Use XDG_CACHE_HOME to control cache dir

Dockerfile

@@ -5,6 +5,7 @@ RUN apk update && apk add python3 dcron mariadb-client postgresql-client
 ADD . /restic-compose-backup
 WORKDIR /restic-compose-backup
 RUN pip3 install -U pip setuptools && pip3 install -e .
+ENV XDG_CACHE_HOME=/cache
 
 ENTRYPOINT []
 CMD ["./entrypoint.sh"]

docker-compose.yaml

@@ -9,8 +9,8 @@ services:
       - /var/run/docker.sock:/tmp/docker.sock:ro
       # Map backup database locally
       - ./restic_data:/restic_data
-      - ./restic_cache:/restic_cache
-      # Map in project source
+      - ./restic_cache:/cache
+      # Map in project source in dev
       - .:/restic-compose-backup
   web:
     image: nginx

restic_compose_backup/restic.py

@@ -97,8 +97,6 @@ def restic(repository: str, args: List[str]):
     """Generate restic command"""
     return [
         "restic",
-        "--cache-dir",
-        "/restic_cache",
         "-r",
         repository,
     ] + args