Learn how to - Install Docker and Docker Compose on Linux Mint 21

Learn how to – Install Docker and Docker Compose on Linux Mint 21.

How can I install Docker CE on Linux Mint 21?, How can I install Docker Compose on Linux Mint 21?. This guide will answer above questions by showing you a step by step installation of Docker and Docker Compose on Linux Mint.

Docker has been the defacto container engine since its arrival. It enables you to package and run your applications in isolated containers within a single host or cluster of Linux hosts.

Docker Engine is available in Community Edition (CE) and Enterprise Edition (EE). In this guide, we will do the installation of Docker Community Edition on Linux Mint using below steps.

Step 1: Install Dependency packages

Start the installation by ensuring that all the packages used by docker as dependencies are installed.

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

Step 2: Add Docker’s official GPG key

Import Docker GPG key used for signing Docker packages.

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

Step 3: Add the Docker repository

Add Docker upstream repository to your Linux Mint 21 so you can install the latest stable release of Docker.

echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu jammy stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

The command above will add a new line to additional repositories file.

$ cat /etc/apt/sources.list.d/docker.list
deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu jammy stable

Step 4: Install Docker Engine and Docker Compose

Update the apt package index.

$ sudo apt update
Hit:1 http://security.ubuntu.com/ubuntu jammy-security InRelease
Get:2 https://download.docker.com/linux/ubuntu jammy InRelease [48.9 kB]
Get:3 https://download.docker.com/linux/ubuntu jammy/stable amd64 Packages [7,756 B]
Hit:4 http://archive.ubuntu.com/ubuntu jammy InRelease
Ign:5 http://packages.linuxmint.com vanessa InRelease
Hit:6 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:7 http://packages.linuxmint.com vanessa Release
Hit:8 http://archive.ubuntu.com/ubuntu jammy-backports InRelease
Fetched 56.6 kB in 1s (112 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done

Then install the latest version of Docker CE and Docker Compose

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

The docker group is created but no users are added. Add your normal user to the group to run docker commands as non-privileged user.

sudo usermod -aG docker $USER
newgrp docker

Check the version of docker installed

$ docker version
Client: Docker Engine - Community
 Version:           20.10.19
 API version:       1.41
 Go version:        go1.18.7
 Git commit:        d85ef84
 Built:             Thu Oct 13 16:46:58 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.19
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.18.7
  Git commit:       c964641
  Built:            Thu Oct 13 16:44:47 2022
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.8
  GitCommit:        9cd3357b7fd7218e4aec3eae239db1f68a5a6ec6
 runc:
  Version:          1.1.4
  GitCommit:        v1.1.4-0-g5fd4c4d
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

Run a test docker container:

$ docker run --rm -it  --name test alpine:latest /bin/sh
Unable to find image 'alpine:latest' locally
latest: Pulling from library/alpine
213ec9aee27d: Pull complete
Digest: sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad
Status: Downloaded newer image for alpine:latest

 / # cat /etc/os-release 
 NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.16.2
PRETTY_NAME="Alpine Linux v3.16"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://gitlab.alpinelinux.org/alpine/aports/-/issues"

 / # exit
jkmutai@mint21:~$

Install Docker Compose on Linux Mint 21

On Linux Mint, Docker Compose can be installed with the following guide:

How To Install Docker Compose on Linux

You now have Docker Engine and Docker Compose installed on Linux Mint. Enjoy using containers to run your services.

Also relevant is Top command for container metrics

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Learn how to – Install Docker and Docker Compose on Linux Mint 21