test with a valid mapping

Dockerfile.bats

@@ -3,3 +3,4 @@ RUN apk --no-cache add ca-certificates parallel libxml2-utils
 COPY dist/kubeconform_linux_amd64_v1/kubeconform /code/bin/
 COPY acceptance.bats acceptance-nonetwork.bats /code/
 COPY fixtures /code/fixtures
+COPY scripts/fixtures/mapping_v2-expected.json /code/fixtures/registry/mapping_v2.json

acceptance.bats

@@ -345,3 +345,8 @@ resetCacheFolder() {
   run bash -c "bin/kubeconform -schema-location default -schema-location 'https://raw.githubusercontent.com/datreeio/CRDs-catalog/main/{{.Group}}/{{.ResourceKind}}_{{.ResourceAPIVersion}}.json' fixtures/httpproxy.yaml"
   [ "$status" -eq 0 ]
 }
+
+@test "Pass when parsing a valid Kubernetes config with an expected unknown field" {
+  run bin/kubeconform -schema-location default -schema-location 'fixtures/registry/mapping_v2.json' fixtures/expected_unkown_field.yaml
+  [ "$status" -eq 0 ]
+}

fixtures/expected_unkown_field.yaml

@@ -0,0 +1,12 @@
+apiVersion: getambassador.io/v2
+kind: Mapping
+metadata:
+  name: emissary
+  namespace: default
+spec:
+  # `spec` is tagged with x-kubernetes-preserve-unknown-fields and `ambassador_id` is not declared
+  ambassador_id:
+  - this-ambassador
+  host: some-host.dev
+  prefix: /
+  service: some-service.this-namespace.cluster.local