"istio.io/istio/pkg/test/framework/components/echo/common/deployment"
	"istio.io/istio/pkg/test/framework/components/istio"
	"istio.io/istio/pkg/test/framework/components/namespace"
	"istio.io/istio/pkg/test/framework/resource"
	ingressutil "istio.io/istio/tests/integration/security/sds_ingress/util"
)

var (
	inst         istio.Instance
	apps         deployment.SingleNamespaceView
	echo1NS      namespace.Instance

	"istio.io/istio/pkg/test/framework/components/echo/common/deployment"
	"istio.io/istio/pkg/test/framework/components/istio"
	"istio.io/istio/pkg/test/framework/label"
	"istio.io/istio/pkg/test/kube"
	"istio.io/istio/pkg/test/util/file"
	"istio.io/istio/pkg/test/util/retry"
	"istio.io/istio/tests/integration/pilot/common"
)

var (
	i istio.Instance

	apps = deployment.SingleNamespaceView{}
)

const (

			args:          strings.Split("deployment/random-gibberish", " "),
			wantException: true,
		},
		{ // case 3: supplying nonexistent deployment name
			args:          strings.Split("deployment/random-gibberish.default", " "),
			wantException: true,
		},
		{ // case 4: supplying nonexistent deployment name in nonexistent namespace
			args:          strings.Split("deployment/random-gibberish.bogus", " "),
			wantException: true,

		Setup(func(ctx resource.Context) error {
			config = deployment.Config{
				Namespaces: []namespace.Getter{
					namespace.Future(&echo1NS),
				},
				Configs: echo.ConfigFuture(&customConfig),
			}
			err := addDefaultConfig(ctx, config, &customConfig)
			if err != nil {
				return err
			}
			return nil
		}).
		Setup(deployment.SetupSingleNamespace(&apps, deployment.Config{
			Namespaces: []namespace.Getter{

metadata:
  name: helloworld
  labels:
    app: helloworld
    service: helloworld
spec:
  ports:
  - port: 5000
    name: http
  selector:
    app: helloworld
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: helloworld-v1
  labels:
    app: helloworld
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: helloworld
      version: v1
  template:

spec:
  ipFamilyPolicy: RequireDualStack
  ipFamilies:
  - IPv6
  - IPv4
  ports:
  - port: 5000
    name: http
  selector:
    app: helloworld
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: helloworld-v1
  labels:
    app: helloworld
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: helloworld
      version: v1
  template:

You could use these tools and ideas if you are setting up **your own deployment system** while taking care of the other deployment concepts yourself.

  resources:
  - customresourcedefinitions.apiextensions.k8s.io
  - customresourcedefinitions
  verbs:
  - '*'
- apiGroups:
  - apps
  - extensions
  resources:
  - daemonsets
  - deployments
  - deployments/finalizers
  - replicasets
  verbs:
  - '*'
- apiGroups:
  - autoscaling
  resources:
  - horizontalpodautoscalers
  verbs:
  - '*'
- apiGroups:
  - monitoring.coreos.com
  resources:

			err := setupApps(ctx, namespace.Future(&appNS), namespace.Future(&serviceNS), &customConfig)
			if err != nil {
				return err
			}
			return nil
		}).
		Setup(deployment.SetupTwoNamespaces(&apps, deployment.Config{
			Namespaces: []namespace.Getter{
				namespace.Future(&appNS),
				namespace.Future(&serviceNS),
			},
			Configs: echo.ConfigFuture(&customConfig),
		})).

apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: {{ include "gateway.name" . }}
  namespace: {{ .Release.Namespace }}
  labels:
    {{- include "gateway.labels" . | nindent 4 }}
  annotations:
    {{- .Values.annotations | toYaml | nindent 4 }}
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: {{ .Values.kind | default "Deployment" }}