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# -*- coding: utf-8 -*-
# Description: docker netdata python.d module
# Author: Kévin Darcel (@tuxity)
try:
import docker
HAS_DOCKER = True
except ImportError:
HAS_DOCKER = False
from distutils.version import StrictVersion
from bases.FrameworkServices.SimpleService import SimpleService
# charts order (can be overridden if you want less charts, or different order)
ORDER = [
'running_containers',
'healthy_containers',
'unhealthy_containers'
]
CHARTS = {
'running_containers': {
'options': [None, 'Number of running containers', 'containers', 'running containers',
'docker.running_containers', 'line'],
'lines': [
['running_containers', 'running']
]
},
'healthy_containers': {
'options': [None, 'Number of healthy containers', 'containers', 'healthy containers',
'docker.healthy_containers', 'line'],
'lines': [
['healthy_containers', 'healthy']
]
},
'unhealthy_containers': {
'options': [None, 'Number of unhealthy containers', 'containers', 'unhealthy containers',
'docker.unhealthy_containers', 'line'],
'lines': [
['unhealthy_containers', 'unhealthy']
]
}
}
MIN_REQUIRED_VERSION = '3.2.0'
class Service(SimpleService):
def __init__(self, configuration=None, name=None):
SimpleService.__init__(self, configuration=configuration, name=name)
self.order = ORDER
self.definitions = CHARTS
self.client = None
def check(self):
if not HAS_DOCKER:
self.error("'docker' package is needed to use dockerd module")
return False
if StrictVersion(docker.__version__) < StrictVersion(MIN_REQUIRED_VERSION):
self.error("installed 'docker' package version {0}, minimum required version {1}, please upgrade".format(
docker.__version__,
MIN_REQUIRED_VERSION,
))
return False
self.client = docker.DockerClient(base_url=self.configuration.get('url', 'unix://var/run/docker.sock'))
try:
self.client.ping()
except docker.errors.APIError as error:
self.error(error)
return False
return True
def get_data(self):
data = dict()
data['running_containers'] = len(self.client.containers.list(sparse=True))
data['healthy_containers'] = len(self.client.containers.list(filters={'health': 'healthy'}, sparse=True))
data['unhealthy_containers'] = len(self.client.containers.list(filters={'health': 'unhealthy'}, sparse=True))
return data or None
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