dynamic_forward_proxy

type AppleDnsResolverConfig struct {
	// contains filtered or unexported fields
}

type CaresDnsResolverConfig struct {

	// A list of dns resolver addresses.
	// :ref:`use_resolvers_as_fallback<envoy_v3_api_field_extensions.network.dns_resolver.cares.v3.CaresDnsResolverConfig.use_resolvers_as_fallback>`
	// below dictates if the DNS client should override system defaults or only use the provided
	// resolvers if the system defaults are not available, i.e., as a fallback.
	Resolvers []*v3.Address `protobuf:"bytes,1,rep,name=resolvers,proto3" json:"resolvers,omitempty"`
	// Configuration of DNS resolver option flags which control the behavior of the DNS resolver.
	DnsResolverOptions *DnsResolverOptions `protobuf:"bytes,2,opt,name=dns_resolver_options,json=dnsResolverOptions,proto3" json:"dns_resolver_options,omitempty"`
	// contains filtered or unexported fields
}

type DnsCacheCircuitBreakers struct {

	// The maximum number of pending requests that Envoy will allow to the
	// resolver. If not specified, the default is 1024.
	MaxPendingRequests *wrappers.UInt32Value `protobuf:"bytes,1,opt,name=max_pending_requests,json=maxPendingRequests,proto3" json:"max_pending_requests,omitempty"`
	// contains filtered or unexported fields
}

type DnsCacheConfig struct {

	// The DNS lookup family to use during resolution.
	//
	// [#comment:TODO(mattklein123): Figure out how to support IPv4/IPv6 "happy eyeballs" mode. The
	// way this might work is a new lookup family which returns both IPv4 and IPv6 addresses, and
	// then configures a host to have a primary and fall back address. With this, we could very
	// likely build a "happy eyeballs" connection pool which would race the primary / fall back
	// address and return the one that wins. This same method could potentially also be used for
	// QUIC to TCP fall back.]
	DnsLookupFamily DnsLookupFamily `` /* 155-byte string literal not displayed */
	// The DNS refresh rate for unresolved DNS hosts. If not specified defaults to 60s.
	//
	// The refresh rate is rounded to the closest millisecond, and must be at least 1ms.
	//
	// Once a host has been resolved, the refresh rate will be the DNS TTL, capped
	// at a minimum of 5s.
	DnsRefreshRate *duration.Duration `protobuf:"bytes,3,opt,name=dns_refresh_rate,json=dnsRefreshRate,proto3" json:"dns_refresh_rate,omitempty"`
	// The TTL for hosts that are unused. Hosts that have not been used in the configured time
	// interval will be purged. If not specified defaults to 5m.
	//
	// .. note:
	//
	//	 The TTL is only checked at the time of DNS refresh, as specified by *dns_refresh_rate*. This
	//	 means that if the configured TTL is shorter than the refresh rate the host may not be removed
	//	 immediately.
	//
	//	.. note:
	//
	//	 The TTL has no relation to DNS TTL and is only used to control Envoy's resource usage.
	HostTtl *duration.Duration `protobuf:"bytes,4,opt,name=host_ttl,json=hostTtl,proto3" json:"host_ttl,omitempty"`
	// The maximum number of hosts that the cache will hold. If not specified defaults to 1024.
	//
	// .. note:
	//
	//	The implementation is approximate and enforced independently on each worker thread, thus
	//	it is possible for the maximum hosts in the cache to go slightly above the configured
	//	value depending on timing. This is similar to how other circuit breakers work.
	MaxHosts *wrappers.UInt32Value `protobuf:"bytes,5,opt,name=max_hosts,json=maxHosts,proto3" json:"max_hosts,omitempty"`
	// If the DNS failure refresh rate is specified,
	// this is used as the cache's DNS refresh rate when DNS requests are failing. If this setting is
	// not specified, the failure refresh rate defaults to the dns_refresh_rate.
	DnsFailureRefreshRate *RefreshRate `` /* 128-byte string literal not displayed */
	// The config of circuit breakers for resolver. It provides a configurable threshold.
	// Envoy will use dns cache circuit breakers with default settings even if this value is not set.
	DnsCacheCircuitBreaker *DnsCacheCircuitBreakers `` /* 131-byte string literal not displayed */
	// Types that are assignable to DnsCacheType:
	//
	//	*DnsCacheConfig_CaresDns
	//	*DnsCacheConfig_AppleDns
	DnsCacheType isDnsCacheConfig_DnsCacheType `protobuf_oneof:"DnsCacheType"`
	// Hostnames that should be preresolved into the cache upon creation. This might provide a
	// performance improvement, in the form of cache hits, for hostnames that are going to be
	// resolved during steady state and are known at config load time.
	PreresolveHostnames []*v3.SocketAddress `protobuf:"bytes,10,rep,name=preresolve_hostnames,json=preresolveHostnames,proto3" json:"preresolve_hostnames,omitempty"`
	// The timeout used for DNS queries. This timeout is independent of any timeout and retry policy
	// used by the underlying DNS implementation (e.g., c-areas and Apple DNS) which are opaque.
	// Setting this timeout will ensure that queries succeed or fail within the specified time frame
	// and are then retried using the standard refresh rates. Defaults to 5s if not set.
	DnsQueryTimeout *duration.Duration `protobuf:"bytes,11,opt,name=dns_query_timeout,json=dnsQueryTimeout,proto3" json:"dns_query_timeout,omitempty"`
	// contains filtered or unexported fields
}

type DnsCacheConfig_AppleDns struct {
	AppleDns *AppleDnsResolverConfig `protobuf:"bytes,9,opt,name=apple_dns,json=appleDns,proto3,oneof"`
}

type DnsCacheConfig_CaresDns struct {
	CaresDns *CaresDnsResolverConfig `protobuf:"bytes,8,opt,name=cares_dns,json=caresDns,proto3,oneof"`
}

type DnsLookupFamily int32

type DnsResolverOptions struct {

	// Use TCP for all DNS queries instead of the default protocol UDP.
	UseTcpForDnsLookups bool `protobuf:"varint,1,opt,name=use_tcp_for_dns_lookups,json=useTcpForDnsLookups,proto3" json:"use_tcp_for_dns_lookups,omitempty"`
	// Do not use the default search domains; only query hostnames as-is or as aliases.
	NoDefaultSearchDomain bool `` /* 129-byte string literal not displayed */
	// contains filtered or unexported fields
}

type FilterConfig struct {

	// The DNS cache configuration that the filter will attach to. Note this configuration must
	// match that of associated :ref:`dynamic forward proxy cluster configuration
	// <envoy_api_field_config.cluster.dynamic_forward_proxy.v2alpha.ClusterConfig.dns_cache_config>`.
	DnsCacheConfig *DnsCacheConfig `protobuf:"bytes,1,opt,name=dns_cache_config,json=dnsCacheConfig,proto3" json:"dns_cache_config,omitempty"`
	// When this flag is set, the filter will add the resolved upstream address in the filter
	// state. The state should be saved with key
	// `envoy.stream.upstream_address` (See
	// :repo:`upstream_address.h<source/common/stream_info/upstream_address.h>`).
	SaveUpstreamAddress bool `protobuf:"varint,2,opt,name=save_upstream_address,json=saveUpstreamAddress,proto3" json:"save_upstream_address,omitempty"`
	// If provided, the autogenerated dynamic forward proxy cluster will use TLS when connecting to upstream hosts and verify the certificate chain
	SslConfig *ssl.UpstreamSslConfig `protobuf:"bytes,3,opt,name=ssl_config,json=sslConfig,proto3" json:"ssl_config,omitempty"`
	// contains filtered or unexported fields
}

type PerRouteConfig struct {

	// Types that are assignable to HostRewriteSpecifier:
	//
	//	*PerRouteConfig_HostRewrite
	//	*PerRouteConfig_AutoHostRewriteHeader
	HostRewriteSpecifier isPerRouteConfig_HostRewriteSpecifier `protobuf_oneof:"host_rewrite_specifier"`
	// contains filtered or unexported fields
}

type PerRouteConfig_AutoHostRewriteHeader struct {
	// Indicates that before DNS lookup, the host header will be swapped with
	// the value of this header. If not set or empty, the original host header
	// value will be used and no rewrite will happen.
	//
	// Note: this rewrite affects both DNS lookup and host header forwarding. However, this
	// option shouldn't be used with
	// :ref:`HCM host rewrite header <envoy_api_field_route.RouteAction.auto_host_rewrite_header>`
	// given that the value set here would be used for DNS lookups whereas the value set in the HCM
	// would be used for host header forwarding which is not the desired outcome.
	//
	// .. note::
	//
	//	If the header appears multiple times only the first value is used.
	AutoHostRewriteHeader string `protobuf:"bytes,2,opt,name=auto_host_rewrite_header,json=autoHostRewriteHeader,proto3,oneof"`
}

type PerRouteConfig_HostRewrite struct {
	// Indicates that before DNS lookup, the host header will be swapped with
	// this value. If not set or empty, the original host header value
	// will be used and no rewrite will happen.
	//
	// Note: this rewrite affects both DNS lookup and host header forwarding. However, this
	// option shouldn't be used with
	// :ref:`HCM host rewrite <envoy_api_field_route.RouteAction.host_rewrite>` given that the
	// value set here would be used for DNS lookups whereas the value set in the HCM would be used
	// for host header forwarding which is not the desired outcome.
	HostRewrite string `protobuf:"bytes,1,opt,name=host_rewrite,json=hostRewrite,proto3,oneof"`
}

type RefreshRate struct {

	// Specifies the base interval between refreshes. This parameter is required and must be greater
	// than 1ms and less than
	// :ref:`max_interval <envoy_v3_api_field_config.cluster.v3.Cluster.RefreshRate.max_interval>`.
	BaseInterval *duration.Duration `protobuf:"bytes,1,opt,name=base_interval,json=baseInterval,proto3" json:"base_interval,omitempty"`
	// Specifies the maximum interval between refreshes. This parameter is optional, but must be
	// greater than or equal to the
	// :ref:`base_interval <envoy_v3_api_field_config.cluster.v3.Cluster.RefreshRate.base_interval>`  if set. The default
	// is 10 times the :ref:`base_interval <envoy_v3_api_field_config.cluster.v3.Cluster.RefreshRate.base_interval>`.
	MaxInterval *duration.Duration `protobuf:"bytes,2,opt,name=max_interval,json=maxInterval,proto3" json:"max_interval,omitempty"`
	// contains filtered or unexported fields
}