AWS ECS cluster monitor

Objective
Get metrics of AWS ECS cluster Memory & CPU.
Usage
./ecs_cluster_memory_cpu.py [-h] [--namespace NAMESPACE] [--metricname METRICNAME] [--clustername CLUSTERNAME]
[--servicename SERVICENAME] [--period PERIOD] [--statistics STATISTICS]
[--unit UNIT] [--ok_threshold OK_THRESHOLD] [--warning_threshold WARNING_THRESHOLD]
[--critical_threshold CRITICAL_THRESHOLD]
Arguments
-h, --help
Show this help message and exit

--namespace NAMESPACE
CloudWatch namespaces are containers for metrics.
For example: AWS/ECS

--metricname METRICNAME
Metrics are data about the performance of your systems.
For example: MemoryUtilization

--clustername CLUSTERNAME
This dimension filters the data you request for all resources in a specified cluster.

--period PERIOD
A period is the length of time associated with a specific Amazon CloudWatch statistic.
For example: to specify a period of 5 minutes, use 300 as the period value.

--statistics STATISTICS
Statistics are metric data aggregations over specified periods of time.
For example: Average

--unit UNIT
Each statistic has a unit of measure.
For example: Percent

--ok_threshold OK_THRESHOLD
Threshold which reflects the OK status value. (Recommended threshold: 70)

--warning_threshold WARNING_THRESHOLD
Threshold which reflects the Warning status value. (Recommended threshold: 70)

--critical_threshold CRITICAL_THRESHOLD
Threshold which reflects the Critical status value. (Recommended threshold: 80)