Improve netdata configuration

system/extra/netdata/tasks/main.yml

@@ -23,6 +23,12 @@
     dest: "/etc/netdata/stream.conf"
   register: system_extra_netdata_stream_conf
 
+- name: "configure netdata health notifications"
+  ansible.builtin.template:
+    src: "./health_alarm_notify.conf"
+    dest: "/etc/netdata/health_alarm_notify.conf"
+  register: system_extra_netdata_health_conf
+
 - name: "start netdata"
   ansible.builtin.systemd:
     name: "netdata"
@@ -36,5 +42,6 @@
   when:
     (system_extra_netdata_install.changed or
     system_extra_netdata_netdata_conf.changed or
-    system_extra_netdata_stream_conf.changed) and
+    system_extra_netdata_stream_conf.changed or
+    system_extra_netdata_health_conf.changed) and
     not system_extra_netdata_start.changed

system/extra/netdata/templates/health_alarm_notify.conf

@@ -0,0 +1,5 @@
+# enable/disable sending emails
+SEND_EMAIL="YES"
+
+# if a role recipient is not configured, an email will be send to:
+DEFAULT_RECIPIENT_EMAIL="root"

system/extra/netdata/templates/netdata.conf

@@ -17,3 +17,15 @@
     # Netdata is not designed to be exposed to potentially hostile
     # networks. See https://github.com/netdata/netdata/issues/164
     bind socket to IP = {{ system_extra_netdata_bind_to }}
+
+[health]
+    enabled = {{ "yes" if system_extra_netdata_stream_parent else "no" }}
+
+[db]
+    mode = {{ "dbengine" if system_extra_netdata_stream_parent else "none" }}
+
+[web]
+    mode = {{ "static-threaded" if system_extra_netdata_stream_parent else "none" }}
+
+[ml]
+    enabled = {{ "yes" if system_extra_netdata_stream_parent else "no" }}