categraf: A Go repository from JalanJiang

Categraf

Categraf is one-stop telemetry collector for nightingale / prometheus / m3db / victoriametrics / thanos / influxdb / tdengine.

Build

# export GO111MODULE=on
# export GOPROXY=https://goproxy.cn
go build

Pack

tar zcvf categraf.tar.gz categraf conf

for mac user, use gnu-tar instead

use system tar tool will cause err F! failed to init config: failed to load configs of dir: ./conf err:toml: line 1: files cannot contain NULL bytes; probably using UTF-16; TOML files must be UTF-8

brew install gnu-tar
gtar zcvf categraf.tar.gz categraf conf

Run

# test mode: just print metrics to stdout
./categraf --test

# test system and mem plugins
./categraf --test --inputs system:mem

# print usage message
./categraf --help

# run
./categraf

# run with specified config directory
./categraf --configs /path/to/conf-directory

# only enable system and mem plugins
./categraf --inputs system:mem

# use nohup to start categraf
nohup ./categraf &> stdout.log &

Deploy categraf as daemonset, deployment or sidecar

edit k8s/daemonset.yaml, replace NSERVER_SERVICE_WITH_PORT with service ip:port of nserver in your cluster, replace CATEGRAF_NAMESPACE with namespace value, then run:

kubectl apply -n monitoring -f k8s/daemonset.yaml # collect metrics, metrics/cadvisor of node
kubectl apply -n monitoring -f k8s/sidecar.yaml # collect service metrics
kubectl apply -n monitoring -f k8s/deployment.yaml #collect apiserver coredns etc

Notice: k8s/sidecar.yaml is a demo, replace mock with your own image of service.

Scrape like prometheus

see detail here

Plugin

plugin list and document: https://github.com/flashcatcloud/categraf/tree/main/inputs

Thanks

Categraf is developed on the basis of Telegraf, Exporters and the OpenTelemetry. Thanks to the great open source community.

JalanJiang/categraf