Log

Formatter for logrus, allowing log entries to be recognized by the fluentd Stackdriver agent on Google Cloud Platform.

Example:

package main
import (
"time""net/http"
log "github.com/sirupsen/logrus"
joonix "github.com/joonix/log"
)
funcmain() {
log.SetFormatter(joonix.NewFormatter())
log.Info("hello world!")
// log a HTTP request in your handlerlog.WithField("httpRequest", &joonix.HTTPRequest{
Request: r,
Status: http.StatusOK,
ResponseSize: 31337,
Latency: 123*time.Millisecond,
}).Info("additional info")
}

Alternatives

• https://github.com/TV4/logrus-stackdriver-formatter (seems abandoned)
• https://github.com/knq/sdhook (implemented as a hook, doesn't require fluentd)
• #2 (you can map the format yourself)

Kubernetes logging from outside of GCP

It is possible to run the google edition of fluentd a.k.a. stackdriver agent outside of GCP, just a bit tricky to configure. See following references for more info:

• Fluentd build: https://github.com/GoogleCloudPlatform/k8s-stackdriver/tree/master/fluentd-gcp-image
• Manifest examples: https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/fluentd-gcp
• Manifest vars (fluentd_gcp_yaml_version): https://github.com/kubernetes/kubernetes/blob/master/cluster/gce/config-default.sh
• Tutorial (old manifest): https://kubernetes.io/docs/tasks/debug-application-cluster/logging-stackdriver/