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---
WARNING: THIS IS AN AUTO-GENERATED FILE, DO NOT EDIT. PLEASE MODIFY THE ORIGINAL SOURCE IN THE 'https://github.com/istio/api' REPO
source_repo: https://github.com/istio/api
title: Telemetry
description: Telemetry configuration for workloads.
location: https://istio.io/docs/reference/config/telemetry.html
layout: protoc-gen-docs
generator: protoc-gen-docs
schema: istio.telemetry.v1alpha1.Telemetry
aliases: [/zh/docs/reference/config/telemetry/v1alpha1/telemetry]
number_of_entries: 18
---
<p>Telemetry defines how the telemetry is generated for workloads within a mesh.</p>
<p>For mesh level configuration, put the resource in root configuration
namespace for your Istio installation <em>without</em> a workload selector.</p>
<p>For any namespace, including the root configuration namespace, it is only
valid to have a single workload selector-less Telemetry resource.</p>
<p>For resources with a workload selector, it is only valid to have one resource
selecting any given workload.</p>
<p>The hierarchy of Telemetry configuration is as follows:</p>
<ol>
<li>Workload-specific configuration</li>
<li>Namespace-specific configuration</li>
<li>Root namespace configuration</li>
</ol>
<p>Examples:</p>
<p>Policy to enable random sampling for 10% of traffic:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: mesh-default
namespace: istio-system
spec:
# no selector specified, applies to all workloads
tracing:
- randomSamplingPercentage: 10.00
</code></pre>
<p>Policy to disable trace reporting for the &ldquo;foo&rdquo; workload (note: tracing
context will still be propagated):</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: foo-tracing
namespace: bar
spec:
selector:
matchLabels:
service.istio.io/canonical-name: foo
tracing:
- disableSpanReporting: true
</code></pre>
<p>Policy to select the alternate zipkin provider for trace reporting:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: foo-tracing-alternate
namespace: baz
spec:
selector:
matchLabels:
service.istio.io/canonical-name: foo
tracing:
- providers:
- name: &quot;zipkin-alternate&quot;
randomSamplingPercentage: 10.00
</code></pre>
<p>Policy to add a custom tag from a literal value:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: mesh-default
namespace: istio-system
spec:
# no selector specified, applies to all workloads
tracing:
- randomSamplingPercentage: 10.00
customTags:
my_new_foo_tag:
literal:
value: &quot;foo&quot;
</code></pre>
<p>Policy to disable server-side metrics for Stackdriver for an entire mesh:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: mesh-default
namespace: istio-system
spec:
# no selector specified, applies to all workloads
metrics:
- providers:
- name: stackdriver
overrides:
- match:
metric: ALL_METRICS
mode: SERVER
disabled: true
</code></pre>
<p>Policy to add dimensions to all Prometheus metrics for the <code>foo</code> namespace:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: namespace-metrics
namespace: foo
spec:
# no selector specified, applies to all workloads in the namespace
metrics:
- providers:
- name: prometheus
overrides:
# match clause left off matches all istio metrics, client and server
- tagOverrides:
request_method:
value: &quot;request.method&quot;
request_host:
value: &quot;request.host&quot;
</code></pre>
<p>Policy to remove the response_code dimension on some Prometheus metrics for
the <code>bar.foo</code> workload:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: remove-response-code
namespace: foo
spec:
selector:
matchLabels:
service.istio.io/canonical-name: bar
metrics:
- providers:
- name: prometheus
overrides:
- match:
metric: REQUEST_COUNT
tagOverrides:
response_code:
operation: REMOVE
- match:
metric: REQUEST_DURATION
tagOverrides:
response_code:
operation: REMOVE
- match:
metric: REQUEST_BYTES
tagOverrides:
response_code:
operation: REMOVE
- match:
metric: RESPONSE_BYTES
tagOverrides:
response_code:
operation: REMOVE
</code></pre>
<p>Policy to enable access logging for the entire mesh:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: mesh-default
namespace: istio-system
spec:
# no selector specified, applies to all workloads
accessLogging:
- providers:
- name: envoy
# By default, this turns on access logging (no need to set `disabled:
false`). # Unspecified `disabled` will be treated as `disabled: false`,
except in # cases where a parent configuration has marked as `disabled:
true`. In # those cases, `disabled: false` must be set explicitly to
override.
</code></pre>
<p>Policy to disable access logging for the <code>foo</code> namespace:</p>
<pre><code class="language-yaml">apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
name: namespace-no-log
namespace: foo
spec:
# no selector specified, applies to all workloads in the namespace
accessLogging:
- disabled: true
</code></pre>
<h2 id="Telemetry">Telemetry</h2>
<section>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Telemetry-selector">
<td><code>selector</code></td>
<td><code><a href="/zh/docs/reference/config/type/workload-selector/#WorkloadSelector">WorkloadSelector</a></code></td>
<td>
<p>Optional. The selector decides where to apply the Telemetry policy.
If not set, the Telemetry policy will be applied to all workloads in the
same namespace as the Telemetry policy.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Telemetry-tracing">
<td><code>tracing</code></td>
<td><code><a href="#Tracing">Tracing[]</a></code></td>
<td>
<p>Optional. Tracing configures the tracing behavior for all
selected workloads.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Telemetry-metrics">
<td><code>metrics</code></td>
<td><code><a href="#Metrics">Metrics[]</a></code></td>
<td>
<p>Optional. Metrics configure the metrics behavior for all
selected workloads.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Telemetry-access_logging">
<td><code>accessLogging</code></td>
<td><code><a href="#AccessLogging">AccessLogging[]</a></code></td>
<td>
<p>Optional. AccessLogging configures the access logging behavior for all
selected workloads.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="Tracing">Tracing</h2>
<section>
<p>Tracing configures tracing behavior for workloads within a mesh.
It can be used to enable/disable tracing, as well as to set sampling
rates and custom tag extraction.</p>
<p>Tracing configuration support overrides of the fields <code>providers</code>,
<code>random_sampling_percentage</code>, <code>disable_span_reporting</code>, and <code>custom_tags</code> at
each level in the configuration hierarchy, with missing values filled in
from parent resources. However, when specified, <code>custom_tags</code> will
fully replace any values provided by parent configuration.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Tracing-match">
<td><code>match</code></td>
<td><code><a href="#Tracing-TracingSelector">TracingSelector</a></code></td>
<td>
<p>Allows tailoring of behavior to specific conditions.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-providers">
<td><code>providers</code></td>
<td><code><a href="#ProviderRef">ProviderRef[]</a></code></td>
<td>
<p>Optional. Name of provider(s) to use for span reporting. If a provider is
not specified, the [default tracing
provider][istio.mesh.v1alpha1.MeshConfig.default_providers.tracing] will be
used. NOTE: At the moment, only a single provider can be specified in a
given Tracing rule.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-random_sampling_percentage">
<td><code>randomSamplingPercentage</code></td>
<td><code><a href="https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#doublevalue">DoubleValue</a></code></td>
<td>
<p>Controls the rate at which traffic will be selected for tracing if no
prior sampling decision has been made. If a prior sampling decision has
been made, that decision will be respected. However, if no sampling
decision has been made (example: no <code>x-b3-sampled</code> tracing header was
present in the requests), the traffic will be selected for telemetry
generation at the percentage specified.</p>
<p>Defaults to 0%. Valid values [0.00-100.00]. Can be specified in 0.01%
increments.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-disable_span_reporting">
<td><code>disableSpanReporting</code></td>
<td><code><a href="https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#boolvalue">BoolValue</a></code></td>
<td>
<p>Controls span reporting. If set to true, no spans will be reported for
impacted workloads. This does NOT impact context propagation or trace
sampling behavior.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-custom_tags">
<td><code>customTags</code></td>
<td><code>map&lt;string,&nbsp;<a href="#Tracing-CustomTag">CustomTag</a>&gt;</code></td>
<td>
<p>Optional. Configures additional custom tags to the generated trace spans.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="ProviderRef">ProviderRef</h2>
<section>
<p>Used to bind Telemetry configuration to specific providers for
targeted customization.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="ProviderRef-name">
<td><code>name</code></td>
<td><code>string</code></td>
<td>
<p>Required. Name of Telemetry provider in MeshConfig.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="Metrics">Metrics</h2>
<section>
<p>Metrics defines the workload-level overrides for metrics generation behavior
within a mesh. It can be used to enable/disable metrics generation, as well
as to customize the dimensions of the generated metrics.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Metrics-providers">
<td><code>providers</code></td>
<td><code><a href="#ProviderRef">ProviderRef[]</a></code></td>
<td>
<p>Optional. Name of providers to which this configuration should apply.
If a provider is not specified, the [default metrics
provider][istio.mesh.v1alpha1.MeshConfig.default_providers.metrics] will be
used.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Metrics-overrides">
<td><code>overrides</code></td>
<td><code><a href="#MetricsOverrides">MetricsOverrides[]</a></code></td>
<td>
<p>Optional. Ordered list of overrides to metrics generation behavior.</p>
<p>Specified overrides will be applied in order. They will be applied on
top of inherited overrides from other resources in the hierarchy in the
following order:
1. Mesh-scoped overrides
2. Namespace-scoped overrides
3. Workload-scoped overrides</p>
<p>Because overrides are applied in order, users are advised to order their
overrides from least specific to most specific matches. That is, it is
a best practice to list any universal overrides first, with tailored
overrides following them.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="MetricSelector">MetricSelector</h2>
<section>
<p>Provides a mechanism for matching metrics for the application of override
behaviors.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="MetricSelector-metric" class="oneof oneof-start">
<td><code>metric</code></td>
<td><code><a href="#MetricSelector-IstioMetric">IstioMetric (oneof)</a></code></td>
<td>
<p>One of the well-known Istio Standard Metrics.</p>
</td>
<td>
No
</td>
</tr>
<tr id="MetricSelector-custom_metric" class="oneof">
<td><code>customMetric</code></td>
<td><code>string (oneof)</code></td>
<td>
<p>Allows free-form specification of a metric. No validation of custom
metrics is provided.</p>
</td>
<td>
No
</td>
</tr>
<tr id="MetricSelector-mode">
<td><code>mode</code></td>
<td><code><a href="#WorkloadMode">WorkloadMode</a></code></td>
<td>
<p>Controls which mode of metrics generation is selected: CLIENT and/or
SERVER.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="MetricsOverrides">MetricsOverrides</h2>
<section>
<p>MetricsOverrides defines custom metric generation behavior for an individual
metric or the set of all standard metrics.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="MetricsOverrides-match">
<td><code>match</code></td>
<td><code><a href="#MetricSelector">MetricSelector</a></code></td>
<td>
<p>Match allows provides the scope of the override. It can be used to select
individual metrics, as well as the workload modes (server and/or client)
in which the metrics will be generated.</p>
<p>If match is not specified, the overrides will apply to <em>all</em> metrics for
<em>both</em> modes of operation (client and server).</p>
</td>
<td>
No
</td>
</tr>
<tr id="MetricsOverrides-disabled">
<td><code>disabled</code></td>
<td><code><a href="https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#boolvalue">BoolValue</a></code></td>
<td>
<p>Optional. Must explicitly set this to &ldquo;true&rdquo; to turn off metrics reporting
for the listed metrics. If disabled has been set to &ldquo;true&rdquo; in a parent
configuration, it must explicitly be set to &ldquo;false&rdquo; to turn metrics
reporting on in the workloads selected by the Telemetry resource.</p>
</td>
<td>
No
</td>
</tr>
<tr id="MetricsOverrides-tag_overrides">
<td><code>tagOverrides</code></td>
<td><code>map&lt;string,&nbsp;<a href="#MetricsOverrides-TagOverride">TagOverride</a>&gt;</code></td>
<td>
<p>Optional. Collection of tag names and tag expressions to override in the
selected metric(s).
The key in the map is the name of the tag.
The value in the map is the operation to perform on the the tag.
WARNING: some providers may not support adding/removing tags.
See also: https://istio.io/latest/docs/reference/config/metrics/#labels</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="AccessLogging">AccessLogging</h2>
<section>
<p>Access logging defines the workload-level overrides for access log
generation. It can be used to select provider or enable/disable access log
generation for a workload.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="AccessLogging-match">
<td><code>match</code></td>
<td><code><a href="#AccessLogging-LogSelector">LogSelector</a></code></td>
<td>
<p>Allows tailoring of logging behavior to specific conditions.</p>
</td>
<td>
No
</td>
</tr>
<tr id="AccessLogging-providers">
<td><code>providers</code></td>
<td><code><a href="#ProviderRef">ProviderRef[]</a></code></td>
<td>
<p>Optional. Name of providers to which this configuration should apply.
If a provider is not specified, the [default logging
provider][istio.mesh.v1alpha1.MeshConfig.default_providers.] will be used.</p>
</td>
<td>
No
</td>
</tr>
<tr id="AccessLogging-disabled">
<td><code>disabled</code></td>
<td><code><a href="https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#boolvalue">BoolValue</a></code></td>
<td>
<p>Controls logging. If set to true, no access logs will be generated for
impacted workloads (for the specified providers).
NOTE: currently default behavior will be controlled by the provider(s)
selected above. Customization controls will be added to this API in
future releases.</p>
</td>
<td>
No
</td>
</tr>
<tr id="AccessLogging-filter">
<td><code>filter</code></td>
<td><code><a href="#AccessLogging-Filter">Filter</a></code></td>
<td>
<p>Optional. If specified, this filter will be used to select specific
requests/connections for logging.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="Tracing-TracingSelector">Tracing.TracingSelector</h2>
<section>
<p>TracingSelector provides a coarse-grained ability to configure tracing
behavior based on certain traffic metadata (such as traffic direction).</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Tracing-TracingSelector-mode">
<td><code>mode</code></td>
<td><code><a href="#WorkloadMode">WorkloadMode</a></code></td>
<td>
<p>This determines whether or not to apply the tracing configuration
based on the direction of traffic relative to the proxied workload.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="Tracing-CustomTag">Tracing.CustomTag</h2>
<section>
<p>CustomTag defines a tag to be added to a trace span that is based on
an operator-supplied value. This value can either be a hard-coded value,
a value taken from an environment variable known to the sidecar proxy, or
from a request header.</p>
<p>NOTE: when specified, <code>custom_tags</code> will fully replace any values provided
by parent configuration.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Tracing-CustomTag-literal" class="oneof oneof-start">
<td><code>literal</code></td>
<td><code><a href="#Tracing-Literal">Literal (oneof)</a></code></td>
<td>
<p>Literal adds the same, hard-coded value to each span.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-CustomTag-environment" class="oneof">
<td><code>environment</code></td>
<td><code><a href="#Tracing-Environment">Environment (oneof)</a></code></td>
<td>
<p>Environment adds the value of an environment variable to each span.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-CustomTag-header" class="oneof">
<td><code>header</code></td>
<td><code><a href="#Tracing-RequestHeader">RequestHeader (oneof)</a></code></td>
<td>
<p>RequestHeader adds the value of an header from the request to each
span.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="Tracing-Literal">Tracing.Literal</h2>
<section>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Tracing-Literal-value">
<td><code>value</code></td>
<td><code>string</code></td>
<td>
<p>The tag value to use.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="Tracing-Environment">Tracing.Environment</h2>
<section>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Tracing-Environment-name">
<td><code>name</code></td>
<td><code>string</code></td>
<td>
<p>Name of the environment variable from which to extract the tag value.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-Environment-default_value">
<td><code>defaultValue</code></td>
<td><code>string</code></td>
<td>
<p>Optional. If the environment variable is not found, this value will be
used instead.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="Tracing-RequestHeader">Tracing.RequestHeader</h2>
<section>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Tracing-RequestHeader-name">
<td><code>name</code></td>
<td><code>string</code></td>
<td>
<p>Name of the header from which to extract the tag value.</p>
</td>
<td>
No
</td>
</tr>
<tr id="Tracing-RequestHeader-default_value">
<td><code>defaultValue</code></td>
<td><code>string</code></td>
<td>
<p>Optional. If the header is not found, this value will be
used instead.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="MetricsOverrides-TagOverride">MetricsOverrides.TagOverride</h2>
<section>
<p>TagOverride specifies an operation to perform on a metric dimension (also
known as a <code>label</code>). Tags may be added, removed, or have their default
values overridden.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="MetricsOverrides-TagOverride-operation">
<td><code>operation</code></td>
<td><code><a href="#MetricsOverrides-TagOverride-Operation">Operation</a></code></td>
<td>
<p>Operation controls whether or not to update/add a tag, or to remove it.</p>
</td>
<td>
No
</td>
</tr>
<tr id="MetricsOverrides-TagOverride-value">
<td><code>value</code></td>
<td><code>string</code></td>
<td>
<p>Value is only considered if the operation is <code>UPSERT</code>.
Values are <a href="https://opensource.google/projects/cel">CEL expressions</a> over
attributes. Examples include: &ldquo;string(destination.port)&rdquo; and
&ldquo;request.host&rdquo;. Istio exposes all standard <a href="https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/advanced/attributes">Envoy
attributes</a>.
Additionally, Istio exposes node metadata as attributes.
More information is provided in the <a href="/latest/docs/tasks/observability/metrics/customize-metrics/#use-expressions-for-values">customization
docs</a>.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="AccessLogging-LogSelector">AccessLogging.LogSelector</h2>
<section>
<p>LogSelector provides a coarse-grained ability to configure logging behavior
based on certain traffic metadata (such as traffic direction). LogSelector
applies to traffic metadata which is not represented in the attribute set
currently supported by Filters. It allows control planes to limit the
configuration sent to individual workloads. Finer-grained logging behavior
can be further configured via <code>filter</code>.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="AccessLogging-LogSelector-mode">
<td><code>mode</code></td>
<td><code><a href="#WorkloadMode">WorkloadMode</a></code></td>
<td>
<p>This determines whether or not to apply the access logging configuration
based on the direction of traffic relative to the proxied workload.</p>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="AccessLogging-Filter">AccessLogging.Filter</h2>
<section>
<p>Allows specification of an access log filter.</p>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="AccessLogging-Filter-expression">
<td><code>expression</code></td>
<td><code>string</code></td>
<td>
<p>CEL expression for selecting when requests/connections should be logged.</p>
<p>Examples:</p>
<ul>
<li><code>response.code &gt;= 400</code></li>
<li><code>connection.mtls &amp;&amp; request.url_path.contains('v1beta3')</code></li>
</ul>
</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="MetricSelector-IstioMetric">MetricSelector.IstioMetric</h2>
<section>
<p>Curated list of known metric types that is supported by Istio metric
providers. See also:
https://istio.io/latest/docs/reference/config/metrics/#metrics</p>
<table class="enum-values">
<thead>
<tr>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr id="MetricSelector-IstioMetric-ALL_METRICS">
<td><code>ALL_METRICS</code></td>
<td>
<p>Use of this enum indicates that the override should apply to all Istio
default metrics.</p>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-REQUEST_COUNT">
<td><code>REQUEST_COUNT</code></td>
<td>
<p>Counter of requests to/from an application, generated for HTTP, HTTP/2,
and GRPC traffic.</p>
<p>The Prometheus provider exports this metric as: <code>istio_requests_total</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/request_count</code> (SERVER mode)</li>
<li><code>istio.io/service/client/request_count</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-REQUEST_DURATION">
<td><code>REQUEST_DURATION</code></td>
<td>
<p>Histogram of request durations, generated for HTTP, HTTP/2, and GRPC
traffic.</p>
<p>The Prometheus provider exports this metric as:
<code>istio_request_duration_milliseconds</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/response_latencies</code> (SERVER mode)</li>
<li><code>istio.io/service/client/roundtrip_latencies</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-REQUEST_SIZE">
<td><code>REQUEST_SIZE</code></td>
<td>
<p>Histogram of request body sizes, generated for HTTP, HTTP/2, and GRPC
traffic.</p>
<p>The Prometheus provider exports this metric as: <code>istio_request_bytes</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/request_bytes</code> (SERVER mode)</li>
<li><code>istio.io/service/client/request_bytes</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-RESPONSE_SIZE">
<td><code>RESPONSE_SIZE</code></td>
<td>
<p>Histogram of response body sizes, generated for HTTP, HTTP/2, and GRPC
traffic.</p>
<p>The Prometheus provider exports this metric as: <code>istio_response_bytes</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/response_bytes</code> (SERVER mode)</li>
<li><code>istio.io/service/client/response_bytes</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-TCP_OPENED_CONNECTIONS">
<td><code>TCP_OPENED_CONNECTIONS</code></td>
<td>
<p>Counter of TCP connections opened over lifetime of workload.</p>
<p>The Prometheus provider exports this metric as:
<code>istio_tcp_connections_opened_total</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/connection_open_count</code> (SERVER mode)</li>
<li><code>istio.io/service/client/connection_open_count</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-TCP_CLOSED_CONNECTIONS">
<td><code>TCP_CLOSED_CONNECTIONS</code></td>
<td>
<p>Counter of TCP connections closed over lifetime of workload.</p>
<p>The Prometheus provider exports this metric as:
<code>istio_tcp_connections_closed_total</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/connection_close_count</code> (SERVER mode)</li>
<li><code>istio.io/service/client/connection_close_count</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-TCP_SENT_BYTES">
<td><code>TCP_SENT_BYTES</code></td>
<td>
<p>Counter of bytes sent during a response over a TCP connection.</p>
<p>The Prometheus provider exports this metric as:
<code>istio_tcp_sent_bytes_total</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/sent_bytes_count</code> (SERVER mode)</li>
<li><code>istio.io/service/client/sent_bytes_count</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-TCP_RECEIVED_BYTES">
<td><code>TCP_RECEIVED_BYTES</code></td>
<td>
<p>Counter of bytes received during a request over a TCP connection.</p>
<p>The Prometheus provider exports this metric as:
<code>istio_tcp_received_bytes_total</code>.</p>
<p>The Stackdriver provider exports this metric as:</p>
<ul>
<li><code>istio.io/service/server/received_bytes_count</code> (SERVER mode)</li>
<li><code>istio.io/service/client/received_bytes_count</code> (CLIENT mode)</li>
</ul>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-GRPC_REQUEST_MESSAGES">
<td><code>GRPC_REQUEST_MESSAGES</code></td>
<td>
<p>Counter incremented for every gRPC messages sent from a client.</p>
<p>The Prometheus provider exports this metric as:
<code>istio_request_messages_total</code></p>
</td>
</tr>
<tr id="MetricSelector-IstioMetric-GRPC_RESPONSE_MESSAGES">
<td><code>GRPC_RESPONSE_MESSAGES</code></td>
<td>
<p>Counter incremented for every gRPC messages sent from a server.</p>
<p>The Prometheus provider exports this metric as:
<code>istio_response_messages_total</code></p>
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="MetricsOverrides-TagOverride-Operation">MetricsOverrides.TagOverride.Operation</h2>
<section>
<table class="enum-values">
<thead>
<tr>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr id="MetricsOverrides-TagOverride-Operation-UPSERT">
<td><code>UPSERT</code></td>
<td>
<p>Insert or Update the tag with the provided value expression. The
<code>value</code> field MUST be specified if UPSERT is used as the operation.</p>
</td>
</tr>
<tr id="MetricsOverrides-TagOverride-Operation-REMOVE">
<td><code>REMOVE</code></td>
<td>
<p>Specifies that the tag should not be included in the metric when
generated.</p>
</td>
</tr>
</tbody>
</table>
</section>
<h2 id="WorkloadMode">WorkloadMode</h2>
<section>
<p>WorkloadMode allows selection of the role of the underlying workload in
network traffic. A workload is considered as acting as a SERVER if it is
the destination of the traffic (that is, traffic direction, from the
perspective of the workload is <em>inbound</em>). If the workload is the source of
the network traffic, it is considered to be in CLIENT mode (traffic is
<em>outbound</em> from the workload).</p>
<table class="enum-values">
<thead>
<tr>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr id="WorkloadMode-CLIENT_AND_SERVER">
<td><code>CLIENT_AND_SERVER</code></td>
<td>
<p>Selects for scenarios when the workload is either the
source or destination of the network traffic.</p>
</td>
</tr>
<tr id="WorkloadMode-CLIENT">
<td><code>CLIENT</code></td>
<td>
<p>Selects for scenarios when the workload is the
source of the network traffic.</p>
</td>
</tr>
<tr id="WorkloadMode-SERVER">
<td><code>SERVER</code></td>
<td>
<p>Selects for scenarios when the workload is the
destination of the network traffic.</p>
</td>
</tr>
</tbody>
</table>
</section>
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