Updating package clears down C:\Program Files\docker

[sixeyed]

Running Install-Package docker -Update clears down the existing contents of C:\Program Files\docker before installing the update. Two problems with this:

• if the install fails, the old version has already been deleted, so you lose Docker
• if you had other files in C:\Program Files\docker you lose them after the upgrade.

I've seen the first problem happen with a poor Internet connection.

The second problem means you lose Docker Compose if you had downloaded docker-compose.exe to the Docker directory.

Example - upgrading from 1.13 to 17.03:

PS C:\Program Files\Docker> ls

    Directory: C:\Program Files\Docker

Mode                LastWriteTime         Length Name
----                -------------         ------ ----
d-----       08/02/2017     23:10                1.12
d-----       08/02/2017     23:11                completion
-a----       23/02/2017     01:08        6362399 docker-compose.exe
-a----       08/02/2017     16:51       13563392 docker.exe
-a----       08/02/2017     16:51       32641790 dockerd.exe
-a----       06/01/2017     08:14            164 metadata.json

PS C:\Program Files\Docker> install-package docker -update

The package(s) come(s) from a package source that is not marked as trusted.
Are you sure you want to install software from 'DockerDefault'?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "N"): a

Name                           Version          Source           Summary
----                           -------          ------           -------
Docker                         17.03.0-ee       DockerDefault    Contains Docker EE for use with Windows Server 2016 and Nano Server.

PS C:\Program Files\Docker> ls

    Directory: C:\Program Files\Docker

Mode                LastWriteTime         Length Name
----                -------------         ------ ----
-a----       01/03/2017     01:02       13568264 docker.exe
-a----       01/03/2017     01:02       32660368 dockerd.exe
-a----       13/03/2017     17:41            152 metadata.json