Merge branch '208-postgres' into 'master'

postgres version

Closes #208

See merge request cyber5k/mistborn!94

base.yml

@@ -119,7 +119,7 @@ services:
     restart: unless-stopped
   
   redis:
-    image: redis:6.2-alpine
+    image: redis:5.0
     container_name: mistborn_production_redis
     restart: unless-stopped
 

compose/production/postgres/Dockerfile

@@ -1,4 +1,4 @@
-FROM postgres:13.3-alpine
+FROM postgres:11.3
 
 COPY ./compose/production/postgres/maintenance /usr/local/bin/maintenance
 RUN chmod +x /usr/local/bin/maintenance/*