Fix netdata diskspace plugin issue

system/extra/netdata/files/systemd/override.conf

@@ -0,0 +1,2 @@
+[Service]
+ReadOnlyDirectories=

system/extra/netdata/tasks/main.yml

@@ -14,6 +14,25 @@
   when:
     system_extra_netdata_install_sensors
 
+- name: "create systemd override directory"
+  ansible.builtin.file:
+    path: "/etc/systemd/system/netdata.service.d"
+    state: "directory"
+    mode: 0755
+
+- name: "create override configuration"
+  ansible.builtin.copy:
+    src: "./systemd/override.conf"
+    dest: "/etc/systemd/system/netdata.service.d/override.conf"
+    mode: 0644
+  register: system_extra_netdata_systemd_override
+
+- name: "systemd user daemon reload"
+  ansible.builtin.systemd:
+    daemon_reload: true
+  when:
+    system_extra_netdata_systemd_override.changed
+
 - name: "enable netdata"
   ansible.builtin.systemd:
     name: "netdata"
@@ -51,6 +70,7 @@
     (system_extra_netdata_install.changed or
     (system_extra_netdata_lm_sensors_install is defined and
     system_extra_netdata_lm_sensors_install.changed) or
+    system_extra_netdata_systemd_override.changed or
     system_extra_netdata_netdata_conf.changed or
     system_extra_netdata_stream_conf.changed or
     system_extra_netdata_health_conf.changed) and