Description

Installs rsyslog to replace sysklogd for client and/or server use. By default, server will be set up to log to files.

Important Changes in 1.1.0: See the CHANGELOG.md file for important changes to this cookbook. There are some incompatibilities with existing installations. Use version 1.0.0 if you're not ready for these changes.

Requirements

Platform

Tested on Ubuntu 8.04, 9.10, 10.04.

For Ubuntu 8.04, the rsyslog package will be installed from a PPA via the default.rb recipe in order to get 4.2.0 backported from 10.04.

• https://launchpad.net/~a.bono/+archive/rsyslog

Ubuntu 8.10 and 9.04 are no longer supported releases and have not been tested with this cookbook.

Other

To use the recipe[rsyslog::client] recipe, you'll need to set up the rsyslog.server_search or rsyslog.server_ip attributes. See the Recipes, and Examples sections below.

Attributes

See attributes/default.rb for default values.

• node['rsyslog']['log_dir'] - If the node is an rsyslog server, this specifies the directory where the logs should be stored.
• node['rsyslog']['server'] - Determined automaticaly and set to true on the server.
• node['rsyslog']['server_ip'] - If not defined then search will be used to determine rsyslog server. Default is nil.
• node['rsyslog']['server_search'] - Specify the criteria for the server search operation. Default is role:loghost.
• node['rsyslog']['protocol'] - Specify whether to use udp or tcp for remote loghost. Default is tcp.
• node['rsyslog']['port'] - Specify the port which rsyslog should connect to a remote loghost.
• node['rsyslog']['remote_logs'] - Specify wether to send all logs to a remote server (client option). Default is true.
• node['rsyslog']['per_host_dir'] - "PerHost" directories for template statements in 35-server-per-host.conf. Default value is the previous cookbook version's value, to preserve compatibility. See server recipe below.
• node['rsyslog']['file_user'] - Specify the user to write files as.
• node['rsyslog']['file_group'] - Specify the group to write files as.
• node['rsyslog']['drop_user'] - Specify the user to run as.
• node['rsyslog']['drop_group'] - Specify the group to run as.
• node['rsyslog']['priv_seperation'] - Whether to use privilege seperation or not.
• node['rsyslog']['facility'] - Specify the facility to transmit remotely.
• node['rsyslog']['priority'] - Specify the priority to transmit remotely.

Recipes

default

Installs the rsyslog package, manages the rsyslog service and sets up basic configuration for a standalone machine.

client

Includes recipe[rsyslog].

Uses Chef search to find a remote loghost node with the search criteria specified by node['rsyslog']['server_search'] and uses its ipaddress attribute to send log messages. In case the rsyslog.server_ip is explicitly defined then it's used instead the search operation. If the node itself is a rsyslog server ie it has rsyslog.server attribute set to true then the configuration is skipped. If the node had an /etc/rsyslog.d/35-server-per-host.conf file previously configured, this file gets removed to prevent duplicate logging. Any previous logs are not cleaned up from the log_dir.

server

Configures the node to be a rsyslog server. The node should be able to be resolved by the specified search criteria node['rsyslog']['server_search] so that client nodes can find it with search. This recipe will create the logs in node['rsyslog']['log_dir'], and the configuration is in /etc/rsyslog.d/server.conf. This recipe also removes any previous configuration to a remote server by removing the /etc/rsyslog.d/remote.conf file.

The cron job used in the previous version of this cookbook is removed, but it does not remove any existing cron job from your system (so it doesn't break anything unexpectedly). We recommend setting up logrotate for the logfiles instead.

The log_dir will be concatenated with per_host_dir to store the logs for each client. Modify the attribute to have a value that is allowed by rsyslogs template matching values, see the rsyslog documentation for this.

Directory structure:

<%= @log_dir %>/<%= @per_host_dir %>/"logfile"

For example for the system with hostname www:

/srv/rsyslog/2011/11/19/www/messages

For example, to change this to just the hostname, set the attribute node['rsyslog']['per_host_dir'] via a role:

"rsyslog" => { "per_host_dir" => "%HOSTNAME%" }

At this time, the server can only listen on UDP or TCP.

Usage

Use recipe[rsyslog] to install and start rsyslog as a basic configured service for standalone systems.

Use recipe[rsyslog::client] to have nodes search for the loghost automatically to configure remote [r]syslog.

Use recipe[rsyslog::server] to set up a rsyslog server. It will listen on node['rsyslog']['port'] protocol node['rsyslog']['protocol'].

If you set up a different kind of centralized loghost (syslog-ng, graylog2, logstash, etc), you can still send log messages to it as long as the port and protocol match up with the server software. See Examples

Examples

A base role (e.g., roles/base.rb), applied to all nodes so they are syslog clients:

name "base"
description "Base role applied to all nodes
run_list("recipe[rsyslog::client]")

Then, a role for the loghost (should only be one):

name "loghost"
description "Central syslog server"
run_list("recipe[rsyslog::server]")

By default this will set up the clients search for a node with the loghost role to talk to the server on TCP port 514. Change the protocol and port rsyslog attributes to modify this.

If you want to specify another syslog compatible server with a role other than loghost, simply fill free to use the server_ip attribute or the server_search attribute.

Example role that sets the per host directory:

name "loghost"
description "Central syslog server"
run_list("recipe[rsyslog::server]")
default_attributes(
  "rsyslog" => { "per_host_dir" => "%HOSTNAME%" }
)

License and Author

Author:: Joshua Timberman (joshua@opscode.com) Author:: Denis Barishev (denz@twiket.com)

Copyright:: 2009-2011, 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.