From 4d8f9d42f43940ee181293e4df38bdb5e84c20c8 Mon Sep 17 00:00:00 2001
From: Dmitry Dementev <me@dementev.space>
Date: Sat, 7 Feb 2026 21:53:52 +0300
Subject: [PATCH] feat(infra): add clickhouse data persistence volume

Add persistent volume for ClickHouse to preserve data across container
restarts. The volume `clickhouse-data` is mounted to `/var/lib/clickhouse`,
ensuring data remains when containers are recreated.
---
 README.md          | 3 +++
 docker-compose.yml | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index f57eb32..a9bf2fc 100644
--- a/README.md
+++ b/README.md
@@ -140,6 +140,9 @@ flowchart TB
 | `FULL=1 make data` | Загрузить полный датасет |
 | `make transform` | Запустить batch-процесс |
 
+> Примечание: данные ClickHouse теперь сохраняются в Docker volume `clickhouse-data`.  
+> `docker compose down` сохраняет данные, `docker compose down -v` удаляет все volume (включая ClickHouse).
+
 ---
 
 ## 🔗 Ключи данных
diff --git a/docker-compose.yml b/docker-compose.yml
index 976d03f..8a39681 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -20,6 +20,7 @@ services:
     networks:
       - cs_dwh
     volumes:
+      - clickhouse-data:/var/lib/clickhouse
       - ./configs/default_user.xml:/etc/clickhouse-server/users.d/default_user.xml
       # - ./configs/z_config.xml:/etc/clickhouse-server/config.d/z_config.xml
       # - ./configs/macros_ch1.xml:/etc/clickhouse-server/config.d/macros.xml
@@ -235,9 +236,9 @@ networks:
     driver: bridge
 
 volumes:
+  clickhouse-data:
   grafana_lib:
   kafka-data:
   pgmeta:
   superset_data:
   superset_config:
-