How TO Install Docker On Ubuntu 18.04/16.04

How To Install Docker In Ubuntu Linux 14.04, 16.04 And 18.04

I'm going to show you how to install and run Docker in Ubuntu Linux

First update source-list

sudo apt update

Install required dependencies..

sudo apt install apt-transport-https ca-certificates curl software-properties-common

Then.. Add docker's official GPG key with following command..

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

The above commands output will looks like..

shivaraj@shivaraj-Aspire-A315-21:~$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - OK shivaraj@shivaraj-Aspire-A315-21:~$

Now add Docker Community Edition's repository to list..

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

shivaraj@shivaraj-Aspire-A315-21:~$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" Ign:1 http://dl.google.com/linux/chrome/deb stable InRelease Hit:2 http://packages.microsoft.com/repos/vscode stable InRelease Ign:3 https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 InRelease Get:4 https://download.docker.com/linux/ubuntu bionic InRelease [64.4 kB] Hit:5 http://dl.google.com/linux/chrome/deb stable Release Hit:6 http://in.archive.ubuntu.com/ubuntu bionic InRelease Hit:7 https://deb.opera.com/opera-stable stable InRelease Get:8 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB] Get:9 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB] Hit:10 http://archive.canonical.com/ubuntu bionic InRelease Hit:11 http://linux.teamviewer.com/deb stable InRelease Hit:12 http://linux.teamviewer.com/deb preview InRelease Hit:13 https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 Release Hit:15 https://repo.skype.com/deb stable InRelease Get:16 http://in.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB] Get:17 https://download.docker.com/linux/ubuntu bionic/stable amd64 Packages [1,708 B] Hit:18 https://download.sublimetext.com apt/stable/ InRelease Fetched 313 kB in 2s (128 kB/s) Reading package lists... Done shivaraj@shivaraj-Aspire-A315-21:~$

Now update the package index once again..

sudo apt update

Now Install the docker..

sudo apt install docker-ce

shivaraj@shivaraj-Aspire-A315-21:~$ sudo apt install docker-ce Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: aufs-tools cgroupfs-mount pigz The following NEW packages will be installed: aufs-tools cgroupfs-mount docker-ce pigz 0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded. Need to get 40.4 MB of archives. After this operation, 198 MB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 https://download.docker.com/linux/ubuntu bionic/stable amd64 docker-ce amd64 18.06.1~ce~3-0~ubuntu [40.2 MB] Get:2 http://in.archive.ubuntu.com/ubuntu bionic/universe amd64 pigz amd64 2.4-1 [57.4 kB] Get:3 http://in.archive.ubuntu.com/ubuntu bionic/universe amd64 aufs-tools amd64 1:4.9+20170918-1ubuntu1 [104 kB] Get:4 http://in.archive.ubuntu.com/ubuntu bionic/universe amd64 cgroupfs-mount all 1.4 [6,320 B] Fetched 40.4 MB in 12s (3,510 kB/s) Selecting previously unselected package pigz. (Reading database ... 273749 files and directories currently installed.) Preparing to unpack .../archives/pigz_2.4-1_amd64.deb ... Unpacking pigz (2.4-1) ... Selecting previously unselected package aufs-tools. Preparing to unpack .../aufs-tools_1%3a4.9+20170918-1ubuntu1_amd64.deb ... Unpacking aufs-tools (1:4.9+20170918-1ubuntu1) ... Selecting previously unselected package cgroupfs-mount. Preparing to unpack .../cgroupfs-mount_1.4_all.deb ... Unpacking cgroupfs-mount (1.4) ... Selecting previously unselected package docker-ce. Preparing to unpack .../docker-ce_18.06.1~ce~3-0~ubuntu_amd64.deb ... Unpacking docker-ce (18.06.1~ce~3-0~ubuntu) ... Setting up aufs-tools (1:4.9+20170918-1ubuntu1) ... Setting up docker-ce (18.06.1~ce~3-0~ubuntu) ... Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /lib/systemd/system/docker.service. Created symlink /etc/systemd/system/sockets.target.wants/docker.socket → /lib/systemd/system/docker.socket. Processing triggers for ureadahead (0.100.0-20) ... ureadahead will be reprofiled on next reboot Setting up cgroupfs-mount (1.4) ... Processing triggers for libc-bin (2.27-3ubuntu1) ... Processing triggers for systemd (237-3ubuntu10.3) ... Processing triggers for man-db (2.8.3-2) ... Setting up pigz (2.4-1) ... Processing triggers for ureadahead (0.100.0-20) ... shivaraj@shivaraj-Aspire-A315-21:~$

The Docker daemon starts automatically.

Verify the installation.. with the following command...

sudo docker run hello-world

shivaraj@shivaraj-Aspire-A315-21:~$ sudo docker run hello-world Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world 9db2ca6ccae0: Pull complete Digest: sha256:4b8ff392a12ed9ea17784bd3c9a8b1fa3299cac44aca35a85c90c5e3c7afacdc 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. (amd64) 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: https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/engine/userguide/ shivaraj@shivaraj-Aspire-A315-21:~$

Here is the video version of above tutorial..

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