fix docker config (#757)

* fix docker config

* doc - fix config rewrite

docker-compose.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 
 services:
   dnscollector:

docker-config.yml

@@ -2,27 +2,25 @@ global:
   trace:
     verbose: true
 
-multiplexer:
-  collectors:
-    - name: tap
-      dnstap:
-        listen-ip: 0.0.0.0
-        listen-port: 6000
-      transforms:
-        normalize:
-          qname-lowercase: false
+pipelines:
+  - name: tap
+    dnstap:
+      listen-ip: 0.0.0.0
+      listen-port: 6000
+    transforms:
+      normalize:
+        qname-lowercase: false
+        qname-replace-nonprintable: true
+    routing-policy:
+      forward: [ json, prom ]
+      dropped: [ ]
 
-  loggers:
-    - name: json
-      logfile:
-        file-path:  /var/dnscollector/dnstap.log 
-        mode: flat-json
+  - name: json
+    logfile:
+      file-path:  /var/dnscollector/dnstap.log 
+      mode: flat-json
 
-    - name: prom
-      prometheus:
-        listen-ip: 0.0.0.0
-        listen-port: 8080
-
-  routes:
-    - from: [ tap ]
-      to: [ json, prom ]
+  - name: prom
+    prometheus:
+      listen-ip: 0.0.0.0
+      listen-port: 8080

docs/transformers/transform_rewrite.md

@@ -13,13 +13,9 @@ Options:
 Config example to remove the DNStap version and update the identity name.
 
 ```yaml
-- name: tap
-dnstap:
-    listen-ip: 0.0.0.0
-    listen-port: 6000
 transforms:
-    rewrite:
+  rewrite:
     identifiers:
-        dnstap.version: ""
-        dnstap.identity: "foo"
+      dnstap.version: ""
+      dnstap.identity: "foo"
 ```