Failed to connect. Is Docker running?

[bruchentalandreea]

On Ubuntu 18.04 I got this error with Docker extension installed.It shows both at containers and images "Failed to connect. Is Docker installed?" I already tried to get an older version of Docker (1.22.2) or to reinstall the vs code but i get the same error.
I need to mention that I installed the Docker also on the VM, not only the extension.

[bwateratmsft]

When you say you installed Docker on the VM, do you mean that you are using SSH remoting?

[gaborvar]

I experience similar symptoms: "Failed to connect. Is Docker installed?" appears in he Containers, Images, Contexts and Networks panes of the extension.
This command works fine from a WSL/Ubuntu terminal of VSC:

docker exec -it homeassistant bash

According to the installation instructions docker group membership is required for the account created in the WSL/Ubuntu environment for accessing Docker. I validated this (and the above docker command would not execute either I guess), however I am wondering if the Windows account under which VSC is running may also have to be authorised.

I did not deploy Docker Desktop and I don't intend to.
I don't see obvious issues in settings.json:
{
"workbench.colorTheme": "Default High Contrast Light",
"docker.commands.attach": "${containerCommand} exec -it ${containerId} ${shellCommand}",
"docker.commands.run": "${containerCommand} run --rm -d ${exposedPorts} ${tag}"
}

Troubleshooting tips on https://github.com/microsoft/vscode-docker/wiki/Troubleshooting refer to a remote development scenario but in my case all layers are on the same Windows machine, although Docker runs in WSL/Ubuntu and VSC runs on the Windows 10 host on the same machine. From what I understand about WSL I assume I don't have to duplicate tooling across the Windows and the Linux/Ubuntu layer running in it.

VSC Version: 1.80.2 (user setup)
ms-azuretools.vscode-docker
v1.26.0

WSL version: 1.2.5.0
Kernel version: 5.15.90.1
WSLg version: 1.0.51
MSRDC version: 1.2.3770
Direct3D version: 1.608.2-61064218
DXCore version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp
Windows version: 10.0.19045.3208

wsl -l -v    
  NAME      STATE           VERSION
* Ubuntu    Running         2    

Docker version 20.10.21, build 20.10.21-0ubuntu1~22.04.3

Am I missing anything?

[bwateratmsft]

Running of the Docker commands in WSL is not currently supported, this is being tracked in #3803. If you use WSL remoting everything should work.

[AzCode-Bot]

This issue has been closed automatically because it needs more information and has not had recent activity. See also our issue reporting guidelines.

Happy Coding!