Added 3 setup

README.md

@@ -1,3 +1,54 @@
 ## Polyphonic
 
-A simple web app for managing video uploads to an S3 bucket for virtual ensembles.
+A simple web app for managing video uploads to an S3 bucket for virtual ensembles.
+
+### S3 Setup
+
+#### Bucket setup [virtual-orchestra]
+Default block public access
+
+Permissions -> CORS
+```xml
+<?xml version="1.0" encoding="UTF-8"?>
+<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+<CORSRule>
+    <AllowedOrigin>https://polyphonic.mydomain.com</AllowedOrigin>
+    <AllowedMethod>PUT</AllowedMethod>
+    <AllowedMethod>POST</AllowedMethod>
+    <AllowedMethod>DELETE</AllowedMethod>
+    <ExposeHeader>Location</ExposeHeader>
+    <AllowedHeader>*</AllowedHeader>
+</CORSRule>
+<CORSRule>
+    <AllowedOrigin>*</AllowedOrigin>
+    <AllowedMethod>GET</AllowedMethod>
+</CORSRule>
+</CORSConfiguration>
+```
+
+User
+Create with programatic access (copy keys) and an inline policy for the bucket.
+```json
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Effect": "Allow",
+            "Action": [
+                "s3:ListBucket"
+            ],
+            "Resource": "arn:aws:s3:::virtual-orchestra"
+        },
+        {
+            "Effect": "Allow",
+            "Action": [
+                "s3:PutObject",
+                "s3:GetObject"
+            ],
+            "Resource": "arn:aws:s3:::virtual-orchestra/*"
+        }
+    ]
+}
+```
+
+3.