fixed json logging in fluentd-elasticsearch image

cluster/addons/fluentd-elasticsearch/fluentd-es-ds.yaml

@@ -48,24 +48,24 @@ roleRef:
 apiVersion: apps/v1
 kind: DaemonSet
 metadata:
-  name: fluentd-es-v2.2.0
+  name: fluentd-es-v2..0
   namespace: kube-system
   labels:
     k8s-app: fluentd-es
-    version: v2.2.0
+    version: v2.3.1
     kubernetes.io/cluster-service: "true"
     addonmanager.kubernetes.io/mode: Reconcile
 spec:
   selector:
     matchLabels:
       k8s-app: fluentd-es
-      version: v2.2.0
+      version: v2.3.1
   template:
     metadata:
       labels:
         k8s-app: fluentd-es
         kubernetes.io/cluster-service: "true"
-        version: v2.2.0
+        version: v2.3.1
       # This annotation ensures that fluentd does not get evicted if the node
       # supports critical pod annotation based priority scheme.
       # Note that this does not guarantee admission on the nodes (#40573).
@@ -77,7 +77,7 @@ spec:
       serviceAccountName: fluentd-es
       containers:
       - name: fluentd-es
-        image: k8s.gcr.io/fluentd-elasticsearch:v2.2.0
+        image: k8s.gcr.io/fluentd-elasticsearch:v2.3.1
         env:
         - name: FLUENTD_ARGS
           value: --no-supervisor -q

cluster/addons/fluentd-elasticsearch/fluentd-es-image/Gemfile

@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 gem 'fluentd', '<=1.2.4'
 gem 'activesupport', '~>5.2.1'
-gem 'fluent-plugin-kubernetes_metadata_filter', '~>2.1.2'
+gem 'fluent-plugin-kubernetes_metadata_filter', '~>2.0.0'
 gem 'fluent-plugin-elasticsearch', '~>2.11.5'
 gem 'fluent-plugin-systemd', '~>1.0.1'
 gem 'fluent-plugin-detect-exceptions', '~>0.0.11'

cluster/addons/fluentd-elasticsearch/fluentd-es-image/Makefile

@@ -16,7 +16,7 @@
 
 PREFIX = staging-k8s.gcr.io
 IMAGE = fluentd-elasticsearch
-TAG = v2.3.0
+TAG = v2.3.1
 
 build:
 	docker build --pull -t $(PREFIX)/$(IMAGE):$(TAG) .