Actually add that Nagios template

playbooks/tasks/web/nagios-hosts.cfg.j2

@@ -0,0 +1,94 @@
+# This file is managed via Ansible
+# Any changes made WILL be overwritten
+
+# Templates
+define host {
+	name			ansible-linux-server
+	check_period		24x7
+	check_interval		5
+	retry_interval		1
+	max_check_attempts	10
+	check_command		check-host-alive
+	notification_period	24x7
+	notification_interval	120
+	hostgroups		ansible
+	check_period		24x7
+	contacts		salt
+	register		0
+}
+define service {
+	use			generic-service
+	name			ansible-generic-service
+	max_check_attempts	5
+	check_interval		5
+	retry_interval		1
+	register		0
+}
+
+# Contacts
+define contact {
+	contact_name			salt
+	host_notifications_enabled	1
+	host_notification_period	24x7
+	host_notification_commands	notify-host-by-email
+	service_notifications_enabled	1
+	service_notification_period	24x7
+	service_notification_commands	notify-service-by-email
+	email				rehashedsalt@cock.li
+}
+
+# Default hostgroup and its checks
+define hostgroup {
+	hostgroup_name		ansible
+	alias			Ansible-managed Hosts
+}
+define service {
+	use			ansible-generic-service
+	service_description	SSH
+	check_command		check_ssh
+	hostgroup_name		ansible
+}
+
+# Commands
+# Ain't nobody here but us chickens...
+
+# Services
+define service {
+	use			ansible-generic-service
+	service_description	HTTP
+	check_command		check_http
+	hostgroup_name		nagios-checkhttp
+}
+define service {
+	use			ansible-generic-service
+	service_description	HTTPS
+	check_command		check_http!--ssl
+	hostgroup_name		nagios-checkhttp
+}
+
+# Hostgroups
+# Everything here is dynamically-generated based on tags from Netbox
+{% for tag in query('netbox.netbox.nb_lookup', 'tags', api_endpoint='https://netbox.desu.ltd', token=netbox_token) %}
+define hostgroup {
+	hostgroup_name		{{ tag.value.slug }}
+	alias			{{ tag.value.display }}
+}
+{% endfor %}
+
+# This list of hosts is dynamically generated based on devices and VMs tagged with "nagios" in Netbox
+{% for host in query('netbox.netbox.nb_lookup', 'devices', api_endpoint='https://netbox.desu.ltd', token=netbox_token) + query('netbox.netbox.nb_lookup', 'virtual-machines', api_endpoint='https://netbox.desu.ltd', token=netbox_token)%}
+{% if host.value.primary_ip %}
+{% for tag in host.value.tags %}
+{% if tag.slug == "nagios" %}
+define host {
+	use			ansible-linux-server
+	host_name		{{ host.value.name }}
+	alias			{{ host.value.display }}
+	address			{{ host.value.primary_ip.address.split('/',1)[0] }}
+	hostgroups		ansible{% for tag in host.value.tags %},{{ tag.slug }}{% endfor %}
+
+}
+{% endif %}
+{% endfor %}
+{% endif %}
+{% endfor %}