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How to install docker on Ubuntu 19.04

Dec 13, 2019 · 4 mins read · Post a comment
How to install docker on Ubuntu 19.04

Following the steps below will let you realize that installing docker on Ubuntu 19.04 is not that hard as it seems, so let’s see how you can do it.

Prerequisites

  • Ubuntu 19.04

Install Docker

As a first step you need to update the system packages:

sudo apt-get update

If there are some packages installed you can get rid of them with:

sudo apt remove docker docker-engine docker.io containerd runc

You need to import repository gpg key:

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

Now we will add the Docker CE repository to Ubuntu:

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

To install Docker CE on Ubuntu 19.04 run:

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

You can verify the installation with:

sudo docker version

You should get similar output like this:

Client: Docker Engine - Community
 Version:           19.03.5
 API version:       1.40
 Go version:        go1.12.12
 Git commit:        633a0ea838
 Built:             Wed Nov 13 07:29:52 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          19.03.5
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.12.12
  Git commit:       633a0ea838
  Built:            Wed Nov 13 07:28:22 2019
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.2.10
  GitCommit:        b34a5c8af56e510852c35414db4c1f4fa6172339
 runc:
  Version:          1.0.0-rc8+dev
  GitCommit:        3e425f80a8c931f88e6d94a8c831b9d5aa481657
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683

We can also check if the docker daemon is started with the following command:

sudo systemctl status docker

The output should look like:

 docker.service - Docker Application Container Engine
   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2019-12-13 23:27:50 CET; 9min ago
     Docs: https://docs.docker.com
 Main PID: 9941 (dockerd)
    Tasks: 13
   CGroup: /system.slice/docker.service
           └─9941 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Docker command

If you want to check all available subcommands, run:

sudo docker

Output:

Commands:
  attach      Attach local standard input, output, and error streams to a running container
  build       Build an image from a Dockerfile
  commit      Create a new image from a container's changes
  cp          Copy files/folders between a container and the local filesystem
  create      Create a new container
  diff        Inspect changes to files or directories on a container's filesystem
  events      Get real time events from the server
  exec        Run a command in a running container
  export      Export a container's filesystem as a tar archive
  history     Show the history of an image
  images      List images
  import      Import the contents from a tarball to create a filesystem image
  info        Display system-wide information
  inspect     Return low-level information on Docker objects
  kill        Kill one or more running containers
  load        Load an image from a tar archive or STDIN
  login       Log in to a Docker registry
  logout      Log out from a Docker registry
  logs        Fetch the logs of a container
  pause       Pause all processes within one or more containers
  port        List port mappings or a specific mapping for the container
  ps          List containers
  pull        Pull an image or a repository from a registry
  push        Push an image or a repository to a registry
  rename      Rename a container
  restart     Restart one or more containers
  rm          Remove one or more containers
  rmi         Remove one or more images
  run         Run a command in a new container
  save        Save one or more images to a tar archive (streamed to STDOUT by default)
  search      Search the Docker Hub for images
  start       Start one or more stopped containers
  stats       Display a live stream of container(s) resource usage statistics
  stop        Stop one or more running containers
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  top         Display the running processes of a container
  unpause     Unpause all processes within one or more containers
  update      Update configuration of one or more containers
  version     Show the Docker version information
  wait        Block until one or more containers stop, then print their exit codes

Also, if you want to check the system information about Docker, run:

sudo docker info

To check only the space available for the docker containers on your machine execute:

sudo docker info | grep "Data Space"

Conclusion

In this tutorial we shown you how to install docker on Ubuntu 19.04 and if you have some further questions please put a comment in the box below. Feel free to leave a comment below and if you find this tutorial useful, follow our official channel on telegram.