How to Update Docker on Ubuntu 16.04

How to Update Docker on Ubuntu 16.04

If you are using Docker on your Ubuntu 16.04 system, it is important to keep it up to date to ensure you have the latest features and security patches. In this guide, we will walk you through the steps to update Docker on Ubuntu 16.04.

Step 1: Check Current Docker Version

Before updating Docker, it's a good idea to check the current version installed on your system. Open your terminal and run the following command:

$ docker version

This will display the Docker client and server versions installed.

Step 2: Update Docker

To update Docker, you will need to use the package manager called apt. Open your terminal and run the following command:

$ sudo apt update

This will update the package lists for upgrades and new package installations.

Next, you can upgrade Docker by running the following command:

$ sudo apt upgrade docker-ce

This will upgrade Docker to the latest version available in the Ubuntu repositories.

Step 3: Verify Docker Update

After the upgrade process completes, you can verify if Docker has been successfully updated. Run the following command:

$ docker version

This will display the updated Docker client and server versions.

Step 4: Restart Docker

Once Docker has been updated, it is recommended to restart the Docker service to apply any changes. Run the following command:

$ sudo systemctl restart docker

This will restart the Docker service on your Ubuntu 16.04 system.

Step 5: Clean Up

After updating Docker, you can remove any unused Docker images and containers to free up disk space. Run the following command:

$ docker system prune -a

This will remove all stopped containers, unused networks, and dangling images.

Congratulations! You have successfully updated Docker on your Ubuntu 16.04 system. You can now enjoy the latest features and security enhancements.