Feature request - Ubuntu:dind docker image

[g]

It would be super helpful to have an Ubuntu image for docker in docker as an alternative to the Alpine based docker:dind image.

[Philip Roche (philroche)]

Hi,

It is possible to use docker in docker with Ubuntu containers.

Start a docker container and map the docker unix socket

```
docker container run --interactive --volume /var/run/docker.sock:/var/run/docker.sock --tty --rm ubuntu:bionic /bin/bash
```

In container install docker.io

```
apt-get update && apt-get install --assume-yes docker.io
```

Start a new container inside this container

```
docker container run --interactive --tty --rm ubuntu:bionic /bin/bash
```

Is this helpful or are you looking for an easier way to do this without having to map unix sockets?

Phil

[g (wgordonw1)]

I am referring to docker in docker. It is helpful for testing systems (like when using gitlab runners).

Something along the lines of https://github.com/docker-library/docker/blob/eb305f71421bf772cfac2a46571280ff90f60033/19.03/docker-entrypoint.sh where they set the DOCKER_HOST='tcp://docker:2376' for using docker via the docker-dind image

[Philip Roche (philroche)]

@g Can you provide a reproducer script/steps on exact usage so we can replicate to better understand the request?