AWS Lambda

Pack Assets

Templates

The Centreon Monitoring Connector AWS Lambda brings a host template:

• Cloud-Aws-Lambda-custom

It brings the following service template:

Service Alias	Service Template	Service Description	Default
Lambda-Invocations	Cloud-Aws-Lambda-Invocations-Api	Check Memcached performances	X

Discovery rules

The pack provides a discovery rule to automatically discover Lambda resources:

More information about the Host Discovery module is available in the Centreon documentation: Host Discovery

Collected metrics & status

Lambda-Invocations

Metric Name	Unit
lambda.function.duration.milliseconds	ms
lambda.function.invocations.count	count
lambda.function.errors.count	count
lambda.function.deadlettererrors.count	count
lambda.function.throttles.count	count
lambda.function.iteratorage.milliseconds	count

Prerequisites

AWS Configuration

Configure a service account (access/secret key combo) for which the following privileges have to be granted:

AWS Privilege	Description
lamdba:ListFunctions	Get a list of Lambda function
cloudwatch:getMetricStatistics	Get metrics from the AWS/EC2 namespace on Cloudwatch.

Plugin dependencies

To interact with Amazon APIs, you can use either use the awscli binary provided by Amazon or paws, a Perl AWS SDK (recommended). You must install it on every poller expected to monitor AWS resources.

For now, it is not possible to use paws if you are using a proxy to reach AWS Cloudwatch APIs.

perl-Paws-installation

yum install perl-Paws

aws-cli-installation

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install

Setup

Online License

1. Install the package on every Centreon poller expected to monitor AWS Lambda resources:

yum install centreon-plugin-Cloud-Aws-Lambda-Api

2. On the Centreon web interface, on page Configuration > Monitoring Connector Manager, install the AWS Lambda Centreon Monitoring Connector.

Offline License

1. Install the package on every Centreon poller expected to monitor AWS Lambda resources:

yum install centreon-plugin-Cloud-Aws-Lambda-Api

2. Install the AWS Lambda Centreon Monitoring Connector RPM on the Centreon central server:

yum install centreon-pack-cloud-aws-lambda

3. On the Centreon web interface, on page Configuration > Monitoring Connector Manager, install the AWS Lambda Centreon Monitoring Connector.

Configuration

Host

• Log into Centreon and add a new host through Configuration > Hosts.
• In the IP Address/DNS field, set the following IP address: 127.0.0.1.
• Aplly the Cloud-Aws-Lambda-custom template to the host.
• Once the template is applied, fill in the corresponding macros. Some macros are mandatory.

Mandatory	Nom	Description
X	AWSSECRETKEY	AWS Secret key of your IAM role. Password checkbox must be checked
X	AWSACESSKEY	AWS Access key of your IAM role. Password checkbox must be checked
X	AWSREGION	Region where the instance is running
X	AWSCUSTOMMODE	Custom mode to get metrics, 'awscli' is the default, you can also use 'paws' perl library
	PROXYURL	Configure proxy URL
	FUNCTIONNAME	Function name (Default : '.*')
	EXTRAOPTIONS	Any extra option you may want to add to every command line (eg. a --verbose flag)
	DUMMYSTATUS	Host state. Default is OK, do not modify it unless you know what you are doing
	DUMMYOUTPUT	Host check output. Default is 'This is a dummy check'. Customize it with your own if needed

How to check in the CLI that the configuration is OK and what are the main options for?

Once the plugin is installed, log into your Centreon poller's CLI using the centreon-engine user account (su - centreon-engine) and test the plugin by running the following command:

/usr/lib/centreon/plugins//centreon_aws_lambda_api.pl \
    --plugin=cloud::aws::lambda::plugin \
    --mode=invocations \
    --custommode='awscli' \
    --aws-secret-key='' \
    --aws-access-key='' \
    --region='eu-west-1' \
    --proxyurl='' \
    --filter-metric='' \
    --timeframe='600' \
    --period='60' \
    --name='myfunctions' \
    --zeroed \
    --verbose

The expected command output is shown below:

OK: Function 'myfunctions' All metrics are ok | 'myfunctions~average#lambda.function.throttles.count'=0.00;;;; 'myfunctions~average#lambda.function.errors.count'=0.00;;;; 'myfunctions~average#lambda.function.iteratorage.milliseconds'=0.00;;;; 'myfunctions~average#lambda.function.invocations.count'=0.00;;;; 'myfunctions~average#lambda.function.deadlettererrors.count'=0.00;;;; 'myfunctions~average#lambda.function.duration.milliseconds'=0.00;;;; 'myfunctions~sum#lambda.function.throttles.count'=0.00;;;; 'myfunctions~sum#lambda.function.errors.count'=0.00;;;; 'myfunctions~sum#lambda.function.iteratorage.milliseconds'=0.00;;;; 'myfunctions~sum#lambda.function.invocations.count'=0.00;;;; 'myfunctions~sum#lambda.function.deadlettererrors.count'=0.00;;;; 'myfunctions~sum#lambda.function.duration.milliseconds'=0.00;;;;
Checking Function 'myfunctions'
    Statistic 'Average' Metrics Throttles: 0.00, Errors: 0.00, Iterator Age: 0.00, Invocations: 0.00, Dead Letter Errors: 0.00, Duration: 0.00
    Statistic 'Sum' Metrics Throttles: 0.00, Errors: 0.00, Iterator Age: 0.00, Invocations: 0.00, Dead Letter Errors: 0.00, Duration: 0.00

All available options for a given mode can be displayed by adding the --help parameter to the command:

/usr/lib/centreon/plugins//centreon_aws_lambda_api.pl \
    --plugin=cloud::aws::lambda::plugin \
    --mode=invocations \
    --help

All available modes can be displayed by adding the --list-mode parameter to the command:

/usr/lib/centreon/plugins//centreon_aws_lambda_api.pl \
    --plugin=cloud::aws::lambda::plugin \
    --list-mode

Troubleshooting

Please find the troubleshooting documentation for Centreon Plugins typical issues.