Add collection of the new glbc and cluster-autoscaler logs

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

@@ -15,7 +15,7 @@
 .PHONY:	build push
 
 IMAGE = fluentd-elasticsearch
-TAG = 1.15
+TAG = 1.17
 
 build:	
 	docker build -t gcr.io/google_containers/$(IMAGE):$(TAG) .

cluster/addons/fluentd-elasticsearch/fluentd-es-image/td-agent.conf

@@ -124,7 +124,7 @@
   format /^(?<time>[^ ]* [^ ,]*)[^\[]*\[[^\]]*\]\[(?<severity>[^ \]]*) *\] (?<message>.*)$/
   time_format %Y-%m-%d %H:%M:%S
   path /var/log/salt/minion
-  pos_file /var/log/gcp-salt.pos
+  pos_file /var/log/es-salt.pos
   tag salt
 </source>
 
@@ -222,6 +222,34 @@
   type kubernetes_metadata
 </filter>
 
+# Example:
+# I0603 15:31:05.793605       6 cluster_manager.go:230] Reading config from path /etc/gce.conf
+<source>
+  type tail
+  format multiline
+  multiline_flush_interval 5s
+  format_firstline /^\w\d{4}/
+  format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
+  time_format %m%d %H:%M:%S.%N
+  path /var/log/glbc.log
+  pos_file /var/log/es-glbc.log.pos
+  tag glbc
+</source>
+
+# Example:
+# I0603 15:31:05.793605       6 cluster_manager.go:230] Reading config from path /etc/gce.conf
+<source>
+  type tail
+  format multiline
+  multiline_flush_interval 5s
+  format_firstline /^\w\d{4}/
+  format1 /^(?<severity>\w)(?<time>\d{4} [^\s]*)\s+(?<pid>\d+)\s+(?<source>[^ \]]+)\] (?<message>.*)/
+  time_format %m%d %H:%M:%S.%N
+  path /var/log/cluster-autoscaler.log
+  pos_file /var/log/es-cluster-autoscaler.log.pos
+  tag cluster-autoscaler
+</source>
+
 <match **>
    type elasticsearch
    log_level info