Better default values and readme clarification

values.yaml

@@ -10,22 +10,21 @@ fullnameOverride: ""
 
 env:
   normal:
-    DATABASE_URL:
     ENABLE_SOCIAL_AUTH: false
     GLITCHTIP_DOMAIN: https://example.com
   secret:
-    SECRET_KEY:
-    REDIS_URL:
+    SECRET_KEY: # Required
+    # DATABASE_URL: Specify if using external postgres (not managed by this chart)
+    # REDIS_URL: Specify if using external redis (not managed by this chart)
 
 web:
   replicaCount: 2
   autoscaling:
     enabled: false
-    minReplicas: 1
+    minReplicas: 2
     maxReplicas: 10
     targetCPUUtilizationPercentage: 80
     # targetMemoryUtilizationPercentage: 80
-
   budget:
     minAvailable: 1
   resources:
@@ -110,13 +109,12 @@ serviceAccount:
 
 redis:
   enabled: true
+  architecture: standalone
+  # auth:
+  #  password: # Set this to avoid remaking redis on each release
   master:
     persistence:
       enabled: false
-  replica:
-    replicaCount: 1
-    persistence:
-      enabled: false
 
 # Default to disabled, use a managed database service. But can be enabled here.
 postgresql: