Collecting host and container metrics using CAdvisor and Collectd .
Status: docker registry
Collect metrics from host system, running containers, and processes exposing metrics running in containers.
Send metrics to multiple external (from host) systems simultaneously.
Run in a container, not on the host system.
Low adoption friction -- Collectd is already in-place as the solution for metrics collection and transport [where I work].
Flexibility, Collectd
Offers large number of plugins to support collection of metrics.
Various options for creating custom metrics collectors.
Offers a large number of plugins to send metrics to various external systems.
Collectd's native transport is supported by many such systems.
CAdvisor
Collectd has no inherent capability to inspect the host system [from a container] nor other containers.
Exposes host system and container metrics via an API which can be easily leveraged.
Offers near real-time visibility into a running system, if exposed, providing a powerful interactive troubleshooting tool.
It is a more complex solution, with complexity comes fragility.
CAdvisor adds additional load to a system.
As alternatives surface they will be investigated from the perspective of simplifying the overall solution and reducing load on the host system.
Leverage Collectd's wealth of plugins
Leveage CAdvisor's ability to see the Host as well as the Containers
Runs in a separate container (not as a 1st class process on the Host)
Has built-in metrics collectors for:
Easy to use...which is, of course, relative and subjective :)
Basic metric name manipulation for metric continuity
Refer to the repository wiki for complete documentation on all of the configuration options, as well as, more details on using the cadvisor-collectd container. For a quick start, see the examples directory for turnkey demonstrations using CSV, InfluxDB, or Graphite.
add mesos metrics collection plugin for Collectd
refactor cadvisor and mesos -- provide both command line and plugin capabilities
add service filter modes to cadvisor
group options
mounts
sockets
docker scopes
user slice
system slice
other slices
service options
all
include -- implicit exclusion, explicit inclusion
exclude -- implicit inclusion, explicit exclusion
rewirte and reorganize documentation
introduction
configuring collectd
configuring cadvisor plugin
configuring mesos plugin
add quick start to README
add quickstart demo examples
ansible playbook
cadvisor service
cadvisor-collectd service
configure collectd
configure cadvisor plugin
configure mesos plugin
options for metric source (for docker containers)
configuration sources