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Windows Hosted Runner: Docker calls to wrong host inside runner

Hello Community,

I also asked that question on SO but thought its more bitbucket specific so it would be good to ask this question here:

Ive got a windows runnter on my  win2019 server wit latest docker installed.

 

As suggested here: https://github.com/StefanScherer/dockerfiles-windows/tree/main/dockertls

 

I set up docker for tcp with activated TLS.

So far so good.

Outside the pipeline the script works just fine - also from my workstation im able to deploy the docker-compose project to my server.

 

However when it comes to run the exact same command inside the pipeline it ends up using the wrong host/port:

Command:  docker -H tcp://<ip>:2376 --tls --tlsverify --tlscacert=.\.dockercert\ca.pem --tlscert=.\.dockercert\cert.pem --tlskey=.\.dockercert\key.pem compose up -f <my yml files>...

 

Result:

error during connect: Get "http://localhost:2375/v1.24/containers/json?all=1&filters=...": dial tcp [::1]:2375: connectex: No connection could be made because the target machine actively refused it.

 

You can see somehow inside the pipeline docker tries to connect to http://localhost:2375 instead of "<ip>:2376". 

 

So I asume somethings happening inside the runner that changes the host or even removed the param, but I thought its just a java application that run on my powershell.

 

The cert files exist and as mentioned no problems when I run the command from any other mashine.

 

Any idea  how to fix it?

  

 

Best,

 

Malte

 

 

1 answer

0 votes

Hi @maldoe1990,


You mentioned

Outside the pipeline the script works just fine - also from my workstation im able to deploy the docker-compose project to my server.

Is the workstation the same as your Windows 2019 Server where the Bitbucket runner is running?

  • If not, can you copy the certificates on that server, then try running the Docker command you provided here on that server, and let me know if it works or if you get the same error?

  • Could you also please check if any Docker configuration files or any environment variables on this server have “localhost” configured on port 2375?

 

Kind regards,
Theodora

Hi @Theodora Boudale 

I tried with the same certificates on the server. It worked as intended. No Docker Host Env Vars so far.

It fails only when running the command inside windows runner

 

My config for docker deamon:

 

{
  "data-root": "D:\\Docker-Data",
  "tlscacert": "C:\\ProgramData\\docker\\certs.d\\ca.pem",
  "tlskey": "C:\\ProgramData\\docker\\certs.d\\server-key.pem",
  "tlscert": "C:\\ProgramData\\docker\\certs.d\\server-cert.pem",
  "hosts": [
    "tcp://0.0.0.0:2376",
    "npipe://"
  ],
  "tlsverify": true
}

 

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