Install Docker

From here

1. Install and test

   ```bash sudo apt remove docker* podman-docker containerd runc

   sudo apt update sudo apt install -y 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

   echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

   sudo apt update sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

   sudo service docker start sudo docker run hello-world ```

2. Add current user to docker group

   bash sudo usermod -aG docker $USER

3. Login:

   bash docker login -u <username>

4. Restart or logout/login

Usage

docker pull alpine
docker run -it alpine /bin/sh
docker run -v /home/<username>/<path>/:/test -it alpine sh

docker pull ubuntu
docker run -it ubuntu bash

docker container ls -a
docker container rm <id>

docker image ls -a
docker image rm <id>
docker image rm -f <id>

docker login
docker commit <user/repo>
docker push <user/repo>
docker history --no-trunc <user/repo>

Make a fresh docker image

mkdir docker
cd docker
nano Dockerfile

FROM ubuntu:22.04

RUN apt update && apt install -y nginx 

LABEL maintainer="danb0b"
LABEL version="1.0"
LABEL description="A simple image running Nginx on Debain 10"

EXPOSE 80/tcp

CMD ["nginx","-g","daemon off;"]

docker build -t myapp:v1 .
docker run -p 80:80 myapp:v1