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openldap Cookbook

Configures a server to be an OpenLDAP master, OpenLDAP replication slave, or OpenLDAP client.

Requirements

Platform

Ubuntu 10.04 was primarily used in testing this cookbook. Other Ubuntu versions and Debian may work. Red Hat and derivatives are not fully supported, but we take patches.

Cookbooks

  • openssh
  • nscd
  • openssl (for slave recipe)

Attributes

Be aware of the attributes used by this cookbook and adjust the defaults for your environment where required, in attributes/openldap.rb.

Client node attributes

  • openldap[:basedn] - basedn
  • openldap[:server] - the LDAP server fully qualified domain name, default 'ldap'.node[:domain].

Server node attributes

  • openldap[:slapd_type] - master | slave
  • openldap[:slapd_rid] - unique integer ID, required if type is slave.
  • openldap[:slapd_master] - hostname of slapd master, attempts to search for slapd_type master.

Apache configuration attributes

Attributes useful for Apache authentication with LDAP.

COOK-128 - set automatically based on openldap[:server] and openldap[:basedn] if those attributes are set. openldap[:auth_bindpw] remains nil by default as a default value is not easily predicted.

  • openldap[:auth_type] - determine whether binddn and bindpw are required (openldap no, ad yes)
  • openldap[:auth_url] - AuthLDAPURL
  • openldap[:auth_binddn] - AuthLDAPBindDN
  • openldap[:auth_bindpw] - AuthLDAPBindPassword

Recipes

auth

Sets up the system for using openldap for user authentication.

default

Empty recipe, you may want client.

client

Install the openldap client packages.

server

Set up openldap to be a slapd server. Use this if your environment would only have a single slapd server.

master

Sets the node['openldap']['slapd_type'] to master and then includes the openldap::server recipe.

slave

Sets the node['openldap']['slapd_type'] to slave, then includes the openldap::server recipe. If the node is running chef-solo, then the node['openldap']['slapd_replpw'] and node['openldap']['slapd_master'] attributes must be set in the JSON attributes file passed to chef-solo.

Usage

Edit Rakefile variables for SSL certificate.

On client systems,

include_recipe "openldap::auth"

This will get the required packages and configuration for client systems. This will be required on server systems as well, so this is a good candidate for inclusion in a base role.

On server systems, if there's only one LDAP server, then use the openldap::server recipe. If replication is required, use the openldap::master and openldap::slave recipes instead.

When initially installing a brand new LDAP master server on Ubuntu 8.10, the configuration directory may need to be removed and recreated before slapd will start successfully. Doing this programmatically may cause other issues, so fix the directory manually :-).

$ sudo slaptest -F /etc/ldap/slapd.d
str2entry: invalid value for attributeType objectClass #1 (syntax 1.3.6.1.4.1.1466.115.121.1.38)
=> ldif_enum_tree: failed to read entry for /etc/ldap/slapd.d/cn=config/olcDatabase={1}bdb.ldif
slaptest: bad configuration directory!

Simply remove the configuration, rerun chef-client. For some reason slapd isn't getting started even though the service resource is notified to start, so start it manually.

$ sudo rm -rf /etc/ldap/slapd.d/ /etc/ldap/slapd.conf
$ sudo chef-client
$ sudo /etc/init.d/slapd start

A note about certificates

Certificates created by the Rakefile are self signed. If you have a purchased CA, that can be used. Be sure to update the certificate locations in the templates as required. We suggest copying this cookbook to the site-cookbooks for such modifications, so you can still pull from our master for updates, and then merge your changes in.

New Directory

If installing for the first time, the initial directory needs to be created. Create an ldif file, and start populating the directory.

Passwords

Set the password, openldap[:rootpw] for the rootdn in the node's attributes. This should be a password hash generated from slappasswd. The default slappasswd command on Ubuntu 8.10 and Mac OS X 10.5 will generate a SHA1 hash:

$ slappasswd -s "secretsauce"
{SSHA}6BjlvtSbVCL88li8IorkqMSofkLio58/

Set this by default in the attributes file, or on the node's entry in the webui.

License & Authors

Copyright:: 2009, 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.