haproxy Attributes
Important
The AWS OpsWorks Stacks service reached end of life on May 26, 2024 and has been disabled for both new and existing customers.
We strongly recommend customers migrate their workloads to other solutions as soon as possible. If you have questions about migration, reach out to the AWS Support Team on AWS re:Post
Note
These attributes are available only on Linux stacks.
The haproxy attributes
- balance
-
The algorithm used by a load balancer to select a server (string). The default value is
'roundrobin'. The other options are:-
'static-rr'
-
'leastconn'
-
'source'
-
'uri'
-
'url_param'
-
'hdr(name)'
-
'rdp-cookie'
-
'rdp-cookie(name)'
For more information on these arguments, see balance
. node[:haproxy][:balance] -
- check_interval
-
The health check time interval (string). The default value is
'10s'.node[:haproxy][:check_interval] - client_timeout
-
The maximum amount of time that a client can be inactive (string). The default value is
'60s'.node[:haproxy][:client_timeout] - connect_timeout
-
The maximum amount of time that HAProxy will wait for a server connection attempt to succeed (string). The default value is
'10s'.node[:haproxy][:connect_timeout] - default_max_connections
-
The default maximum number of connections (string). The default value is
'80000'.node[:haproxy][:default_max_connections] - global_max_connections
-
The maximum number of connections (string). The default value is
'80000'.node[:haproxy][:global_max_connections] - health_check_method
-
The health check method (string). The default value is
'OPTIONS'.node[:haproxy][:health_check_method] - health_check_url
-
The URL path that is used to check servers' health (string). The default value is
'/'.node[:haproxy][:health_check_url ] - queue_timeout
-
The maximum wait time for a free connection (string). The default value is
'120s'.node[:haproxy][:queue_timeout] - http_request_timeout
-
The maximum amount of time that HAProxy will wait for a complete HTTP request (string). The default value is
'30s'.node[:haproxy][:http_request_timeout] - retries
-
The number of retries after server connection failure (string). The default value is
'3'.node[:haproxy][:retries] - server_timeout
-
The maximum amount of time that a client can be inactive (string). The default value is
'60s'.node[:haproxy][:server_timeout] - stats_url
-
The URL path for the statistics page (string). The default value is
'/haproxy?stats'.node[:haproxy][:stats_url] - stats_user
-
The statistics page user name (string). The default value is
'opsworks'.node[:haproxy][:stats_user]
The maxcon attributes represent a load factor multiplier that is used to
compute the maximum number of connections that HAProxy allows for backends. For example,
suppose you have a Rails app server on a small instance with a backend
value of 4, which means that AWS OpsWorks Stacks will configure four Rails processes for that
instance. If you use the default maxcon_factor_rails_app value of 7,
HAProxy will handle 28 (4*7) connections to the Rails server.
- maxcon_factor_nodejs_app
-
The maxcon factor for a Node.js app server (number). The default value is
10.node[:haproxy][:maxcon_factor_nodejs_app] - maxcon_factor_nodejs_app_ssl
-
The maxcon factor for a Node.js app server with SSL (number). The default value is
10.node[:haproxy][:maxcon_factor_nodejs_app_ssl] - maxcon_factor_php_app
-
The maxcon factor for a PHP app server (number). The default value is
10.node[:haproxy][:maxcon_factor_php_app] - maxcon_factor_php_app_ssl
-
The maxcon factor for a PHP app server with SSL (number). The default value is
10.node[:haproxy][:maxcon_factor_php_app_ssl] - maxcon_factor_rails_app
-
The maxcon factor for a Rails app server (number). The default value is
7.node[:haproxy][:maxcon_factor_rails_app] - maxcon_factor_rails_app_ssl
-
The maxcon factor for a Rails app server with SSL (number). The default value is
7.node[:haproxy][:maxcon_factor_rails_app_ssl] - maxcon_factor_static
-
The maxcon factor for a static web server (number). The default value is
15.node[:haproxy][:maxcon_factor_static] - maxcon_factor_static_ssl
-
The maxcon factor for a static web server with SSL (number). The default value is
15.node[:haproxy][:maxcon_factor_static_ssl]
