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75 lines
2.9 KiB
75 lines
2.9 KiB
syntax = "proto3"; |
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package envoy.data.dns.v2alpha; |
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import "envoy/type/matcher/string.proto"; |
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import "google/protobuf/duration.proto"; |
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import "udpa/annotations/status.proto"; |
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import "validate/validate.proto"; |
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option java_package = "io.envoyproxy.envoy.data.dns.v2alpha"; |
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option java_outer_classname = "DnsTableProto"; |
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option java_multiple_files = true; |
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option go_package = "github.com/envoyproxy/go-control-plane/envoy/data/dns/v2alpha"; |
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option (udpa.annotations.file_status).work_in_progress = true; |
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option (udpa.annotations.file_status).package_version_status = FROZEN; |
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// [#protodoc-title: DNS Filter Table Data] |
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// :ref:`DNS Filter config overview <config_udp_listener_filters_dns_filter>`. |
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// This message contains the configuration for the DNS Filter if populated |
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// from the control plane |
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message DnsTable { |
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// This message contains a list of IP addresses returned for a query for a known name |
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message AddressList { |
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// This field contains a well formed IP address that is returned |
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// in the answer for a name query. The address field can be an |
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// IPv4 or IPv6 address. Address family detection is done automatically |
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// when Envoy parses the string. Since this field is repeated, |
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// Envoy will return one randomly chosen entry from this list in the |
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// DNS response. The random index will vary per query so that we prevent |
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// clients pinning on a single address for a configured domain |
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repeated string address = 1 [(validate.rules).repeated = { |
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min_items: 1 |
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items {string {min_len: 3}} |
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}]; |
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} |
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// This message type is extensible and can contain a list of addresses |
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// or dictate some other method for resolving the addresses for an |
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// endpoint |
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message DnsEndpoint { |
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oneof endpoint_config { |
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option (validate.required) = true; |
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AddressList address_list = 1; |
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} |
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} |
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message DnsVirtualDomain { |
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// The domain name for which Envoy will respond to query requests |
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string name = 1 [(validate.rules).string = {min_len: 2 well_known_regex: HTTP_HEADER_NAME}]; |
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// The configuration containing the method to determine the address |
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// of this endpoint |
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DnsEndpoint endpoint = 2; |
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// Sets the TTL in dns answers from Envoy returned to the client |
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google.protobuf.Duration answer_ttl = 3 [(validate.rules).duration = {gt {}}]; |
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} |
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// Control how many times envoy makes an attempt to forward a query to |
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// an external server |
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uint32 external_retry_count = 1; |
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// Fully qualified domain names for which Envoy will respond to queries |
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repeated DnsVirtualDomain virtual_domains = 2 [(validate.rules).repeated = {min_items: 1}]; |
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// This field serves to help Envoy determine whether it can authoritatively |
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// answer a query for a name matching a suffix in this list. If the query |
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// name does not match a suffix in this list, Envoy will forward |
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// the query to an upstream DNS server |
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repeated type.matcher.StringMatcher known_suffixes = 3; |
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}
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