add backup labels for postgres and clickhouse

compose.yml

@@ -45,18 +45,37 @@ services:
       - POSTGRES_DB=plausible
     networks:
       - internal
+    deploy:
+      labels:
+        backupbot.backup: "true"
+        backupbot.backup.pre-hook: sh -c 'pg_dump -U "$$POSTGRES_USER" -Fc "$$POSTGRES_DB" | gzip > "/postgres.dump.gz"'
+        backupbot.backup.path: "/postgres.dump.gz"
+        backupbot.backup.post-hook: "rm -f /postgres.dump.gz"
+        backupbot.restore.post-hook: sh -c 'gzip -d /postgres.dump.gz && pg_restore -U "$$POSTGRES_USER" --dbname="$$PLAUSIBLE_DB" < /postgres.dump && rm /postgres.dump'
 
   plausible_events_db:
     image: clickhouse/clickhouse-server:23.4.2.11-alpine
     volumes:
       - event-data:/var/lib/clickhouse
+    entrypoint: /custom-entrypoint.sh
     configs:
       - source: clickhouse-config
         target: /etc/clickhouse-server/config.d/logging.xml
       - source: clickhouse-user-config
         target: /etc/clickhouse-server/users.d/clickhouse-user-config.xml
+      - source: clickhouse_entrypoint
+        target: /custom-entrypoint.sh
+        mode: 0555
     networks:
       - internal
+    deploy:
+      labels:
+        backupbot.backup: "true"
+        backupbot.backup.pre-hook: clickhouse-backup create events
+        backupbot.backup.path: "/var/lib/clickhouse/backup/events"
+        backupbot.backup.post-hook: "rm -rf /var/lib/clickhouse/backup/events"
+        backupbot.restore.post-hook: clickhouse-backup restore events
+        backupbot.resoter.post-hook: "rm -rf /var/lib/clickhouse/backup/events"
 
 volumes:
   db-data:
@@ -78,3 +97,6 @@ configs:
     name: ${STACK_NAME}_db_entrypoint_${DB_ENTRYPOINT_VERSION}
     file: entrypoint.postgres.sh.tmpl
     template_driver: golang
+  clickhouse_entrypoint:
+    name: ${STACK_NAME}_clickhouse_entrypoint_${CLICKHOUSE_ENTRYPOINT_VERSION}
+    file: entrypoint.clickhouse.sh