Install Docker Engine on Ubuntu

pre-install

• sudo apt update
• sudo apt upgrade

ubuntu@ip-172-31-46-156:~/docker$ sudo apt install ca-certificates curl gnupg
ubuntu@ip-172-31-46-156:~/docker$ sudo install -m 0755 -d /etc/apt/keyrings
ubuntu@ip-172-31-46-156:~/docker$ sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
ubuntu@ip-172-31-46-156:~/docker$ sudo chmod a+r /etc/apt/keyrings/docker.asc
ubuntu@ip-172-31-46-156:~/docker$ sudo tee /etc/apt/sources.list.d/docker.sources <<EOF
> Types: deb
URIs: https://download.docker.com/linux/ubuntu
Suites: $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}")
Components: stable
Signed-By: /etc/apt/keyrings/docker.asc
EOF
Types: deb
URIs: https://download.docker.com/linux/ubuntu
Suites: noble
Components: stable
Signed-By: /etc/apt/keyrings/docker.asc
ubuntu@ip-172-31-46-156:~/docker$ sudo apt update

setup

• add docker group

ubuntu@ip-172-31-46-156:~/docker$ sudo usermod -aG docker ubuntu

• Reflect setup, and check

ubuntu@ip-172-31-46-156:~/docker$ newgrp docker
ubuntu@ip-172-31-46-156:~/docker$ groups
docker adm cdrom sudo dip lxd ubuntu

install docker-engine

ubuntu@ip-172-31-46-156:~/docker$ sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

version/service status

ubuntu@ip-172-31-46-156:~/docker$ docker --version
Docker version 29.0.2, build 8108357

ubuntu@ip-172-31-46-156:~/docker$ docker compose version
Docker Compose version v2.40.3

ubuntu@ip-172-31-46-156:~/docker$ sudo systemctl status docker
● docker.service - Docker Application Container Engine
     Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; preset: enabled)
     Active: active (running) since Wed 2025-11-19 01:21:53 UTC; 3min 23s ago
TriggeredBy: ● docker.socket

image download

tetsuohino@S5001536:~$ docker pull vulfocus/log4j2-rce-2021-12-09
tetsuohino@S5001536:~$ docker pull vulfocus/apache-cve_2021_41773

tetsuohino@S5001536:~$ docker images
                                                                                                                                                                                                                         i Info →   U  In Use
IMAGE                                   ID             DISK USAGE   CONTENT SIZE   EXTRA
vulfocus/apache-cve_2021_41773:latest   a4004ec041d0        404MB          111MB        
vulfocus/log4j2-rce-2021-12-09:latest   28c8e6f7d998        854MB          246MB