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layout	page_title	sidebar_current	description
alicloud	Alicloud: alicloud_slb	docs-alicloud-resource-slb	Provides an Application Load Banlancer resource.

alicloud_slb

Provides an Application Load Balancer resource.

Example Usage

# Create a new load balancer for classic
resource "alicloud_slb" "classic" {
  name                 = "test-slb-tf"
  internet             = true
  internet_charge_type = "paybybandwidth"
  bandwidth            = 5

  listener = [
    {
      "instance_port" = "2111"
      "lb_port"       = "21"
      "lb_protocol"   = "tcp"
      "bandwidth"     = "5"
    },
    {
      "instance_port" = "8000"
      "lb_port"       = "80"
      "lb_protocol"   = "http"
      "bandwidth"     = "5"
    },
    {
      "instance_port" = "1611"
      "lb_port"       = "161"
      "lb_protocol"   = "udp"
      "bandwidth"     = "5"
    },
  ]
}

# Create a new load balancer for VPC
resource "alicloud_vpc" "default" {
  # Other parameters...
}

resource "alicloud_vswitch" "default" {
  # Other parameters...
}

resource "alicloud_slb" "vpc" {
  name       = "test-slb-tf"
  vswitch_id = "${alicloud_vswitch.default.id}"
}

Argument Reference

The following arguments are supported:

name - (Optional) The name of the SLB. This name must be unique within your AliCloud account, can have a maximum of 80 characters, must contain only alphanumeric characters or hyphens, such as "-","/",".","_", and must not begin or end with a hyphen. If not specified, Terraform will autogenerate a name beginning with tf-lb.
internet - (Optional, Forces New Resource) If true, the SLB addressType will be internet, false will be intranet, Default is false. If load balancer launched in VPC, this value must be "false".
internet_charge_type - (Optional, Forces New Resource) Valid values are paybybandwidth, paybytraffic. If this value is "paybybandwidth", then argument "internet" must be "true". Default is "paybytraffic". If load balancer launched in VPC, this value must be "paybytraffic".
bandwidth - (Optional) Valid value is between 1 and 1000, If argument "internet_charge_type" is "paybytraffic", then this value will be ignore.
listener - (Optional) Additional SLB listener. See Block listener below for details.
vswitch_id - (Required for a VPC SLB, Forces New Resource) The VSwitch ID to launch in.

Block listener

load balance support 4 protocal to listen on, they are http,https,tcp,udp, the every listener support which portocal following:

listener parameter	support protocol	value range
instance_port	http & https & tcp & udp	1-65535
lb_port	http & https & tcp & udp	1-65535
lb_protocol	http & https & tcp & udp
bandwidth	http & https & tcp & udp	-1 / 1-1000
scheduler	http & https & tcp & udp	wrr or wlc
sticky_session	http & https	on or off
sticky_session_type	http & https	insert or server
cookie_timeout	http & https	1-86400
cookie	http & https
persistence_timeout	tcp & udp	0-3600
health_check	http & https	on or off
health_check_type	tcp	tcp or http
health_check_domain	http & https & tcp
health_check_uri	http & https & tcp
health_check_connect_port	http & https & tcp & udp	1-65535 or -520
healthy_threshold	http & https & tcp & udp	1-10
unhealthy_threshold	http & https & tcp & udp	1-10
health_check_timeout	http & https & tcp & udp	1-50
health_check_interval	http & https & tcp & udp	1-5
health_check_http_code	http & https & tcp	http_2xx,http_3xx,http_4xx,http_5xx
ssl_certificate_id	https

The listener mapping supports the following:

instance_port - (Required) The port on which the backend servers are listening. Valid value is between 1 to 65535.
lb_port - (Required) The port on which the load balancer is listening. Valid value is between 1 to 65535.
lb_protocol - (Required) The protocol to listen on. Valid values are http and and tcp and udp.
bandwidth - (Required) The bandwidth on which the load balancer is listening. Valid values is -1 or between 1 and 1000. If -1, the bindwidth will haven’t upper limit.
scheduler - (Optinal) Scheduling algorithm, Valid Value is wrr / wlc, Default is "wrr".
sticky_session - (Optinal) Whether to enable session persistence, Value: on / off.
sticky_session_type - (Optinal) Mode for handling the cookie. If "sticky_session" is on, the parameter is mandatory, and if "sticky_session" is off, the parameter will be ignored. Value：insert / server. If it is set to insert, it means it is inserted from Server Load Balancer; and if it is set to server, it means the Server Load Balancer learns from the backend server.
cookie_timeout - (Optinal) The parameter is mandatory when "sticky_session" is on and "sticky_session_type" is insert. Otherwise, it will be ignored. Value： 1-86400（in seconds）
cookie - (Optinal) The cookie configured on the server It is mandatory only when "sticky_session" is on and "sticky_session_type" is server; otherwise, the parameter will be ignored. Value：String in line with RFC 2965, with length being 1- 200. It only contains characters such as ASCII codes, English letters and digits instead of the comma, semicolon or spacing, and it cannot start with $.
persistence_timeout - (Optinal) Timeout of connection persistence. Value： 0-3600（in seconds） .Default：0 The value 0 indicates to close it.
health_check - (Optinal) Whether to enable health check. Value：on / off
health_check_type - (Optinal) Type of health check. Value：tcp | http , Default：tcp . TCP supports TCP and HTTP health check mode, you can select the particular mode depending on your application.
health_check_domain - (Optinal) Domain name used for health check. When TCP listener need to use HTTP health check, this parameter will be configured; and when TCP health check is used, the parameter will be ignored. Value： $_ip | custom string. Rules of the custom string: its length is limited to 1-80 and only characters such as letters, digits, ‘-‘ and ‘.’ are allowed. When the parameter is set to $_ip by the user, Server Load Balancer uses the private network IP address of each backend server as Domain used for health check.
health_check_uri - (Optinal) URI used for health check. When TCP listener need to use HTTP health check, this parameter will be configured; and when TCP health check is used, the parameter will be ignored. Value：Its length is limited to 1-80 and it must start with /. Only characters such as letters, digits, ‘-’, ‘/’, ‘.’, ‘%’, ‘?’, #’ and ‘&’ are allowed.
health_check_connect_port - (Optinal) Port used for health check. Value： 1-65535, Default：None. When the parameter is not set, it means the backend server port is used (BackendServerPort).
healthy_threshold - (Optinal) Threshold determining the result of the health check is success. Value：1-10, Default：3.
unhealthy_threshold - (Optinal) Threshold determining the result of the health check is fail. Value：1-10, Default：3.
health_check_timeout - (Optinal) Maximum timeout of each health check response. When "health_check" is on, the parameter is mandatory; and when "mandatory" is off, the parameter will be ignored. Value：1-50（in seconds）. Note: If health_check_timeout < health_check_interval, health_check_timeout is invalid, and the timeout is health_check_interval.
health_check_interval - (Optinal) Time interval of health checks. When "health_check" is on, the parameter is mandatory; and when "health_check" is off, the parameter will be ignored. Value：1-5 (in seconds）
health_check_http_code - (Optinal) Regular health check HTTP status code. Multiple codes are segmented by “,”. When "health_check" is on, the parameter is mandatory; and when "health_check" is off, the parameter will be ignored. Value：http_2xx / http_3xx / http_4xx / http_5xx.
ssl_certificate_id - (Optinal) Security certificate ID.

Attributes Reference

The following attributes are exported:

id - The ID of the load balancer.
name - The name of the load balancer.
internet - The internet of the load balancer.
internet_charge_type - The internet_charge_type of the load balancer.
bandwidth - The bandwidth of the load balancer.
vswitch_id - The VSwitch ID of the load balancer. Only available on SLB launched in a VPC.
address - The IP address of the load balancer.

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