Docker in lxd 3


(ali) #1

Hi
Is docker unsecure yet in lxd version 3 ?


#2

I do not understand what you are trying to say.


(ali) #3

I mean, is it secure to run docker in lxd or similar to lxc I can’t do this in a secure way.

This is a rule that docker can not be launched in the container in a secure way?


#4

I just did the following in a Ubuntu 18.04.1 LXD container (LXD 3.7).

ubuntu@docker:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.1 LTS
Release:	18.04
Codename:	bionic
ubuntu@docker:~$ sudo docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
d1725b59e92d: Pull complete 
Digest: sha256:0add3ace90ecb4adbf7777e9aacf18357296e799f81cabc9fde470971e499788
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

ubuntu@docker:~$ 

In terms of security, I used the security.nesting flag which is OK.
I did not have to use the security.privileged flag.

If you are doing things in a different way, please write exactly what you are doing.