Debian Docker installation tutorial

docker-installation.md

Debian Docker installation tutorial

https://docs.docker.com/engine/install/debian/

1. Remove old docker, update and install requirements

   sudo apt-get remove docker docker-engine docker.io containerd runc
   sudo apt-get update
   sudo apt-get install \
       apt-transport-https \
       ca-certificates \
       curl \
       gnupg-agent \
       software-properties-common
   

2. Download public-key for official docker repository and add it to system

   curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
   sudo apt-key fingerprint 0EBFCD88
   Should be: 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
   

3. Add official docker repository

   sudo add-apt-repository \
      "deb [arch=amd64] https://download.docker.com/linux/debian \
      $(lsb_release -cs) \
      stable"
   

4. Update again (due to the new repository) and install docker

   sudo apt-get update
   sudo apt-get install docker-ce docker-ce-cli containerd.io
   

5. Change default IP range for docker containers, since it is 172.17.0.0/16 by default :-) https://support.hyperglance.com/knowledge/changing-the-default-docker-subnet

   sudo nano /etc/docker/daemon.json
   {
   "log-driver": "journald",
   "log-opts": {
   "tag": "{{.Name}}"
   },
   "bip": "10.0.0.1/16",
   "default-address-pools":[
   {"base":"10.1.0.0/16","size":16}
   ]
   }
   

   sudo systemctl restart docker
   ip addr
   

6. Add user to docker group to allow docker without sudo

   sudo usermod -aG docker $USER
   

Install docker-compose

⚠️ There is no deb-package for docker-compose in the official docker repository added above. So don't use apt-get install!

Install docker-compose by this tutorial: https://docs.docker.com/compose/install/

Docker beginners tutorial

https://github.com/docker/labs/blob/master/beginner/chapters/alpine.md

docker pull debian:buster
docker images