Added persistent postgres data volume

docker-compose.yml

@@ -1,8 +1,12 @@
 # See https://docs.flagsmith.com/deployment/docker for more information on running Flagsmith in Docker
 # This will docker-compose file will run the entire Flagsmith Platform in Docker
-# Uncomment and configure InfluxDB lines below (not neccesary but adds some functionality that requires InfluxDB)
+# Uncomment and configure InfluxDB lines below (not necessary but adds some functionality that requires InfluxDB)
+
+version: "3"
+
+volumes:
+    pgdata:
 
-version: '3'
 services:
     postgres:
         image: postgres:11.12-alpine
@@ -10,6 +14,8 @@ services:
             POSTGRES_PASSWORD: password
             POSTGRES_DB: flagsmith
         container_name: flagsmith_postgres
+        volumes:
+            - pgdata:/var/lib/postgresql/data
 
     flagsmith:
         image: flagsmith/flagsmith:latest
@@ -18,10 +24,9 @@ services:
             # API: https://docs.flagsmith.com/deployment/locally-api#environment-variables
             # UI: https://docs.flagsmith.com/deployment/locally-frontend#environment-variables
 
-        
-            DJANGO_ALLOWED_HOSTS: '*' # Change this in production
+            DJANGO_ALLOWED_HOSTS: "*" # Change this in production
             DATABASE_URL: postgresql://postgres:password@postgres:5432/flagsmith
-            DISABLE_INFLUXDB_FEATURES: 'true' # set to 'false' to enable InfluxDB 
+            DISABLE_INFLUXDB_FEATURES: "true" # set to 'false' to enable InfluxDB
 
             ENV: prod # set to "prod" in production.
 
@@ -45,10 +50,8 @@ services:
             # ENABLE_ADMIN_ACCESS_USER_PASS: True # set to True to enable access to the /admin/ Django backend via your username and password
             # ALLOW_REGISTRATION_WITHOUT_INVITE: True
 
-            
-            
         ports:
-            - '8000:8000'
+            - "8000:8000"
         depends_on:
             - postgres
             # - influxdb