Streamline config and switch to pg15

compose-db-only.yml

@@ -0,0 +1,47 @@
+services:
+  db:
+    container_name: db-pg
+    image: docker.io/library/postgres:13
+    restart: unless-stopped
+    volumes:
+      - /volume1/docker/paperless-ngx/pgdata:/var/lib/postgresql/data
+    environment:
+      POSTGRES_DB: paperless
+      POSTGRES_USER: paperless
+      POSTGRES_PASSWORD: paperless
+
+  db-15:
+    container_name: paperless-postgres-db
+    image: postgres:15-alpine
+    restart: unless-stopped
+    volumes:
+      - paperless-postgres-db:/var/lib/postgresql/data
+    environment:
+      POSTGRES_DB: paperless
+      POSTGRES_USER: ppldbuser
+      POSTGRES_PASSWORD: "!Wvnzo3#S57KF0bDF"
+
+  db-backup:
+    image: postgres:latest
+    env_file: ./paperless-backup.env
+    volumes:
+      - ./database-dump:/dump
+      - /etc/localtime:/etc/localtime:ro
+    entrypoint: |
+      bash -c 'bash -s <<EOF
+      trap "break;exit" SIGHUP SIGINT SIGTERM
+      sleep 2m
+      while /bin/true; do
+        pg_dump -Fc > /dump/dump_\`date +%d-%m-%Y"_"%H_%M_%S\`.psql
+        (ls -t /dump/dump*.psql|head -n $$BACKUP_NUM_KEEP;ls /dump/dump*.psql)|sort|uniq -u|xargs rm -- {}
+        sleep $$BACKUP_FREQUENCY
+      done
+      EOF'
+
+volumes:
+  data:
+  media:
+  pgdata:
+  paperless-postgres-db:
+    name: paperless-postgres-db
+  redisdata: