Docker Hub (#1053)

* Initial Docker Hub test

* Change upstream from for now

* Working polylith setup and build tools

* Some readme and other bits

* Remove the readme for now

* Add readme, rename a couple of things

* COPY instead of ADD

* Simplify component builds

* Fix the docker-compose things

* Build the base image again

* Update readme, add .dockerignore

* Indentation

* Whitespace

* Update images-push.sh

* Update images-push.sh

docker/hub/docker-compose.deps.yml

@@ -0,0 +1,36 @@
+version: "3.4"
+services:
+  postgres:
+    hostname: postgres
+    image: postgres:9.5
+    restart: always
+    volumes:
+      - ../postgres/create_db.sh:/docker-entrypoint-initdb.d/20-create_db.sh
+    environment:
+      POSTGRES_PASSWORD: itsasecret
+      POSTGRES_USER: dendrite
+    networks:
+      - internal
+
+  zookeeper:
+    hostname: zookeeper
+    image: zookeeper
+    networks:
+      - internal
+
+  kafka:
+    container_name: dendrite_kafka
+    hostname: kafka
+    image: wurstmeister/kafka
+    environment:
+      KAFKA_ADVERTISED_HOST_NAME: "kafka"
+      KAFKA_DELETE_TOPIC_ENABLE: "true"
+      KAFKA_ZOOKEEPER_CONNECT: "zookeeper:2181"
+    depends_on:
+      - zookeeper
+    networks:
+      - internal
+
+networks:
+  internal:
+    attachable: true