docker-engine.md
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Carlo Guarnieri Calo' Carducci authoredCarlo Guarnieri Calo' Carducci authored
Docker Engine
Open-source project that automates the deployment of applications inside software containers, by providing an additional layer of abstraction and automation of operating-system-level virtualization on Linux, Mac OS and Windows.
Set up the repository
Update the apt package index and install packages to allow apt to use a repository over HTTPS.
sudo apt-get update
sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg \
lsb-release
Add Docker’s official GPG key.
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
Use the following command to set up the stable repository.
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
Install
Update the apt package index, and install the latest version of Docker Engine and containerd, or go to the next step to install a specific version:
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
Verify that Docker Engine is installed correctly by running the hello-world image.
sudo docker run hello-world
This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.