feature: allow to set dnsConfig + set default ndots to prevent unnecessary DNS calls (#40)

Co-authored-by: Tomasz Rychlewicz <tomasz.rychlewicz@prometheanworld.com>

Author: rysi3k

templates/daemonset.yaml

@@ -28,6 +28,10 @@ spec:
       hostPID: true
       hostNetwork: true
       dnsPolicy: ClusterFirstWithHostNet
+      {{- with .Values.dnsConfig }}
+      dnsConfig:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
       # Collector container (non-privileged)
       - name: collector

values.yaml

@@ -110,6 +110,12 @@ rbac:
   # Service account name
   serviceAccountName: better-stack-collector
 
+# set default ndots to prevent unnecessary DNS resolve calls
+dnsConfig:
+  options:
+    - name: ndots
+      value: "2"
+
 # Security context for pods
 securityContext:
   collector: