Goal

Monitor resource used by running containers

TODO

• Get informations about percent used CPU, percent used RAM memory and network
• Add options to get information from all containers and not only using id container
• Create DockerService package
• Write tests for package
• Create zabbix module
• Create python package, to install with pip

Requirements

install all libraries (docker-py and py-zabbix)

# pip install -r requirements.txt

install libraries separately

docker-py library

# pip install docker-py

or

# git clone [email protected]:docker/docker-py.git
# cd docker-py
# python setup.py install

py-zabbix library

# pip install py-zabbix

or

# git clone [email protected]:blacked/py-zabbix.git
# cd py-zabbix
# python setup.py install

Debian problem to use pip

To fix this problem

ImportError: cannot import name 'IncompleteRead'

Reinstall pip package

easy_install -U pip

Packages used

• python 2.7.9
• docker 1.6
• zabbix agent and server 2.4

Initial Configuration

Docker host server

# apt-get install zabbix-agent sudo
# git clone [email protected]:Gomex/docker-zabbix.git
# cd docker-docker
# cp *.py /etc/zabbix
# chown -R zabbix /etc/zabbix/
# chmod u+x /etc/zabbix/*.py
# echo 'Defaults:username !requiretty' >> /etc/sudoers
# echo "zabbix ALL=NOPASSWD: /etc/zabbix/docker_stats.py" >> /etc/sudoers
# echo "EnableRemoteCommands=1" >> /etc/zabbix/zabbix_agentd.conf
# echo "Timeout=30" >> /etc/zabbix/zabbix_agentd.conf
# /etc/init.d/zabbix-agent restart

Zabbix server

1. Import that template
2. Create a host to your Docker host server and link the template "Template Docker Host"
3. Wait the containers :P

If you don't have a zabbix server to test

# docker pull berngp/docker-zabbix
# docker run --name zabbix-server -d -P berngp/docker-zabbix

Check which port was mapped to tcp/80

# docker ps | grep "docker-zabbix"

Check which ip was mapped to new zabbix server container and put in your zabbix-agent conf file

# docker inspect zabbix-server | grep -i ipaddress

Using python3

To use python 3 is necessary install pip for python3

# aptitude install python3-pip

And install its requiriments

# pip3 install -r requirements.txt

Debian problem to use pip

To fix this problem

ImportError: cannot import name 'IncompleteRead'

Reinstall pip package

easy_install3 -U pip

Inspiration

I decided create this solution after read that news and used part of code to start my own.