Support Fluentbit to CloudWatch logs (#140)

* Import and customize fluenbit add-on

* Enable fluent bit logs

* Bump helm addon version

* Dropping account id as it seems to create scraping errors

* Create separate log groups per namespace

* Apply pre-commit

* Remove conflicting global label

* Add config object for logs

* Enable logs in examples

* Add logs docs

* Fix broken link

* Add screenshots

* Update docs

* Typos

modules/eks-monitoring/variables.tf

@@ -247,3 +247,21 @@ variable "nginx_config" {
     prometheus_metrics_endpoint = "metrics"
   }
 }
+
+variable "enable_logs" {
+  description = "Using AWS For FluentBit to collect cluster and application logs to Amazon CloudWatch"
+  type        = bool
+  default     = true
+}
+
+variable "logs_config" {
+  description = "Configuration object for logs collection"
+  type = object({
+    cw_log_retention_days = number
+  })
+
+  default = {
+    # Valid values are  [1, 3, 5, 7, 14, 30, 60, 90, 120, 150, 180, 365, 400, 545, 731, 1827, 3653]
+    cw_log_retention_days = 90
+  }
+}