--- - name: Bootstrap ArchLinux vars: bootstrap_archlinux_packages: >- {{ ( lookup('vars', bootstrap_var_key) | difference(bootstrap_guest_agent_remove_packages) ) + bootstrap_guest_agent_packages }} ansible.builtin.command: >- pacstrap /mnt {{ bootstrap_archlinux_packages | join(' ') }} --asexplicit register: bootstrap_result changed_when: bootstrap_result.rc == 0