata:
  name: assertion-tree
spec:
  steps:
  - try:
    - apply:
        file: resources.yaml
    - assert:
        file: assertions.yaml

Execute

$ chainsaw test