---
AWSTemplateFormatVersion: "2010-09-09"

Parameters:
  SAPPASHOST:
    Description: "SAP Primary Application Host Instance ID"
    Type: String

Resources:
  SSMRunCommandDocument:
    Type: AWS::SSM::Document
    Properties:
      DocumentType: 'Command'
      Content:
        schemaVersion: '2.2'
        description: "Some description"
        mainSteps:
          - action: "aws:runShellScript"
            name: runShellScript
            inputs:
              runCommand:
                - INSTANCE_ID=$(curl -s http://169.254.169.254/latest/meta-data/instance-id)
                - COUNT=$(/usr/bin/ps -ef|grep dw.sap|grep pf=|wc -l)
                - echo $COUNT
                - if [ $COUNT -eq 0 ]
                - then
                - echo "SAP is down"
                - aws cloudwatch put-metric-data --metric-name SAP-Dispatcher-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $COUNT
                - else
                - echo "SAP is up"
                - aws cloudwatch put-metric-data --metric-name SAP-Dispatcher-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $COUNT
                - fi
                - IGS=$(/usr/bin/ps -ef|grep sap|grep ig.sap|grep pf=|wc -l)
                - echo $IGS
                - if [ $IGS -eq 0 ]
                - then
                - echo "SAP IGS Service are down"
                - aws cloudwatch put-metric-data --metric-name SAP-IGS-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $IGS
                - else
                - echo " SAP IGS Service are up"
                - aws cloudwatch put-metric-data --metric-name SAP-IGS-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $IGS
                - fi
                - GATEWAY=$(/usr/bin/ps -ef|grep sap|grep gwrd|grep pf=|wc -l)
                - echo $GATEWAY
                - if [ $GATEWAY -eq 0 ]
                - then
                - echo "SAP Gateway Services down"
                - aws cloudwatch put-metric-data --metric-name SAP-Gateway-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $GATEWAY
                - else
                - echo "SAP Gateway Services are up"
                - aws cloudwatch put-metric-data --metric-name SAP-Gateway-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $GATEWAY
                - fi
                - ICM=$(/usr/bin/ps -ef|grep sap|grep icman|grep pf=|wc -l)
                - echo $ICM
                - if [ $ICM -eq 0 ]
                - then
                - echo "SAP ICM Services are down"
                - aws cloudwatch put-metric-data --metric-name SAP-ICM-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $ICM
                - else
                - echo "SAP ICM Services are up"
                - aws cloudwatch put-metric-data --metric-name SAP-ICM-Status --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $ICM
                - fi
                - MEMUSAGE=$(free -m|awk '/^Mem:/{print 100*$3/$2}')
                - echo $MEMUSAGE
                - aws cloudwatch put-metric-data --metric-name SAP-Host-Memory-Usage --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $MEMUSAGE
                - DISKUSAGE=$(df -hP /usr/sap | awk '{print $5}' |tail -1|sed 's/%$//g')
                - echo $DISKUSAGE
                - aws cloudwatch put-metric-data --metric-name SAP-Disc-usage --dimensions Instance=$INSTANCE_ID --namespace "Custom" --value $DISKUSAGE

  CloudWatchEventRule:
    Type: AWS::Events::Rule
    Properties:
      Description: "The ARN from the eventbridge role resource"
      RoleArn: !Sub "arn:aws:iam::${AWS::AccountId}:role/EVENT-RULE-ROLE"
      ScheduleExpression: rate(1 minute)
      State: ENABLED
      Targets:
        - Id: PasMonId
          Arn: !Sub "arn:${AWS::Partition}:ssm:${AWS::Region}:${AWS::AccountId}:document/${SSMRunCommandDocument}"
          RoleArn: !Sub "arn:aws:iam::${AWS::AccountId}:role/SSM-DOCUMENT-ROLE"
          RunCommandParameters:
            RunCommandTargets:
             - Key: InstanceIds
               Values:
                 - !Ref SAPPASHOST