Use latest Confluent version in docker-compose file

Author: blootsvoets

.env

@@ -0,0 +1 @@
+CONFLUENT_VERSION=7.4.0

docker-compose.yml

@@ -9,7 +9,7 @@ services:
   # Zookeeper Cluster                                                         #
   #---------------------------------------------------------------------------#
   zookeeper-1:
-    image: confluentinc/cp-zookeeper:7.2.2
+    image: confluentinc/cp-zookeeper:${CONFLUENT_VERSION}
     environment:
       ZOOKEEPER_SERVER_ID: 1
       ZOOKEEPER_CLIENT_PORT: 2181
@@ -19,7 +19,7 @@ services:
       ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888
 
   zookeeper-2:
-    image: confluentinc/cp-zookeeper:7.2.2
+    image: confluentinc/cp-zookeeper:${CONFLUENT_VERSION}
     environment:
       ZOOKEEPER_SERVER_ID: 2
       ZOOKEEPER_CLIENT_PORT: 2181
@@ -29,7 +29,7 @@ services:
       ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888
 
   zookeeper-3:
-    image: confluentinc/cp-zookeeper:7.2.2
+    image: confluentinc/cp-zookeeper:${CONFLUENT_VERSION}
     environment:
       ZOOKEEPER_SERVER_ID: 3
       ZOOKEEPER_CLIENT_PORT: 2181
@@ -42,7 +42,7 @@ services:
   # Kafka Cluster                                                             #
   #---------------------------------------------------------------------------#
   kafka-1:
-    image: confluentinc/cp-kafka:7.2.2
+    image: confluentinc/cp-kafka:${CONFLUENT_VERSION}
     depends_on:
       - zookeeper-1
       - zookeeper-2
@@ -61,7 +61,7 @@ services:
       KAFKA_CONFLUENT_SUPPORT_METRICS_ENABLE: "false"
 
   kafka-2:
-    image: confluentinc/cp-kafka:7.2.2
+    image: confluentinc/cp-kafka:${CONFLUENT_VERSION}
     depends_on:
       - zookeeper-1
       - zookeeper-2
@@ -80,7 +80,7 @@ services:
       KAFKA_CONFLUENT_SUPPORT_METRICS_ENABLE: "false"
 
   kafka-3:
-    image: confluentinc/cp-kafka:7.2.2
+    image: confluentinc/cp-kafka:${CONFLUENT_VERSION}
     depends_on:
       - zookeeper-1
       - zookeeper-2
@@ -102,7 +102,7 @@ services:
   # Schema Registry                                                           #
   #---------------------------------------------------------------------------#
   schema-registry-1:
-    image: confluentinc/cp-schema-registry:7.2.2
+    image: confluentinc/cp-schema-registry:${CONFLUENT_VERSION}
     depends_on:
       - kafka-1
       - kafka-2
@@ -121,7 +121,7 @@ services:
   # REST proxy                                                                #
   #---------------------------------------------------------------------------#
   rest-proxy-1:
-    image: confluentinc/cp-kafka-rest:7.2.2
+    image: confluentinc/cp-kafka-rest:${CONFLUENT_VERSION}
     depends_on:
       - kafka-1
       - kafka-2