Switch to host networking to avoid Docker bridge crash

docker-compose.yml

@@ -4,8 +4,8 @@ services:
   mariadb:
     image: mariadb:10.11.11
     container_name: mariadb
-    ports:
-      - "3306:3306"
+    # Host networking means this container listens on the host’s 3306
+    network_mode: "host"
     environment:
       MYSQL_ROOT_PASSWORD: comsc
       MYSQL_DATABASE: healthcare
@@ -16,31 +16,23 @@ services:
         limits:
           cpus: '1'
           memory: 1024M
-    networks:
-      - healthcare_network
 
   healthcare_01:
     build:
       context: .
       dockerfile: Docker/Dockerfile
     container_name: healthcare_01
+    # Shares the host network, so no port mapping is needed
+    network_mode: "host"
     environment:
-      - DB_URL=jdbc:mariadb://mariadb:3306/healthcare?createDatabaseIfNotExist=true
-      - SPRING_DATASOURCE_URL=jdbc:mariadb://mariadb:3306/healthcare?createDatabaseIfNotExist=true
+      - DB_URL=jdbc:mariadb://localhost:3306/healthcare?createDatabaseIfNotExist=true
+      - SPRING_DATASOURCE_URL=jdbc:mariadb://localhost:3306/healthcare?createDatabaseIfNotExist=true
       - SPRING_DATASOURCE_USERNAME=root
       - SPRING_DATASOURCE_PASSWORD=comsc
-    ports:
-      - "8080:8080"
     deploy:
       resources:
         limits:
           cpus: '1'
           memory: 1536M
-    networks:
-      - healthcare_network
     depends_on:
       - mariadb
-
-networks:
-  healthcare_network:
-    name: healthcare_net
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