Implement base operator (#1)

Add base operator logic

Reviewed-on: #1

src/policy_template.json

@@ -0,0 +1,17 @@
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Sid": "ListObjectsInBucket",
+      "Effect": "Allow",
+      "Action": ["s3:ListBucket"],
+      "Resource": ["arn:aws:s3:::{{ bucket }}"]
+    },
+    {
+      "Sid": "AllObjectActions",
+      "Effect": "Allow",
+      "Action": ["s3:DeleteObject", "s3:Get*", "s3:PutObject", "s3:*Object"],
+      "Resource": ["arn:aws:s3:::{{ bucket }}/*"]
+    }
+  ]
+}