z9(hosts): setup ansible-pull for all z9 hosts

inventories/z9/group_vars/all.yaml

@@ -1,3 +1,20 @@
+# ansible_pull
+# ansible_pull__age_private_key needs to be defined per host (probably HOST.sops.yaml).
+ansible_pull__repo_url: https://git.hamburg.ccc.de/CCCHH/ansible-infra.git
+ansible_pull__inventory: inventories/z9
+ansible_pull__playbook: playbooks/maintenance.yaml
+ansible_pull__timer_on_calendar: "*-*-* 07:00:00 Europe/Berlin"
+ansible_pull__failure_notification_address: noc-notifications@lists.hamburg.ccc.de
+ansible_pull__timer_randomized_delay_sec: 30min
+
+# msmtp
+# msmtp__smtp_password is defined in the all.sops.yaml.
+msmtp__smtp_host: cow.hamburg.ccc.de
+msmtp__smtp_port: 465
+msmtp__smtp_tls_method: smtps
+msmtp__smtp_user: any@hosts.z9.ccchh.net
+msmtp__smtp_from: "{{ inventory_hostname }}@hosts.z9.ccchh.net"
+
 alloy_config_default: |
   prometheus.remote_write "default" {
     endpoint {