simplify docker configuration

README.md

@@ -70,7 +70,7 @@ Each configuration key can have a different format depending if it's from the en
 
 ### Mandatory configuration
 
-In order to make Komga run, you need to specify some mandatory configuration keys:
+In order to make Komga run, you need to specify some mandatory configuration keys (unless you use Docker, in which case defaults are setup):
 
 - `SPRING_PROFILES_ACTIVE` / `spring.profiles.active`: `prod` - this will enable the database management and upgrades for new versions.
 - `SPRING_DATASOURCE_URL` / `spring.datasource.url`: the path of the database file. For Docker I use `jdbc:h2:/config/database.h2;DB_CLOSE_DELAY=-1`, where `/config/database.h2` is the actual file inside the docker container. You can customize this part if running without docker.

doc/docker-compose.yml

@@ -11,10 +11,6 @@ services:
     ports:
       - 8090:8080
     environment:
-      - SPRING_PROFILES_ACTIVE=prod
-      - SPRING_DATASOURCE_URL=jdbc:h2:/config/database.h2;DB_CLOSE_DELAY=-1
-      - KOMGA_ROOT_FOLDER=/books
-      - KOMGA_ROOT_FOLDER_SCAN_CRON=0 0 * * * ? # periodic scan every hour
       - KOMGA_USER_PASSWORD=your-admin-password
       - KOMGA_ADMIN_PASSWORD=your-user-password
     restart: unless-stopped

komga/Dockerfile

@@ -4,4 +4,5 @@ ARG DEPENDENCY=target/dependency
 COPY ${DEPENDENCY}/BOOT-INF/lib /app/lib
 COPY ${DEPENDENCY}/META-INF /app/META-INF
 COPY ${DEPENDENCY}/BOOT-INF/classes /app
+ENV SPRING_PROFILES_ACTIVE=docker
 ENTRYPOINT ["java","-cp","app:app/lib/*","org.gotson.komga.ApplicationKt"]

komga/src/main/resources/application-docker.yml

@@ -0,0 +1,8 @@
+spring:
+  profiles:
+    include: prod
+  datasource:
+    url: jdbc:h2:/config/database.h2;DB_CLOSE_DELAY=-1
+komga:
+  root-folder: /books
+  root-folder-scan-cron: "0 */15 * * * ?"