Monitor EC2 Instance Using Nagios Tool Step by Step Guide. Nagios features are enhanced to monitor EC2 instances and S3 Bucket usage from Nagios Core and NagiosXi.

In order to monitor Ec2 instances we have to use, Boto is the Amazon Web Services (AWS) SDK for Python, which allows Python developers to write software that makes use of Amazon services like S3 and EC2. Boto provides an easy to use, object-oriented API as well as low-level direct service access.

Monitor EC2 Instance Using Nagios

To see this options in NagiosXi version should xi-5.5.x

Before configuring the Amazon EC2 instance monitor install required dependency packages

# yum install python-pip python-setuptools
# pip install boto3

pip will install below packages

Installing collected packages: urllib3, jmespath, python-dateutil, simplejson, docutils, ordereddict, botocore, futures, s3transfer, boto3

Login to AWS Console and create new user with programmatic access

Services –> IAM –> Add User

Click Next: Permissions

Attach the existing policy if you have otherwise create new policy with read-only access to AWS EC2 and S3

Next: Tags

Provide appropriate tag information and click Next:Review

Create User

Download Access Key ID and Secret Access Key to authenticate against AWS console using API/SDK

Nagios Console Configuration

Now Login to NagiosXI web and navigate to Configure –> Configuration Wizards

Select Amazon EC2

copy and paste Access Key ID and Secret Access Key. Click Get Available Instances

Select the instances you wanted to monitor

Next and Finish

Note: Nagios to Amazon EC2 and vice versa network route should be in reachable state and ports need to enable in Security groups

Below are the default checks

• CPU Credit-Balance / Credit-Usage / Utilization
• Disk Read-Bytes / Read-Ops / Write
• Network Packets In / Out
• Status of Instance

That’s it about monitor EC2 instance using Nagios Tool Step by Step Guide.

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