From 52db6ded97746af83343d81bef280656c66c1e61 Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Tue, 8 Aug 2023 18:45:04 +0200
Subject: [PATCH] Increased number of Brokers from 3 to 5

---
 burrow.conf             |  4 +--
 docker-compose.yml      | 60 ++++++++++++++++++++++++++++++++++++++++-
 kafka-lag-exporter.conf |  2 +-
 prometheus.yml          |  2 ++
 4 files changed, 64 insertions(+), 4 deletions(-)

diff --git a/burrow.conf b/burrow.conf
index b62324a..554cb1a 100644
--- a/burrow.conf
+++ b/burrow.conf
@@ -10,7 +10,7 @@ kafka-version="2.0.1"
 [cluster.local]
 client-profile="docker"
 class-name="kafka"
-servers=[ "kafka-1:9092", "kafka-2:9092", "kafka-3:9092" ]
+servers=[ "kafka-1:9092", "kafka-2:9092", "kafka-3:9092", "kafka-4:9092", "kafka-5:9092" ]
 topic-refresh=60
 offset-refresh=30
 groups-reaper-refresh=30
@@ -18,7 +18,7 @@ groups-reaper-refresh=30
 [consumer.local]
 class-name="kafka"
 cluster="local"
-servers=[ "kafka-1:9092", "kafka-2:9092", "kafka-3:9092" ]
+servers=[ "kafka-1:9092", "kafka-2:9092", "kafka-3:9092", "kafka-4:9092", "kafka-5:9092" ]
 client-profile="docker"
 group-denylist="^(console-consumer-|python-kafka-consumer-|quick-).*$"
 group-allowlist=""
diff --git a/docker-compose.yml b/docker-compose.yml
index 8b15b38..c083510 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -96,18 +96,72 @@ services:
     depends_on:
       - zookeeper
 
+  kafka-4:
+    build: kafka
+    environment:
+      KAFKA_ENABLE_KRAFT: 'false'
+      KAFKA_OPTS:
+        -javaagent:/opt/prometheus/jmx_prometheus_javaagent.jar=80:/opt/prometheus/config.yml
+        -Dcom.sun.management.jmxremote=true
+        -Dcom.sun.management.jmxremote.port=7000
+        -Dcom.sun.management.jmxremote.authenticate=false
+      KAFKA_CFG_ZOOKEEPER_CONNECT: zookeeper:2181
+      KAFKA_CFG_LISTENERS: BROKER://:9092, LOCALHOST://:9084
+      KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP: BROKER:PLAINTEXT, LOCALHOST:PLAINTEXT
+      KAFKA_CFG_ADVERTISED_LISTENERS: BROKER://kafka-3:9092, LOCALHOST://localhost:9084
+      KAFKA_BROKER_ID: 4
+      ALLOW_PLAINTEXT_LISTENER: 'yes'
+      KAFKA_CFG_INTER_BROKER_LISTENER_NAME: BROKER
+      KAFKA_CFG_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
+      KAFKA_CFG_AUTO_CREATE_TOPICS_ENABLE: "false"
+    volumes:
+      - kafka-4:/bitnami/kafka
+    ports:
+      - 9084:9084
+      - 7004:7000
+    depends_on:
+      - zookeeper
+
+  kafka-5:
+    build: kafka
+    environment:
+      KAFKA_ENABLE_KRAFT: 'false'
+      KAFKA_OPTS:
+        -javaagent:/opt/prometheus/jmx_prometheus_javaagent.jar=80:/opt/prometheus/config.yml
+        -Dcom.sun.management.jmxremote=true
+        -Dcom.sun.management.jmxremote.port=7000
+        -Dcom.sun.management.jmxremote.authenticate=false
+      KAFKA_CFG_ZOOKEEPER_CONNECT: zookeeper:2181
+      KAFKA_CFG_LISTENERS: BROKER://:9092, LOCALHOST://:9085
+      KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP: BROKER:PLAINTEXT, LOCALHOST:PLAINTEXT
+      KAFKA_CFG_ADVERTISED_LISTENERS: BROKER://kafka-3:9092, LOCALHOST://localhost:9085
+      KAFKA_BROKER_ID: 5
+      ALLOW_PLAINTEXT_LISTENER: 'yes'
+      KAFKA_CFG_INTER_BROKER_LISTENER_NAME: BROKER
+      KAFKA_CFG_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
+      KAFKA_CFG_AUTO_CREATE_TOPICS_ENABLE: "false"
+    volumes:
+      - kafka-5:/bitnami/kafka
+    ports:
+      - 9085:9085
+      - 7005:7000
+    depends_on:
+      - zookeeper
+
   setup:
     image: juplo/toolbox
     command: >
       bash -c "
         kafka-topics --bootstrap-server kafka:9092 --delete --if-exists --topic test
-        kafka-topics --bootstrap-server kafka:9092 --create --topic test --partitions 2 --replication-factor 3 --config min.insync.replicas=2
+        kafka-topics --bootstrap-server kafka:9092 --create --topic test --partitions 33 --replication-factor 3 --config min.insync.replicas=2
         kafka-topics --bootstrap-server kafka:9092 --describe --topic test
       "
     depends_on:
       - kafka-1
       - kafka-2
       - kafka-3
+      - kafka-4
+      - kafka-5
 
   cli:
     image: juplo/toolbox
@@ -116,6 +170,8 @@ services:
       - kafka-1
       - kafka-2
       - kafka-3
+      - kafka-4
+      - kafka-5
 
   burrow:
     build: burrow
@@ -205,4 +261,6 @@ volumes:
   kafka-1:
   kafka-2:
   kafka-3:
+  kafka-4:
+  kafka-5:
   grafana:
diff --git a/kafka-lag-exporter.conf b/kafka-lag-exporter.conf
index 7ea2244..a87439b 100644
--- a/kafka-lag-exporter.conf
+++ b/kafka-lag-exporter.conf
@@ -2,7 +2,7 @@ kafka-lag-exporter {
   clusters = [
     {
       name = "my-cluster"
-      bootstrap-brokers = "kafka-1:9092,kafka-2:9092,kafka-3:9092"
+      bootstrap-brokers = "kafka-1:9092,kafka-2:9092,kafka-3:9092,kafka-4:9092,kafka-5:9092"
       labels = {
         env = "dev"
       }
diff --git a/prometheus.yml b/prometheus.yml
index 3ce771c..c4b4221 100644
--- a/prometheus.yml
+++ b/prometheus.yml
@@ -44,6 +44,8 @@ scrape_configs:
           - "kafka-1:80"
           - "kafka-2:80"
           - "kafka-3:80"
+          - "kafka-4:80"
+          - "kafka-5:80"
         labels:
           env: "dev"
     relabel_configs:
-- 
2.20.1