Move archive.archlinux.org to gemini

In preparation of the move to gemini make it already run the
archive.archlinux.org frontend and the archive-uploader. So the
migration is done in steps.

host_vars/gemini.archlinux.org

@@ -16,5 +16,8 @@ system_disks:
   - /dev/sdd
 raid_level: "raid6"
 
+archive_domain: archive.archlinux.org
+archive_nginx_only: true
+
 zabbix_agent_templates:
   - Template OS Linux

playbooks/gemini.archlinux.org.yml

@@ -10,3 +10,8 @@
     - { role: sshd }
     - { role: root_ssh }
     - { role: borg-client, tags: ['borg'] }
+    - { role: sudo, tags: ['archusers'] }
+    - { role: zabbix-agent }
+    - { role: certbot }
+    - { role: nginx }
+    - { role: archive }

roles/archive/defaults/main.yml

@@ -4,4 +4,5 @@ archive_user_name: 'archive'
 archive_user_home: '/home/archive'
 archive_repo: '{{ archive_user_home }}/archive-uploader'
 archive_uploader_version: 'v0.15.3'
+archive_dir: '/srv/archive'
 archive_nginx_only: false

roles/archive/tasks/main.yml

@@ -50,30 +50,25 @@
 
 - name: install internet archive packages
   pacman: name=python-internetarchive state=present
-  when: not archive_nginx_only
 
 - name: create archive user
   user: name={{ archive_user_name }} shell=/bin/false home="{{ archive_user_home }}" createhome=yes
-  when: not archive_nginx_only
 
 - name: configure archive.org client
   command: ia configure --username={{ vault_archive_username }} --password={{ vault_archive_password }} creates={{ archive_user_home }}/.config/ia.ini
   become: yes
   become_user: "{{ archive_user_name }}"
-  when: not archive_nginx_only
 
 - name: clone archive uploader code
   git: repo=https://github.com/archlinux/arch-historical-archive.git dest="{{ archive_repo }}" version="{{ archive_uploader_version }}"
   become: yes
   become_user: "{{ archive_user_name }}"
-  when: not archive_nginx_only
 
 - name: install system service
   template: src={{ item }} dest=/etc/systemd/system/{{ item }} owner=root group=root mode=0644
   loop:
     - archive-uploader.service
     - archive-uploader.timer
-  when: not archive_nginx_only
 
 - name: start uploader timer
   systemd: