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Monitoring, Logging and Tracing Installation

Knative Serving offers two different monitoring setups: One that uses Elasticsearch, Kibana, Prometheus and Grafana and another that uses Stackdriver, Prometheus and Grafana. See below for installation instructions for these two setups. You can install only one of these two setups and side-by-side installation of these two are not supported.

Elasticsearch, Kibana, Prometheus & Grafana Setup

If you installed Knative Serving using Easy Install guide, skip this step and continue to Create Elasticsearch Indices

Run:

kubectl apply -R -f config/monitoring/100-common \
    -f config/monitoring/150-elasticsearch \
    -f third_party/config/monitoring/common \
    -f third_party/config/monitoring/elasticsearch \
    -f config/monitoring/200-common \
    -f config/monitoring/200-common/100-istio.yaml

Monitor logging & monitoring components, until all of the components report Running or Completed:

kubectl get pods -n monitoring --watch

CTRL+C when it's done.

Create Elasticsearch Indices

We will create two indexes in ElasticSearch - one for application logs and one for request traces. To create the indexes, open Kibana Index Management UI at this link (it might take a couple of minutes for the proxy to work the first time after the installation).

Within the "Configure an index pattern" page, enter logstash-* to Index pattern and select @timestamp from Time Filter field name and click on Create button. See below for a screenshot:

Create logstash-* index

To create the second index, select Create Index Pattern button on top left of the page. Enter zipkin* to Index pattern and select timestamp_millis from Time Filter field name and click on Create button.

Next, visit instructions below to access to logs, metrics and traces:

Stackdriver(logs), Prometheus & Grafana Setup

If your Knative Serving is not built on a GCP based cluster or you want to send logs to another GCP project, you need to build your own Fluentd image and modify the configuration first. See

  1. Fluentd image on Knative Serving
  2. Setting up a logging plugin
kubectl apply -R -f config/monitoring/100-common \
    -f config/monitoring/150-stackdriver \
    -f third_party/config/monitoring/common \
    -f config/monitoring/200-common \
    -f config/monitoring/200-common/100-istio.yaml

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License.