Rename standalone-operator -> operator (#7819)

DOC_OWNERS.md

@@ -44,7 +44,7 @@ There are 159 owned istio.io docs.
 - [docs/setup/install/istioctl/index.md](https://preliminary.istio.io/latest/docs/setup/install/istioctl)
 - [docs/setup/install/multicluster/gateways/index.md](https://preliminary.istio.io/latest/docs/setup/install/multicluster/gateways)
 - [docs/setup/install/multicluster/shared/index.md](https://preliminary.istio.io/latest/docs/setup/install/multicluster/shared)
-- [docs/setup/install/standalone-operator/index.md](https://preliminary.istio.io/latest/docs/setup/install/standalone-operator)
+- [docs/setup/install/operator/index.md](https://preliminary.istio.io/latest/docs/setup/install/operator)
 - [docs/setup/install/virtual-machine/index.md](https://preliminary.istio.io/latest/docs/setup/install/virtual-machine)
 - [docs/setup/platform-setup/MicroK8s/index.md](https://preliminary.istio.io/latest/docs/setup/platform-setup/MicroK8s)
 - [docs/setup/platform-setup/alicloud/index.md](https://preliminary.istio.io/latest/docs/setup/platform-setup/alicloud)

content/en/about/feature-stages/index.md

@@ -86,7 +86,7 @@ Below is our list of existing features and their current phases. This informatio
 
 | Feature           | Phase
 |-------------------|-------------------
-| [Standalone Operator](/docs/setup/install/standalone-operator/) | Beta
+| [Standalone Operator](/docs/setup/install/operator/) | Beta
 | [Kubernetes: Envoy Installation and Traffic Interception](/docs/setup/) | Stable
 | [Kubernetes: Istio Control Plane Installation](/docs/setup/) | Stable
 | [Attribute Expression Language](/docs/reference/config/policy-and-telemetry/expression-language/) | Stable

content/en/blog/2019/introducing-istio-operator/index.md

@@ -108,7 +108,7 @@ resource and reacts to changes by updating the Istio installation configuration
 
 In the 1.4 release, the Istio controller is in the alpha phase of development and not fully
 integrated with `istioctl`. It is, however,
-[available for experimentation](/docs/setup/install/standalone-operator/) using `kubectl` commands.
+[available for experimentation](/docs/setup/install/operator/) using `kubectl` commands.
 For example, to install the controller and a default version of Istio into your cluster,
 run the following command:
 

content/en/docs/setup/install/istioctl/index.md

@@ -27,7 +27,7 @@ via command-line options for individual settings or for passing a yaml file cont
 {{< tip >}}
 Providing the full configuration in an `IstioOperator` CR is considered an Istio best practice for production
 environments. It also gives you the option of completely delegating the job of install management to an
-[Istio Operator](/docs/setup/install/standalone-operator), instead of doing it manually using `istioctl`.
+[Istio Operator](/docs/setup/install/operator), instead of doing it manually using `istioctl`.
 {{< /tip >}}
 
 ## Prerequisites

content/en/docs/setup/install/operator/index.md

@@ -4,6 +4,7 @@ description: Instructions to install Istio in a Kubernetes cluster using the Ist
 weight: 25
 keywords: [kubernetes, operator]
 aliases:
+    - /docs/setup/install/standalone-operator
 owner: istio/wg-environments-maintainers
 test: no
 ---

content/en/news/releases/1.4.x/announcing-1.4/change-notes/index.md

@@ -40,7 +40,7 @@ weight: 10
 
 ## Installation
 
-- **Added** the experimental [operator controller](/docs/setup/install/standalone-operator/) for dynamic updates to an Istio installation.
+- **Added** the experimental [operator controller](/docs/setup/install/operator/) for dynamic updates to an Istio installation.
 - **Removed** the `proxy_init` Docker image. Instead, the `istio-init` container reuses the `proxyv2` image.
 - **Updated** the base image to `ubuntu:bionic`.