--- title: Log Entry overview: A template that represents a single runtime log entry. location: https://istio.io/docs/reference/config/template/logentry.html layout: protoc-gen-docs number_of_entries: 3 ---

The logentry template represents an individual entry within a log.

Template

The logentry template represents an individual entry within a log.

When writing the configuration, the value for the fields associated with this template can either be a literal or an expression. Please note that if the datatype of a field is not istio.mixer.adapter.model.v1beta1.Value, then the expression’s inferred type must match the datatype of the field.

Example config:

apiVersion: "config.istio.io/v1alpha2"
kind: logentry
metadata:
  name: accesslog
  namespace: istio-system
spec:
  severity: '"Default"'
  timestamp: request.time
  variables:
    sourceIp: source.ip | ip("0.0.0.0")
    destinationIp: destination.ip | ip("0.0.0.0")
    sourceUser: source.user | ""
    method: request.method | ""
    url: request.path | ""
    protocol: request.scheme | "http"
    responseCode: response.code | 0
    responseSize: response.size | 0
    requestSize: request.size | 0
    latency: response.duration | "0ms"
  monitored_resource_type: '"UNSPECIFIED"'
Field Type Description
variables map<string, istio.mixer.adapter.model.v1beta1.Value>

Variables that are delivered for each log entry.

timestamp istio.mixer.adapter.model.v1beta1.TimeStamp

Timestamp is the time value for the log entry

severity string

Severity indicates the importance of the log entry.

monitoredResourceType string

Optional. An expression to compute the type of the monitored resource this log entry is being recorded on. If the logging backend supports monitored resources, these fields are used to populate that resource. Otherwise these fields will be ignored by the adapter.

monitoredResourceDimensions map<string, istio.mixer.adapter.model.v1beta1.Value>

Optional. A set of expressions that will form the dimensions of the monitored resource this log entry is being recorded on. If the logging backend supports monitored resources, these fields are used to populate that resource. Otherwise these fields will be ignored by the adapter.

istio.mixer.adapter.model.v1beta1.TimeStamp

TimeStamp is used inside templates for fields that are of ValueType “TIMESTAMP”

Field Type Description
value google.protobuf.Timestamp

TimeStamp encoded as google.protobuf.Timestamp.

istio.mixer.adapter.model.v1beta1.Value

Value is used inside templates for fields that have dynamic types. The actual datatype of the field depends on the datatype of the expression used in the operator configuration.

Field Type Description
stringValue string (oneof)

Used for values of type STRING

int64Value int64 (oneof)

Used for values of type INT64

doubleValue double (oneof)

Used for values of type DOUBLE

boolValue bool (oneof)

Used for values of type BOOL

ipAddressValue istio.mixer.adapter.model.v1beta1.IPAddress (oneof)

Used for values of type IPAddress

timestampValue istio.mixer.adapter.model.v1beta1.TimeStamp (oneof)

Used for values of type TIMESTAMP

durationValue istio.mixer.adapter.model.v1beta1.Duration (oneof)

Used for values of type DURATION

emailAddressValue istio.mixer.adapter.model.v1beta1.EmailAddress (oneof)

Used for values of type EmailAddress

dnsNameValue istio.mixer.adapter.model.v1beta1.DNSName (oneof)

Used for values of type DNSName

uriValue istio.mixer.adapter.model.v1beta1.Uri (oneof)

Used for values of type Uri