Installs and configures HAproxy
Tested on 0.10.8 but newer and older version should work just fine.
The following platforms have been tested with this cookbook, meaning that the recipes run on these platforms without error:
- ubuntu
- debian
There are no external cookbook dependencies.
Just place the haproxy2 directory in your chef cookbook directory and upload it to your Chef server.
Simply include recipe[haproxy2] in your run_list.
This cookbook does not have a template to create the haproxy.cfg file, this file is generated dinamically depending of the pairs of keys and values of the attributes.
The global and the defaults sections, the listens, the frontends and the backends follow the same rules regarding how the cookbook will generate the configuration file. The idea is generate the config file setting attributes in the node, or trhough roles avoiding the templates.
The global and defaults sections are hashes with which their pair of keys and values are the settings that will applied on them.
The listens, frontends and the backends are an array of hashes, where each pair of keys and values of each hash are the settings that will be applied for them. They have three special attributes (name, role_app and member_options) that will not be considered settings of the listen, frontend or the backend but they are used for:
- name: defines the name of the listen, frontend or backend
- role_app: defines the role with which the nodes will be searched in order to use their info to set the servers options.
- member_options: It is a hash that could contain the keys
port(it is the port that will be used in the server option) andextra(you can set the extra options for the server option).
Regarding the values of the attributes, if you need to set a parameter
without values, you need to set this value to true, but if you need to set
a value you need to set a string. If it is false, the parameter will be not
set. If it is an array, the parameter will be set with the elements of the
array individually.
There is three special keywords (IPADDRESS, HOSTNAME, FQDN) that will be replaced by the corresponding attribute of the node.
For example, the following settings:
"haproxy" => {
"global" => {
"log" => "/dev/log local0 notice",
"maxconn" => 4096,
"debug" => false,
"quiet" => true,
"user" => "haproxy",
"group" => "haproxy"
},
"defaults" => {
"log" => "global",
"mode" => "http",
"option" => [ "httplog", "dontlognull", "redispatch" ],
"retries" => 3,
"maxconn" => 2000,
"contimeout" => 5000,
"clitimeout" => 50000,
"srvtimeout" => 50000
},
"listen" => [
{
"name" => "load_balancer",
"role_app" => lb_nodes",
"member_options" => {
"port" => "1060",
"extra" => "check"
},
"bind" => "IPADDRESS:80",
"maxconn" => "500000",
"balance" => "url_param jid",
"option" => ["httpclose", "redispatch", "forwardfor"]
},
{
"name" => "health_check",
"bind" => "127.0.0.1:60000",
"mode" => "health"
},
{
"name" => "stats",
"bind" => "10.10.10.10:80",
"maxconn" => "10",
"mode" => "http",
"stats" => [
"enable",
"hide-version",
"realm Haproxy",
"uri /proxy?stats",
"auth status:pass123"
]
},
{
"name" => "admin",
"bind" => "0.0.0.0:22002",
"mode" => "http",
"stats" => "uri /"
}
]
}
Will generate the following configuration file (the ip address of the node will be 40.51.127.1):
global
group haproxy
log /dev/log local0 notice
maxconn 4096
user haproxy
quiet
defaults
clitimeout 50000
contimeout 5000
log global
maxconn 2000
mode http
option httplog
option dontlognull
option redispatch
retries 3
srvtimeout 50000
listen load_balancer
balance url_param jid
bind 40.51.127.1:80
maxconn 500000
option httpclose
option redispatch
option forwardfor
server node00 10.0.0.100:1060 check
server node01 10.0.0.101:1060 check
server node02 10.0.0.102:1060 check
server node03 10.0.0.103:1060 check
listen health_check
bind 127.0.0.1:60000
mode health
listen stats
bind 10.10.10.10:80
maxconn 10
mode http
stats enable
stats hide-version
stats realm Haproxy
stats uri /proxy?stats
stats auth status:pass123
listen admin
bind 0.0.0.0:22002
mode http
stats uri /
(The servers option of the load_balancer listen were added automatically. The cookbook search the nodes that have the role lb_nodes in their runlist and added them to the listen settings)
This recipe installs, configures and starts the haproxy service.
If it true, set ENABLE=1 in the /etc/default/haproxy file.
It set the extra options which will be started the haproxy daemon.
Hash that contains the options and the values of the global section.
Hash that contains the options and the values of the defaults section.
Array of the hashes. Each hash contain the options and the values of a frontend definition.
Array of the hashes. Each hash contain the options and the values of a backend definition.
Array of the hashes. Each hash contain the options and the values of a listen definition.
There are none defined.
There are none defined.
- Source hosted at GitHub
- Report issues/Questions/Feature requests on GitHub Issues
Pull requests are very welcome! Make sure your patches are well tested. Ideally create a topic branch for every separate change you make.
Author:: Claudio Cesar Sanchez Tejeda demonccc@gmail.com
Copyright:: 2012, Claudio Cesar Sanchez Tejeda
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.