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daemontools (8) Versions 1.1.0

Installs/Configures daemontools

Berkshelf/Librarian
Policyfile
Knife
cookbook 'daemontools', '= 1.1.0'
cookbook 'daemontools', '= 1.1.0', :supermarket
knife cookbook site install daemontools
knife cookbook site download daemontools
README
Dependencies
Quality -%

Description

Installs DJB's Daemontools and includes a service LWRP.

Requirements

Platform:

Tested on:

  • Debian 5.0 and 6.0
  • Ubuntu 10.04 and 12.04
  • ArchLinux

May work on other platforms with or without modification using the "source" installation method.

Cookbooks:

  • ucspi-tcp
  • pacman (for ArchLinux)
  • build-essential (for source installs)

Attributes

  • node['daemontools']['bin_dir'] - Sets the location of the binaries for daemontools, default is selected by platform, or '/usr/local/bin' as a fallback.
  • node['daemontools']['service_dir'] - Daemontools "service" directory where svscan will find services to manage.
  • node['daemontools']['install_method'] - how to install daemontools, can be source, package or aur (for ArchLinux).

Recipes

default

The default recipe dispatches to the other recipes depending on the node['daemontools']['install_method'].

package

Works and tested on Debian family (platform_family) for installing the daemontools-run package. This recipe can be included anywhere if you have a daemontools package available in your distribution's package repositories or in a local package repository.

aur

On ArchLinux systems, include the pacman cookbook in a base role or similar as this cookbook doesn't directly depend on it.

source

The source installation of daemontools should work on most other platforms that do not have a package available.

Resource/Provider

This cookbook includes an LWRP, daemontools_service, for managing services with daemontools. Examples:

daemontools_service "tinydns-internal" do
  directory "/etc/djbdns/tinydns-internal"
  template false
  action [:enable,:start]
end

daemontools_service "chef-client" do
  directory "/etc/sv/chef-client"
  template "chef-client"
  action [:enable,:start]
  log true
end

Daemontools itself can perform a number of actions on services. The following are commands sent via the svc program. See its man page for more information.

  • start, stop, status, restart, up, down, once, pause, cont, hup, alrm, int, term, kill

Enabling a service (:enable action) is done by setting up the directory located by the directory resource attribute. The following are set up:

  • run script that runs the service startup using the template resource attribute name.
  • log/run directory and script that runs the logger if the resource attribute log is true.
  • finish script, if specified using the finish resource attribute
  • env directory, containing ENV variablesif specified with the env resource attribute
  • links the node['daemontools']['service_dir']/service_name to the service_name directory.

The default action is :start - once enabled daemontools services are started by svscan anyway.

The name attribute for the resource is service_name.

Usage

Include the daemontools recipe on nodes that should have daemontools installed for managing services. Use the daemontools_service LWRP for any services that should be managed by daemontools. In your cookbooks where daemontools_service is used, create the appropriate run and log-run scripts for your service. For example if the service is "flowers":

daemontools_service "flowers" do
  directory "/etc/sv/flowers"
  template "flowers"
  action [:enable, :start]
  log true
end

Create these templates in your cookbook:

  • templates/default/sv-flowers-run.erb
  • templates/default/sv-flowers-log-run.erb

If your service also has a finish script, set the resource attribute finish to true and create sv-flowers-finish.erb.

The content of the scripts should be appropriate for the "flowers" service.

License and Author

Author: Joshua Timberman (joshua@opscode.com)

Copyright 2010-2012, Opscode, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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