Altered docker compose file to be parameterized.

gemp-lotr/docker/.env

@@ -0,0 +1,15 @@
+SERVID=1
+COMPOSE_PROJECT_NAME=gemp_${SERVID}
+
+APP_CONTAINER_NAME=gemp_app_${SERVID}
+APP_IP=172.28.${SERVID}.2
+APP_PORT=17001
+
+DB_CONTAINER_NAME=gemp_db_${SERVID}
+DB_IP=172.28.${SERVID}.3
+DB_PORT=35001
+
+MYSQL_ROOT_PASSWORD=rootpass
+MYSQL_DATABASE=gemp_db
+MYSQL_USER=gempuser
+MYSQL_PASSWORD=gemppassword

gemp-lotr/docker/docker-compose.yml

@@ -1,10 +1,11 @@
 version: "3.4"
 
 services:
-  
-  
+
   build:
-    container_name: gemp_app_1
+    env_file:
+      - .env
+    container_name: ${APP_CONTAINER_NAME}
     build: 
       context: .
       dockerfile: gemp_app.Dockerfile
@@ -17,7 +18,7 @@ services:
         # target means in the container
       - target: 80
         # published is what's on the host machine
-        published: 17001
+        published: "${APP_PORT}"
     volumes:
        - type: bind
          source: ../gemp-lotr-async/src/main/web
@@ -29,14 +30,16 @@ services:
          source: ../gemp-lotr-async/src/main/web
          target: /var/www/localhost/htdocs/gemp-lotr #/etc/apache2/htdocs/gemp-lotr
     networks:
-      gemp_net_1:
-        ipv4_address: 172.28.1.2
+      gemp_net:
+        ipv4_address: ${APP_IP}
     tty: true
     #command: nohup java -jar /etc/gemp-lotr/gemp-lotr-async/target/web.jar &
 
 
   db:
-    container_name: gemp_db_1
+    env_file:
+      - .env
+    container_name: ${DB_CONTAINER_NAME}
     build: 
       context: ..
       dockerfile: docker/gemp_db.Dockerfile
@@ -45,25 +48,20 @@ services:
         # target means in the container
       - target: 3306
         # published is what's on the host machine
-        published: 35001
+        published: "${DB_PORT}"
     restart: always
     volumes:
        - type: bind
          source: ../../database
          target: /var/lib/mysql
     networks:
-      gemp_net_1:
-        ipv4_address: 172.28.1.3
-    environment:
-      MYSQL_ROOT_PASSWORD: rootpass
-      MYSQL_DATABASE: gemp_db
-      MYSQL_USER: gempuser
-      MYSQL_PASSWORD: gemppassword
+      gemp_net:
+        ipv4_address: ${DB_IP}
       
   
 networks:
-  gemp_net_1:
+  gemp_net:
     ipam:
       driver: default
       config:
-        - subnet: 172.28.1.0/16
+        - subnet: 172.28.0.0/16