Add architecture review and wiki draft

temp/cloud.env.example

@@ -0,0 +1,24 @@
+# Copy this file to `.env` on the target server and populate real values there.
+# Keep the real `.env` out of version control.
+
+INFLUXDB_ADMIN_USER=replace-me
+INFLUXDB_ADMIN_PASSWORD=replace-me
+INFLUXDB_BUCKET=lvl0
+INFLUXDB_ORG=wbd
+
+GF_SECURITY_ADMIN_USER=replace-me
+GF_SECURITY_ADMIN_PASSWORD=replace-me
+
+NPM_DB_MYSQL_HOST=db
+NPM_DB_MYSQL_PORT=3306
+NPM_DB_MYSQL_USER=npm
+NPM_DB_MYSQL_PASSWORD=replace-me
+NPM_DB_MYSQL_NAME=npm
+
+MYSQL_ROOT_PASSWORD=replace-me
+MYSQL_DATABASE=npm
+MYSQL_USER=npm
+MYSQL_PASSWORD=replace-me
+
+RABBITMQ_DEFAULT_USER=replace-me
+RABBITMQ_DEFAULT_PASS=replace-me