Replace the hostname variable with the magic inventory_hostname variable

host_vars/america.mirror.pkgbuild.com/misc.yml

host_vars/archive.archlinux.org/misc.yml

host_vars/asia.mirror.pkgbuild.com/misc.yml

host_vars/build.archlinux.org/misc.yml

host_vars/europe.mirror.pkgbuild.com/misc.yml

host_vars/gitlab.archlinux.org/misc.yml

host_vars/london.mirror.pkgbuild.com/misc.yml

host_vars/packer-base-image

host_vars/repos.archlinux.org/misc.yml

host_vars/repro2.pkgbuild.com/misc.yml

host_vars/repro3.pkgbuild.com/misc.yml

host_vars/runner1.archlinux.org/misc.yml

host_vars/runner3.archlinux.org/misc.yml

host_vars/secure-runner1.archlinux.org/misc.yml

host_vars/sydney.mirror.pkgbuild.com/misc.yml

roles/install_arch/tasks/main.yml