collectd

Monitor group: grafana & graphite & collectd, collectd is member of group. Basic collectd-based server monitoring. Sends stats to Graphite.

With inspiration from pboos/docker-collectd-graphite. But not using python to replace the settings.

Collectd metrics

• CPU used/free/idle/etc
• Free disk (via mounting hosts '/' into container, eg: -v /:/hostfs:ro)
• Disk performance
• Load average
• Memory used/free/etc
• Uptime
• Network interface
• Swap

Environment variables

• HOSTNAME
  • Will be sent to Graphite
  • Required
• GRAPHITE_HOST
  • Graphite IP or hostname
  • Required
• GRAPHITE_PORT
  • Graphite port
  • Optional, defaults to 2003
• GRAPHITE_PREFIX
  • Graphite prefix
  • Optional, defaults to collectd.
• REPORT_BY_CPU
  • Report per-CPU metrics if true, global sum of CPU metrics if false (details: collectd.conf man page)
  • Optional, defaults to false.
• INTERVAL
  • Controls how often registered read functions are called and with that the resolution of the collected data. (details: collectd.conf man page)
  • Optional, defaults to 10.

Example execution

run command, replace HOSTNAME GRAPHITE_HOST correct with your server.

#!/bin/bash
#
# Created by William Guozi
#

# 获取镜像地址
DOCKER_IMAGE="${1:-williamguozi/collectd:latest}"

# 判断容器是否存在，并将其删除
docker pull $DOCKER_IMAGE && \
docker ps -a | awk -F' ' '{print $NF}' | grep "devops-collectd" && \
docker stop devops-collectd && \
docker rm -f "devops-collectd" || \
echo "Image $image_url pull failed or No container devops-collectd."

# 启动容器
docker run -d \
 --cpus 1 \
 -m 1G \
 -e HOSTNAME=servername \
 -e GRAPHITE_PREFIX=collectd \
 -e GRAPHITE_PORT=2003 \
 -e GRAPHITE_HOST=locahost \
 -e REPORT_BY_CPU=false \
 -e INTERVAL=10 \
 --privileged \
 --restart always \
 -v /:/hostfs:ro \
 --name devops-collectd \
 $DOCKER_IMAGE

or run command, use your customize config file

#!/bin/bash
#
# Created by William Guozi
#

# 获取镜像地址
DOCKER_IMAGE="${1:-williamguozi/collectd:latest}"

# 判断容器是否存在，并将其删除
docker pull $DOCKER_IMAGE && \
docker ps -a | awk -F' ' '{print $NF}' | grep "devops-collectd" && \
docker stop devops-collectd && \
docker rm -f "devops-collectd" || \
echo "Image $image_url pull failed or No container devops-collectd."

# 启动容器

docker run -d \
 --cpus 1 \
 -m 1G \
 --privileged \
 --restart always \
 -v /:/hostfs:ro \
 -v /opt/devops-collectd/collectd.conf:/etc/collectd/collectd.conf \
 --name devops-collectd \
 $DOCKER_IMAGE