From f968d08bd15d6643db1878b85089bbc17f2feaff Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Tue, 22 Jun 2021 18:37:30 +0200
Subject: [PATCH] Setup with a scalable transfer-service (uses a
 consumer-group)

---
 README.sh          | 38 ++++++++++++++------
 docker-compose.yml | 88 +++++++++++++++++++++++++++++++++++++++++++---
 transfer           |  2 +-
 3 files changed, 113 insertions(+), 15 deletions(-)

diff --git a/README.sh b/README.sh
index bc23ace..21ee7c8 100755
--- a/README.sh
+++ b/README.sh
@@ -11,7 +11,7 @@ mvn package || exit 1
 if [ ! -e transfer/target/BUILD ] || [ "$(find transfer/target/classes/ -anewer transfer/target/BUILD | grep transfer/target/classes/de )" != "" ]
 then
   echo "Rebuilding Docker-Image..."
-  docker-compose rm -svf transfer
+  docker-compose rm -svf peter ute franz beate klaus
   mvn -f transfer/pom.xml docker:build
   touch transfer/target/BUILD
 fi
@@ -23,20 +23,38 @@ while ! [[ $(docker-compose run --rm kafka zookeeper-shell zookeeper:2181 ls /br
 
 docker-compose run --rm kafka kafka-topics --zookeeper zookeeper:2181 --if-not-exists --create --replication-factor 1 --partitions 5 --topic transfers
 
-docker-compose up -d transfer
+docker-compose up -d peter ute franz beate klaus
 
 docker-compose run --name transferlog --rm kafka kafka-console-consumer --bootstrap-server kafka:9093 --topic transfers &
-while ! [[ $(http 0:8091/actuator/health 2> /dev/null | jq -r .status ) =~ "UP" ]]; do echo "Waiting for transfer..."; sleep 1; done
+while ! [[ $(http 0:8091/actuator/health 2> /dev/null | jq -r .status ) =~ "UP" ]]; do echo "Waiting for peter..."; sleep 1; done
 
 echo '{"id":1,"payer":1,"payee":2, "amount":10}' | http -v :8091/transfers
-http :8091/transfers/1
+http --follow :8091/transfers/1
 http -v  :8091/transfers id=2 payer=2 payee=1 amount=5
-http :8091/transfers/2
-
-docker-compose restart transfer
-while ! [[ $(http 0:8091/actuator/health 2> /dev/null | jq -r .status ) =~ "UP" ]]; do echo "Waiting for transfer..."; sleep 1; done
-http :8091/transfers/1
-http :8091/transfers/2
+http --follow :8091/transfers/2
+http -v  :8091/transfers id=12 payer=2 payee=1 amount=5
+http -v  :8091/transfers id=21 payer=2 payee=1 amount=5
+http -v  :8091/transfers id=7  payer=2 payee=1 amount=5
+http -v  :8091/transfers id=9  payer=2 payee=1 amount=5
+http -v  :8091/transfers id=13 payer=2 payee=1 amount=5
+http -v  :8091/transfers id=31 payer=2 payee=1 amount=5
+http -v --follow :8091/transfers/12
+http -v --follow :8091/transfers/21
+http -v --follow :8091/transfers/7
+http -v --follow :8091/transfers/9
+http -v --follow :8091/transfers/13
+http -v --follow :8091/transfers/31
+
+docker-compose restart peter ute franz beate klaus
+while ! [[ $(http 0:8091/actuator/health 2> /dev/null | jq -r .status ) =~ "UP" ]]; do echo "Waiting for peter..."; sleep 1; done
+http -v --follow :8091/transfers/1
+http -v --follow :8091/transfers/2
+http -v --follow :8091/transfers/12
+http -v --follow :8091/transfers/21
+http -v --follow :8091/transfers/7
+http -v --follow :8091/transfers/9
+http -v --follow :8091/transfers/13
+http -v --follow :8091/transfers/31
 
 
 docker container stop transferlog
diff --git a/docker-compose.yml b/docker-compose.yml
index 7629d23..1f7f5a4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,7 +3,7 @@ services:
   zookeeper:
     image: confluentinc/cp-zookeeper:6.2.0
     ports:
-      - "2181:2181"
+      - 2181:2181
     environment:
       ZOOKEEPER_CLIENT_PORT: 2181
 
@@ -20,12 +20,92 @@ services:
     depends_on:
       - zookeeper
 
-  transfer:
-    image: juplo/payment-service-demo--transfer:1.1.0
+  messages:
+    image: confluentinc/cp-kafka:6.2.0
+    command: >
+      kafka-console-consumer
+        --bootstrap-server kafka:9093
+        --from-beginning
+        --property print.key=true
+        --property key.separator=": "
+        --topic transfers
+
+  peter:
+    image: juplo/payment-service-demo--transfer:2.0.0
+    ports:
+      - 8091:8080
+    environment:
+      juplo.transfer.bootstrap-servers: kafka:9093
+      juplo.transfer.group-instance-id: peter
+      juplo.transfer.instance-id-uri-mapping.peter: http://localhost:8091
+      juplo.transfer.instance-id-uri-mapping.ute:   http://localhost:8092
+      juplo.transfer.instance-id-uri-mapping.franz: http://localhost:8093
+      juplo.transfer.instance-id-uri-mapping.beate: http://localhost:8094
+      juplo.transfer.instance-id-uri-mapping.klaus: http://localhost:8095
+    depends_on:
+      - zookeeper
+      - kafka
+
+  ute:
+    image: juplo/payment-service-demo--transfer:2.0.0
+    ports:
+      - 8092:8080
+    environment:
+      juplo.transfer.bootstrap-servers: kafka:9093
+      juplo.transfer.group-instance-id: ute
+      juplo.transfer.instance-id-uri-mapping.peter: http://localhost:8091
+      juplo.transfer.instance-id-uri-mapping.ute:   http://localhost:8092
+      juplo.transfer.instance-id-uri-mapping.franz: http://localhost:8093
+      juplo.transfer.instance-id-uri-mapping.beate: http://localhost:8094
+      juplo.transfer.instance-id-uri-mapping.klaus: http://localhost:8095
+    depends_on:
+      - zookeeper
+      - kafka
+
+  franz:
+    image: juplo/payment-service-demo--transfer:2.0.0
+    ports:
+      - 8093:8080
+    environment:
+      juplo.transfer.bootstrap-servers: kafka:9093
+      juplo.transfer.group-instance-id: franz
+      juplo.transfer.instance-id-uri-mapping.peter: http://localhost:8091
+      juplo.transfer.instance-id-uri-mapping.ute:   http://localhost:8092
+      juplo.transfer.instance-id-uri-mapping.franz: http://localhost:8093
+      juplo.transfer.instance-id-uri-mapping.beate: http://localhost:8094
+      juplo.transfer.instance-id-uri-mapping.klaus: http://localhost:8095
+    depends_on:
+      - zookeeper
+      - kafka
+
+  beate:
+    image: juplo/payment-service-demo--transfer:2.0.0
+    ports:
+      - 8094:8080
+    environment:
+      juplo.transfer.bootstrap-servers: kafka:9093
+      juplo.transfer.group-instance-id: beate
+      juplo.transfer.instance-id-uri-mapping.peter: http://localhost:8091
+      juplo.transfer.instance-id-uri-mapping.ute:   http://localhost:8092
+      juplo.transfer.instance-id-uri-mapping.franz: http://localhost:8093
+      juplo.transfer.instance-id-uri-mapping.beate: http://localhost:8094
+      juplo.transfer.instance-id-uri-mapping.klaus: http://localhost:8095
+    depends_on:
+      - zookeeper
+      - kafka
+
+  klaus:
+    image: juplo/payment-service-demo--transfer:2.0.0
     ports:
-      - "8091:8080"
+      - 8095:8080
     environment:
       juplo.transfer.bootstrap-servers: kafka:9093
+      juplo.transfer.group-instance-id: klaus
+      juplo.transfer.instance-id-uri-mapping.peter: http://localhost:8091
+      juplo.transfer.instance-id-uri-mapping.ute:   http://localhost:8092
+      juplo.transfer.instance-id-uri-mapping.franz: http://localhost:8093
+      juplo.transfer.instance-id-uri-mapping.beate: http://localhost:8094
+      juplo.transfer.instance-id-uri-mapping.klaus: http://localhost:8095
     depends_on:
       - zookeeper
       - kafka
diff --git a/transfer b/transfer
index 9001be5..5662a3f 160000
--- a/transfer
+++ b/transfer
@@ -1 +1 @@
-Subproject commit 9001be5d43ca1ca7a0dfe5f5a93c8903d1839f15
+Subproject commit 5662a3f4f6868e3ae474825e977e49bddddd4043
-- 
2.20.1