MCP Server K8s Lab - Unable to connect k8s-mcp-server

Hi team,

I’m doing the Crash Course: MCP For Beginners. Its going great so far. However, on the last lab i’m unable to implement the same steps that are given in the solution. mcp.json file is given to connect to pre-build k8s-mcp-server however following the same step i’m unable to perform the tasks that are given in the instructions.

Please find the instructions & mcp.json file below:

Configuration Steps:

  1. Click on the :kangaroo: kangaroo icon to open Roo-Code
  2. Click on the 3 servers icon at the top of Roo-Code
  3. Go to Edit Project MCP
  4. Add the following configuration to your MCP settings

mcp.json:
{
“mcpServers”: {
“k8s-mcp-server”: {
“command”: “sudo”,
“args”: [
“docker”,
“run”,
“-i”,
“–rm”,
“-v”,
“/home/lab-user/.kube/config:/home/appuser/.kube/config:ro”,
“ginnux/k8s-mcp-server:latest”,
“–mode”,
“stdio”
]
}
}
}

==================================
Error
Error executing MCP tool:
Not connected

Error
Unexpected API Response: The language model did not provide any assistant messages. This may indicate an issue with the API or the model’s output.

Hi @shayan.naeem007

Could you please share the lab link? I’ll check it.

Hi Raymond,

Its the second last module in course “Crash Course: MCP For Beginners”

https://learn.kodekloud.com/user/courses/crash-course-mcp-for-beginners/module/f1e44479-23c8-46ec-b1b9-d9e90146921b/lesson/06e9aacb-4b19-49c3-9e75-c5ef963cf5d9

Hi @shayan.naeem007

Thanks for your feedback,

This is a valid issue. It looks like the lab can’t run the MCP server using Docker. I’ve sent this to the team to check, and I will get back to you.

Hi @shayan.naeem007

Thanks for your feedback, the team has updated it.

Hey Raymond,
I’m still getting the same issue.

Hi @Spandan_Dutta

It’s working properly on my end. Could you please try again and let me know if the issue persists?

@raymond.baoly Hi im getting issue onnecting llm in

Kubernetes MCP Server

Connect to my Kubernetes cluster

<environment_details>

VSCode Visible Files

VSCode Open Tabs

Current Time

10/15/2025, 12:53:53 PM (UTC, UTC+0:00)

Current Cost

$0.00

Current Mode

debug
:beetle: Debug
deepseek/deepseek-chat-v3-0324:free

Current Workspace Directory (/home/lab-user) Files

No files found.
</environment_details>