create deployment in go

create.go

func createDeployment(clientAppsV1 typedappsv1.AppsV1Interface) error {
	deployment := &appsv1.Deployment{
		ObjectMeta: metav1.ObjectMeta{
			Name: appName,
			Labels: map[string]string{
				"app": appName,
			},
		},
		Spec: appsv1.DeploymentSpec{
			Replicas: pointer.Int32Ptr(1),
			Selector: &metav1.LabelSelector{MatchLabels: map[string]string{
				"app": appName,
			}},
			Template: corev1.PodTemplateSpec{
				ObjectMeta: metav1.ObjectMeta{
					Name: appName,
					Labels: map[string]string{
						"app": appName,
					},
				},
				Spec: corev1.PodSpec{Containers: []corev1.Container{
					{
						Name:            appName,
						Image:           "achoimet/gkbm",
						Ports:           []corev1.ContainerPort{{Name: "http", ContainerPort: 3000}},
						ImagePullPolicy: corev1.PullAlways,
					},
				}},
			},
		},
	}

	_, err := clientAppsV1.Deployments(appName).Create(deployment)
	if err != nil {
		return err
	}
	return err
}