Docker is a new technology that allows development teams to build, manage, and secure apps anywhere. Docker is basically a container engine which uses the Linux Kernel features like namespaces and control groups to create containers on top of an operating system and automates application deployment on the container.

Here are my simplest steps to install Docker and Docker Compose into Ubuntu 18.04 and 16.04.

Install Docker and Compose into Ubuntu 18.04

Just one command:
snap install docker

root@ubuntu18-04-1:~# snap install docker
docker 18.09.9 from Canonical✓ installed

It will also install docker-compose. If your Ubuntu 18.04 notifies you do not have snap, you can install it with following command:
apt install snap

root@ubuntu18-04-1:~# docker version
 Version:           18.09.9
 API version:       1.39
 Go version:        go1.13.4
 Git commit:        1752eb3
 Built:             Sat Nov 16 01:05:26 2019
 OS/Arch:           linux/amd64
 Experimental:      false

  Version:          18.09.9
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.13.4
  Git commit:       9552f2b
  Built:            Sat Nov 16 01:07:48 2019
  OS/Arch:          linux/amd64
  Experimental:     false
root@ubuntu18-04-1:~# docker-compose version
docker-compose version 1.23.2, build unknown
docker-py version: 3.7.3
CPython version: 2.7.12
OpenSSL version: OpenSSL 1.0.2g  1 Mar 2016
root@ubuntu18-04-1:~# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete 
Digest: sha256:9572f7cdcee8591948c2963463447a53466950b3fc15a247fcad1917ca215a2f
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:

For more examples and ideas, visit:

root@ubuntu18-04-1:~# root@ubuntu18-04-1:~# docker image ls
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
hello-world         latest              fce289e99eb9        13 months ago       1.84kB

Install Docker and Compose into Ubuntu 16.04

For Ubuntu 16.04, you will need six commands to install Docker:

sudo apt update
sudo apt install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL | sudo apt-key add –
sudo add-apt-repository “deb [arch=amd64] $(lsb_release -cs) stable”
sudo apt update
sudo apt -y install docker-ce

For Docker-Compose, you will either using following command to take it longer :
apt install docker-compose

Or you can use following two commands to get it done faster:

curl -L “$(uname -s)-$(uname -m)” -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

You can test your first example docker hello-world with following command:
docker run hello-world
This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.

root@ubuntu16-04-1:~# docker --version
Docker version 18.09.9, build 1752eb3
root@ubuntu16-04-1:~# docker-compose --version
docker-compose version 1.23.2, build unknown

Docker Image : Speedtest-cli

You might need more memory when running this docker to test speed.

root@ubuntu18-04-1:~# docker run --rm moutten/speedtest-cli
Unable to find image 'moutten/speedtest-cli:latest' locally
latest: Pulling from moutten/speedtest-cli
3690ec4760f9: Pull complete 
8cf4eb2be1b3: Pull complete 
b30d63227d13: Pull complete 
6255aad43ec4: Pull complete 
Digest: sha256:feacde601da0c9e06989c900a21e86105c7af327382444b989eeb3a36c06865c
Status: Downloaded newer image for moutten/speedtest-cli:latest
Retrieving configuration...
Testing from Google Cloud (
Retrieving server list...
Selecting best server based on ping...
Hosted by Cox - Nova (Fairfax, VA) [21.49 km]: 35.428 ms
Testing download speed................................................................................
Download: 695.30 Mbit/s
Testing upload speedTraceback (most recent call last):
  File "/usr/local/bin/speedtest-cli", line 11, in <module>
  File "/usr/local/lib/python2.7/site-packages/", line 1400, in main
  File "/usr/local/lib/python2.7/site-packages/", line 1376, in shell
  File "/usr/local/lib/python2.7/site-packages/", line 1086, in upload
  File "/usr/local/lib/python2.7/site-packages/", line 497, in _create_data
    (chars * multiplier)[0:int(self.length) - 9]


Ubuntu Snap Command Usage Guide

root@ubuntu18-04-1:~# snap list
Name              Version    Rev   Tracking  Publisher          Notes
core              16-2.42.5  8268  stable    canonical✓         core
docker            18.09.9    423   stable    canonical✓         -
google-cloud-sdk  278.0.0    115   stable/…  google-cloud-sdk✓  classic
root@ubuntu18-04-1:~# snap refresh
google-cloud-sdk 279.0.0 from Cloud SDK (google-cloud-sdk✓) refreshed
root@ubuntu18-04-1:~# snap find nextcloud
Name                       Version                    Publisher         Notes  Summary
nextcloud                  16.0.7snap2                nextcloud✓        -      Nextcloud Server - A safe home for all your data
spreedme                   0.29.5snap1                nextcloud✓        -      Spreed.ME audio/video calls and conferences feature for the Nextcloud Snap
qownnotes                  20.2.2                     pbek              -      Plain-text file markdown note taking with Nextcloud / ownCloud integration
onlyoffice-desktopeditors  5.4.1                      onlyoffice✓       -      A comprehensive office suite for editing documents, spreadsheets and presentations
nextcloud-port8080         1.01                       arcticslyfox      -      Nextcloud Server
nextcloud-snap-abacao      11.0.3snap4                abacao            -      Nextcloud Server
nextcloud-nextant          11.0.0snap3                rmescandon        -      Nextcloud Server + search support
nextcloud-abacao           11.0.3snap4                abacao            -      Nextcloud Server
cashbox-nextcloud          11.0.2snap2                cashbox           -      Nextcloud Server for
nextcloudsnap              12.0.4snap1                oscarbrolin       -      Nextcloud Server - A safe home for all your data
ghostcloud                 0.9.5                      beidl             -      A modern cross-platform client for Nextcloud, ownCloud, WebDav.
htxucloud                  12.0.3snap7                htxu              -      Nextcloud Server
carnet                     0.18.7                     alexandre-roux-m  -      Powerful note taking app with sync, online editor and android app
opentodolist               3.18.0                     mhoeher           -      Todo list and note taking application
solr                       0.1                        rmescandon        -      Starts up solr as forking daemon
mdns-hostname              0.0.1                      welike            -      mDNS mini-daemon to published hostname.local
nextcloud-stondino         15.0.10snap3+git1.ff25cb9  zmusselman        -      Nextcloud Server - A safe home for all your data
vmcloud-nextcloud          1.0.0                      victoriususm      -      Nextcloud 16.0.3 Optimized-Boosted
feedreader                 0+git.9ac478f7             ken-vandine       -      RSS client for various webservices
test003-nc                 13.0.4.snap1               reinism           -      Nextcloud Server - A safe home for all your data
root@ubuntu18-04-1:~# snap remove hello-world


By Jonny

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