Developing in Docker speeds up applications, as it shares the kernel and other resources, instead of requiring dedicated server resources.

There are two versions of Docker Docker CE (Community Edition) and Docker EE (Enterprise Edition).

If you have a small-scale project, or youre just learning, you will want to use Docker CE.

In this tutorial, learn how to install Docker on Ubuntu 18.04.

Docker 18.0.4 Update The Local

Prerequisites Ubuntu 18.04 64-bit operating system A user account with sudo privileges Command-lineterminal ( CTRL-ALT-T or Applications menu Accessories Terminal ) Docker software repositories (optional) Outlet Dedicated Servers Starting at Only 30.00mo CONFIGURE NOW Install Docker on Ubuntu Using Default Repositories Step 1: Update Software Repositories Its a good idea to update the local database of software to make sure youve got access to the latest revisions.

Open a terminal window and type: sudo apt-get update Allow the operation to complete.

Step 2: Uninstall Old Versions of Docker Next, its recommended to uninstall any old Docker software before proceeding.

To do so, type in each command followed by enter: sudo systemctl start docker sudo systemctl enable docker Step 5 (Optional): Check Docker Version To verify the installed Docker version number, enter: docker --version Note: The official Docker website does not offer support for Ubuntu 18.04.

Its possible that the Ubuntu default repositories have not updated to the latest revision.

However, if you are up for a slightly more intensive operation, you can install a more recent (or specific) Docker from the official Docker repositories.

To ensure that the software youre installing is authentic, enter: curl -fsSL sudo apt-key add Step 4: Install the Docker Repository To install the Docker repository, enter the command: sudo add-apt-repository deb archamd64 (lsbrelease -cs) stable The command (lsbrelease cs ) scans and returns the codename of your Ubuntu installation in this case, Bionic.

Also, the final word of the command stable is the type of Docker release.

A stable release is tested and confirmed to work, but updates are released less frequently.

You may substitute edge if youd like more frequent updates, at the cost of potential instability.

There are other repositories, but they are riskier more info can be found on the Docker web page.

High-Performance Dedicated Servers Starting at Only 199.00 90.00 mo CONFIGURE NOW Step 5: Update Repositories Update the repositories you just added: sudo apt-get update Step 6: Install Latest Version of Docker To install the latest version of docker: sudo apt-get install docker-ce Step 7 (Optional): Install Specific Version of Docker List the available versions of Docker by entering the following in a terminal window: apt-cache madison docker-ce The system should return a list of available versions as in the image above.

At this point, type the command: sudo apt-get install docker-ce However, substitute for the version you want to install (pulled from the list you just generated).

For example: Step 8 (Optional): Install from a.deb Package First, open a web browser, and go to the following web address: Next, click on the pool link, then stable, then amd64.

This is the location of the stable Docker releases for Ubuntu 18.04.

At the time this article was written, this directory was empty.

This indicates that there are no verified stable releases for Ubuntu 18.04.

Not to worry, though The previous versions should work just fine.

Docker 18.0.4 Download The File

Alternatively, you can install an edge release by browsing to: Download the file, and make a note of the path where you saved it.

Use the following command: sudo dpkg -i pathtopackage.deb Substitute your file location for pathtopackage.deb.

Allow the installer to run.

Conclusion Great job Youve got three (3) different options for installing Docker on Ubuntu 18.04.

Finally, you can check the Docker guides if you get into trouble, plus they have a fairly robust forum you can search.

Happy developing Next, You Should Also Read: How To Install Docker on Centos 8 How To Install Docker On Debian 10 Buster How to Install Docker on Ubuntu 20.04 How to Manager Docker Containers, Best Practices Containers versus Virtual Machines (VMs): The Differences Author Sofija Simic Sofija Simic is an aspiring Technical Writer at phoenixNAP.

Alongside her educational background in teaching and writing, she has had a lifelong passion for information technology.

Docker 18.0.4 For Mac