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sensu (66) Versions 3.0.0

Installs/Configures Sensu

cookbook 'sensu', '= 3.0.0', :supermarket
cookbook 'sensu', '= 3.0.0'
knife supermarket install sensu
knife supermarket download sensu
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This cookbook provides custom resources and service recipes to install and configure
Sensu, a monitoring framework.

The custom resources provide building blocks for creating a monitoring
cookbook specific to your environment (wrapper). Without such a
wrapper, no Sensu configuration files will be created for your nodes.

An example wrapper cookbook can be found HERE.

How to Write Reusable Chef Cookbooks


See, and documents.



  • Ubuntu/Debian
  • RHEL and derivatives
  • Fedora
  • Windows


  • Chef 12+
  • Earlier versions of Chef (e.g. Chef 11) may work but are not actively supported.


NOTE: This cookbook either constrains its dependencies optimistically (>=) or
not at all. You're strongly encouraged to more strictly manage these
dependencies in your wrapper cookbook.

Package versioning

This cookbook makes no attempt to manage the versions of its package
dependencies. If you desire or require management of these versions, you should
handle these via your wrapper cookbook.


SSL configuration

Running Sensu with SSL is recommended; by default this cookbook attempts to load
SSL credentials from a data bag sensu, with an item ssl, containing the
required SSL certificates and keys. These data bag items may be encrypted via
native Chef encrypted data bags or via Chef Vault.

The data loaded from the data bag by default is expected to be formatted as

  "server": {
    "cert": "CERTIFICATE_DATA",
    "key": "PRIVATE_KEY_DATA",
    "cacert": "CA_CERTIFICATE_DATA"
  "client": {
    "cert": "CERTIFICATE_DATA",
    "key": "PRIVATE_KEY_DATA"

All of the above values are expected to be strings comprised of PEM-formatted
credentials with escaped line endings. See
test/integration/data_bags/sensu/ssl.json for a more literal example.

If the attempt to load SSL credentials from a data bag fails, the cookbook will
log a warning but proceed with the rest of the Chef run anyway, on the
assumption that credentials will be inserted into the Chef "run state" (i.e.
node.run_state['sensu']['ssl']) in the same format using the
Sensu::ChefRunState helper methods, set_sensu_run_state and

Please see the documentation for the run state helper
for more information.

This cookbook comes with a tool to generate the certificates and data bag items.
If the integrity of the certificates is ever compromised, you must regenerate
and redeploy them.

cd examples/ssl
./ generate
knife data bag create sensu

Use the plain-text data bag item:

knife data bag from file sensu ssl.json

Or, encrypt it with your data bag secret. See Encrypt a Data Bag
for more information.

knife data bag --secret-file /path/to/your/secret from file sensu ssl.json
./ clean



Installs Sensu and creates a base configuration file, intended to be
extended. This recipe must be included before any of the Sensu LWRP's
can be used. This recipe does not enable or start any services.


Installs and configures RabbitMQ for Sensu, from configuring SSL to
creating a vhost and credentials. This recipe relies heavily on the
community RabbitMQ cookbook LWRP's.


Installs and configures Redis for Sensu. This recipe uses the
RedisIO cookbook and installs Redis from source.


Installs and configures Sensu Enterprise.


Enables and starts the Sensu server.


Enables and starts the Sensu client.


Enables and starts the Sensu API.


Enables and starts Sensu Enterprise.


Installs and configures Sensu Enterprise Dashboard.


Enables and starts Sensu Enterprise Dashboard.



node["sensu"]["version"] - Sensu build to install.

node["sensu"]["use_unstable_repo"] - If the build resides on the
"unstable" repository.

node["sensu"]["directory"] - Sensu configuration directory.

node["sensu"]["log_directory"] - Sensu log directory.

node["sensu"]["log_level"] - Sensu log level (eg. "warn").

node["sensu"]["use_ssl"] - If Sensu and RabbitMQ are to use SSL.

node["sensu"]["user"] - The user who owns all sensu files and directories. Default

node["sensu"]["group"] - The group that owns all sensu files and directories.
Default "sensu".

node["sensu"]["use_embedded_ruby"] - If Sensu Ruby handlers and plugins
use the embedded Ruby in the Sensu package (default: true).

node["sensu"]["init_style"] - Style of init to be used when configuring
Sensu services, "sysv" and "runit" are currently supported.

node["sensu"]["service_max_wait"] - How long service scripts should wait
for Sensu to start/stop.


Sensu requires Microsoft's .Net Framework to run on Windows. The following attributes influence the installation of .Net via this cookbook:

node["sensu"]["windows"]["install_dotnet"] - Toggles installation of .Net Framework using ms_dotnet cookbook. (default: true)

node["sensu"]["windows"]["dotnet_major_version"] - Major version of .Net Framework to install. (default: 4)

Adjusting the value of dotnet_major_version attribute will influence which
recipe from ms_dotnet cookbook will be included. See ms_dotnet cookbook
for additional details on using this cookbook.


node["sensu"]["transport"]["name"] - Name of transport to use for Sensu communications. Default "rabbitmq"


node["sensu"]["rabbitmq"]["hosts"] - Array of RabbitMQ hosts as strings, which will be combined with other RabbitMQ attributes to generate the Sensu RabbitMQ transport configuration as an array of hashes. Falls back to node["sensu"]["rabbitmq"]["host"] when empty. Defaults to an empty array.

node["sensu"]["rabbitmq"]["host"] - RabbitMQ host.

node["sensu"]["rabbitmq"]["port"] - RabbitMQ port, usually for SSL.

node["sensu"]["rabbitmq"]["ssl"] - RabbitMQ SSL configuration, DO NOT EDIT THIS.

node["sensu"]["rabbitmq"]["vhost"] - RabbitMQ vhost for Sensu.

node["sensu"]["rabbitmq"]["user"] - RabbitMQ user for Sensu.

node["sensu"]["rabbitmq"]["password"] - RabbitMQ password for Sensu.


node["sensu"]["redis"]["host"] - Redis host.

node["sensu"]["redis"]["port"] - Redis port.

Sensu API

node["sensu"]["api"]["host"] - Sensu API host, for other services to reach it.

node["sensu"]["api"]["bind"] - Sensu API bind address.

node["sensu"]["api"]["port"] - Sensu API port.

Sensu Enterprise

node["sensu"]["enterprise"]["repo_protocol"] - Sensu Enterprise repo protocol (e.g. http, https)

node["sensu"]["enterprise"]["repo_host"] - Sensu Enterprise repo host

node["sensu"]["enterprise"]["version"] - Desired Sensu Enterprise package version

node["sensu"]["enterprise"]["use_unstable_repo"] - Toggle use of Sensu Enterprise unstable repository

node["sensu"]["enterprise"]["log_level"] - Configure Sensu Enterprise log level

node["sensu"]["enterprise"]["heap_size"] - Configure Sensu Enterprise heap size

node["sensu"]["enterprise"]["java_opts"] - Specify additional Java options when running Sensu Enterprise

Custom Resources (LWRPs)

Define a client

sensu_client node["name"] do
  address node["ipaddress"]
  subscriptions node["roles"] + ["all"]
  additional(:cluster => node["cluster"])

The sensu_client provider also supports the following optional attributes:

  • deregister
  • deregistration
  • keepalive
  • keepalives
  • redact
  • registration
  • safe_mode
  • socket

Define a handler

sensu_handler "pagerduty" do
  type "pipe"
  command "pagerduty.rb"
  severities ["ok", "critical"]

Define a check

sensu_check "redis_process" do
  command "check-procs.rb -p redis-server -C 1"
  handlers ["default"]
  subscribers ["redis"]
  interval 30
  additional(:notification => "Redis is not running", :occurrences => 5)

Define a filter

sensu_filter "environment" do
  attributes(:client => {:environment => "development"})
  negate true

Define a mutator

sensu_mutator "opentsdb" do
  command "opentsdb.rb"

Define a custom configuration snippet

sensu_snippet "irc" do
  content(:uri => "irc://")

Helper modules and methods

Run State Helpers

The Sensu::ChefRunState module provides helper methods which populate node.run_state['sensu'] with arbitrary key/value pairs. This provides a means for wrapper cookbooks to populate the node.run_state with data required by the cookbook, e.g. SSL credentials, without cookbook itself enforcing source for that data.

NOTE: The node.run_state is not persisted locally nor on a Chef server. Data stored here exists only for the duration of the Chef run.


This method sets values inside the node.run_state['sensu'] Mash, and expects arguments in the following order:

  1. the Chef node object
  2. one or more keys, providing the path to walk
  3. the value to set at that path


set_sensu_state(node, 'food', 'nachos', true)

The above sets the value of node.run_state['sensu']['food']['nachos'] to true.


This method retrieves the value of a key inside the node.run_state['sensu'] Mash and expects arguments in the following order:

  1. the Chef node object
  2. one or more keys, providing the path to walk


get_sensu_state(node, 'food', 'nachos') would return true

When no value is set for a requested path, this method returns nil:

get_sensu_state(node, 'this', 'path', 'is', 'invalid') returns nil


Please visit for details on community and commercial
support resources, including the official IRC channel.

Sensu cookbook changelog

This file is used to track changes made in recent versions of the Sensu
cookbook. Please see for changes from older versions of this project.


3.0.0 - 2016-08-09


This cookbook now supports Chef version 12+. Earlier versions may work but
are not supported.

The default version of Sensu installed by this cookbook is now 0.25.6-1.

The default value of node["sensu"]["use_embedded_ruby"] is now true.

The rabbitmq recipe now installs Erlang via the Erlang Solutions repository on all platforms.

Behavior changes

Installation of the .NET Framework is now handled by the ms_dotnet cookbook.


Sensu Enterprise repository URL is now configurable via attributes.

Sensu Enterprise JVM options are now configurable via attributes.

Sensu transport name is now configurable via attributes.

The sensu_base_config provider now honors node["rabbitmq"]["hosts"] attribute,
providing an array of hosts to use for configuring rabbitmq transport with multiple brokers.
When hosts attribute has no value, we fall back to value of node["sensu"]["rabbitmq"]["host"]

The sensu_client provider now honors the following additional client
attributes, as defined in the Sensu Client Reference Documentation:

  • deregister
  • deregistration
  • keepalives
  • redact
  • registration
  • safe_mode
  • socket

Check definition LWRP has been updated to support named aggregates (added
in Sensu 0.25) and multiple named aggregates (coming in Sensu 0.26).

Integration tests for Windows now use the new Chef Zero Scheduled
Task provider which makes testing this platform much easier.

Expanded unit tests in many areas, including sensu_base_config,
sensu_client, sensu_json_file and other LWRPs.


Directories created by the sensu_json_file provider now assume the mode
defined by the value of node["sensu"]["directory_mode"] attribute.

The method used to look up sensu_service_trigger ruby block in the
resource collection has been updated to eliminate conditions where Sensu
services may not be notified to restart.

Resources are now created by the sensu_json_file provider
unconditinally, unblocking the use of library cookbooks like zap to
clean up unmanaged files on disk.

2.12.0 - 2016-03-14

Project changes

The Sensu cookbook project has adopted a new contribution workflow and a
new code of conduct policy. Please see the relevant documents in
repo for details.

Behavior changes

Values for owner and group properties on sensu_json_file resources
now default to lazy evaluation of node attributes sensu.admin_user and respectively. (#426)

Data bags remain default source of SSL certificates, but are now optional:

With the addition of Sensu state helpers in #410 recipes which
access credentials via data bags (i.e. `default`, `rabbitmq` and
`enterprise` recipes) have been updated to make these data bag
items optional.

Please see the readme and integration test suite for examples of
using these helpers.

Testing notes have been added in to describe some of the
platform/suite combinations which are disabled or otherwise
require special configuration.


Added ChefSpec test coverage for the following:

  • default and client_service recipes
  • sensu_gem LWRP
  • Sensu::Helpers library #select_attributes and #gem_binary methods

Added source attribute to sensu_gem resource
Added upgrade action to sensu_gem resource
Added helpers for storing key/value pairs which persist for duration of the Chef run


Allow "standard" as a value of type attribute on sensu_check resources, as described in Sensu documentation.

Collaborator Number Metric

3.0.0 failed this metric

Failure: Cookbook has 1 collaborators. A cookbook must have at least 2 collaborators to pass this metric.

Foodcritic Metric

3.0.0 failed this metric

FC015: Consider converting definition to a Custom Resource: /tmp/06d670491bb95b6a34bbde8f/sensu/definitions/rabbitmq_credentials.rb:1
FC015: Consider converting definition to a Custom Resource: /tmp/06d670491bb95b6a34bbde8f/sensu/definitions/silence_check.rb:1
FC015: Consider converting definition to a Custom Resource: /tmp/06d670491bb95b6a34bbde8f/sensu/definitions/silence_client.rb:1
FC023: Prefer conditional attributes: /tmp/06d670491bb95b6a34bbde8f/sensu/definitions/silence_check.rb:7
FC023: Prefer conditional attributes: /tmp/06d670491bb95b6a34bbde8f/sensu/definitions/silence_check.rb:16
FC023: Prefer conditional attributes: /tmp/06d670491bb95b6a34bbde8f/sensu/definitions/silence_client.rb:2
FC023: Prefer conditional attributes: /tmp/06d670491bb95b6a34bbde8f/sensu/definitions/silence_client.rb:11
FC052: Metadata uses the unimplemented "suggests" keyword: /tmp/06d670491bb95b6a34bbde8f/sensu/metadata.rb:28
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/api_stash.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/asset.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/base_config.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/check.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/client.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/dashboard_config.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/filter.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/gem.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/handler.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/json_file.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/mutator.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/plugin.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/service.rb:1
FC059: LWRP provider does not declare use_inline_resources: /tmp/06d670491bb95b6a34bbde8f/sensu/providers/snippet.rb:1