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Envoy Configuration

Flightpath can configure Envoy Upstream Cluster and Route definition using the service metadata attribute. Following metadata attributes can be set on consul service:

Cluster Configuration

flightpath-cluster-conn_timeout

Integer
Default: 10 seconds
Used to set the connect_timeout attribute on Cluster configuration.

flightpath-cluster-per_conn_buf_limit_bytes

Integer
Default: 32768
Used to set the per_connection_buffer_limit_bytes attribute on Cluster configuration.

flightpath-cluster-max_req_per_conn

Integer
Default: 10,000
Used to set the max_requests_per_connection attribute on Cluster configuration.

flightpath-cluster-tcp_keepalive_probes

Integer
Default: 9 Used to configure upstream_connection_options.tcp_keepalive.keepalive_probes attribute on Cluster

flightpath-cluster-tcp_keepalive_time

Integer
Default: 300 Seconds Used to configure upstream_connection_options.tcp_keepalive.keepalive_time attribute on Cluster

flightpath-cluster-tcp_keepalive_interval

Integer
Default: 90 Seconds Used to configure upstream_connection_options.tcp_keepalive.keepalive_interval attribute on Cluster

flightpath-retry-on

String
Default: "" Used to configure retry_on attribute on route's RetryPolicy

Valid policies are 5xx, gateway-error, reset, connect-failure, retriable-4xx, refused-stream, retriable-status-codes, and retriable-headers.
Multiple policies can be specified by using a , (comma) delimited list.

flightpath-retry-attempts

Integer
Default: 3
Used to configure num_retries attribute on route's RetryPolicy

This setting is ignored if flightpath-retry-on is not set.

flightpath-retry-per_try_timeout

Integer
Default: 5
Used to configure per_try_timeout attribute on route's RetryPolicy

This setting is ignored if flightpath-retry-on is not set.

flightpath-retry-backoff_base_interval

Integer
Default: 1
Used to configure retry_back_off.base_interval attribute on route's RetryPolicy

This setting is ignored if flightpath-retry-on is not set.

flightpath-retry-backoff_max_interval

Integer
Default: 6
Used to configure retry_back_off.max_interval attribute on route's RetryPolicy

This setting is ignored if flightpath-retry-on is not set.