Running docker within lxd with overlay2 backend
This is a sketch, to be edited...
ayourtch@ayourtch-x280:~$ lxc profile show nesting
config:
security.nesting: "true"
security.privileged: "true"
security.syscalls.intercept.mknod: "true"
security.syscalls.intercept.setxattr: "true"
description: ""
devices: {}
name: nesting
used_by:
- /1.0/instances/docker-test
- /1.0/instances/vpp-relops
This profile should be applied to the lxd container running docker
Then inside the container install
sudo apt-get install fuse-overlayfs
Then the standard docker installation as per https://docs.docker.com/engine/install/ubuntu/ ;
then change the driver to overlay2 as per https://docs.docker.com/storage/storagedriver/overlayfs-driver/ - which is:
1. sudo systemctl stop docker
2. cp -au /var/lib/docker /var/lib/docker.bk
3. edit /etc/docker/daemon.json to be:
{
"storage-driver": "overlay2"
}
4. sudo systemctl start docker
Index of /blog/2022-03-31-Running-docker-within-lxd-with-overlay2-backend/