Rootless docker installation fails intermittently for Azure Ubuntu 18

Hi,

I'm following these steps to add rootless docker support for Azure Ubuntu18. 50% of time it works and 50% of time the rootless docker script fails with an error:

Cannot connect to the Docker daemon at unix:///run/user/1066/docker.sock. Is the docker daemon running?

Steps being followed:

export USERNAME="rootlessTemp"
export GROUPNAME="rootlessTemp"

sudo mkdir -p /home/$USERNAME/.local/share/docker
sudo mkdir -p /home/$USERNAME/.config/systemd/user

sudo groupadd -g 1066 $GROUPNAME
sudo adduser --system --home /home/$USERNAME --gid 1066 --uid 1066 --shell /bin/bash $USERNAME

sudo chown -R $GROUPNAME:$USERNAME /home/$USERNAME
sudo loginctl enable-linger $USERNAME

export XDG_RUNTIME_DIR=/run/user/1066
export HOME=/home/$USERNAME

curl -fsSL https://get.docker.com/rootless | sudo -E -u $USERNAME sh

export PATH=/home/$USERNAME/bin:$PATH
export DOCKER_HOST=unix://$XDG_RUNTIME_DIR/docker.sock

The same changes above works 100% of time for AWS and GCP Ubuntu 18. But fails some of the time on Azure.

Can someone please let me know what might be the issue?

Start by reproducing the rootless Docker installation on Azure Ubuntu 18 using the commands in the issue, focusing on the intermittent daemon connection failure at /run/user/1066/docker.sock. Done means identifying the Azure-specific cause and making the installation reliable, then verifying repeated runs complete successfully.