Adds docs for DTR upgrade

install/install-dtr.md

@@ -189,4 +189,4 @@ See [Docker Trusted Registry Authentication settings](../configure/configuration
 ## See also
 
 * [Install DTR offline](install-dtr-offline.md)
-* [Upgrade DTR](upgrade.md)
+* [Upgrade DTR](upgrade/upgrade-major.md)

install/upgrade/index.md

@@ -0,0 +1,12 @@
+<!--[metadata]>
++++
+draft=true
+title = "Upgrade"
+description = "Learn how to upgrade your Docker Trusted Registry."
+keywords = ["docker, dtr, upgrade, install"]
+[menu.main]
+parent="workw_dtr"
+identifier="menu_dtr_upgrade"
+weight=40
++++
+<![end-metadata]-->

install/upgrade/upgrade-major.md

@@ -0,0 +1,101 @@
+<!--[metadata]>
++++
+aliases = ["/docker-trusted-registry/install/upgrade/"]
+title = "Upgrade to DTR 2.0"
+description = "Learn how to upgrade your Docker Trusted Registry to the latest major release."
+keywords = ["docker, dtr, upgrade, install"]
+[menu.main]
+parent="workw_dtr_install"
+identifier="dtr_upgrade_major"
+weight=40
++++
+<![end-metadata]-->
+
+# Upgrade to DTR 2.0
+
+The first step in upgrading to Docker Trusted Registry (DTR) 2.0, is ensuring
+you are running DTR 1.4.3. If that's not the case, start by upgrading your
+installation to version 1.4.3, and then upgrade to DTR 2.0.
+
+To upgrade from DTR 1.4.3 to 2.0 you first need to do a fresh installation of
+DTR 2.0. Then you migrate the data from your DTR 1.4.3 installation to the 2.0
+installation. Finally, you decommission your 1.4.3 by uninstalling it.
+
+## Step 1. Install DTR 2.0
+
+The first step in upgrading to DTR 2.0 is doing a fresh installation of DTR 2.0.
+This can be done on the same host were DTR 1.4.3 is already running or on a
+new host.
+
+If you decide to install the new DTR on the same host, you'll need
+to install it on a port other than 443, since DTR 1.4.3 is already using it.
+Use these instructions to install DTR 2.0:
+
+* [Release notes](../../release-notes/release-notes.md)
+* [System requirements](../system-requirements.md)
+* [DTR architecture](../../architecture.md)
+* [Install DTR 2.0](../install-dtr.md)
+
+
+## Step 2. Migrate metadata
+
+Once you have your DTR 1.4.3 and the new DTR 2.0 running, you can migrate
+configurations, accounts, and repository metadata from one installation to
+another.
+
+For this, you can use the `docker/dtr migrate` command. This command
+migrates configurations, accounts, and repository metadata, it doesn't affect
+the images that are on the storage backend used by DTR 1.4.3.
+
+To find what options are available on the migrate command, check the reference
+documentation, or run:
+
+```bash
+$ docker run --rm -it docker/dtr migrate --help
+```
+
+To start the migration, on the host running DTR 1.4.3, run:
+
+```bash
+# Get the certificates used by UCP
+$ curl https://$UCP_HOST/ca > ucpca.crt
+
+# Get the certificates used by DTR 2.0
+$ docker run -it --rm \
+  -v /var/run/docker.sock:/var/run/docker.sock \
+  docker/dtr dump-certs \
+  --host $UCP_HOST --ucp-ca "$(cat ucpca.crt)" \
+  --pod-id $DTR_POD_ID > dtrca.crt
+
+# Migrate configurations, accounts, and repository metadata
+docker run -it --rm \
+  -v /var/run/docker.sock:/var/run/docker.sock \
+  docker/dtr migrate \
+  --host $UCP_HOST --ucp-ca "$(cat ucpca.crt)" \
+  --dtr-host https://$DTR_HOST --dtr-ca "$(cat dtrca.crt)" \
+  --pod-id $DTR_POD_ID
+```
+
+## Step 3. Test your installation
+
+After the migration finishes, test your DTR 2.0 installation to make sure it is
+properly configured.
+In your browser navigate to the DTR **Settings page**, and check that DTR 2.0:
+
+* Is correctly licensed,
+* Has the correct domain name configured,
+* The storage backend is correctly configured,
+* User authentication is correctly configured.
+
+You should also validate that you can now push and pull images to DTR 2.0.
+
+## Step 4. Decommission DTR 1.4.3
+
+Once you've fully tested your new installation, you can uninstall DTR 1.4.3.
+
+<!-- TODO: include instructions on how to uninstall -->
+
+## Where to go next
+
+* [Install DTR offline](../install-dtr-offline.md)
+* [Monitor DTR](../../monitor-troubleshoot/monitor.md)

install/upgrade/upgrade-minor.md

@@ -1,17 +1,19 @@
 <!--[metadata]>
 +++
-title = "Upgrade"
-description = "Learn how to upgrade your Docker Trusted Registry."
+draft=true
+title = "# Upgrade to a new minor version"
+description = "Learn how to upgrade your Docker Trusted Registry to a new minor version or patch release."
 keywords = ["docker, dtr, upgrade, install"]
 [menu.main]
-parent="workw_dtr_install"
-identifier="dtr_upgrade"
-weight=40
+parent="menu_dtr_upgrade"
+identifier="dtr_upgrade_minor"
+weight=0
 +++
 <![end-metadata]-->
 
 
-# Upgrade the Trusted Registry and the CS Engine
+# Upgrade to a new minor version
+
 
 This document describes the steps to upgrade Docker Trusted Registry and the
 commercially supported Engine (CS Engine). When you first install, the general