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kubernetes-events.md

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description
Collects Kubernetes Events

Kubernetes Events

Kubernetes exports it events through the API server. This input plugin allows to retrieve those events as logs and get them processed through the pipeline.

Configuration

Note: Starting with Fluent Bit 3.1, the Kubernetes Events plugin uses a Kubernetes watch stream instead of polling. Previous versions use the interval parameters for reconnecting the Kubernetes watch stream.

Key Description Default
db Set a database file to keep track of recorded Kubernetes events
db.sync Set a database sync method. values: extra, full, normal and off normal
interval_sec Set the reconnect interval (seconds)* 0
interval_nsec Set the reconnect interval (sub seconds: nanoseconds)* 500000000
kube_url API Server end-point https://kubernetes.default.svc
kube_ca_file Kubernetes TLS CA file /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
kube_ca_path Kubernetes TLS ca path
kube_token_file Kubernetes authorization token file. /var/run/secrets/kubernetes.io/serviceaccount/token
kube_token_ttl kubernetes token ttl, until it is reread from the token file. 10m
kube_request_limit kubernetes limit parameter for events query, no limit applied when set to 0. 0
kube_retention_time Kubernetes retention time for events. 1h
kube_namespace Kubernetes namespace to query events from. Gets events from all namespaces by default
tls.debug Debug level between 0 (nothing) and 4 (every detail). 0
tls.verify Enable or disable verification of TLS peer certificate. On
tls.vhost Set optional TLS virtual host.

Threading

This input always runs in its own thread.

Getting Started

Kubernetes Service Account

The Kubernetes service account used by Fluent Bit must have get, list, and watch permissions to namespaces and pods for the namespaces watched in the kube_namespace configuration parameter. If you're using the helm chart to configure Fluent Bit, this role is included.

Simple Configuration File

In the following configuration file, the input plugin kubernetes_events collects events every 5 seconds (default for interval_nsec) and exposes them through the standard output plugin on the console.

[SERVICE]
    flush           1
    log_level       info

[INPUT]
    name            kubernetes_events
    tag             k8s_events
    kube_url        https://kubernetes.default.svc

[OUTPUT]
    name            stdout
    match           *

Event Timestamp

Event timestamps are created from the first existing field, based on the following order of precedence:

  1. lastTimestamp
  2. firstTimestamp
  3. metadata.creationTimestamp