Installing Docker

Use the official Docker repository rather than distro packages, since Docker's own repo tends to ship newer engine versions with the security fixes you actually want.

dnf config-manager --add-repo https://download.docker.com/linux/rhel/docker-ce.repo
dnf install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
systemctl enable --now docker

Add your deploy user to the docker group rather than running everything as root — usermod -aG docker deploy. Log out and back in for it to take effect.