Add example config file for kafka kraft mode metrics(#881) (#906)

Signed-off-by: KumKeeHyun <kbzjung359@gmail.com>

example_configs/kafka-kraft-3_0_0.yml

@@ -0,0 +1,137 @@
+lowercaseOutputName: true
+
+rules:
+# Special cases and very specific rules
+- pattern : kafka.server<type=(.+), name=(.+), clientId=(.+), topic=(.+), partition=(.*)><>Value
+  name: kafka_server_$1_$2
+  type: GAUGE
+  labels:
+    clientId: "$3"
+    topic: "$4"
+    partition: "$5"
+- pattern : kafka.server<type=(.+), name=(.+), clientId=(.+), brokerHost=(.+), brokerPort=(.+)><>Value
+  name: kafka_server_$1_$2
+  type: GAUGE
+  labels:
+    clientId: "$3"
+    broker: "$4:$5"
+- pattern : kafka.coordinator.(\w+)<type=(.+), name=(.+)><>Value
+  name: kafka_coordinator_$1_$2_$3
+  type: GAUGE
+# Kraft current state info metric rule
+- pattern: "kafka.server<type=raft-metrics><>current-state: ([a-z]+)"
+  name: kafka_server_raft_metrics_current_state_info
+  type: GAUGE
+  value: 1
+  labels:
+    "state": "$1"
+# Kraft specific rules for raft-metrics, raft-channel-metrics, broker-metadata-metrics
+- pattern: kafka.server<type=(.+)><>([a-z-]+)-total
+  name: kafka_server_$1_$2_total
+  type: COUNTER
+- pattern: kafka.server<type=(.+)><>([a-z-]+)
+  name: kafka_server_$1_$2
+  type: GAUGE
+
+# Generic per-second counters with 0-2 key/value pairs
+- pattern: kafka.(\w+)<type=(.+), name=(.+)PerSec\w*, (.+)=(.+), (.+)=(.+)><>Count
+  name: kafka_$1_$2_$3_total
+  type: COUNTER
+  labels:
+    "$4": "$5"
+    "$6": "$7"
+- pattern: kafka.(\w+)<type=(.+), name=(.+)PerSec\w*, (.+)=(.+)><>Count
+  name: kafka_$1_$2_$3_total
+  type: COUNTER
+  labels:
+    "$4": "$5"
+- pattern: kafka.(\w+)<type=(.+), name=(.+)PerSec\w*><>Count
+  name: kafka_$1_$2_$3_total
+  type: COUNTER
+
+# Quota specific rules
+- pattern: kafka.server<type=(.+), user=(.+), client-id=(.+)><>([a-z-]+)
+  name: kafka_server_quota_$4
+  type: GAUGE
+  labels:
+    resource: "$1"
+    user: "$2"
+    clientId: "$3"
+- pattern: kafka.server<type=(.+), client-id=(.+)><>([a-z-]+)
+  name: kafka_server_quota_$3
+  type: GAUGE
+  labels:
+    resource: "$1"
+    clientId: "$2"
+- pattern: kafka.server<type=(.+), user=(.+)><>([a-z-]+)
+  name: kafka_server_quota_$3
+  type: GAUGE
+  labels:
+    resource: "$1"
+    user: "$2"
+
+# Generic gauges with 0-2 key/value pairs
+- pattern: kafka.(\w+)<type=(.+), name=(.+), (.+)=(.+), (.+)=(.+)><>Value
+  name: kafka_$1_$2_$3
+  type: GAUGE
+  labels:
+    "$4": "$5"
+    "$6": "$7"
+- pattern: kafka.(\w+)<type=(.+), name=(.+), (.+)=(.+)><>Value
+  name: kafka_$1_$2_$3
+  type: GAUGE
+  labels:
+    "$4": "$5"
+- pattern: kafka.(\w+)<type=(.+), name=(.+)><>Value
+  name: kafka_$1_$2_$3
+  type: GAUGE
+
+# Emulate Prometheus 'Summary' metrics for the exported 'Histogram's.
+#
+# Note that these are missing the '_sum' metric!
+- pattern: kafka.(\w+)<type=(.+), name=(.+), (.+)=(.+), (.+)=(.+)><>Count
+  name: kafka_$1_$2_$3_count
+  type: COUNTER
+  labels:
+    "$4": "$5"
+    "$6": "$7"
+- pattern: kafka.(\w+)<type=(.+), name=(.+), (.+)=(.*), (.+)=(.+)><>(\d+)thPercentile
+  name: kafka_$1_$2_$3
+  type: GAUGE
+  labels:
+    "$4": "$5"
+    "$6": "$7"
+    quantile: "0.$8"
+- pattern: kafka.(\w+)<type=(.+), name=(.+), (.+)=(.+)><>Count
+  name: kafka_$1_$2_$3_count
+  type: COUNTER
+  labels:
+    "$4": "$5"
+- pattern: kafka.(\w+)<type=(.+), name=(.+), (.+)=(.*)><>(\d+)thPercentile
+  name: kafka_$1_$2_$3
+  type: GAUGE
+  labels:
+    "$4": "$5"
+    quantile: "0.$6"
+- pattern: kafka.(\w+)<type=(.+), name=(.+)><>Count
+  name: kafka_$1_$2_$3_count
+  type: COUNTER
+- pattern: kafka.(\w+)<type=(.+), name=(.+)><>(\d+)thPercentile
+  name: kafka_$1_$2_$3
+  type: GAUGE
+  labels:
+    quantile: "0.$4"
+
+# Generic gauges for MeanRate Percent
+# Ex) kafka.server<type=KafkaRequestHandlerPool, name=RequestHandlerAvgIdlePercent><>MeanRate
+- pattern: kafka.(\w+)<type=(.+), name=(.+)Percent\w*><>MeanRate
+  name: kafka_$1_$2_$3_percent
+  type: GAUGE
+- pattern: kafka.(\w+)<type=(.+), name=(.+)Percent\w*><>Value
+  name: kafka_$1_$2_$3_percent
+  type: GAUGE
+- pattern: kafka.(\w+)<type=(.+), name=(.+)Percent\w*, (.+)=(.+)><>Value
+  name: kafka_$1_$2_$3_percent
+  type: GAUGE
+  labels:
+    "$4": "$5"