Installing Windows Container is quite straightforward (follow https://docs.docker.com/install/windows/docker-ee) … except when you have an error message on certain VM (not on every VM) like “Cannot verify the file SHA256. Deleting the file”. After a deep crawl of the web to find a correct way to solve this issue, I found a tons of Github issue answers and blog post that works sometimes but mostly are inaccurate and the package version mentioned is outdated. So I introduce you a method that will keep the process right on board version after version.
Update (07/10/2018) : current version is now 18.03.1-ee-2 (=> https://dockermsft.blob.core.windows.net/dockercontainer/docker-18-03-1-ee-2.zip)
Update (07/16/2018) : Microsoft is playing with manifest (labelling latest binaries as ‘TEST’), so files and SHA256 file hash changed over the night. Some installation issues seems better to handle. Stay tuned.
The quick start page from Microsoft to install Docker on Windows Server 2016 is here, and it’s well written (although not very useful when having installation error) : https://docs.microsoft.com/en-us/virtualization/windowscontainers/quick-start/quick-start-windows-server
Get the right version and Docker install file
To download the correct version of the package, you’ll have to get the manifest and to look for your version to get the right URL :
- Download the manifest file containing every package version :
Start-BitsTransfer -Source https://dockermsft.blob.core.windows.net/dockercontainer/DockerMsftIndex.json - In the manifest, copy the right URL to the install ZIP file (in my case I need 17.06.0-ce) :
Installation
Once you know what you need (in my case version 17-06-0-ce), follow these steps to make it work :
- Go to the temp folder where everything happen (don’t forget to replace by your current username) :
cd C:\Users\<username>\AppData\Local\Temp\DockerMsftProvider\ - Download Docker package (don’t forget to replace the URL by the one you copy previously) :
Start-BitsTransfer -Source https://dockermsft.blob.core.windows.net/dockercontainer/docker-17-06-0-ce.zip -Destination /docker-17-06-0-ce.zip.bak - Copy the file to keep a backup (during the process the file is deleted, you won’t have to download it again) :
cp docker-17-06-0-ce.zip docker-17-06-0-ce.zip.bak - Check the SHA256 Hash :
Get-FileHash -Path /docker-17-06-0-ce.zip -Algorithm SHA256 - Install Docker package :
Install-Package -Name docker -ProviderName DockerMsftProvider -Verbose -RequiredVersion 17.06.0-ce - Tada ! Things should be OK, so the final step is to restart the computer to make everything work like a charm :
Restart-Computer -Force
