Document how to do a clean install

Fixes #2311

Signed-off-by: Carolyn Van Slyck <[email protected]>

docs/content/install.md

@@ -9,6 +9,7 @@ description: Installing the Porter client and mixins
 Porter is about to release v1.0.0, and we strongly recommend that you install that version of Porter if you are just starting out.
 
 * [Install Porter v1](#recommended)
+* [Clean Install](#clean-install)
 
 If you are already using Porter, here are links to install an older v0 version of Porter.
 Heads up that v0 will be deprecated a few months after v1.0.0 is released!
@@ -87,6 +88,21 @@ porter version
 [mailing list]: https://groups.io/g/porter
 [Slack]: /community/#slack
 
+# Clean Install
+
+To perform a clean installation of Porter:
+
+1. Remove the PORTER_HOME directory, which by default is located at `~/.porter`.
+2. Start over with a fresh database. If you were using an external database, update your porter configuration file to use a different database.
+
+   Otherwise, if you had not specified a storage plugin or database in the configuration file, then your database is located in a container in Docker.
+   Remove the mongodb container and volume, so that when Porter is run again, it creates a new database: 
+   ```
+   docker rm -f porter-mongodb-docker-plugin
+   docker volume rm porter-mongodb-docker-plugin-data
+   ```
+3. Install Porter following the instructions on this page.
+
 # Latest
 
 Install the most recent stable v0 release of porter and the [exec mixin].

docs/content/plugins/mongodb-docker.md

@@ -36,3 +36,13 @@ default-storage = "mymongo"
 ### port
 
 The port parameter configures which port the MongoDB server listens on. By default, this plugin listens on 27018.
+
+
+## Remove Plugin Data
+
+If you want to do a fresh installation of Porter and start over with a new database, run the following commands to remove the container and volume used by the plugin.
+
+```
+docker rm -f porter-mongodb-docker-plugin
+docker volume rm porter-mongodb-docker-plugin-data
+```