Amazon SNS

Connector dependencies

The following monitoring connectors will be installed when you install the Amazon SNS connector through the Configuration > Monitoring Connector Manager menu:

• Base Pack

Pack assets

Templates

The Monitoring Connector Amazon SNS brings a host template:

• Cloud-Aws-Sns-custom

The connector brings the following service templates (sorted by the host template they are attached to):

Cloud-Aws-Sns-custom

Service Alias	Service Template	Service Description
Sns-Topic-Notifications	Cloud-Aws-Sns-Topic-Notifications-Api-custom	Check Amazon SNS notifications per topic

The services listed above are created automatically when the Cloud-Aws-Sns-custom host template is used.

Discovery rules

Host discovery

Rule name	Description
Amazon Web Service SNS	Discover AWS SNS Topics

More information about discovering hosts automatically is available on the dedicated page.

Collected metrics & status

Here is the list of services for this connector, detailing all metrics and statuses linked to each service.

Sns-Topic-Notifications

Name	Unit
sns.notifications.published.count	count
sns.notifications.delivered.count	count
sns.notifications.failed.count	count
sns.notifications.filtered.count	count

Prerequisites

AWS Configuration

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

• cloudwatch:getMetricStatistics
• cloudwatch:listMetrics
• sns:ListTopics

Plugin dependencies

To interact with the 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 the 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

Installing the monitoring connector

Pack

1. If the platform uses an online license, you can skip the package installation instruction below as it is not required to have the connector displayed within the Configuration > Monitoring Connector Manager menu. If the platform uses an offline license, install the package on the central server with the command corresponding to the operating system's package manager:

Alma / RHEL / Oracle Linux 8

dnf install centreon-pack-cloud-aws-sns

Alma / RHEL / Oracle Linux 9

dnf install centreon-pack-cloud-aws-sns

Debian 11 & 12

apt install centreon-pack-cloud-aws-sns

CentOS 7

yum install centreon-pack-cloud-aws-sns

2. Whatever the license type (online or offline), install the Amazon SNS connector through the Configuration > Monitoring Connector Manager menu.

Plugin

Since Centreon 22.04, you can benefit from the 'Automatic plugin installation' feature. When this feature is enabled, you can skip the installation part below.

You still have to manually install the plugin on the poller(s) when:

• Automatic plugin installation is turned off
• You want to run a discovery job from a poller that doesn't monitor any resource of this kind yet

More information in the Installing the plugin section.

Use the commands below according to your operating system's package manager:

Alma / RHEL / Oracle Linux 8

dnf install centreon-plugin-Cloud-Aws-Sns-Api

Alma / RHEL / Oracle Linux 9

dnf install centreon-plugin-Cloud-Aws-Sns-Api

Debian 11 & 12

apt install centreon-plugin-cloud-aws-sns-api

CentOS 7

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

Using the monitoring connector

Using a host template provided by the connector

1. Log into Centreon and add a new host through Configuration > Hosts.
2. Fill in the Name, Alias & IP Address/DNS fields according to your resource's settings.
3. Apply the Cloud-Aws-Sns-custom template to the host. A list of macros appears. Macros allow you to define how the connector will connect to the resource, and to customize the connector's behavior.
4. Fill in the macros you want. Some macros are mandatory.

Macro	Description	Default value	Mandatory
AWSACCESSKEY	Set AWS access key		X
AWSASSUMEROLE	Set Amazon Resource Name of the role to be assumed
AWSCUSTOMMODE	When a plugin offers several ways (CLI, library, etc.) to get information the desired one must be defined with this option	awscli
AWSREGION	Set the region name		X
AWSSECRETKEY	Set AWS secret key		X
PROXYURL	Proxy URL if any
TOPICNAME	Filter on a specific SNS topic (can be multiple, one instance per --topic-name option). Example: --topic-name="my_sns_topic_1" --topic-name="my_sns_topic_2"	.*
EXTRAOPTIONS	Any extra option you may want to add to every command (a --verbose flag for example). All options are listed here.

5. Deploy the configuration. The host appears in the list of hosts, and on the Resources Status page. The command that is sent by the connector is displayed in the details panel of the host: it shows the values of the macros.

Using a service template provided by the connector

1. If you have used a host template and checked Create Services linked to the Template too, the services linked to the template have been created automatically, using the corresponding service templates. Otherwise, create manually the services you want and apply a service template to them.
2. Fill in the macros you want (e.g. to change the thresholds for the alerts). Some macros are mandatory (see the table below).

Sns-Topic-Notifications

Macro	Description	Default value	Mandatory
TIMEFRAME	Set timeframe in seconds	900
PERIOD	Set period in seconds	60
FILTERMETRIC	Filter metrics (can be: 'NumberOfMessagesPublished', 'NumberOfNotificationsDelivered', 'NumberOfNotificationsFailed', 'NumberOfNotificationsFilteredOut'). (can be a regexp)
WARNINGNOTIFICATIONSDELIVERED	Threshold
CRITICALNOTIFICATIONSDELIVERED	Threshold
WARNINGNOTIFICATIONSFAILED	Threshold
CRITICALNOTIFICATIONSFAILED	Threshold
WARNINGNOTIFICATIONSFILTERED	Threshold
CRITICALNOTIFICATIONSFILTERED	Threshold
WARNINGNOTIFICATIONSPUBLISHED	Threshold
CRITICALNOTIFICATIONSPUBLISHED	Threshold
EXTRAOPTIONS	Any extra option you may want to add to the command (a --verbose flag for example). All options are listed here.	--verbose

3. Deploy the configuration. The service appears in the list of services, and on the Resources Status page. The command that is sent by the connector is displayed in the details panel of the service: it shows the values of the macros.

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). Test that the connector is able to monitor an AWS Instance using a command like this one (replace the sample values by yours):

/usr/lib/centreon/plugins/centreon_aws_sns_api.pl \
	--plugin=cloud::aws::sns::plugin \
	--mode=notifications \
	--custommode='awscli' \
	--aws-secret-key='XXXX' \
	--aws-access-key='XXXX' \
	--aws-role-arn='' \
	--region='us-east-1' \
	--proxyurl=''  \
	--topic-name='.*' \
	--filter-metric='' \
	--timeframe='900' \
	--period='60' \
	--warning-notifications-filtered='' \
	--critical-notifications-filtered='' \
	--warning-notifications-delivered='' \
	--critical-notifications-delivered='' \
	--warning-notifications-failed='' \
	--critical-notifications-failed='' \
	--warning-notifications-published='' \
	--critical-notifications-published='' \
	--verbose

The expected command output is shown below:

OK: 'my_sns_topic_1' Statistic 'Sum' number of notifications failed: 0 | 'my_sns_topic_1~sum#sns.notifications.failed.count'=0;;;;
Notifications for topic 'my_sns_topic_1' :
    Statistic 'Sum' number of notifications failed: 0 

Troubleshooting

Please find the troubleshooting documentation for Centreon Plugins typical issues.

Available modes

In most cases, a mode corresponds to a service template. The mode appears in the execution command for the connector. In the Centreon interface, you don't need to specify a mode explicitly: its use is implied when you apply a service template. However, you will need to specify the correct mode for the template if you want to test the execution command for the connector in your terminal.

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

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

The plugin brings the following modes:

Mode	Linked service template
discovery [code]	Used for host discovery
list-topics [code]	Not used in this Monitoring Connector
notifications [code]	Cloud-Aws-Sns-Topic-Notifications-Api-custom

Available options

Generic options

All generic options are listed here:

Option	Description
--mode	Define the mode in which you want the plugin to be executed (see --list-mode).
--dyn-mode	Specify a mode with the module's path (advanced).
--list-mode	List all available modes.
--mode-version	Check minimal version of mode. If not, unknown error.
--version	Return the version of the plugin.
--custommode	When a plugin offers several ways (CLI, library, etc.) to get information the desired one must be defined with this option.
--list-custommode	List all available custom modes.
--multiple	Multiple custom mode objects. This may be required by some specific modes (advanced).
--pass-manager	Define the password manager you want to use. Supported managers are: environment, file, keepass, hashicorpvault and teampass.
--verbose	Display extended status information (long output).
--debug	Display debug messages.
--filter-perfdata	Filter perfdata that match the regexp. Example: adding --filter-perfdata='avg' will remove all metrics that do not contain 'avg' from performance data.
--filter-perfdata-adv	Filter perfdata based on a "if" condition using the following variables: label, value, unit, warning, critical, min, max. Variables must be written either %{variable} or %(variable). Example: adding --filter-perfdata-adv='not (%(value) == 0 and %(max) eq "")' will remove all metrics whose value equals 0 and that don't have a maximum value.
--explode-perfdata-max	Create a new metric for each metric that comes with a maximum limit. The new metric will be named identically with a '_max' suffix). Example: it will split 'used_prct'=26.93%;0:80;0:90;0;100 into 'used_prct'=26.93%;0:80;0:90;0;100 'used_prct_max'=100%;;;;
--change-perfdata --extend-perfdata	Change or extend perfdata. Syntax: --extend-perfdata=searchlabel,newlabel,target[,[newuom],[min],[max]] Common examples: =over 4 Convert storage free perfdata into used: --change-perfdata='free,used,invert()' Convert storage free perfdata into used: --change-perfdata='used,free,invert()' Scale traffic values automatically: --change-perfdata='traffic,,scale(auto)' Scale traffic values in Mbps: --change-perfdata='traffic_in,,scale(Mbps),mbps' Change traffic values in percent: --change-perfdata='traffic_in,,percent()' =back
--change-perfdata	Change or extend perfdata. Syntax: --extend-perfdata=searchlabel,newlabel,target[,[newuom],[min],[max]] Common examples: =over 4 Convert storage free perfdata into used: --change-perfdata='free,used,invert()' Convert storage free perfdata into used: --change-perfdata='used,free,invert()' Scale traffic values automatically: --change-perfdata='traffic,,scale(auto)' Scale traffic values in Mbps: --change-perfdata='traffic_in,,scale(Mbps),mbps' Change traffic values in percent: --change-perfdata='traffic_in,,percent()' =back
--extend-perfdata	Change or extend perfdata. Syntax: --extend-perfdata=searchlabel,newlabel,target[,[newuom],[min],[max]] Common examples: =over 4 Convert storage free perfdata into used: --change-perfdata='free,used,invert()' Convert storage free perfdata into used: --change-perfdata='used,free,invert()' Scale traffic values automatically: --change-perfdata='traffic,,scale(auto)' Scale traffic values in Mbps: --change-perfdata='traffic_in,,scale(Mbps),mbps' Change traffic values in percent: --change-perfdata='traffic_in,,percent()' =back
--extend-perfdata-group	Add new aggregated metrics (min, max, average or sum) for groups of metrics defined by a regex match on the metrics' names. Syntax: --extend-perfdata-group=regex,namesofnewmetrics,calculation[,[newuom],[min],[max]] regex: regular expression namesofnewmetrics: how the new metrics' names are composed (can use $1, $2... for groups defined by () in regex). calculation: how the values of the new metrics should be calculated newuom (optional): unit of measure for the new metrics min (optional): lowest value the metrics can reach max (optional): highest value the metrics can reach Common examples: =over 4 Sum wrong packets from all interfaces (with interface need --units-errors=absolute): --extend-perfdata-group=',packets_wrong,sum(packets_(discard|error)_(in|out))' Sum traffic by interface: --extend-perfdata-group='traffic_in_(.*),traffic_$1,sum(traffic_(in|out)_$1)' =back
--change-short-output --change-long-output	Modify the short/long output that is returned by the plugin. Syntax: --change-short-output=patternreplacementmodifier Most commonly used modifiers are i (case insensitive) and g (replace all occurrences). Example: adding --change-short-output='OKUpgi' will replace all occurrences of 'OK', 'ok', 'Ok' or 'oK' with 'Up'
--change-short-output	Modify the short/long output that is returned by the plugin. Syntax: --change-short-output=patternreplacementmodifier Most commonly used modifiers are i (case insensitive) and g (replace all occurrences). Example: adding --change-short-output='OKUpgi' will replace all occurrences of 'OK', 'ok', 'Ok' or 'oK' with 'Up'
--change-long-output	Modify the short/long output that is returned by the plugin. Syntax: --change-short-output=patternreplacementmodifier Most commonly used modifiers are i (case insensitive) and g (replace all occurrences). Example: adding --change-short-output='OKUpgi' will replace all occurrences of 'OK', 'ok', 'Ok' or 'oK' with 'Up'
--change-exit	Replace an exit code with one of your choice. Example: adding --change-exit=unknown=critical will result in a CRITICAL state instead of an UNKNOWN state.
--range-perfdata	Rewrite the ranges displayed in the perfdata. Accepted values: 0: nothing is changed. 1: if the lower value of the range is equal to 0, it is removed. 2: remove the thresholds from the perfdata.
--filter-uom	Mask the units when they don't match the given regular expression.
--opt-exit	Replace the exit code in case of an execution error (i.e. wrong option provided, SSH connection refused, timeout, etc). Default: unknown.
--output-ignore-perfdata	Remove all the metrics from the service. The service will still have a status and an output.
--output-ignore-label	Remove the status label ("OK:", "WARNING:", "UNKNOWN:", CRITICAL:") from the beginning of the output. Example: 'OK: Ram Total:...' will become 'Ram Total:...'
--output-xml	Return the output in XML format (to send to an XML API).
--output-json	Return the output in JSON format (to send to a JSON API).
--output-openmetrics	Return the output in OpenMetrics format (to send to a tool expecting this format).
--output-file	Write output in file (can be combined with json, xml and openmetrics options). E.g.: --output-file=/tmp/output.txt will write the output in /tmp/output.txt.
--disco-format	Applies only to modes beginning with 'list-'. Returns the list of available macros to configure a service discovery rule (formatted in XML).
--disco-show	Applies only to modes beginning with 'list-'. Returns the list of discovered objects (formatted in XML) for service discovery.
--float-precision	Define the float precision for thresholds (default: 8).
--source-encoding	Define the character encoding of the response sent by the monitored resource Default: 'UTF-8'. =head1 DESCRIPTION B<output>. =cut
--aws-secret-key	Set AWS secret key.
--aws-access-key	Set AWS access key.
--aws-session-token	Set AWS session token.
--aws-role-arn	Set Amazon Resource Name of the role to be assumed.
--region	Set the region name (required).
--period	Set period in seconds.
--timeframe	Set timeframe in seconds.
--statistic	Set CloudWatch statistics (can be: 'minimum', 'maximum', 'average', 'sum').
--zeroed	Set metrics value to 0 if none. Useful when CloudWatch does not return value when not defined.
--proxyurl	Proxy URL if any
--aws-profile	Set AWS profile.
--endpoint-url	Override AWS service endpoint URL if necessary.
--timeout	Set timeout in seconds (default: 50).
--sudo	Use 'sudo' to execute the command.
--command	Command to get information (default: 'aws'). Can be changed if you have output in a file.
--command-path	Command path (default: none).
--command-options	Command options (default: none). Only use for testing purpose, when you want to set ALL parameters of a command by yourself.
--skip-ssl-check	Avoid certificate issuer verification. Useful when AWS resources are hosted by a third party. Note that it strips all stderr from the command result. Debug will only display CLI instead of everything.

Modes options

All available options for each service template are listed below:

Sns-Topic-Notifications

Option	Description
--topic-name	Filter on a specific SNS topic (can be multiple, one instance per --topic-name option). Example: --topic-name="my_sns_topic_1" --topic-name="my_sns_topic_2".
--filter-metric	Filter metrics (can be: 'NumberOfMessagesPublished', 'NumberOfNotificationsDelivered', 'NumberOfNotificationsFailed', 'NumberOfNotificationsFilteredOut'). (can be a regexp).
--warning-* --critical-*	Warning thresholds (can be 'notifications-published', 'notifications-delivered', 'notifications-failed', 'notifications-filtered).

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

/usr/lib/centreon/plugins/centreon_aws_sns_api.pl \
	--plugin=cloud::aws::sns::plugin \
	--mode=notifications \
	--help