Resource Annotations
This page presents the various resource annotations that Istio supports to control its behavior.
| Annotation Name | Feature Status | Resource Types | Description |
|---|---|---|---|
galley.istio.io/analyze-suppress | Alpha | [Any] | A comma separated list of configuration analysis message codes to suppress when Istio analyzers are run. For example, to suppress reporting of IST0103 (PodMissingProxy) and IST0108 (UnknownAnnotation) on a resource, apply the annotation 'galley.istio.io/analyze-suppress=IST0108,IST0103'. If the value is '*', then all configuration analysis messages are suppressed. |
inject.istio.io/templates | Alpha | [Pod] | The name of the inject template(s) to use, as a comma separate list. See https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#custom-templates-experimental for more information. |
install.operator.istio.io/chart-owner | Alpha | [Any] | Represents the name of the chart used to create this resource. |
install.operator.istio.io/owner-generation | Alpha | [Any] | Represents the generation to which the resource was last reconciled. |
install.operator.istio.io/version | Alpha | [Any] | Represents the Istio version associated with the resource |
istio.io/dry-run | Alpha | [AuthorizationPolicy] | Specifies whether or not the given resource is in dry-run mode. See https://istio.io/latest/docs/tasks/security/authorization/authz-dry-run/ for more information. |
istio.io/rev | Alpha | [Pod] | Specifies a control plane revision to which a given proxy is connected. This annotation is added automatically, not set by a user. In contrary to the label istio.io/rev, it represents the actual revision, not the requested revision. |
kubernetes.io/ingress.class | Stable | [Ingress] | Annotation on an Ingress resources denoting the class of controllers responsible for it. |
networking.istio.io/exportTo | Alpha | [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. |
prometheus.istio.io/merge-metrics | Alpha | [Pod] | Specifies if application Prometheus metric will be merged with Envoy metrics for this workload. |
proxy.istio.io/config | Beta | [Pod] | Overrides for the proxy configuration for this specific proxy. Available options can be found at https://istio.io/docs/reference/config/istio.mesh.v1alpha1/#ProxyConfig. |
readiness.status.sidecar.istio.io/applicationPorts | Alpha | [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 | Alpha | [Pod] | Specifies the failure threshold for the Envoy sidecar readiness probe. |
readiness.status.sidecar.istio.io/initialDelaySeconds | Alpha | [Pod] | Specifies the initial delay (in seconds) for the Envoy sidecar readiness probe. |
readiness.status.sidecar.istio.io/periodSeconds | Alpha | [Pod] | Specifies the period (in seconds) for the Envoy sidecar readiness probe. |
sidecar.istio.io/agentLogLevel | Alpha | [Pod] | Specifies the log output level for pilot-agent. |
sidecar.istio.io/bootstrapOverride | Alpha | [Pod] | Specifies an alternative Envoy bootstrap configuration file. |
sidecar.istio.io/componentLogLevel | Alpha | [Pod] | Specifies the component log level for Envoy. |
sidecar.istio.io/controlPlaneAuthPolicy | Deprecated | [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 | Deprecated | [Pod] | Specifies the XDS discovery address to be used by the Envoy sidecar. |
sidecar.istio.io/enableCoreDump | Alpha | [Pod] | Specifies whether or not an Envoy sidecar should enable core dump. |
sidecar.istio.io/extraStatTags | Alpha | [Pod] | An additional list of tags to extract from the in-proxy Istio Wasm telemetry. Each additional tag needs to be present in this list. |
sidecar.istio.io/inject | Deprecated | [Pod] | Specifies whether or not an Envoy sidecar should be automatically injected into the workload. Deprecated in favor of `sidecar.istio.io/inject` label. |
sidecar.istio.io/interceptionMode | Alpha | [Pod] | Specifies the mode used to redirect inbound connections to Envoy (REDIRECT or TPROXY). |
sidecar.istio.io/logLevel | Alpha | [Pod] | Specifies the log level for Envoy. |
sidecar.istio.io/proxyCPU | Alpha | [Pod] | Specifies the requested CPU setting for the Envoy sidecar. |
sidecar.istio.io/proxyCPULimit | Alpha | [Pod] | Specifies the CPU limit for the Envoy sidecar. |
sidecar.istio.io/proxyImage | Alpha | [Pod] | Specifies the Docker image to be used by the Envoy sidecar. |
sidecar.istio.io/proxyImageType | Alpha | [Pod] | Specifies the Docker image type to be used by the Envoy sidecar. Istio publishes debug and distroless image types for every release tag. |
sidecar.istio.io/proxyMemory | Alpha | [Pod] | Specifies the requested memory setting for the Envoy sidecar. |
sidecar.istio.io/proxyMemoryLimit | Alpha | [Pod] | Specifies the memory limit for the Envoy sidecar. |
sidecar.istio.io/rewriteAppHTTPProbers | Alpha | [Pod] | Rewrite HTTP readiness and liveness probes to be redirected to the Envoy sidecar. |
sidecar.istio.io/statsHistogramBuckets | Alpha | [Pod] | Specifies the custom histogram buckets with a prefix matcher to separate the Istio mesh metrics from the Envoy stats, e.g. `{"istiocustom":[1,5,10,50,100,500,1000,5000,10000],"cluster.xds-grpc":[1,5,10,25,50,100,250,500,1000,2500,5000,10000]}`. Default buckets are `[0.5,1,5,10,25,50,100,250,500,1000,2500,5000,10000,30000,60000,300000,600000,1800000,3600000]`. |
sidecar.istio.io/statsInclusionPrefixes | Deprecated | [Pod] | Specifies the comma separated list of prefixes of the stats to be emitted by Envoy. |
sidecar.istio.io/statsInclusionRegexps | Deprecated | [Pod] | Specifies the comma separated list of regexes the stats should match to be emitted by Envoy. |
sidecar.istio.io/statsInclusionSuffixes | Deprecated | [Pod] | Specifies the comma separated list of suffixes of the stats to be emitted by Envoy. |
sidecar.istio.io/status | Alpha | [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 | Alpha | [Pod] | Specifies one or more user volumes (as a JSON array) to be added to the Envoy sidecar. |
sidecar.istio.io/userVolumeMount | Alpha | [Pod] | Specifies one or more user volume mounts (as a JSON array) to be added to the Envoy sidecar. |
status.sidecar.istio.io/port | Alpha | [Pod] | Specifies the HTTP status Port for the Envoy sidecar. If zero, the sidecar will not provide status. |
topology.istio.io/controlPlaneClusters | Alpha | [Namespace] | A comma-separated list of clusters (or * for any) running istiod that should attempt leader election for a remote cluster thats system namespace includes this annotation. Istiod will not attempt to lead unannotated remote clusters. |
traffic.istio.io/nodeSelector | Stable | [Service] | This annotation is a set of node-labels (key1=value,key2=value). If the annotated Service is of type NodePort and is a multi-network gateway (see topology.istio.io/network), the addresses for selected nodes will be used for cross-network communication. |
traffic.sidecar.istio.io/excludeInboundPorts | Alpha | [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/excludeInterfaces | Alpha | [Pod] | A comma separated list of interfaces to be excluded from Istio traffic capture |
traffic.sidecar.istio.io/excludeOutboundIPRanges | Alpha | [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 | Alpha | [Pod] | A comma separated list of outbound ports to be excluded from redirection to Envoy. |
traffic.sidecar.istio.io/includeInboundPorts | Alpha | [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 | Alpha | [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/includeOutboundPorts | Alpha | [Pod] | A comma separated list of outbound ports for which traffic is to be redirected to Envoy, regardless of the destination IP. |
traffic.sidecar.istio.io/kubevirtInterfaces | Alpha | [Pod] | A comma separated list of virtual interfaces whose inbound traffic (from VM) will be treated as outbound. |