このページは、まだ日本語ではご利用いただけません。翻訳中です。
古いプラグインバージョンのドキュメントを閲覧しています。
構成
このプラグインはDB-lessモードと部分的に互換性があります。
The cluster strategy is not supported in DB-less and hybrid modes. For Kong
Gateway in DB-less or hybrid mode, the redis strategy is the only available option to configure the plugin with a central data store.
Note: We recommend setting
namespaceto a static value in DB-less mode. Thenamespacewill be regenerated on every configuration change if not explicitly set, resetting counters to zero.
互換性のあるプロトコル
Rate Limiting Advancedプラグインは以下のプロトコルに対応しています:
grpc, grpcs, http, https
パラメータ
このプラグインの設定で使用できるすべてのパラメータのリストは次のとおりです。
-
name or plugin
string requiredプラグイン名。この場合は
rate-limiting-advanced。- Kong Admin API、Kong Konnect API、宣言型構成、または decK ファイルを使用する場合、フィールドは
nameです。 - Kubernetes で KongPlugin オブジェクトを使用する場合、フィールドは
pluginです。
- Kong Admin API、Kong Konnect API、宣言型構成、または decK ファイルを使用する場合、フィールドは
-
instance_name
stringプラグインのインスタンスを識別するための任意のカスタム名 (例:
rate-limiting-advanced_my-service。インスタンス名はKong ManagerとKonnectに表示されるので、 例えば複数のサービスで同じプラグインを複数のコンテキストで実行する場合に便利です。また、Kong Admin API経由で特定のプラグインインスタンスに アクセスするためにも使用できます。
インスタンス名は、次のコンテキスト内で一意である必要があります。
- Kong Gateway Enterpriseのワークスペース内
- Konnectのコントロールプレーン(CP)またはコントロールプレーン(CP)グループ内
- Kong Gateway (OSS)の全世界
-
service.name or service.id
stringプラグインが対象とするサービス名または ID。最上位の
/pluginsエンドポイント. からプラグインをサービスに追加する場合は、これらのパラメータのいずれかを設定してください/services/{serviceName|Id}/pluginsを使用する場合は必要ありません。 -
route.name or route.id
stringプラグインがターゲットとするルート名または ID。最上位の
/pluginsエンドポイント. を通るルートにプラグインを追加する場合は、これらのパラメータのいずれかを設定してください/routes/{routeName|Id}/pluginsを使用する場合は必要ありません。 -
consumer.name or consumer.id
stringプラグインがターゲットとするコンシューマーの名前または ID。 最上位の
/pluginsエンドポイント. からコンシューマーにプラグインを追加する場合は、これらのパラメーターのいずれかを設定してください/consumers/{consumerName|Id}/pluginsを使用する場合は必要ありません。 -
consumer_group.name or consumer_group.id
stringプラグインが対象とするコンシューマグループの名前または ID。 設定されている場合、プラグインは指定されたグループが認証されているリクエストに対してのみアクティブになります
/pluginsエンドポイント./consumer_groups/{consumerGroupName|Id}/pluginsを使用する場合は必要ありません。 -
enabled
boolean default:trueこのプラグインが適用されるかどうか。
-
config
record required-
identifier
string required default:consumerMust be one of:ip,credential,consumer,service,header,path,consumer-groupThe type of identifier used to generate the rate limit key. Defines the scope used to increment the rate limiting counters. Can be
ip,credential,consumer,service,header,pathorconsumer-group.
-
window_size
array of typenumberrequiredOne or more window sizes to apply a limit to (defined in seconds). There must be a matching number of window limits and sizes specified.
-
window_type
string default:slidingMust be one of:fixed,slidingSets the time window type to either
sliding(default) orfixed. Sliding windows apply the rate limiting logic while taking into account previous hit rates (from the window that immediately precedes the current) using a dynamic weight. Fixed windows consist of buckets that are statically assigned to a definitive time range, each request is mapped to only one fixed window based on its timestamp and will affect only that window’s counters.
-
limit
array of typenumberrequiredOne or more requests-per-window limits to apply. There must be a matching number of window limits and sizes specified.
-
sync_rate
numberHow often to sync counter data to the central data store. A value of 0 results in synchronous behavior; a value of -1 ignores sync behavior entirely and only stores counters in node memory. A value greater than 0 will sync the counters in the specified number of seconds. The minimum allowed interval is 0.02 seconds (20ms).
-
namespace
string requiredThe rate limiting library namespace to use for this plugin instance. Counter data and sync configuration is isolated in each namespace. NOTE: For the plugin instances sharing the same namespace, all the configurations that are required for synchronizing counters, e.g.
strategy,redis,sync_rate,window_size,dictionary_name, need to be the same.
-
strategy
string required default:localMust be one of:cluster,redis,localThe rate-limiting strategy to use for retrieving and incrementing the limits. Available values are:
localandcluster.
-
dictionary_name
string required default:kong_rate_limiting_countersThe shared dictionary where counters are stored. When the plugin is configured to synchronize counter data externally (that is
config.strategyisclusterorredisandconfig.sync_rateisn’t-1), this dictionary serves as a buffer to populate counters in the data store on each synchronization cycle.
-
hide_client_headers
boolean default:falseOptionally hide informative response headers that would otherwise provide information about the current status of limits and counters.
-
retry_after_jitter_max
number default:0The upper bound of a jitter (random delay) in seconds to be added to the
Retry-Afterheader of denied requests (status =429) in order to prevent all the clients from coming back at the same time. The lower bound of the jitter is0; in this case, theRetry-Afterheader is equal to theRateLimit-Resetheader.
-
header_name
stringA string representing an HTTP header name.
-
path
string starts_with:/A string representing a URL path, such as /path/to/resource. Must start with a forward slash (/) and must not contain empty segments (i.e., two consecutive forward slashes).
-
redis
record required-
host
stringA string representing a host name, such as example.com.
-
port
integer between:065535An integer representing a port number between 0 and 65535, inclusive.
-
timeout
integer default:2000between:02147483646An integer representing a timeout in milliseconds. Must be between 0 and 2^31-2.
-
connect_timeout
integer between:02147483646An integer representing a timeout in milliseconds. Must be between 0 and 2^31-2.
-
send_timeout
integer between:02147483646An integer representing a timeout in milliseconds. Must be between 0 and 2^31-2.
-
read_timeout
integer between:02147483646An integer representing a timeout in milliseconds. Must be between 0 and 2^31-2.
-
username
string referenceableUsername to use for Redis connections. If undefined, ACL authentication won’t be performed. This requires Redis v6.0.0+. To be compatible with Redis v5.x.y, you can set it to
default.
-
password
string referenceable encryptedPassword to use for Redis connections. If undefined, no AUTH commands are sent to Redis.
-
sentinel_username
string referenceableSentinel username to authenticate with a Redis Sentinel instance. If undefined, ACL authentication won’t be performed. This requires Redis v6.2.0+.
-
sentinel_password
string referenceable encryptedSentinel password to authenticate with a Redis Sentinel instance. If undefined, no AUTH commands are sent to Redis Sentinels.
-
database
integer default:0Database to use for the Redis connection when using the
redisstrategy
-
keepalive_pool_size
integer default:256between:12147483646The size limit for every cosocket connection pool associated with every remote server, per worker process. If neither
keepalive_pool_sizenorkeepalive_backlogis specified, no pool is created. Ifkeepalive_pool_sizeisn’t specified butkeepalive_backlogis specified, then the pool uses the default value. Try to increase (e.g. 512) this value if latency is high or throughput is low.
-
keepalive_backlog
integer between:02147483646Limits the total number of opened connections for a pool. If the connection pool is full, connection queues above the limit go into the backlog queue. If the backlog queue is full, subsequent connect operations fail and return
nil. Queued operations (subject to set timeouts) resume once the number of connections in the pool is less thankeepalive_pool_size. If latency is high or throughput is low, try increasing this value. Empirically, this value is larger thankeepalive_pool_size.
-
sentinel_master
stringSentinel master to use for Redis connections. Defining this value implies using Redis Sentinel.
-
sentinel_role
string Must be one of:master,slave,anySentinel role to use for Redis connections when the
redisstrategy is defined. Defining this value implies using Redis Sentinel.
-
sentinel_addresses
array of typestringlen_min:1Sentinel addresses to use for Redis connections when the
redisstrategy is defined. Defining this value implies using Redis Sentinel. Each string element must be a hostname. The minimum length of the array is 1 element.
-
cluster_addresses
array of typestringlen_min:1Cluster addresses to use for Redis connections when the
redisstrategy is defined. Defining this value implies using Redis Cluster. Each string element must be a hostname. The minimum length of the array is 1 element.
-
ssl
boolean default:falseIf set to true, uses SSL to connect to Redis.
-
ssl_verify
boolean default:falseIf set to true, verifies the validity of the server SSL certificate. If setting this parameter, also configure
lua_ssl_trusted_certificateinkong.confto specify the CA (or server) certificate used by your Redis server. You may also need to configurelua_ssl_verify_depthaccordingly.
-
server_name
stringA string representing an SNI (server name indication) value for TLS.
-
-
enforce_consumer_groups
boolean default:falseDetermines if consumer groups are allowed to override the rate limiting settings for the given Route or Service. Flipping
enforce_consumer_groupsfromtruetofalsedisables the group override, but does not clear the list of consumer groups. You can then flipenforce_consumer_groupstotrueto re-enforce the groups.
-
consumer_groups
array of typestringList of consumer groups allowed to override the rate limiting settings for the given Route or Service. Required if
enforce_consumer_groupsis set totrue.
-
disable_penalty
boolean default:falseIf set to
true, this doesn’t count denied requests (status =429). If set tofalse, all requests, including denied ones, are counted. This parameter only affects theslidingwindow_type.
-
error_code
number default:429Set a custom error code to return when the rate limit is exceeded.
-
error_message
string default:API rate limit exceededSet a custom error message to return when the rate limit is exceeded.
-