fix(netdata): make host mounts readonly (#2596)

* fix(netdata): make host mounts readonly

* actually mount hostpaths as host paths

charts/incubator/netdata/Chart.yaml

@@ -18,7 +18,7 @@ maintainers:
 name: netdata
 sources:
 - https://github.com/netdata
-version: 0.0.1
+version: 0.0.2
 annotations:
   truecharts.org/catagories: |
     - utilities

charts/incubator/netdata/values.yaml

@@ -67,34 +67,34 @@ persistence:
     mountPath: "/var/cache/netdata"
   passwd:
     enabled: true
+    type: hostPath
     hostPath: "/etc/passwd"
     mountPath: "/host/etc/passwd"
-    hostPathType: ""
-    readOnly: false
+    readOnly: true
   group:
     enabled: true
+    type: hostPath
     hostPath: "/etc/group"
     mountPath: "/host/etc/group"
-    hostPathType: ""
-    readOnly: false
+    readOnly: true
   proc:
     enabled: true
+    type: hostPath
     hostPath: "/proc"
     mountPath: "/host/proc"
-    hostPathType: ""
-    readOnly: false
+    readOnly: true
   sys:
     enabled: true
+    type: hostPath
     hostPath: "/sys"
     mountPath: "/host/sys"
-    hostPathType: ""
-    readOnly: false
+    readOnly: true
   os:
     enabled: true
+    type: hostPath
     hostPath: "/etc/os-release"
     mountPath: "/host/etc/os-release"
-    hostPathType: ""
-    readOnly: false
+    readOnly: true
 
 initContainers:
   create-config: