From ea11539f7d60a81c3986cd6998f55432aacf456c Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Wed, 12 Nov 2025 16:11:50 +0100
Subject: [PATCH] Refactor docker-compose services to use individual
 Dockerfiles (#20)

* Initial plan

* Refactor services into individual Dockerfiles

Co-authored-by: velocitatem <60182044+velocitatem@users.noreply.github.com>

* Add EXPOSE directives to all Dockerfiles with port documentation

Co-authored-by: velocitatem <60182044+velocitatem@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: velocitatem <60182044+velocitatem@users.noreply.github.com>
---
 docker-compose.yml                | 16 ++++++++++++----
 docker/Kafka.dockerfile           |  7 +++++++
 docker/Redis.dockerfile           |  4 ++++
 docker/RedpandaConsole.dockerfile |  4 ++++
 docker/Zookeeper.dockerfile       |  4 ++++
 5 files changed, 31 insertions(+), 4 deletions(-)
 create mode 100644 docker/Kafka.dockerfile
 create mode 100644 docker/Redis.dockerfile
 create mode 100644 docker/RedpandaConsole.dockerfile
 create mode 100644 docker/Zookeeper.dockerfile

diff --git a/docker-compose.yml b/docker-compose.yml
index abfb77d..b0a6521 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,9 @@
 services:
   redis:
     container_name: "PHANTOM-redis"
-    image: redis:7-alpine
+    build:
+      context: ./docker
+      dockerfile: Redis.dockerfile
     ports:
       - "${REDIS_PORT:-6378}:6379"
     volumes:
@@ -9,7 +11,9 @@ services:
     restart: unless-stopped
   zookeeper:
     container_name: "PHANTOM-zookeeper"
-    image: confluentinc/cp-zookeeper:latest
+    build:
+      context: ./docker
+      dockerfile: Zookeeper.dockerfile
     environment:
       ZOOKEEPER_CLIENT_PORT: 2181
     ports:
@@ -17,7 +21,9 @@ services:
 
   kafka:
     container_name: "PHANTOM-kafka"
-    image: confluentinc/cp-kafka:7.5.0
+    build:
+      context: ./docker
+      dockerfile: Kafka.dockerfile
     depends_on:
       - zookeeper
     environment:
@@ -36,7 +42,9 @@ services:
 
   redpanda-console:
     container_name: "PHANTOM-redpanda-console"
-    image: docker.redpanda.com/redpandadata/console:latest
+    build:
+      context: ./docker
+      dockerfile: RedpandaConsole.dockerfile
     depends_on:
       - kafka
     environment:
diff --git a/docker/Kafka.dockerfile b/docker/Kafka.dockerfile
new file mode 100644
index 0000000..33c6ee8
--- /dev/null
+++ b/docker/Kafka.dockerfile
@@ -0,0 +1,7 @@
+FROM confluentinc/cp-kafka:7.5.0
+
+# Expose Kafka ports
+# 9092: External client connections
+# 29092: Internal broker communication
+# 9999: JMX monitoring port
+EXPOSE 9092 29092 9999
diff --git a/docker/Redis.dockerfile b/docker/Redis.dockerfile
new file mode 100644
index 0000000..183ee10
--- /dev/null
+++ b/docker/Redis.dockerfile
@@ -0,0 +1,4 @@
+FROM redis:7-alpine
+
+# Expose Redis port
+EXPOSE 6379
diff --git a/docker/RedpandaConsole.dockerfile b/docker/RedpandaConsole.dockerfile
new file mode 100644
index 0000000..d90ff48
--- /dev/null
+++ b/docker/RedpandaConsole.dockerfile
@@ -0,0 +1,4 @@
+FROM docker.redpanda.com/redpandadata/console:latest
+
+# Expose Redpanda Console web UI port
+EXPOSE 8080
diff --git a/docker/Zookeeper.dockerfile b/docker/Zookeeper.dockerfile
new file mode 100644
index 0000000..87df5d2
--- /dev/null
+++ b/docker/Zookeeper.dockerfile
@@ -0,0 +1,4 @@
+FROM confluentinc/cp-zookeeper:latest
+
+# Expose Zookeeper client port
+EXPOSE 2181