How do I run docker inside a function?

[mrunmayi]

My actions before raising this issue

• Followed the troubleshooting guide verified issue not mentioned in troubleshooting guide
• Read/searched the docs already read the docs
• Searched past issues : yes I searched past issues and could not find similar issue.

Expected Behaviour

There are currently 3 ways to run docker inside docker (https://devopscube.com/run-docker-in-docker/)

• By mounting docker.sock: As faas does container management we are unable to mount the docker in the existing containers that faas-deploy created. we could not find any such option to mount a socket
• By using dind which needs privileged mode to containers. I saw in few of the issues (Feature: add privileged supported in function #1238) its mentioned that openfaas do not plan to support privileged mode to containers
• By Sysbox : I coud not find any documentation around it ini openfaas.

we should be allowed to docker command like docker build inside the docker container

Current Behaviour

currently we do not have any way or much documentation around how to run docker commands inside faas manages containers

Are you a GitHub Sponsor (Yes/No?) : no

Check at: https://github.com/sponsors/openfaas

• Yes
• No

List All Possible Solutions and Workarounds

Which Solution Do You Recommend?

Steps to Reproduce (for bugs)

1. build an image
2. use faas-cli deploy to deploy the image
3. login into the container / try to run docker command
4. it fails

Context

We have a cli micro-service which is running using openfaas. This service try to build docker images and deploy the images for other product components

Your Environment

• FaaS-CLI version ( Full output from: faas-cli version ):

• Docker version docker version (e.g. Docker 17.0.05 ):

• Are you using OpenFaaS on Kubernetes or faasd?

• Operating System and version (e.g. Linux, Windows, MacOS):

• Code example or link to GitHub repo or gist to reproduce problem:

• Other diagnostic information / logs from troubleshooting guide

[alexellis]

@mrunmayi

Thanks for your interest, however it's unclear what you're trying to do and why.

Please take a few steps back and explain why you want to use docker in a container.

[alexellis]

/add label: support,question

[alexellis]

Closing since we didn't hear back from you.

Feel free to send another comment here if you want to continue the discussion.