Setup steps for Nomad + others on Ubuntu server 20.04

# Setup for Ubuntu 20.04
# ======================

# Install Nomad, Consul, Docker
# -----------------------------

# GPG keys for Nomad and Docker.
curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo apt-key add -
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

# Repos for Nomad and Docker.
sudo apt-add-repository "deb [arch=amd64] https://apt.releases.hashicorp.com $(lsb_release -cs) main"
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

# Install Nomad, Consul, Docker.
sudo apt install docker-ce docker-ce-cli containerd.io
sudo apt install nomad consul

This worked for me as of February 2022.