case und superflous option removed

roles/server/defaults/main.yml

@@ -9,4 +9,4 @@ telegraf_agent_flush_jitter: "2s"
 telegraf_agent_metric_batch_size: 500
 telegraf_agent_metric_buffer_limit: 1000
 telegraf_agent_collection_jitter: "1s"
-telegraf_agent_round_interval: true
+telegraf_agent_round_interval: "true"       # Must be quoted, because Ansible would interpret as boolean and will set it as "True" (capital T). But telegraf needs it with lowercase 'T'.

roles/server/files/telegraf.d/output_influx.conf

@@ -7,9 +7,6 @@
   username = "telegraf"
   password = "secret"
 
-  ## Wenn die DB nicht erreichbar ist, nicht zu lange blockieren:
-  ## nur wenige Wiederholungen
-  timeout = "3s"
   ## Ab Telegraf 1.20+ sinnvoll:
   http_headers = { "Connection" = "close" }