rancher-prometheus-config

A prometheus confd setup that automatically extracts all metrics of containers using labels. No configuration needed.

Just launch a new Stack in rancher.

Build

docker build -t marcbachmann/rancher-prometheus-config:1.0.3 .

Usage

1. Run container as sidekick in rancher
2. Mount volumes of sidekick into prometheus server

docker run -d --name prometheus-config marcbachmann/rancher-prometheus-config
docker run -d --volumes-from prometheus-config --name prometheus prom/prometheus -config.file=/etc/prometheus/prometheus.yml

Add a prometheus exporter to the config

This is quite easy, you can add new exporters based on labels on services, just configure it using the labels. All the labels are optional.

• prometheus.port, based on that we enable the exporter

• prometheus.job_name, optional

• prometheus.metrics_path

• prometheus.scrape_interval

• prometheus.scrape_timeout

• prometheus.label.foo, to add a label foo to all metrics of that exporter

• prometheus.metric_relabel_pattern, only supports cadvisor and node and blackbox. cadvisor adds container_id, service_stack, service_name, instance (host_ip) labels to it's metrics based on the rancher labels.

  node adds instance (host ip), host_labels_*, host_name labels to all metrics

What to do

• Improve the relabeling of the node exporter. Add host labels onto node_last_seen or node_boot_time events