CODEWITHSUNDEEP
windowspowershelldockercontainersremote-access
G. Gomes
G. Gomes

Reputation: 51

Establish PSSession to Windows docker container from remote machine (not container host)

I'm trying to do an Enter-PSSession to a windows docker container, but from another machine, not the container host.

In this tutorial (http://dinventive.com/blog/2016/01/30/windows-server-core-hello-container/), the guy makes a nested container PSSession inside a host PSSession.

He says : "As you can see we are in two PSSession one on Nanohost and another into the iambasicone container. Which I think is cool and awesome." For that, he uses :

Enter-PSSession -ContainerName ‘iambasicone’ -RunAsAdministrator

In my case, I want to connect directly from the remote machine to the container. I can't use the same expression because the remote machine doesn't have the Containers feature enabled.

Enter-PSSession : The Containers feature may not be enabled on this machine.
At line:1 char:1
+ Enter-PSSession -ContainerName 10.254.34.70
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo : InvalidOperation: (:) [Enter-PSSession], PSInvalidOperationException

    + FullyQualifiedErrorId : CreateRemoteRunspaceForContainerFailed,Microsoft.PowerShell.Commands.EnterPSSessionCommand

So, I have to use the -ComputerName option. But then Credentials are needed, and even if I provide them, an access denied is displayed.

Any ideas if what I'm trying to achieve is even possible? Or containers act not like VM's in this situation? (Because I tried to do the same thing with a VM and it works perfectly...)

Upvotes: 3

Views: 1865

Answers (1)

Arnab
Arnab

Reputation: 605

Not sure how to create an interactive PSSession, but you can access and execute commands on docker containers remotely.

On powershell in local computer enter the following:

$credential = Get-Credential    
$remoteComputerName = "10.20.30.40" # your remote machine
$Session = New-PSSession -ComputerName $remoteComputerName -Credential $credential

Invoke-Command -Session $Session -ScriptBlock { docker exec -t my_container_1 redis-cli info replication }

The above, for example, will give redis replication info on your docker container.

Basically use the following pattern:

Invoke-Command -Session $Session -ScriptBlock { docker exec -t <your container> [your commands] }

Upvotes: 0

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