Chore: Review docker issues (#787)

* Fix docker issues

Addresses: #701

* Add action cable configurations

Co-authored-by: Sony Mathew <ynos1234@gmail.com>

.env.example

@@ -1,12 +1,17 @@
-SECRET_KEY_BASE=
+# Used to verify the integrity of signed cookies. so ensure a secure value is set
+SECRET_KEY_BASE=replace_with_lengthy_secure_hex
+
+# Replace with the URL you are planning to use for your app
+FRONTEND_URL=http://0.0.0.0:3000
+
 # Force all access to the app over SSL, default is set to false
-FORCE_SSL=
+FORCE_SSL=false
 
 # This lets you control new sign ups on your chatwoot installation
 # true : default option, allows sign ups
 # false : disables all the end points related to sign ups
 # api_only: disables the UI for signup, but you can create sign ups via the account apis
-ENABLE_ACCOUNT_SIGNUP= 
+ENABLE_ACCOUNT_SIGNUP=true
 
 # Redis config
 REDIS_URL=redis://redis:6379
@@ -41,8 +46,7 @@ RAILS_INBOUND_EMAIL_PASSWORD=
 MAILGUN_INGRESS_SIGNING_KEY=
 MANDRILL_INGRESS_API_KEY=
 
-# Misc
-FRONTEND_URL=http://0.0.0.0:3000
+# Storage
 ACTIVE_STORAGE_SERVICE=local
 
 # Amazon S3
@@ -55,6 +59,8 @@ AWS_REGION=
 SENTRY_DSN=
 
 # Log settings
+# Disable if you want to write logs to a file
+RAILS_LOG_TO_STDOUT=true
 LOG_LEVEL=info
 LOG_SIZE=500