Update Docker configurations

Author: nguye

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM openjdk:8-jdk-alpine
+FROM openjdk:11.0.13-jre-buster
 ARG JAR_FILE=target/BootForum-*.war
 COPY ${JAR_FILE} BootForum.war
 ENTRYPOINT ["java","-jar","/BootForum.war"]

docker-compose.yml

@@ -3,7 +3,7 @@ version: '2'
 services:
   app:
     image: 'ch3nguyen/bootforum:latest'
-    container_name: app
+    container_name: bootforum
     depends_on:
       db:
         condition: service_healthy 
@@ -13,14 +13,19 @@ services:
       - SPRING_DATASOURCE_URL=jdbc:postgresql://db:5432/BootForum
       - SPRING_DATASOURCE_USERNAME=BootForum
       - SPRING_DATASOURCE_PASSWORD=secret
+      - File.uploadDirectory=/var/BootForum/files
+      - Lucene.indexDirectory=/var/BootForum/index
     ports:
       - 8080:8080
     volumes:
-      - ./bootforum/files:/tmp/BootForum/files
+      # map the host's current-directory/BootForum to app's BootForum/files & BootForum/index 
+      - ./BootForum/files:/var/BootForum/files
+      - ./BootForum/index:/var/BootForum/index
   db:
     container_name: postgres
     image: 'postgres:13.1-alpine'
     volumes:
+      # map the host's current-directory/postresql/data to postgresql's data 
       - ./postgresql/data:/var/lib/postgresql/data
     environment:
       - POSTGRES_USER=BootForum