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# Install Docker-ce
How do I install Docker CE on Debian 11/10?, How can I install Docker Compose on Debian 11/10 Linux system?. In this guide, I'll discuss a step by step installation of Docker and Docker Compose on Debian 11/10.
Docker is the most popular and widely used container runtime. It enables you to package and run your applications in isolated containers in a single server or cluster of Linux servers orchestrated by Kubernetes and similar tools.
## Docker Editions
There are two editions of Docker available.
- **Community Edition (CE)**: ideal for individual developers and small teams looking to get started with Docker and experimenting with container-based apps.
- **Enterprise Edition (EE)**: Designed for enterprise development and IT teams who build, ship, and run business-critical applications in production at scale.
This guide will cover installation of Docker CE on Debian 10 / Debian 11 Linux. But let's first look at common docker terminologies.
## Docker Components / Terminologies
Below are commonly used terminologies in Docker ecosystem.
- **Docker daemon**: This is also called Docker Engine, it is a background process which runs on the host system responsible for building and running of containers.
- **Docker Client**: This is a command line tool used by the user to interact with the Docker daemon.
- **Docker Image**: An image is an immutable file that's essentially a snapshot of a container. A docker image has a file system and application dependencies required for running applications.
- **Docker container**: This is a running instance of a docker image with an application and its dependencies. Each container has a unique process ID and isolated from other containers. The only thing containers share is the Kernel.
- **Docker registry**: This is an application responsible for managing storage and delivery of Docker container images. It can be private or public.
# Install Docker CE on Debian 11 (Bullseye) / Debian 10 (Buster)
Follow the steps covered in the next parts of this article to install and use Docker CE on Debian 11/10.
## 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 gnupg2 software-properties-common
```
## Step 2: Add Docker's official GPG key:
Import Docker GPG key used for signing Docker packages.
```
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/docker-archive-keyring.gpg
```
## Step 3: Add the Docker repository to Debian 10 / Debian 11
Add Docker repository which contain the latest stable releases of Docker CE.
```
sudo add-apt-repository\
"deb [arch=amd64] https://download.docker.com/linux/debian\
$(lsb_release -cs)\
stable"
```
This command will add the line shown in `/etc/apt/sources.list` file.
## Step 4: Install Docker & Docker Compose on Debian 11/10
Update the `apt` package index.
```
sudo apt update
```
To install Docker CE on Debian, run the command:
```
sudo apt install docker-ce docker-ce-cli containerd.io -y
```
Start and enable docker service:
```
sudo systemctl enable --now docker
```
This installation will add `docker` group to the system without any users. Add your user account to the group to run docker commands as non-privileged user.
```
sudo usermod -aG docker $USER
newgrp docker
```
Check docker and compose version.
```
$ docker version
Client: Docker Engine - Community
Version: 20.10.17
API version: 1.41
Go version: go1.17.11
Git commit: 100c701
Built: Mon Jun 6 23:03:17 2022
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.17
API version: 1.41 (minimum version 1.12)
Go version: go1.17.11
Git commit: a89b842
Built: Mon Jun 6 23:01:23 2022
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.6.6
GitCommit: 10c12954828e7c7c9b6e0ea9b0c02b01407d3ae1
runc:
Version: 1.1.2
GitCommit: v1.1.2-0-ga916309
docker-init:
Version: 0.19.0
GitCommit: de40ad0
```
Log out and log back in so that your group membership is re-evaluated.
```
exit
```
### Install Docker Compose on Debian
Use the guide below to install latest Docker Compose on Debian 10 / Debian 11
- [How To Install Latest Docker Compose on Linux](https://computingforgeeks.com/how-to-install-latest-docker-compose-on-linux/)
## Step 5: Test Docker installation
Run a test docker container:
```
$ docker run --rm -it --name test alpine:latest /bin/sh
latest: Pulling from library/alpine
2408cc74d12b: Pull complete
Digest: sha256:686d8c9dfa6f3ccfc8230bc3178d23f84eeaf7e457f36f271ab1acc53015037c
Status: Downloaded newer image for alpine:latest
/ # cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.16.0
PRETTY_NAME="Alpine Linux v3.16"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://gitlab.alpinelinux.org/alpine/aports/-/issues"
/ # exit
```
## Step 6: Test Docker Compose installation.
Create a test Docker Compose file.
```
vim docker-compose.yml
```
Add below data to the file.
```
version: '3'
services:
web:
image: nginx:latest
ports:
- "8080:80"
links:
- php
php:
image: php:7-fpm
```
Start service containers.
```
$ docker-compose up -d
```
Output:
![docker compose start containers](https://computingforgeeks.com/wp-content/uploads/2019/03/docker-compose-start-containers.png?ezimgfmt=rs:696x404/rscb23/ng:webp/ngcb23)
Show running Containers
```
$ docker-compose ps
```
Destroy containers
````
$ docker-compose stop
$ docker-compose rm
Going to remove vagrant_web_1, vagrant_php_1
Are you sure? [yN] y
Removing vagrant_web_1 ... done
Removing vagrant_php_1 ... done
```wg-easy
-------
> [!INFO] You can try it after the successful installation of docker
````
docker run -d\
--name=wg-easy\
-e WG*HOST=***89.43.107.97**_\
-e PASSWORD= _**DeinPasswort**\_\
-v ~/.wg-easy:/etc/wireguard\
-p 51820:51820/udp\
-p 51821:51821/tcp\
--cap-add=NET_ADMIN\
--cap-add=SYS_MODULE\
--sysctl="net.ipv4.conf.all.src_valid_mark=1"\
--sysctl="net.ipv4.ip_forward=1"\
--restart unless-stopped\
weejewel/wg-easy
```
You have successfully installed Docker on Debian 10 / Debian 11 Linux. Go through Official[ Docker documentation](https://docs.docker.com/) and [Docker Compose documentation](https://docs.docker.com/compose/) to learn more.
Setup Docker UI (Optional)
--------------------------
If you need a UI management console for Docker hosts and containers, checkout Portainer.
- [How to Install Portainer Docker UI manager](https://computingforgeeks.com/install-docker-ui-manager-portainer/)
Monitoring Docker containers
----------------------------
Monitoring Docker containers can be achieved by using Monitoring tools such as [Netdata, Prometheus and Grafana](https://computingforgeeks.com/category/monitoring/). Below guide should also be helpful [Check Container container metrics with Ctop.](https://computingforgeeks.com/top-command-for-container-metrics/)
### Best Docker Learning Courses:
- [Docker Mastery: with Kubernetes +Swarm from a Docker Captain](https://click.linksynergy.com/deeplink?id=2sb89XJC/EQ&mid=39197&murl=https%3A%2F%2Fwww.udemy.com%2Fcourse%2Fdocker-mastery%2F)
- [Docker for the Absolute Beginner -- Hands On -- DevOps](https://click.linksynergy.com/deeplink?id=2sb89XJC/EQ&mid=39197&murl=https%3A%2F%2Fwww.udemy.com%2Fcourse%2Flearn-docker%2F)
- [Docker and Kubernetes: The Complete Guide](https://click.linksynergy.com/deeplink?id=2sb89XJC/EQ&mid=39197&murl=https%3A%2F%2Fwww.udemy.com%2Fcourse%2Fdocker-and-kubernetes-the-complete-guide%2F)
- [Docker -- SWARM -- Hands-on -- DevOps](https://click.linksynergy.com/deeplink?id=2sb89XJC/EQ&mid=39197&murl=https%3A%2F%2Fwww.udemy.com%2Fcourse%2Flearn-docker-advanced%2F)
- [Docker Swarm Mastery: DevOps Style Cluster Orchestration](https://click.linksynergy.com/deeplink?id=2sb89XJC/EQ&mid=39197&murl=https%3A%2F%2Fwww.udemy.com%2Fcourse%2Fdocker-swarm-mastery%2F)
```