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sensu-formula

A saltstack formula to install and configure the open source monitoring framework, Sensu.

Note: See the full Salt Formulas installation and usage instructions.

Sensu can be configured/scaled with the individual states installed on multiple servers. All states are configured via the pillar file. Sane defaults are set in pillar_map.jinja and can be over-written in the pillar.

Note: This formula only manages Sensu!! You are responsible for installing/configuring RabbitMQ and Redis as appropriate.

Example top.sls:

base:
    '*':
        - sensu.client 

    'sensu-server-*':
        - sensu.server

    'sensu-api-*':
        - sensu.api

    'uchiwa-*':
        - sensu.uchiwa

Available states

sensu

Adds the Sensu repository, and installs the Sensu package.

sensu.server

Configures sensu-server and starts the service.

Requires minimum rabbitmq configuration.

sensu:
  rabbitmq:
    host: RABBITMQ_HOST_IP (Do not use localhost as the clients also use this.)
    user: RABBITMQ_USERNAME
    password: RABBITMQ_USER_PASSWORD

If you use SSL, you must enable it and provide the certs. See the sensu documentation.

Custom check definitions/extentions/mutators/handlers/plugins can be deployed to all Sensu servers by placing the scripts into the corresponding directory in ./sensu/files/.

The included check-procs.rb comes from the sensu-community-plugins as an example only. There is no guarantee that it up-to-date and it should not be used.

If you are not running your redis server locally, set the following in the pillar:

sensu:
  redis:
    host: HOSTNAME
    port: PORT

sensu.client

Configures sensu-client and starts the service.

Check scripts can be deployed to all clients by placing them into ./sensu/files/plugins.

You can use the embedded ruby or installing nagios plugins by setting:

sensu:
  client:
    embedded_ruby: true
    nagios_plugins: true

To subscribe your clients to the appropriate checks, extend the sensu.client state and override the /etc/sensu/conf.d/client.json file block. You must provide your own method, I am currently using custom set grains associated to the servers's role.

include:
  - sensu.client

extend:
  /etc/sensu/conf.d/client.json:
    file.managed:
      - source: salt://your/file/here

sensu.api

Configures sensu-api and starts the service.

sensu.uchiwa

Configures uchiwa and starts the service.

Uchiwa can manage multiple Sensu clusters. You can manage them by creating more sites in the pillar. Override the neccesary default values.