Resource Annotations

This page presents the various resource annotations that Istio supports to control its behavior.

Annotation NameResource TypesDescription
install.operator.istio.io/chart-owner[Any]Represents the name of the chart used to create this resource.
install.operator.istio.io/owner-generation[Any]Represents the generation to which the resource was last reconciled.
install.operator.istio.io/version[Any]Represents the Istio version associated with the resource
kubernetes.io/ingress.class[Ingress]Annotation on an Ingress resources denoting the class of controllers responsible for it.
networking.istio.io/exportTo[Service]Specifies the namespaces to which this service should be exported to. A value of '*' indicates it is reachable within the mesh '.' indicates it is reachable within its namespace.
policy.istio.io/check[Pod]Determines the policy for behavior when unable to connect to Mixer. If not set, FAIL_CLOSE is set, rejecting requests.
policy.istio.io/checkBaseRetryWaitTime[Pod]Base time to wait between retries, will be adjusted by backoff and jitter. In duration format. If not set, this will be 80ms.
policy.istio.io/checkMaxRetryWaitTime[Pod]Maximum time to wait between retries to Mixer. In duration format. If not set, this will be 1000ms.
policy.istio.io/checkRetries[Pod]The maximum number of retries on transport errors to Mixer. If not set, this will be 0, indicating no retries.
policy.istio.io/lang[Pod]Selects the attribute expression language runtime for Mixer.
readiness.status.sidecar.istio.io/applicationPorts[Pod]Specifies the list of ports exposed by the application container. Used by the Envoy sidecar readiness probe to determine that Envoy is configured and ready to receive traffic.
readiness.status.sidecar.istio.io/failureThreshold[Pod]Specifies the failure threshold for the Envoy sidecar readiness probe.
readiness.status.sidecar.istio.io/initialDelaySeconds[Pod]Specifies the initial delay (in seconds) for the Envoy sidecar readiness probe.
readiness.status.sidecar.istio.io/periodSeconds[Pod]Specifies the period (in seconds) for the Envoy sidecar readiness probe.
sidecar.istio.io/bootstrapOverride[Pod]Specifies an alternative Envoy bootstrap configuration file.
sidecar.istio.io/componentLogLevel[Pod]Specifies the component log level for Envoy.
sidecar.istio.io/controlPlaneAuthPolicy[Pod]Specifies the auth policy used by the Istio control plane. If NONE, traffic will not be encrypted. If MUTUAL_TLS, traffic between Envoy sidecar will be wrapped into mutual TLS connections.
sidecar.istio.io/discoveryAddress[Pod]Specifies the XDS discovery address to be used by the Envoy sidecar.
sidecar.istio.io/inject[Pod]Specifies whether or not an Envoy sidecar should be automatically injected into the workload.
sidecar.istio.io/interceptionMode[Pod]Specifies the mode used to redirect inbound connections to Envoy (REDIRECT or TPROXY).
sidecar.istio.io/logLevel[Pod]Specifies the log level for Envoy.
sidecar.istio.io/proxyCPU[Pod]Specifies the requested CPU setting for the Envoy sidecar.
sidecar.istio.io/proxyImage[Pod]Specifies the Docker image to be used by the Envoy sidecar.
sidecar.istio.io/proxyMemory[Pod]Specifies the requested memory setting for the Envoy sidecar.
sidecar.istio.io/rewriteAppHTTPProbers[Pod]Rewrite HTTP readiness and liveness probes to be redirected to the Envoy sidecar.
sidecar.istio.io/statsInclusionPrefixes[Pod]Specifies the comma separated list of prefixes of the stats to be emitted by Envoy.
sidecar.istio.io/statsInclusionRegexps[Pod]Specifies the comma separated list of regexes the stats should match to be emitted by Envoy.
sidecar.istio.io/statsInclusionSuffixes[Pod]Specifies the comma separated list of suffixes of the stats to be emitted by Envoy.
sidecar.istio.io/status[Pod]Generated by Envoy sidecar injection that indicates the status of the operation. Includes a version hash of the executed template, as well as names of injected resources.
sidecar.istio.io/userVolume[Pod]Specifies one or more user volumes (as a JSON array) to be added to the Envoy sidecar.
sidecar.istio.io/userVolumeMount[Pod]Specifies one or more user volume mounts (as a JSON array) to be added to the Envoy sidecar.
status.sidecar.istio.io/port[Pod]Specifies the HTTP status Port for the Envoy sidecar. If zero, the sidecar will not provide status.
traffic.sidecar.istio.io/excludeInboundPorts[Pod]A comma separated list of inbound ports to be excluded from redirection to Envoy. Only applies when all inbound traffic (i.e. '*') is being redirected.
traffic.sidecar.istio.io/excludeOutboundIPRanges[Pod]A comma separated list of IP ranges in CIDR form to be excluded from redirection. Only applies when all outbound traffic (i.e. '*') is being redirected.
traffic.sidecar.istio.io/excludeOutboundPorts[Pod]A comma separated list of outbound ports to be excluded from redirection to Envoy.
traffic.sidecar.istio.io/includeInboundPorts[Pod]A comma separated list of inbound ports for which traffic is to be redirected to Envoy. The wildcard character '*' can be used to configure redirection for all ports. An empty list will disable all inbound redirection.
traffic.sidecar.istio.io/includeOutboundIPRanges[Pod]A comma separated list of IP ranges in CIDR form to redirect to Envoy (optional). The wildcard character '*' can be used to redirect all outbound traffic. An empty list will disable all outbound redirection.
traffic.sidecar.istio.io/kubevirtInterfaces[Pod]A comma separated list of virtual interfaces whose inbound traffic (from VM) will be treated as outbound.
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