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149 lines
5.7 KiB
149 lines
5.7 KiB
.. _operations_admin_interface: |
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Administration interface |
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======================== |
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Envoy exposes a :ref:`local administration interface <config_admin>` that can be used to query and |
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modify different aspects of the server. |
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.. http:get:: / |
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Print a menu of all available options. |
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.. http:get:: /certs |
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List out all loaded TLS certificates, including file name, serial number, and days until |
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expiration. |
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.. http:get:: /clusters |
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List out all configured :ref:`cluster manager <arch_overview_cluster_manager>` clusters. This |
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information includes all discovered upstream hosts in each cluster along with per host statistics. |
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This is useful for debugging service discovery issues. |
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Cluster wide information |
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- :ref:`circuit breakers<config_cluster_manager_cluster_circuit_breakers>` settings for all priority settings. |
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- Information about :ref:`outlier detection<arch_overview_outlier_detection>` if a detector is installed. Currently |
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:ref:`success rate average<arch_overview_outlier_detection_ejection_event_logging_cluster_success_rate_average>`, |
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and :ref:`ejection threshold<arch_overview_outlier_detection_ejection_event_logging_cluster_success_rate_ejection_threshold>` |
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are presented. Both of these values could be ``-1`` if there was not enough data to calculate them in the last |
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:ref:`interval<config_cluster_manager_cluster_outlier_detection_interval_ms>`. |
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- ``added_via_api`` flag -- ``false`` if the cluster was added via static configuration, ``true`` |
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if it was added via the :ref:`CDS<config_cluster_manager_cds>` api. |
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Per host statistics |
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.. csv-table:: |
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:header: Name, Type, Description |
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:widths: 1, 1, 2 |
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cx_total, Counter, Total connections |
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cx_active, Gauge, Total active connections |
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cx_connect_fail, Counter, Total connection failures |
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rq_total, Counter, Total requests |
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rq_timeout, Counter, Total timed out requests |
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rq_success, Counter, Total requests with non-5xx responses |
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rq_error, Counter, Total requests with 5xx responses |
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rq_active, Gauge, Total active requests |
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healthy, String, The health status of the host. See below |
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weight, Integer, Load balancing weight (1-100) |
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zone, String, Service zone |
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canary, Boolean, Whether the host is a canary |
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success_rate, Double, "Request success rate (0-100). -1 if there was not enough |
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:ref:`request volume<config_cluster_manager_cluster_outlier_detection_success_rate_request_volume>` |
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in the :ref:`interval<config_cluster_manager_cluster_outlier_detection_interval_ms>` |
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to calculate it" |
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Host health status |
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A host is either healthy or unhealthy because of one or more different failing health states. |
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If the host is healthy the ``healthy`` output will be equal to *healthy*. |
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If the host is not healthy, the ``healthy`` output will be composed of one or more of the |
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following strings: |
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*/failed_active_hc*: The host has failed an :ref:`active health check |
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<config_cluster_manager_cluster_hc>`. |
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*/failed_outlier_check*: The host has failed an outlier detection check. |
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.. http:get:: /cpuprofiler |
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Enable or disable the CPU profiler. Requires compiling with gperftools. |
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.. _operations_admin_interface_healthcheck_fail: |
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.. http:get:: /healthcheck/fail |
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Fail inbound health checks. This requires the use of the HTTP :ref:`health check filter |
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<config_http_filters_health_check>`. This is useful for draining a server prior to shutting it |
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down or doing a full restart. Invoking this command will universally fail health check requests |
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regardless of how the filter is configured (pass through, etc.). |
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.. _operations_admin_interface_healthcheck_ok: |
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.. http:get:: /healthcheck/ok |
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Negate the effect of :http:get:`/healthcheck/fail`. This requires the use of the HTTP |
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:ref:`health check filter <config_http_filters_health_check>`. |
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.. http:get:: /hot_restart_version |
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See :option:`--hot-restart-version`. |
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.. http:get:: /logging |
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Enable/disable different logging levels on different subcomponents. Generally only used during |
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development. |
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.. http:get:: /quitquitquit |
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Cleanly exit the server. |
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.. http:get:: /reset_counters |
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Reset all counters to zero. This is useful along with :http:get:`/stats` during debugging. Note |
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that this does not drop any data sent to statsd. It just effects local output of the |
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:http:get:`/stats` command. |
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.. _operations_admin_interface_routes: |
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.. http:get:: /routes?route_config_name=<name> |
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This endpoint is only available if envoy has HTTP routes configured via RDS. |
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The endpoint dumps all the configured HTTP route tables, or only ones that |
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match the ``route_config_name`` query, if a query is specified. |
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.. http:get:: /server_info |
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Outputs information about the running server. Sample output looks like: |
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.. code-block:: none |
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envoy 267724/RELEASE live 1571 1571 0 |
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The fields are: |
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* Process name |
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* Compiled SHA and build type |
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* Health check state (live or draining) |
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* Current hot restart epoch uptime in seconds |
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* Total uptime in seconds (across all hot restarts) |
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* Current hot restart epoch |
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.. http:get:: /stats |
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Outputs all statistics on demand. This includes only counters and gauges. Histograms are not |
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output as Envoy currently has no built in histogram support and relies on statsd for |
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aggregation. This command is very useful for local debugging. See :ref:`here <operations_stats>` |
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for more information. |
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.. http:get:: /stats?format=json |
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Outputs /stats in JSON format. This can be used for programmatic access of stats. |
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.. http:get:: /stats?format=prometheus |
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Outputs /stats in `Prometheus <https://prometheus.io/docs/instrumenting/exposition_formats/>`_ |
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v0.0.4 format. This can be used to integrate with a Prometheus server. Currently, only counters and |
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gauges are outputed. Histograms will be outputed in a future update.
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