License
MIT License
v0.5.0 · public · Published over 3 years ago
The sensu-aws-sns-handler is a Sensu Handler that allows you to send alerts via AWS
Simple Notification Service (SNS).
AWS Simple Notification Service Handler
Usage:
sensu-aws-sns-handler [flags]
sensu-aws-sns-handler [command]
Available Commands:
help Help about any command
version Print the version number of this plugin
Flags:
-t, --topic-arn string The SNS Topic ARN
-s, --subject-template string The template for the subject sent via SNS (default "{{.Check.State}} - {{.Entity.Name}}/{{.Check.Name}}")
-m, --message-template string The template for the message sent via SNS (default "{{.Entity.Name}}/{{.Check.Name}}: {{.Check.State}}")
-a, --assume-role-arn string The IAM role to assume upon succssful authentication
-u, --use-ec2-region Query the EC2 metadata for the region to use for SNS
-h, --help help for sensu-aws-sns-handler
This handler provides options for using templates to populate the values
provided by the event in the message sent via SNS. More information on
template syntax and format can be found in the documentation
Sensu Assets are the best way to make use of this plugin. If you're not using an asset, please
consider doing so! If you're using sensuctl 5.13 with Sensu Backend 5.13 or later, you can use the
following command to add the asset:
sensuctl asset add sensu/sensu-aws-sns-handler
If you're using an earlier version of sensuctl, you can find the asset on the Bonsai Asset Index.
---
type: Handler
api_version: core/v2
metadata:
name: sensu-aws-sns-handler
namespace: default
spec:
command: sensu-aws-sns-handler
type: pipe
runtime_assets:
- nixiwz/sensu-aws-sns-handler
All arguments for this handler are tunable on a per entity or check basis based on annotations. The
annotations keyspace for this handler is sensu.io/plugins/sensu-aws-sns-handler/config
.
NOTE: Due to check token substituion, supplying a template value such
as for message-template
as a check annotation requires that you place the
desired template as a golang string literal (enlcosed in backticks)
within another template definition. This does not apply to entity annotations.
To change the SNS topic ARN for a particular entity, in that agent's agent.yml file
add the following:
annotations:
sensu.io/plugins/sensu-aws-sns-handler/config/topic-arn: "arn:aws:sns:us-west-2:0123456789012:sensu-alerts"
To change the message template for a particular check, for that checks's metadata add the following:
type: CheckConfig
api_version: core/v2
metadata:
annotations:
fatigue_check/occurrences: "3"
sensu.io/plugins/sensu-aws-sns-handler/config/message-template: "{{`{{.Entity.Name}}/{{.Check.Name}}: {{.Check.State}}, {{.Check.Occurrences}}`}}"
[...]
This plugin makes use of the AWS SDK for Go. The SDK uses the default credential provider chain
to find AWS credentials. The SDK uses the first provider in the chain that returns credentials
without an error. The default provider chain looks for credentials in the following order:
Environment variables (AWS_SECRET_ACCESS_KEY, AWS_ACCESS_KEY_ID, and AWS_REGION).
Shared credentials file (typically ~/.aws/credentials).
If your application is running on an Amazon EC2 instance, IAM role for Amazon EC2.
If your application uses an ECS task definition or RunTask API operation, IAM role for tasks.
The SDK detects and uses the built-in providers automatically, without requiring manual configurations.
For example, if you use IAM roles for Amazon EC2 instances, your applications automatically use the
instance’s credentials. You don’t need to manually configure credentials in your application.
Source: Configuring the AWS SDK for Go
This plugin also supports assuming a new role upon authentication using the --assume-role-arn
option.
If you go the route of using environment variables, it is highly suggested you use them via the
Env secrets provider.
The AWS SDK for Go uses the following criteria for determining the AWS region in which to use
SNS:
If running the Sensu backend process on an EC2 instance, this handler also supports using the
EC2 metadata to determine the region via the --use-ec2-region
option.
The preferred way of installing and deploying this plugin is to use it as an Asset. If you would
like to compile and install the plugin from source or contribute to it, download the latest version
or create an executable from this source.
From the local path of the sensu-aws-sns-handler repository:
go build
For more information about contributing to this plugin, see Contributing.
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