Here is how to install Docker on Rocky Linux 9 in 2026. Tested and verified.
Install Docker
sudo dnf config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo dnf install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
sudo systemctl start docker
sudo systemctl enable docker
sudo usermod -aG docker $USER
newgrp docker
# Verify
docker run hello-world
docker compose versionAlternative: Podman (Pre-installed)
Rocky Linux 9 comes with Podman pre-installed:
podman run hello-world
alias docker=podman