Mount the required volume

.dockerignore

@@ -7,3 +7,4 @@ README.md
 *.tar
 docker-compose.yml
 docker-compose.yml.example
+data/

.gitignore

@@ -66,3 +66,4 @@ target/
 .python-version
 
 *.tar
+data/

docker-compose.yml.example

@@ -4,6 +4,7 @@ version: '2'
 services:
   base:
     build: .
+    restart: unless-stopped
     environment:
       # Run `docker-compose run web config generate-secret-key`
       # to get the SENTRY_SECRE_KEY value.
@@ -11,18 +12,24 @@ services:
       - SENTRY_MEMCACHED_HOST=memcached
       - SENTRY_REDIS_HOST=redis
       - SENTRY_POSTGRES_HOST=postgres
+    volumes:
+      - ./data:/var/lib/sentry/files
 
   memcached:
     image: memcached:1.4
+    restart: unless-stopped
 
   redis:
     image: redis:3.0-alpine
+    restart: unless-stopped
 
   postgres:
     image: postgres:9.5
+    restart: unless-stopped
 
   web:
     extends: base
+    restart: unless-stopped
     links:
       - redis
       - postgres
@@ -33,6 +40,7 @@ services:
   cron:
     extends: base
     command: celery beat
+    restart: unless-stopped
     links:
       - redis
       - postgres
@@ -41,6 +49,7 @@ services:
   worker:
     extends: base
     command: celery worker
+    restart: unless-stopped
     links:
       - redis
       - postgres