| address |
Option<String> |
A hostname, IPv4, or IPv6 address for the backend. This is the preferred way to specify the location of your backend. |
|
| auto_loadbalance |
Option<bool> |
Whether or not this backend should be automatically load balanced. If true, all backends with this setting that don't have a request_condition will be selected based on their weight. |
|
| between_bytes_timeout |
Option<i32> |
Maximum duration in milliseconds that Fastly will wait while receiving no data on a download from a backend. If exceeded, the response received so far will be considered complete and the fetch will end. May be set at runtime using bereq.between_bytes_timeout. |
|
| client_cert |
Option<String> |
Unused. |
|
| comment |
Option<String> |
A freeform descriptive note. |
|
| connect_timeout |
Option<i32> |
Maximum duration in milliseconds to wait for a connection to this backend to be established. If exceeded, the connection is aborted and a synthetic 503 response will be presented instead. May be set at runtime using bereq.connect_timeout. |
|
| first_byte_timeout |
Option<i32> |
Maximum duration in milliseconds to wait for the server response to begin after a TCP connection is established and the request has been sent. If exceeded, the connection is aborted and a synthetic 503 response will be presented instead. May be set at runtime using bereq.first_byte_timeout. |
|
| healthcheck |
Option<String> |
The name of the healthcheck to use with this backend. |
|
| hostname |
Option<String> |
The hostname of the backend. May be used as an alternative to address to set the backend location. |
|
| ipv4 |
Option<String> |
IPv4 address of the backend. May be used as an alternative to address to set the backend location. |
|
| ipv6 |
Option<String> |
IPv6 address of the backend. May be used as an alternative to address to set the backend location. |
|
| keepalive_time |
Option<i32> |
How long in seconds to keep a persistent connection to the backend between requests. |
|
| max_conn |
Option<i32> |
Maximum number of concurrent connections this backend will accept. |
|
| max_tls_version |
Option<String> |
Maximum allowed TLS version on SSL connections to this backend. If your backend server is not able to negotiate a connection meeting this constraint, a synthetic 503 error response will be generated. |
|
| min_tls_version |
Option<String> |
Minimum allowed TLS version on SSL connections to this backend. If your backend server is not able to negotiate a connection meeting this constraint, a synthetic 503 error response will be generated. |
|
| name |
Option<String> |
The name of the backend. |
|
| override_host |
Option<String> |
If set, will replace the client-supplied HTTP Host header on connections to this backend. Applied after VCL has been processed, so this setting will take precedence over changing bereq.http.Host in VCL. |
|
| port |
Option<i32> |
Port on which the backend server is listening for connections from Fastly. Setting port to 80 or 443 will also set use_ssl automatically (to false and true respectively), unless explicitly overridden by setting use_ssl in the same request. |
|
| request_condition |
Option<String> |
Name of a Condition, which if satisfied, will select this backend during a request. If set, will override any auto_loadbalance setting. By default, the first backend added to a service is selected for all requests. |
|
| share_key |
Option<String> |
Value that when shared across backends will enable those backends to share the same health check. |
|
| shield |
Option<String> |
Identifier of the POP to use as a shield. |
|
| ssl_ca_cert |
Option<String> |
CA certificate attached to origin. |
|
| ssl_cert_hostname |
Option<String> |
Overrides ssl_hostname, but only for cert verification. Does not affect SNI at all. |
|
| ssl_check_cert |
Option<bool> |
Be strict on checking SSL certs. |
[default to true] |
| ssl_ciphers |
Option<String> |
List of OpenSSL ciphers to support for connections to this origin. If your backend server is not able to negotiate a connection meeting this constraint, a synthetic 503 error response will be generated. |
|
| ssl_client_cert |
Option<String> |
Client certificate attached to origin. |
|
| ssl_client_key |
Option<String> |
Client key attached to origin. |
|
| ssl_hostname |
Option<String> |
Use ssl_cert_hostname and ssl_sni_hostname to configure certificate validation. |
|
| ssl_sni_hostname |
Option<String> |
Overrides ssl_hostname, but only for SNI in the handshake. Does not affect cert validation at all. |
|
| tcp_keepalive_enable |
Option<bool> |
Whether to enable TCP keepalives for backend connections. Varnish defaults to using keepalives if this is unspecified. |
|
| tcp_keepalive_interval |
Option<i32> |
Interval in seconds between subsequent keepalive probes. |
|
| tcp_keepalive_probes |
Option<i32> |
Number of unacknowledged probes to send before considering the connection dead. |
|
| tcp_keepalive_time |
Option<i32> |
Interval in seconds between the last data packet sent and the first keepalive probe. |
|
| use_ssl |
Option<bool> |
Whether or not to require TLS for connections to this backend. |
|
| weight |
Option<i32> |
Weight used to load balance this backend against others. May be any positive integer. If auto_loadbalance is true, the chance of this backend being selected is equal to its own weight over the sum of all weights for backends that have auto_loadbalance set to true. |
|
| created_at |
Option<String> |
Date and time in ISO 8601 format. |
[readonly] |
| deleted_at |
Option<String> |
Date and time in ISO 8601 format. |
[readonly] |
| updated_at |
Option<String> |
Date and time in ISO 8601 format. |
[readonly] |
| service_id |
Option<String> |
|
[readonly] |
| version |
Option<i32> |
|
[readonly] |
| locked |
Option<bool> |
Indicates whether the version of the service this backend is attached to accepts edits. |
[readonly] |