Can't connect to docker from WSL - docker

Question

I have checked the option Expose the daemon on tcp... in docker on windows, and am now trying to connect from WSL. I have run all those commands:
# Update the apt package list.
sudo apt-get update -y
# Install Docker's package dependencies.
sudo apt-get install -y \
apt-transport-https \
ca-certificates \
curl \
software-properties-common
# Download and add Docker's official public PGP key.
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
# Verify the fingerprint.
sudo apt-key fingerprint 0EBFCD88
# Add the `stable` channel's Docker upstream repository.
#
# If you want to live on the edge, you can change "stable" below to "test" or
# "nightly". I highly recommend sticking with stable!
sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"
# Update the apt package list (for the new apt repo).
sudo apt-get update -y
# Install the latest version of Docker CE.
sudo apt-get install -y docker-ce
# Allow your user to access the Docker CLI without needing root access.
sudo usermod -aG docker $USER
echo "export DOCKER_HOST=tcp://localhost:2375" >> ~/.bashrc && source ~/.bashrc
However, docker info only gives me:
Client:
Debug Mode: false
Server:
ERROR: Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?
errors pretty printing info
What might be wrong? I have been trying this all day. I am running WSL and Ubuntu 18.04, not WSL 2, as the update that brings WSL 2 doesn't seem to be avaible yet without an insider build.

Answer 1

if you run env | sort do you see the DOCKER_HOST=tcp://localhost:2375 variable? if not you may need to run source ~/.bashrc to load the new environment variable into the current console.
Alternatively start a new terminal instance.
Also and this may seem like a daft question but i have to ask, is docker running correctly? from powershell if you run docker info does it return the status of the docker server?