Combine playbooks for indiviual hosts into one playbook

This makes a full deployment of all hosts easier and parallelises
execution of roles, which are used for multiple hosts.
You can still easily deploy only a subset of hosts using the -l flag for
ansible-playbook.

playbooks/deploy_dokuwiki.yaml

@@ -1,38 +0,0 @@
----
-- name: Configure wiki.z9 with dokuwiki
-  hosts: wiki
-  roles:
-    - nginx
-    - cert
-  tasks:
-    # TODO: make this a role
-    - name: Install php-fpm
-      ansible.builtin.apt:
-        name:
-          - php-fpm
-          - php-xml
-          - php-mbstring
-          - php-zip
-          - php-intl
-          - php-gd
-      diff: false
-    - name: Make sure php-fpm is enabled
-      ansible.builtin.systemd:
-        service: php7.4-fpm.service
-        enabled: true
-
-    # place dokuwiki zip into /var/www/dokuwiki manually!
-    - name: Create www dir
-      become: true
-      ansible.builtin.file:
-        path: /var/www
-        state: directory
-        owner: nginx
-        group: nginx
-        mode: "0755"
-    - name: Custom php-fpm config
-      become: true
-      ansible.builtin.copy:
-        src: configs/wiki/php-fpm-dokuwiki.conf
-        dest: /etc/php/7.4/fpm/pool.d/dokuwiki.conf
-        mode: "0755"