Infra documentation (#290)

* Add external access S3 bucket service key creation

* Indentation

infrastructure_setup.md

@@ -21,6 +21,11 @@
 
   `cf bind-service dluhc-core-staging dluhc-core-staging-export-bucket -c '{"permissions": "read-write"}'`
 
+6. Create a service keys for accessing the S3 bucket from outside Gov PaaS:\
+  `cf create-service-key dluhc-core-staging-import-bucket data-import -c '{"allow_external_access": true}'`
+
+  `cf create-service-key dluhc-core-staging-export-bucket data-export -c '{"allow_external_access": true, "permissions": "read-only"}'`
+
 
 # Production
 
@@ -44,3 +49,8 @@
   `cf bind-service dluhc-core-production dluhc-core-production-import-bucket -c '{"permissions": "read-only"}'`
 
   `cf bind-service dluhc-core-production dluhc-core-production-export-bucket -c '{"permissions": "read-write"}'`
+
+6. Create a service keys for accessing the S3 bucket from outside Gov PaaS:\
+  `cf create-service-key dluhc-core-production-import-bucket data-import -c '{"allow_external_access": true}'`
+
+  `cf create-service-key dluhc-core-production-export-bucket data-export -c '{"allow_external_access": true, "permissions": "read-only"}'`