Node Balancers v4.141.0

NodeBalancers List

GET https://api.linode.com/v4/nodebalancers

Returns a paginated list of NodeBalancers you have access to.

Authorizations

personalAccessToken
oauth	nodebalancers:read_only

Query Parameters

page

Type:: integer >= 1
Default: 1
Default:: 1

The page of a collection to return.

page_size

Type:: integer 25..100
Default: 100
Default:: 100

The number of items to return per page.

Request Samples

Response Samples

Responses

NodeBalancer Create

POST https://api.linode.com/v4/nodebalancers

Creates a NodeBalancer in the requested Region.

NodeBalancers require a port Config with at least one backend Node to start serving requests.

When using the Linode CLI to create a NodeBalancer, first create a NodeBalancer without any Configs. Then, create Configs and Nodes for that NodeBalancer with the respective Config Create and Node Create commands.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Request Samples

Request Body Schema

client_conn_throttle

integer 0..20

Throttle connections per second. Set to 0 (zero) to disable throttling.

configs

array
of objects

The port Config(s) to create for this NodeBalancer.

Each Config must have a unique port and at least one Node.

algorithm

string

Enum: roundrobin leastconn source Default: roundrobin

What algorithm this NodeBalancer should use for routing traffic to backends.

check

string

Enum: none connection http http_body Default: none

The type of check to perform against backends to ensure they are serving requests. This is used to determine if backends are up or down.

If none no check is performed.
connection requires only a connection to the backend to succeed.
http and http_body rely on the backend serving HTTP, and that the response returned matches what is expected.

check_attempts

integer 1..30

Default: 3

How many times to attempt a check before considering a backend to be down.

check_body

string

This value must be present in the response body of the check in order for it to pass. If this value is not present in the response body of a check request, the backend is considered to be down.

check_interval

integer

Default: 31

How often, in seconds, to check that backends are up and serving requests.

Must be greater than check_timeout.

check_passive

boolean

Default: true

If true, any response from this backend with a 5xx status code will be enough for it to be considered unhealthy and taken out of rotation.

check_path

string

The URL path to check on each backend. If the backend does not respond to this request it is considered to be down.

check_timeout

integer 1..30

Default: 30

How long, in seconds, to wait for a check attempt before considering it failed.

Must be less than check_interval.

cipher_suite

string

Enum: recommended legacy Default: recommended

What ciphers to use for SSL connections served by this NodeBalancer.

legacy is considered insecure and should only be used if necessary.

nodes

Required

array
of objects

The NodeBalancer Node(s) that serve this Config.

address	`string<ip>` The private IP Address where this backend can be reached. This must be a private IP address.
label	`string` 3..32 characters The label for this node. This is for display purposes only.
mode	`string` Enum: `accept` `reject` `drain` `backup` The mode this NodeBalancer should use when sending traffic to this backend. If set to `accept` this backend is accepting traffic. If set to `reject` this backend will not receive traffic. If set to `drain` this backend will not receive new traffic, but connections already pinned to it will continue to be routed to it. If set to `backup`, this backend will only receive traffic if all `accept` nodes are down.
weight	`integer` 1..255 Used when picking a backend to serve a request and is not pinned to a single backend yet. Nodes with a higher weight will receive more traffic.

port

integer 1..65535

Default: 80

The port this Config is for. These values must be unique across configs on a single NodeBalancer (you can’t have two configs for port 80, for example). While some ports imply some protocols, no enforcement is done and you may configure your NodeBalancer however is useful to you. For example, while port 443 is generally used for HTTPS, you do not need SSL configured to have a NodeBalancer listening on port 443.

protocol

string

Enum: http https tcp Default: http

The protocol this port is configured to serve.

The http and tcp protocols do not support ssl_cert and ssl_key.
The https protocol is mutually required with ssl_cert and ssl_key.

Review our guide on Available Protocols for information on protocol features.

proxy_protocol

string

Enum: none v1 v2 Default: none

ProxyProtocol is a TCP extension that sends initial TCP connection information such as source/destination IPs and ports to backend devices. This information would be lost otherwise. Backend devices must be configured to work with ProxyProtocol if enabled.

If ommited, or set to none, the NodeBalancer doesn’t send any auxilary data over TCP connections. This is the default.
If set to v1, the human-readable header format (Version 1) is used. Requires tcp protocol.
If set to v2, the binary header format (Version 2) is used. Requires tcp protocol.

ssl_cert

Nullable

string<ssl-cert>

The PEM-formatted public SSL certificate (or the combined PEM-formatted SSL certificate and Certificate Authority chain) that should be served on this NodeBalancerConfig’s port.

Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI).

Diffie-Hellman Parameters can be included in this value to enable forward secrecy.

The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, <REDACTED> will be printed where the field appears.

The read-only ssl_commonname and ssl_fingerprint fields in a NodeBalancerConfig response are automatically derived from your certificate. Please refer to these fields to verify that the appropriate certificate was assigned to your NodeBalancerConfig.

ssl_key

Nullable

string<ssl-key>

The PEM-formatted private key for the SSL certificate set in the ssl_cert field.

Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI).

The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, <REDACTED> will be printed where the field appears.

stickiness

string

Enum: none table http_cookie Default: none

Controls how session stickiness is handled on this port.

If set to none connections will always be assigned a backend based on the algorithm configured.
If set to table sessions from the same remote address will be routed to the same backend.
For HTTP or HTTPS clients, http_cookie allows sessions to be routed to the same backend based on a cookie set by the NodeBalancer.

label

Filterable

string 3..32 characters

This NodeBalancer’s label. These must be unique on your Account.

region

Required

string

The ID of the Region to create this NodeBalancer in.

Response Samples

Responses

NodeBalancer Delete

DELETE https://api.linode.com/v4/nodebalancers/{nodeBalancerId}

Deletes a NodeBalancer.

This is a destructive action and cannot be undone.

Deleting a NodeBalancer will also delete all associated Configs and Nodes, although the backend servers represented by the Nodes will not be changed or removed. Deleting a NodeBalancer will cause you to lose access to the IP Addresses assigned to this NodeBalancer.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId

integer

Required

The ID of the NodeBalancer to access.

Request Samples

Response Samples

Responses

NodeBalancer View

GET https://api.linode.com/v4/nodebalancers/{nodeBalancerId}

Returns a single NodeBalancer you can access.

Authorizations

personalAccessToken
oauth	nodebalancers:read_only

Path Parameters

nodeBalancerId

integer

Required

The ID of the NodeBalancer to access.

Request Samples

Response Samples

Responses

NodeBalancer Update

PUT https://api.linode.com/v4/nodebalancers/{nodeBalancerId}

Updates information about a NodeBalancer you can access.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId

integer

Required

The ID of the NodeBalancer to access.

Request Samples

Request Body Schema

client_conn_throttle	`integer` 0..20 Throttle connections per second. Set to 0 (zero) to disable throttling.
label Filterable	`string` 3..32 characters This NodeBalancer’s label. These must be unique on your Account.
tags Filterable	`array of strings` An array of Tags applied to this object. Tags are for organizational purposes only.

Response Samples

Responses

Configs List

GET https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs

Returns a paginated list of NodeBalancer Configs associated with this NodeBalancer. NodeBalancer Configs represent individual ports that this NodeBalancer will accept traffic on, one Config per port.

For example, if you wanted to accept standard HTTP traffic, you would need a Config listening on port 80.

Authorizations

personalAccessToken
oauth	nodebalancers:read_only

Path Parameters

nodeBalancerId

integer

Required

The ID of the NodeBalancer to access.

Query Parameters

page

Type:: integer >= 1
Default: 1
Default:: 1

The page of a collection to return.

page_size

Type:: integer 25..100
Default: 100
Default:: 100

The number of items to return per page.

Request Samples

Response Samples

Responses

Config Create

POST https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs

Creates a NodeBalancer Config, which allows the NodeBalancer to accept traffic on a new port. You will need to add NodeBalancer Nodes to the new Config before it can actually serve requests.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId

integer

Required

The ID of the NodeBalancer to access.

Request Samples

Request Body Schema

algorithm	`string` Enum: `roundrobin` `leastconn` `source` Default: `roundrobin` What algorithm this NodeBalancer should use for routing traffic to backends.
check	`string` Enum: `none` `connection` `http` `http_body` Default: `none` The type of check to perform against backends to ensure they are serving requests. This is used to determine if backends are up or down. If `none` no check is performed. `connection` requires only a connection to the backend to succeed. `http` and `http_body` rely on the backend serving HTTP, and that the response returned matches what is expected.
check_attempts	`integer` 1..30 Default: `3` How many times to attempt a check before considering a backend to be down.
check_body	`string` This value must be present in the response body of the check in order for it to pass. If this value is not present in the response body of a check request, the backend is considered to be down.
check_interval	`integer` Default: `31` How often, in seconds, to check that backends are up and serving requests. Must be greater than `check_timeout`.
check_passive	`boolean` Default: `true` If true, any response from this backend with a `5xx` status code will be enough for it to be considered unhealthy and taken out of rotation.
check_path	`string` The URL path to check on each backend. If the backend does not respond to this request it is considered to be down.
check_timeout	`integer` 1..30 Default: `30` How long, in seconds, to wait for a check attempt before considering it failed. Must be less than `check_interval`.
cipher_suite	`string` Enum: `recommended` `legacy` Default: `recommended` What ciphers to use for SSL connections served by this NodeBalancer. `legacy` is considered insecure and should only be used if necessary.
port	`integer` 1..65535 Default: `80` The port this Config is for. These values must be unique across configs on a single NodeBalancer (you can’t have two configs for port 80, for example). While some ports imply some protocols, no enforcement is done and you may configure your NodeBalancer however is useful to you. For example, while port 443 is generally used for HTTPS, you do not need SSL configured to have a NodeBalancer listening on port 443.
protocol	`string` Enum: `http` `https` `tcp` Default: `http` The protocol this port is configured to serve. The `http` and `tcp` protocols do not support `ssl_cert` and `ssl_key`. The `https` protocol is mutually required with `ssl_cert` and `ssl_key`. Review our guide on Available Protocols for information on protocol features.
proxy_protocol	`string` Enum: `none` `v1` `v2` Default: `none` ProxyProtocol is a TCP extension that sends initial TCP connection information such as source/destination IPs and ports to backend devices. This information would be lost otherwise. Backend devices must be configured to work with ProxyProtocol if enabled. If ommited, or set to `none`, the NodeBalancer doesn’t send any auxilary data over TCP connections. This is the default. If set to `v1`, the human-readable header format (Version 1) is used. Requires `tcp` protocol. If set to `v2`, the binary header format (Version 2) is used. Requires `tcp` protocol.
ssl_cert Nullable	`string<ssl-cert>` The PEM-formatted public SSL certificate (or the combined PEM-formatted SSL certificate and Certificate Authority chain) that should be served on this NodeBalancerConfig’s port. Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI). Diffie-Hellman Parameters can be included in this value to enable forward secrecy. The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, `<REDACTED>` will be printed where the field appears. The read-only `ssl_commonname` and `ssl_fingerprint` fields in a NodeBalancerConfig response are automatically derived from your certificate. Please refer to these fields to verify that the appropriate certificate was assigned to your NodeBalancerConfig.
ssl_key Nullable	`string<ssl-key>` The PEM-formatted private key for the SSL certificate set in the `ssl_cert` field. Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI). The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, `<REDACTED>` will be printed where the field appears. The read-only `ssl_commonname` and `ssl_fingerprint` fields in a NodeBalancerConfig response are automatically derived from your certificate. Please refer to these fields to verify that the appropriate certificate was assigned to your NodeBalancerConfig.
stickiness	`string` Enum: `none` `table` `http_cookie` Default: `none` Controls how session stickiness is handled on this port. If set to `none` connections will always be assigned a backend based on the algorithm configured. If set to `table` sessions from the same remote address will be routed to the same backend. For HTTP or HTTPS clients, `http_cookie` allows sessions to be routed to the same backend based on a cookie set by the NodeBalancer.

Response Samples

Responses

Config Delete

DELETE https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}

Deletes the Config for a port of this NodeBalancer.

This cannot be undone.

Once completed, this NodeBalancer will no longer respond to requests on the given port. This also deletes all associated NodeBalancerNodes, but the Linodes they were routing traffic to will be unchanged and will not be removed.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the config to access.

Request Samples

Response Samples

Responses

Config View

GET https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}

Returns configuration information for a single port of this NodeBalancer.

Authorizations

personalAccessToken
oauth	nodebalancers:read_only

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the config to access.

Request Samples

Response Samples

Responses

Config Update

PUT https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}

Updates the configuration for a single port on a NodeBalancer.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the config to access.

Request Samples

Request Body Schema

algorithm	`string` Enum: `roundrobin` `leastconn` `source` Default: `roundrobin` What algorithm this NodeBalancer should use for routing traffic to backends.
check	`string` Enum: `none` `connection` `http` `http_body` Default: `none` The type of check to perform against backends to ensure they are serving requests. This is used to determine if backends are up or down. If `none` no check is performed. `connection` requires only a connection to the backend to succeed. `http` and `http_body` rely on the backend serving HTTP, and that the response returned matches what is expected.
check_attempts	`integer` 1..30 Default: `3` How many times to attempt a check before considering a backend to be down.
check_body	`string` This value must be present in the response body of the check in order for it to pass. If this value is not present in the response body of a check request, the backend is considered to be down.
check_interval	`integer` Default: `31` How often, in seconds, to check that backends are up and serving requests. Must be greater than `check_timeout`.
check_passive	`boolean` Default: `true` If true, any response from this backend with a `5xx` status code will be enough for it to be considered unhealthy and taken out of rotation.
check_path	`string` The URL path to check on each backend. If the backend does not respond to this request it is considered to be down.
check_timeout	`integer` 1..30 Default: `30` How long, in seconds, to wait for a check attempt before considering it failed. Must be less than `check_interval`.
cipher_suite	`string` Enum: `recommended` `legacy` Default: `recommended` What ciphers to use for SSL connections served by this NodeBalancer. `legacy` is considered insecure and should only be used if necessary.
port	`integer` 1..65535 Default: `80` The port this Config is for. These values must be unique across configs on a single NodeBalancer (you can’t have two configs for port 80, for example). While some ports imply some protocols, no enforcement is done and you may configure your NodeBalancer however is useful to you. For example, while port 443 is generally used for HTTPS, you do not need SSL configured to have a NodeBalancer listening on port 443.
protocol	`string` Enum: `http` `https` `tcp` Default: `http` The protocol this port is configured to serve. The `http` and `tcp` protocols do not support `ssl_cert` and `ssl_key`. The `https` protocol is mutually required with `ssl_cert` and `ssl_key`. Review our guide on Available Protocols for information on protocol features.
proxy_protocol	`string` Enum: `none` `v1` `v2` Default: `none` ProxyProtocol is a TCP extension that sends initial TCP connection information such as source/destination IPs and ports to backend devices. This information would be lost otherwise. Backend devices must be configured to work with ProxyProtocol if enabled. If ommited, or set to `none`, the NodeBalancer doesn’t send any auxilary data over TCP connections. This is the default. If set to `v1`, the human-readable header format (Version 1) is used. Requires `tcp` protocol. If set to `v2`, the binary header format (Version 2) is used. Requires `tcp` protocol.
ssl_cert Nullable	`string<ssl-cert>` The PEM-formatted public SSL certificate (or the combined PEM-formatted SSL certificate and Certificate Authority chain) that should be served on this NodeBalancerConfig’s port. Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI). Diffie-Hellman Parameters can be included in this value to enable forward secrecy. The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, `<REDACTED>` will be printed where the field appears. The read-only `ssl_commonname` and `ssl_fingerprint` fields in a NodeBalancerConfig response are automatically derived from your certificate. Please refer to these fields to verify that the appropriate certificate was assigned to your NodeBalancerConfig.
ssl_key Nullable	`string<ssl-key>` The PEM-formatted private key for the SSL certificate set in the `ssl_cert` field. Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI). The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, `<REDACTED>` will be printed where the field appears. The read-only `ssl_commonname` and `ssl_fingerprint` fields in a NodeBalancerConfig response are automatically derived from your certificate. Please refer to these fields to verify that the appropriate certificate was assigned to your NodeBalancerConfig.
stickiness	`string` Enum: `none` `table` `http_cookie` Default: `none` Controls how session stickiness is handled on this port. If set to `none` connections will always be assigned a backend based on the algorithm configured. If set to `table` sessions from the same remote address will be routed to the same backend. For HTTP or HTTPS clients, `http_cookie` allows sessions to be routed to the same backend based on a cookie set by the NodeBalancer.

Response Samples

Responses

Nodes List

GET https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}/nodes

Returns a paginated list of NodeBalancer nodes associated with this Config. These are the backends that will be sent traffic for this port.

Authorizations

personalAccessToken
oauth	nodebalancers:read_only

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the NodeBalancer config to access.

Query Parameters

page

Type:: integer >= 1
Default: 1
Default:: 1

The page of a collection to return.

page_size

Type:: integer 25..100
Default: 100
Default:: 100

The number of items to return per page.

Request Samples

Response Samples

Responses

Node Create

POST https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}/nodes

Creates a NodeBalancer Node, a backend that can accept traffic for this NodeBalancer Config. Nodes are routed requests on the configured port based on their status.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the NodeBalancer config to access.

Request Samples

Request Body Schema

address Required	`string<ip>` The private IP Address where this backend can be reached. This must be a private IP address.
label Required	`string` 3..32 characters The label for this node. This is for display purposes only.
mode	`string` Enum: `accept` `reject` `drain` `backup` The mode this NodeBalancer should use when sending traffic to this backend. If set to `accept` this backend is accepting traffic. If set to `reject` this backend will not receive traffic. If set to `drain` this backend will not receive new traffic, but connections already pinned to it will continue to be routed to it. If set to `backup`, this backend will only receive traffic if all `accept` nodes are down.
weight	`integer` 1..255 Used when picking a backend to serve a request and is not pinned to a single backend yet. Nodes with a higher weight will receive more traffic.

Response Samples

Responses

Node Delete

DELETE https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}/nodes/{nodeId}

Deletes a Node from this Config. This backend will no longer receive traffic for the configured port of this NodeBalancer.

This does not change or remove the Linode whose address was used in the creation of this Node.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the Config to access
nodeId	`integer` Required The ID of the Node to access

Request Samples

Response Samples

Responses

Node View

GET https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}/nodes/{nodeId}

Returns information about a single Node, a backend for this NodeBalancer’s configured port.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the Config to access
nodeId	`integer` Required The ID of the Node to access

Request Samples

Response Samples

Responses

Node Update

PUT https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}/nodes/{nodeId}

Updates information about a Node, a backend for this NodeBalancer’s configured port.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the Config to access
nodeId	`integer` Required The ID of the Node to access

Request Samples

Request Body Schema

address	`string<ip>` The private IP Address where this backend can be reached. This must be a private IP address.
label	`string` 3..32 characters The label for this node. This is for display purposes only.
mode	`string` Enum: `accept` `reject` `drain` `backup` The mode this NodeBalancer should use when sending traffic to this backend. If set to `accept` this backend is accepting traffic. If set to `reject` this backend will not receive traffic. If set to `drain` this backend will not receive new traffic, but connections already pinned to it will continue to be routed to it. If set to `backup`, this backend will only receive traffic if all `accept` nodes are down.
weight	`integer` 1..255 Used when picking a backend to serve a request and is not pinned to a single backend yet. Nodes with a higher weight will receive more traffic.

Response Samples

Responses

Config Rebuild

POST https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/configs/{configId}/rebuild

Rebuilds a NodeBalancer Config and its Nodes that you have permission to modify.

Use this command to update a NodeBalancer’s Config and Nodes with a single request.

Authorizations

personalAccessToken
oauth	nodebalancers:read_write

Path Parameters

nodeBalancerId	`integer` Required The ID of the NodeBalancer to access.
configId	`integer` Required The ID of the Config to access.

Request Samples

Request Body Schema

algorithm

string

Enum: roundrobin leastconn source Default: roundrobin

What algorithm this NodeBalancer should use for routing traffic to backends.

check

string

Enum: none connection http http_body Default: none

The type of check to perform against backends to ensure they are serving requests. This is used to determine if backends are up or down.

If none no check is performed.
connection requires only a connection to the backend to succeed.
http and http_body rely on the backend serving HTTP, and that the response returned matches what is expected.

check_attempts

integer 1..30

Default: 3

How many times to attempt a check before considering a backend to be down.

check_body

string

This value must be present in the response body of the check in order for it to pass. If this value is not present in the response body of a check request, the backend is considered to be down.

check_interval

integer

Default: 31

How often, in seconds, to check that backends are up and serving requests.

Must be greater than check_timeout.

check_passive

boolean

Default: true

If true, any response from this backend with a 5xx status code will be enough for it to be considered unhealthy and taken out of rotation.

check_path

string

The URL path to check on each backend. If the backend does not respond to this request it is considered to be down.

check_timeout

integer 1..30

Default: 30

How long, in seconds, to wait for a check attempt before considering it failed.

Must be less than check_interval.

cipher_suite

string

Enum: recommended legacy Default: recommended

What ciphers to use for SSL connections served by this NodeBalancer.

legacy is considered insecure and should only be used if necessary.

nodes

Required

array
of objects

The NodeBalancer Node(s) that serve this Config.

Some considerations for Nodes when rebuilding a config:

Current Nodes excluded from the request body will be deleted from the Config.
Current Nodes (identified by their Node ID) will be updated.
New Nodes (included without a Node ID) will be created.

address	`string<ip>` The private IP Address where this backend can be reached. This must be a private IP address.
id	`integer` The unique ID of the Node to update.
label	`string` 3..32 characters The label for this node. This is for display purposes only.
mode	`string` Enum: `accept` `reject` `drain` `backup` The mode this NodeBalancer should use when sending traffic to this backend. If set to `accept` this backend is accepting traffic. If set to `reject` this backend will not receive traffic. If set to `drain` this backend will not receive new traffic, but connections already pinned to it will continue to be routed to it. If set to `backup`, this backend will only receive traffic if all `accept` nodes are down.
weight	`integer` 1..255 Used when picking a backend to serve a request and is not pinned to a single backend yet. Nodes with a higher weight will receive more traffic.

port

integer 1..65535

Default: 80

protocol

string

Enum: http https tcp Default: http

The protocol this port is configured to serve.

The http and tcp protocols do not support ssl_cert and ssl_key.
The https protocol is mutually required with ssl_cert and ssl_key.

Review our guide on Available Protocols for information on protocol features.

proxy_protocol

string

Enum: none v1 v2 Default: none

If ommited, or set to none, the NodeBalancer doesn’t send any auxilary data over TCP connections. This is the default.
If set to v1, the human-readable header format (Version 1) is used. Requires tcp protocol.
If set to v2, the binary header format (Version 2) is used. Requires tcp protocol.

ssl_cert

Nullable

string<ssl-cert>

The PEM-formatted public SSL certificate (or the combined PEM-formatted SSL certificate and Certificate Authority chain) that should be served on this NodeBalancerConfig’s port.

Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI).

Diffie-Hellman Parameters can be included in this value to enable forward secrecy.

The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, <REDACTED> will be printed where the field appears.

ssl_key

Nullable

string<ssl-key>

The PEM-formatted private key for the SSL certificate set in the ssl_cert field.

Line breaks must be represented as “\n” in the string for requests (but not when using the Linode CLI).

The contents of this field will not be shown in any responses that display the NodeBalancerConfig. Instead, <REDACTED> will be printed where the field appears.

stickiness

string

Enum: none table http_cookie Default: none

Controls how session stickiness is handled on this port.

If set to none connections will always be assigned a backend based on the algorithm configured.
If set to table sessions from the same remote address will be routed to the same backend.
For HTTP or HTTPS clients, http_cookie allows sessions to be routed to the same backend based on a cookie set by the NodeBalancer.

Response Samples

Responses

NodeBalancer Statistics View

GET https://api.linode.com/v4/nodebalancers/{nodeBalancerId}/stats

Returns detailed statistics about the requested NodeBalancer.

Authorizations

personalAccessToken
oauth	nodebalancers:read_only

Path Parameters

nodeBalancerId

integer

Required

The ID of the NodeBalancer to access.

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