MON-76: Add Readme

cloud/azure/redis/README.md

@@ -0,0 +1,32 @@
+Azure Redis DataDog monitors
+============================
+
+How to use this module
+----------------------
+
+```
+module "datadog-monitors-azure-redis" {
+  source = "git::ssh://git@bitbucket.org/morea/terraform.feature.datadog.git//cloud/azure/redis?ref={revision}"
+
+  message = "${module.datadog-message-alerting.alerting-message}"
+
+  environment = "${var.environment}"
+  client_name = "${var.client_name}"
+}
+```
+
+Purpose
+-------
+Creates a DataDog monitors with the following checks :
+
+* Service status check
+* Evicted keys count check
+* Processor time (percent) threshold
+* Server CPU load threshold
+
+Related documentation
+---------------------
+
+DataDog documentation: https://docs.datadoghq.com/integrations/azure_redis_cache/
+
+Azure Redis metrics documentation: https://docs.microsoft.com/en-us/azure/redis-cache/cache-how-to-monitor