Installing, Upgrading and Uninstalling Docker Engine from a Package

This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits. You have now successfully installed and started Docker Engine. {{% include "root-errors.md" %}} #### Upgrade Docker Engine To upgrade Docker Engine, follow step 2 of the [installation instructions](#install-using-the-repository), choosing the new version you want to install. ### Install from a package If you can't use Docker's `apt` repository to install Docker Engine, you can download the `deb` file for your release and install it manually. You need to download a new file each time you want to upgrade Docker Engine.  1. Go to [`{{% param "download-url-base" %}}/dists/`]({{% param "download-url-base" %}}/dists/). 2. Select your Ubuntu version in the list. 3. Go to `pool/stable/` and select the applicable architecture (`amd64`, `armhf`, `arm64`, or `s390x`). 4. Download the following `deb` files for the Docker Engine, CLI, containerd, and Docker Compose packages: - `containerd.io_<version>_<arch>.deb` - `docker-ce_<version>_<arch>.deb` - `docker-ce-cli_<version>_<arch>.deb` - `docker-buildx-plugin_<version>_<arch>.deb` - `docker-compose-plugin_<version>_<arch>.deb` 5. Install the `.deb` packages. Update the paths in the following example to where you downloaded the Docker packages. ```console $ sudo dpkg -i ./containerd.io_<version>_<arch>.deb \ ./docker-ce_<version>_<arch>.deb \ ./docker-ce-cli_<version>_<arch>.deb \ ./docker-buildx-plugin_<version>_<arch>.deb \ ./docker-compose-plugin_<version>_<arch>.deb ``` The Docker daemon starts automatically. 6. Verify that the installation is successful by running the `hello-world` image: ```console $ sudo service docker start $ sudo docker run hello-world ``` This command downloads a test image and runs it in a container. When the container runs, it prints a confirmation message and exits. You have now successfully installed and started Docker Engine. {{% include "root-errors.md" %}} #### Upgrade Docker Engine To upgrade Docker Engine, download the newer package files and repeat the [installation procedure](#install-from-a-package), pointing to the new files. {{% include "install-script.md" %}} ## Uninstall Docker Engine 1. Uninstall the Docker Engine, CLI, containerd, and Docker Compose packages: ```console $ sudo apt-get purge docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras ``` 2. Images, containers, volumes, or custom configuration files on your host aren't automatically removed. To delete all images, containers, and volumes: ```console $ sudo rm -rf /var/lib/docker $ sudo rm -rf /var/lib/containerd ``` 3. Remove source list and keyrings ```console $ sudo rm /etc/apt/sources.list.d/docker.list $ sudo rm /etc/apt/keyrings/docker.asc ``` You have to delete any edited configuration files manually. ## Next steps - Continue to [Post-installation steps for Linux](linux-postinstall.md).

This section details the process of installing Docker Engine from a downloaded package, upgrading Docker Engine using the same method, and completely uninstalling Docker Engine. It includes instructions for downloading the necessary .deb files, installing them using dpkg, and verifying the installation. For upgrades, it advises repeating the installation procedure with the newer package files. The uninstall process covers removing the Docker packages, deleting images, containers, and volumes, and removing source list and keyrings.