§2024-10-22

• Install Docker Engine on Ubuntu

• works on ubuntu 24.04, 2024-12-18

• run sudo installDockerEngine.sh and `usermod -aG docker alexlai, then relogin

#!/bin/bash

# https://docs.docker.com/engine/install/ubuntu/

# Run the following command to uninstall all conflicting packages
for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done

# Add Docker's official GPG key:
sudo apt-get update && \
sudo apt-get install ca-certificates curl && \
sudo install -m 0755 -d /etc/apt/keyrings && \
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc && \
sudo chmod a+r /etc/apt/keyrings/docker.asc 

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null && \
sudo apt-get update 

# tO install the latest version, run:
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

# add alexlai to docker group
sudo usermod -aG docker alexlai
# have to relogin to take into effect