diff --git a/check_docker/.codeclimate.yml b/check_docker/.codeclimate.yml
new file mode 100644
index 0000000..189a543
--- /dev/null
+++ b/check_docker/.codeclimate.yml
@@ -0,0 +1,13 @@
+languages:
+ Ruby: true
+ JavaScript: true
+ PHP: true
+ Python: true
+exclude_paths:
+- "check_docker/tests/*"
+- "tests/*"
+plugins:
+ radon:
+ enabled: true
+ sonar-python:
+ enabled: true
\ No newline at end of file
diff --git a/check_docker/.coveragerc b/check_docker/.coveragerc
new file mode 100644
index 0000000..b3e5c70
--- /dev/null
+++ b/check_docker/.coveragerc
@@ -0,0 +1,6 @@
+[run]
+include =
+ check_docker/check_*.py
+omit =
+ tests/*
+ */__init__.py
diff --git a/check_docker/.dockerignore b/check_docker/.dockerignore
new file mode 100644
index 0000000..ba46dcd
--- /dev/null
+++ b/check_docker/.dockerignore
@@ -0,0 +1,4 @@
+# Created by .ignore support plugin (hsz.mobi)
+*
+!testing_tools
+!dev_requirements.txt
\ No newline at end of file
diff --git a/check_docker/.travis.yml b/check_docker/.travis.yml
new file mode 100644
index 0000000..c13df5f
--- /dev/null
+++ b/check_docker/.travis.yml
@@ -0,0 +1,14 @@
+language: python
+python:
+ - "3.5"
+ - "3.6"
+ - "3.7"
+ - "3.8"
+install:
+ - pip install pipenv
+ - pipenv install
+ - pipenv install codeclimate-test-reporter
+# command to run tests
+script:
+ - py.test --cov=check_docker
+ - codeclimate-test-reporter || echo "Ignoring Code Climate reporter upload failure"
diff --git a/check_docker/DEVLOPEMENT.md b/check_docker/DEVLOPEMENT.md
new file mode 100644
index 0000000..bef13a2
--- /dev/null
+++ b/check_docker/DEVLOPEMENT.md
@@ -0,0 +1,48 @@
+# Development environment setup
+
+You should have the following installed
+
+- docker
+- python (version >= 3.0)
+- pipenv
+- vagrant
+
+Initialize your pipenv
+
+ pipenv install --skip-lock
+
+# Running the tests
+
+## Normal tests
+tox and Pytest is used for testing. You can can run test by running the following from
+the root of the project
+
+ tox
+
+## Isolated tests
+Sometimes test cases can interact with Docker on the development machine making
+it hard to determine the cause of a test success or failure. To address this
+you can use the `run_isolated_tests.sh` script to run pytest inside a
+environment isolated from any network. Additionally this isolated test will
+run the unit tests on multiple versions of python so you can validate your
+changes are not python version specific.
+
+ ./run_isolated_tests.sh
+
+## Package tests
+These test verify that, after created, the package can be installed and
+runs successfully(not just passes unit tests). To do this a test environment is set up in vagrant.
+
+ ./run_package_tests.sh
+
+# Coverage report
+The aim is to keep coverage above 90% on the actual checks
+(check_docker.py and check_swarm.py). To generate a coverage report.
+
+ pipenv run py.test --cov=check_docker/
+
+# Tips
+When jumping back and forth between normal and isolated tests the `__pycache__`
+directories can fall out fo sync with your execution environment. When this
+happens you see errors like `ImportError: No module named 'check_docker'. The
+fix is simple, just remove all the `__pycache__` directories in the project.
\ No newline at end of file
diff --git a/check_docker/LICENSE b/check_docker/LICENSE
new file mode 100644
index 0000000..bc08fe2
--- /dev/null
+++ b/check_docker/LICENSE
@@ -0,0 +1,619 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
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+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
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+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
diff --git a/check_docker/Pipfile b/check_docker/Pipfile
new file mode 100644
index 0000000..98780b4
--- /dev/null
+++ b/check_docker/Pipfile
@@ -0,0 +1,17 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[packages]
+tox = '*'
+tox-pyenv = '*'
+pytest = '*'
+pytest-random-order = '*'
+coverage = '>4.0,<4.4'
+pyfakefs = '*'
+pytest-cov = '<2.6'
+poetry = "*"
+
+[requires]
+python_version = "3.8"
diff --git a/check_docker/README.rst b/check_docker/README.rst
new file mode 100644
index 0000000..89d6873
--- /dev/null
+++ b/check_docker/README.rst
@@ -0,0 +1,168 @@
+|Build Status| |Code Climate| |Test Coverage| |Downloads|
+
+
+============
+check_docker
+============
+
+Nagios/NRPE compatible plugins for checking docker based services. Currently there are two nagios checks
+
+- **check_docker** which checks docker container health
+- **check_swarm** which checks health of swarm nodes and services
+
+With **check_docker** can use it to check and alert on
+
+- memory consumption in absolute units (bytes, kb, mb, gb) and as a percentage (0-100%)
+ of the container limit.
+- CPU usages as a percentage (0-100%) of container limit.
+- automatic restarts performed by the docker daemon
+- container status, i.e. is it running?
+- container health checks are passing?
+- uptime, i.e. is it able to stay running for a long enough time?
+- the presence of a container or containers matching specified names
+- image version, does the running image match that in the remote registry?
+- image age, when was the image built the last time?
+
+With **check_swarm** you can alert
+
+- if a node is not joined to a docker swarm
+- if a service is running in a swarm
+
+These checks can communicate with a local docker daemon socket file (default) or with local
+or remote docker daemons using secure and non-secure TCP connections.
+
+These plugins require python 3. It is tested on 3.5 and greater but may work on older
+versions of 3.
+
+Installation
+-----------------
+
+With pip
+::
+
+ pip3 install check_docker
+ --or--
+ pip install check_docker
+
+With curl
+::
+
+ curl -o /usr/local/bin/check_docker https://raw.githubusercontent.com/timdaman/check_docker/master/check_docker/check_docker.py
+ curl -o /usr/local/bin/check_swarm https://raw.githubusercontent.com/timdaman/check_docker/master/check_docker/check_swarm.py
+ chmod a+rx /usr/local/bin/check_docker /usr/local/bin/check_swarm
+
+With wget
+::
+
+ wget -O /usr/local/bin/check_docker https://raw.githubusercontent.com/timdaman/check_docker/master/check_docker/check_docker.py
+ wget -O /usr/local/bin/check_swarm https://raw.githubusercontent.com/timdaman/check_docker/master/check_docker/check_swarm.py
+ chmod a+rx /usr/local/bin/check_docker /usr/local/bin/check_swarm
+
+
+check_docker Usage
+------------------
+
+::
+
+ usage: check_docker.py [-h]
+ [--connection [//docker.socket|:]
+ | --secure-connection [:]]
+ [--binary_units | --decimal_units] [--timeout TIMEOUT]
+ [--containers CONTAINERS [CONTAINERS ...]] [--present]
+ [--threads THREADS] [--cpu WARN:CRIT]
+ [--memory WARN:CRIT:UNITS] [--status STATUS] [--health]
+ [--uptime WARN:CRIT] [--image-age WARN:CRIT] [--version]
+ [--insecure-registries INSECURE_REGISTRIES [INSECURE_REGISTRIES ...]]
+ [--restarts WARN:CRIT] [--no-ok] [--no-performance] [-V]
+
+ Check docker containers.
+
+ optional arguments:
+ -h, --help show this help message and exit
+ --connection [//docker.socket|:]
+ Where to find docker daemon socket. (default:
+ /var/run/docker.sock)
+ --secure-connection [:]
+ Where to find TLS protected docker daemon socket.
+ --binary_units Use a base of 1024 when doing calculations of KB, MB,
+ GB, & TB (This is default)
+ --decimal_units Use a base of 1000 when doing calculations of KB, MB,
+ GB, & TB
+ --timeout TIMEOUT Connection timeout in seconds. (default: 10.0)
+ --containers CONTAINERS [CONTAINERS ...]
+ One or more RegEx that match the names of the
+ container(s) to check. If omitted all containers are
+ checked. (default: ['all'])
+ --present Modifies --containers so that each RegEx must match at
+ least one container.
+ --threads THREADS This + 1 is the maximum number of concurent
+ threads/network connections. (default: 10)
+ --cpu WARN:CRIT Check cpu usage percentage taking into account any
+ limits. Valid values are 0 - 100.
+ --memory WARN:CRIT:UNITS
+ Check memory usage taking into account any limits.
+ Valid values for units are %,B,KB,MB,GB.
+ --status STATUS Desired container status (running, exited, etc).
+ --health Check container's health check status
+ --uptime WARN:CRIT Minimum container uptime in seconds. Use when
+ infrequent crashes are tolerated.
+ --image-age WARN:CRIT Maximum image age in days.
+ --version Check if the running images are the same version as
+ those in the registry. Useful for finding stale
+ images. Does not support login.
+ --insecure-registries INSECURE_REGISTRIES [INSECURE_REGISTRIES ...]
+ List of registries to connect to with http(no TLS).
+ Useful when using "--version" with images from
+ insecure registries.
+ --restarts WARN:CRIT Container restart thresholds.
+ --no-ok Make output terse suppressing OK messages. If all
+ checks are OK return a single OK.
+ --no-performance Suppress performance data. Reduces output when
+ performance data is not being used.
+ -V show program's version number and exit
+
+
+check_swarm Usage
+-----------------
+
+::
+
+ usage: check_swarm.py [-h]
+ [--connection [//docker.socket|:]
+ | --secure-connection [:]]
+ [--timeout TIMEOUT]
+ (--swarm | --service SERVICE [SERVICE ...] | --ignore_paused)
+ [-V]
+
+ Check docker swarm.
+
+ optional arguments:
+ -h, --help show this help message and exit
+ --connection [//docker.socket|:]
+ Where to find docker daemon socket. (default:
+ /var/run/docker.sock)
+ --secure-connection [:]
+ Where to find TLS protected docker daemon socket.
+ --timeout TIMEOUT Connection timeout in seconds. (default: 10.0)
+ --swarm Check swarm status
+ --service SERVICE [SERVICE ...]
+ One or more RegEx that match the names of the
+ services(s) to check.
+ --ignore_paused Don't require global services to be running on paused nodes
+ -V show program's version number and exit
+
+Gotchas
+-------
+
+- When using check_docker with older versions of docker (I have seen 1.4 and 1.5) –status only supports ‘running’, ‘restarting’, and ‘paused’.
+- When using check_docker, if no container is specified, all containers are checked. Some containers may return critcal status if the selected check(s) require a running container.
+- When using check_docker, --present cannot be used without --containers to indicate what to check the presence of.
+
+.. |Build Status| image:: https://travis-ci.org/timdaman/check_docker.svg?branch=master
+ :target: https://travis-ci.org/timdaman/check_docker
+.. |Code Climate| image:: https://codeclimate.com/github/timdaman/check_docker/badges/gpa.svg
+ :target: https://codeclimate.com/github/timdaman/check_docker
+.. |Test Coverage| image:: https://codeclimate.com/github/timdaman/check_docker/badges/coverage.svg
+ :target: https://codeclimate.com/github/timdaman/check_docker/coverage
+.. |Downloads| image:: http://pepy.tech/badge/check-docker
+ :target: http://pepy.tech/count/check-docker
diff --git a/check_docker/check_docker/__init__.py b/check_docker/check_docker/__init__.py
new file mode 100644
index 0000000..58ac6b8
--- /dev/null
+++ b/check_docker/check_docker/__init__.py
@@ -0,0 +1,2 @@
+"""Nagios/NRPE compatible plugins for checking docker based services"""
+__version__ = "2.2.2"
\ No newline at end of file
diff --git a/check_docker/check_docker/check_docker.py b/check_docker/check_docker/check_docker.py
new file mode 100755
index 0000000..8789146
--- /dev/null
+++ b/check_docker/check_docker/check_docker.py
@@ -0,0 +1,999 @@
+#!/usr/bin/env python3
+# logging.basicConfig(level=logging.DEBUG)
+import argparse
+import json
+import logging
+import math
+import os
+import re
+import socket
+import stat
+import traceback
+from collections import deque, namedtuple, UserDict, defaultdict
+from concurrent import futures
+from datetime import datetime, timezone
+from functools import lru_cache
+from http.client import HTTPConnection
+from sys import argv
+from urllib import request
+from urllib.error import HTTPError, URLError
+from urllib.request import AbstractHTTPHandler, HTTPHandler, HTTPSHandler, OpenerDirector, HTTPRedirectHandler, \
+ Request, HTTPBasicAuthHandler
+
+logger = logging.getLogger()
+__author__ = 'Tim Laurence'
+__copyright__ = "Copyright 2019"
+__credits__ = ['Tim Laurence']
+__license__ = "GPL"
+__version__ = "2.2.2"
+
+'''
+nrpe compatible check for docker containers.
+
+Requires Python 3
+
+Note: I really would have preferred to have used requests for all the network connections but that would have added a
+dependency.
+'''
+
+DEFAULT_SOCKET = '/var/run/docker.sock'
+DEFAULT_TIMEOUT = 10.0
+DEFAULT_PORT = 2375
+DEFAULT_MEMORY_UNITS = 'B'
+DEFAULT_HEADERS = [('Accept', 'application/vnd.docker.distribution.manifest.v2+json')]
+DEFAULT_PUBLIC_REGISTRY = 'registry-1.docker.io'
+
+# The second value is the power to raise the base to.
+UNIT_ADJUSTMENTS_TEMPLATE = {
+ '%': 0,
+ 'B': 0,
+ 'KB': 1,
+ 'MB': 2,
+ 'GB': 3,
+ 'TB': 4
+}
+unit_adjustments = None
+
+# Reduce message to a single OK unless a checks fail.
+no_ok = False
+
+# Suppress performance data reporting
+no_performance = False
+
+OK_RC = 0
+WARNING_RC = 1
+CRITICAL_RC = 2
+UNKNOWN_RC = 3
+
+# These hold the final results
+rc = -1
+messages = []
+performance_data = []
+
+ImageName = namedtuple('ImageName', "registry name tag full_name")
+
+
+class ThresholdSpec(UserDict):
+ def __init__(self, warn, crit, units=''):
+ super().__init__(warn=warn, crit=crit, units=units)
+
+ def __getattr__(self, item):
+ if item in ('warn', 'crit', 'units'):
+ return self.data[item]
+ return super().__getattr__(item)
+
+
+# How much threading can we do? We are generally not CPU bound so I am using this a worse case cap
+DEFAULT_PARALLELISM = 10
+
+# Holds list of all threads
+threads = []
+
+# This is used during testing
+DISABLE_THREADING = False
+
+
+# Hacked up urllib to handle sockets
+#############################################################################################
+# Docker runs a http connection over a socket. http.client is knows how to deal with these
+# but lacks some niceties. Urllib wraps that and makes up for some of the deficiencies but
+# cannot fix the fact http.client can't read from socket files. In order to take advantage of
+# urllib and http.client's capabilities the class below tweaks HttpConnection and passes it
+# to urllib registering for socket:// connections
+
+# This is all side effect so excluding coverage
+class SocketFileHandler(AbstractHTTPHandler):
+ class SocketFileToHttpConnectionAdaptor(HTTPConnection): # pragma: no cover
+ def __init__(self, socket_file, timeout=DEFAULT_TIMEOUT):
+ super().__init__(host='', port=0, timeout=timeout)
+ self.socket_file = socket_file
+
+ def connect(self):
+ self.sock = socket.socket(family=socket.AF_UNIX, type=socket.SOCK_STREAM, proto=0, fileno=None)
+ self.sock.settimeout(self.timeout)
+ self.sock.connect(self.socket_file)
+
+ def socket_open(self, req):
+ socket_file, path = req.selector.split(':', 1)
+ req.host = socket_file
+ req.selector = path
+ return self.do_open(self.SocketFileToHttpConnectionAdaptor, req)
+
+
+# Tokens are not cached because I expect the callers to cache the responses
+class Oauth2TokenAuthHandler(HTTPBasicAuthHandler):
+ auth_failure_tracker = defaultdict(int)
+
+ def http_response(self, request, response):
+ code, hdrs = response.code, response.headers
+
+ www_authenticate_header = response.headers.get('www-authenticate', None)
+ if code == 401 and www_authenticate_header:
+ scheme = www_authenticate_header.split()[0]
+ if scheme.lower() == 'bearer':
+ return self.process_oauth2(request, response, www_authenticate_header)
+
+ return response
+
+ https_response = http_response
+
+ @staticmethod
+ def _get_outh2_token(www_authenticate_header):
+ auth_fields = dict(re.findall(r"""(?:(?P[^ ,=]+)="([^"]+)")""", www_authenticate_header))
+
+ auth_url = "{realm}?scope={scope}&service={service}".format(
+ realm=auth_fields['realm'],
+ scope=auth_fields['scope'],
+ service=auth_fields['service'],
+ )
+ token_request = Request(auth_url)
+ token_request.add_header("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
+ token_response = request.urlopen(token_request)
+ return process_urllib_response(token_response)['token']
+
+ def process_oauth2(self, request, response, www_authenticate_header):
+
+ # This keeps infinite auth loops from happening
+ full_url = request.full_url
+ self.auth_failure_tracker[full_url] += 1
+ if self.auth_failure_tracker[full_url] > 1:
+ raise HTTPError(full_url, 401, "Stopping Oauth2 failure loop for {}".format(full_url),
+ response.headers, response)
+
+ auth_token = self._get_outh2_token(www_authenticate_header)
+
+ request.add_unredirected_header('Authorization', 'Bearer ' + auth_token)
+ return self.parent.open(request, timeout=request.timeout)
+
+
+better_urllib_get = OpenerDirector()
+better_urllib_get.addheaders = DEFAULT_HEADERS.copy()
+better_urllib_get.add_handler(HTTPHandler())
+better_urllib_get.add_handler(HTTPSHandler())
+better_urllib_get.add_handler(HTTPRedirectHandler())
+better_urllib_get.add_handler(SocketFileHandler())
+better_urllib_get.add_handler(Oauth2TokenAuthHandler())
+
+
+class RegistryError(Exception):
+ def __init__(self, response):
+ self.response_obj = response
+
+
+# Util functions
+#############################################################################################
+def parse_thresholds(spec, include_units=True, units_required=True):
+ """
+ Given a spec string break it up into ':' separated chunks. Convert strings to ints as it makes sense
+
+ :param spec: The threshold specification being parsed
+ :param include_units: Specifies that units should be processed and returned if present
+ :param units_required: Mark spec as invalid if the units are missing.
+ :return: A list containing the thresholds in order of warn, crit, and units(if included and present)
+ """
+ parts = deque(spec.split(':'))
+ if not all(parts):
+ raise ValueError("Blanks are not allowed in a threshold specification: {}".format(spec))
+
+ # Warn
+ warn = int(parts.popleft())
+ # Crit
+ crit = int(parts.popleft())
+
+ units = ''
+ if include_units:
+ if len(parts):
+ # units
+ units = parts.popleft()
+ elif units_required:
+ raise ValueError("Missing units in {}".format(spec))
+
+ if len(parts) != 0:
+ raise ValueError("Too many threshold specifiers in {}".format(spec))
+
+ return ThresholdSpec(warn=warn, crit=crit, units=units)
+
+
+def pretty_time(seconds):
+ remainder = seconds
+ result = []
+ if remainder > 24 * 60 * 60:
+ days, remainder = divmod(remainder, 24 * 60 * 60)
+ result.append("{}d".format(int(days)))
+ if remainder > 60 * 60:
+ hours, remainder = divmod(remainder, 60 * 60)
+ result.append("{}h".format(int(hours)))
+ if remainder > 60:
+ minutes, remainder = divmod(remainder, 60)
+ result.append("{}min".format(int(minutes)))
+ result.append("{}s".format(int(remainder)))
+ return result
+
+
+def evaluate_numeric_thresholds(container, value, thresholds, name, short_name,
+ min=None, max=None, greater_than=True):
+ rounder = lambda x: round(x, 2)
+
+ INTEGER_UNITS = ['B', '%', '']
+
+ # Some units don't have decimal places
+ rounded_value = int(value) if thresholds.units in INTEGER_UNITS else rounder(value)
+
+ perf_string = "{container}_{short_name}={value}{units};{warn};{crit}".format(
+ container=container,
+ short_name=short_name,
+ value=rounded_value,
+ **thresholds)
+ if min is not None:
+ rounded_min = math.floor(min) if thresholds.units in INTEGER_UNITS else rounder(min)
+ perf_string += ';{}'.format(rounded_min)
+ if max is not None:
+ rounded_max = math.ceil(max) if thresholds.units in INTEGER_UNITS else rounder(max)
+ perf_string += ';{}'.format(rounded_max)
+
+ global performance_data
+ performance_data.append(perf_string)
+
+ if thresholds.units == 's':
+ nice_time = ' '.join(pretty_time(rounded_value)[:2])
+ results_str = "{} {} is {}".format(container, name, nice_time)
+ else:
+ results_str = "{} {} is {}{}".format(container, name, rounded_value, thresholds.units)
+
+ if greater_than:
+ comparator = lambda value, threshold: value >= threshold
+ else:
+ comparator = lambda value, threshold: value <= threshold
+
+ if comparator(value, thresholds.crit):
+ critical(results_str)
+ elif comparator(value, thresholds.warn):
+ warning(results_str)
+ else:
+ ok(results_str)
+
+
+@lru_cache(maxsize=None)
+def get_url(url):
+ logger.debug("get_url: {}".format(url))
+ response = better_urllib_get.open(url, timeout=timeout)
+ logger.debug("get_url: {} {}".format(url, response.status))
+ return process_urllib_response(response), response.status
+
+
+def process_urllib_response(response):
+ response_bytes = response.read()
+ body = response_bytes.decode('utf-8')
+ # logger.debug("BODY: {}".format(body))
+ return json.loads(body)
+
+
+def get_container_info(name):
+ content, _ = get_url(daemon + '/containers/{container}/json'.format(container=name))
+ return content
+
+
+def get_image_info(name):
+ content, _ = get_url(daemon + '/images/{image}/json'.format(image=name))
+ return content
+
+
+def get_state(container):
+ return get_container_info(container)['State']
+
+
+def get_stats(container):
+ content, _ = get_url(daemon + '/containers/{container}/stats?stream=0'.format(container=container))
+ return content
+
+
+def get_ps_name(name_list):
+ # Pick the name that starts with a '/' but doesn't contain a '/' and return that value
+ for name in name_list:
+ if '/' not in name[1:] and name[0] == '/':
+ return name[1:]
+ else:
+ raise NameError("Error when trying to identify 'ps' name in {}".format(name_list))
+
+
+def get_containers(names, require_present):
+ containers_list, _ = get_url(daemon + '/containers/json?all=1')
+
+ all_container_names = set(get_ps_name(x['Names']) for x in containers_list)
+
+ if 'all' in names:
+ return all_container_names
+
+ filtered = set()
+ for matcher in names:
+ found = False
+ for candidate in all_container_names:
+ if re.match("^{}$".format(matcher), candidate):
+ filtered.add(candidate)
+ found = True
+ # If we don't find a container that matches out regex
+ if require_present and not found:
+ critical("No containers match {}".format(matcher))
+
+ return filtered
+
+
+def get_container_image_id(container):
+ # find registry and tag
+ inspection = get_container_info(container)
+ return inspection['Image']
+
+
+def get_container_image_urls(container):
+ inspection = get_container_info(container)
+ image_id = inspection['Image']
+ image_info = get_image_info(image_id)
+ return image_info['RepoTags']
+
+
+def normalize_image_name_to_manifest_url(image_name, insecure_registries):
+ parsed_url = parse_image_name(image_name)
+
+ lower_insecure = [reg.lower() for reg in insecure_registries]
+
+ # Registry query url
+ scheme = 'http' if parsed_url.registry.lower() in lower_insecure else 'https'
+ url = '{scheme}://{registry}/v2/{image_name}/manifests/{image_tag}'.format(scheme=scheme,
+ registry=parsed_url.registry,
+ image_name=parsed_url.name,
+ image_tag=parsed_url.tag)
+ return url, parsed_url.registry
+
+
+# Auth servers seem picky about being hit too hard. Can't figure out why. ;)
+# As result it is best to single thread this check
+# This is based on https://docs.docker.com/registry/spec/auth/token/#requesting-a-token
+def get_digest_from_registry(url):
+ logger.debug("get_digest_from_registry")
+ # query registry
+ # TODO: Handle logging in if needed
+ registry_info, status_code = get_url(url=url)
+
+ if status_code != 200:
+ raise RegistryError(response=registry_info)
+ return registry_info['config'].get('digest', None)
+
+
+def set_rc(new_rc):
+ global rc
+ rc = new_rc if new_rc > rc else rc
+
+
+def ok(message):
+ set_rc(OK_RC)
+ messages.append('OK: ' + message)
+
+
+def warning(message):
+ set_rc(WARNING_RC)
+ messages.append('WARNING: ' + message)
+
+
+def critical(message):
+ set_rc(CRITICAL_RC)
+ messages.append('CRITICAL: ' + message)
+
+
+def unknown(message):
+ set_rc(UNKNOWN_RC)
+ messages.append('UNKNOWN: ' + message)
+
+
+def require_running(name):
+ def inner_decorator(func):
+ def wrapper(container, *args, **kwargs):
+ container_state = get_state(container)
+ state = normalize_state(container_state)
+ if state.lower() == "running":
+ func(container, *args, **kwargs)
+ else:
+ # container is not running, can't perform check
+ critical('{container} is not "running", cannot check {check}"'.format(container=container,
+ check=name))
+
+ return wrapper
+
+ return inner_decorator
+
+
+def multithread_execution(disable_threading=DISABLE_THREADING):
+ def inner_decorator(func):
+ def wrapper(container, *args, **kwargs):
+ if DISABLE_THREADING:
+ func(container, *args, **kwargs)
+ else:
+ threads.append(parallel_executor.submit(func, container, *args, **kwargs))
+
+ return wrapper
+
+ return inner_decorator
+
+
+def singlethread_execution(disable_threading=DISABLE_THREADING):
+ def inner_decorator(func):
+ def wrapper(container, *args, **kwargs):
+ if DISABLE_THREADING:
+ func(container, *args, **kwargs)
+ else:
+ threads.append(serial_executor.submit(func, container, *args, **kwargs))
+
+ return wrapper
+
+ return inner_decorator
+
+
+def parse_image_name(image_name):
+ """
+ Parses image names into their constituent parts.
+ :param image_name:
+ :return: ImageName
+ """
+
+ # These are based on information found here
+ # https://docs.docker.com/engine/reference/commandline/tag/#extended-description
+ # https://github.com/docker/distribution/blob/master/reference/regexp.go
+ host_segment_re = '[a-zA-Z0-9]([a-zA-Z0-9-]*[a-zA-Z0-9])?'
+ hostname_re = r'({host_segment}\.)+{host_segment}'.format(host_segment=host_segment_re)
+ registry_re = r'((?P({hostname_re}(:\d+)?|{host_segment_re}:\d+))/)'.format(
+ host_segment_re=host_segment_re, hostname_re=hostname_re)
+ name_component_ends_re = '[a-z0-9]'
+ name_component_middle_re = '[a-z0-9._-]' # Ignoring spec limit of two _
+ name_component_re = '({end}{middle}*{end}|{end})'.format(end=name_component_ends_re,
+ middle=name_component_middle_re)
+ image_name_re = "(?P({name_component}/)*{name_component})".format(name_component=name_component_re)
+ image_tag_re = '(?P[a-zA-Z0-9_][a-zA-Z0-9_.-]*)'
+ full_re = '^{registry}?{image_name}(:{image_tag})?$'.format(registry=registry_re, image_name=image_name_re,
+ image_tag=image_tag_re)
+ parsed = re.match(full_re, image_name)
+
+ registry = parsed.group('registry') if parsed.group('registry') else DEFAULT_PUBLIC_REGISTRY
+
+ image_name = parsed.group('image_name')
+ image_name = image_name if '/' in image_name or registry != DEFAULT_PUBLIC_REGISTRY else 'library/' + image_name
+
+ image_tag = parsed.group('image_tag')
+ image_tag = image_tag if image_tag else 'latest'
+
+ full_image_name = "{registry}/{image_name}:{image_tag}".format(
+ registry=registry,
+ image_name=image_name,
+ image_tag=image_tag)
+
+ return ImageName(registry=registry, name=image_name, tag=image_tag, full_name=full_image_name)
+
+
+def normalize_state(status_info):
+ # Ugh, docker used to report state in as silly way then they figured out how to do it better.
+ # This tries the simpler new way and if that doesn't work fails back to the old way
+
+ # On new docker engines the status holds whatever the current state is, running, stopped, paused, etc.
+ if "Status" in status_info:
+ return status_info['Status']
+
+ status = 'Exited'
+ if status_info["Restarting"]:
+ status = 'Restarting'
+ elif status_info["Paused"]:
+ status = 'Paused'
+ elif status_info["Dead"]:
+ status = 'Dead'
+ elif status_info["Running"]:
+ return "Running"
+ return status
+
+
+# Checks
+#############################################################################################
+
+@multithread_execution()
+@require_running(name='memory')
+def check_memory(container, thresholds):
+ if not thresholds.units in unit_adjustments:
+ unknown("Memory units must be one of {}".format(list(unit_adjustments.keys())))
+ return
+
+ inspection = get_stats(container)
+
+ # Subtracting cache to match what `docker stats` does.
+ adjusted_usage = inspection['memory_stats']['usage'] - inspection['memory_stats']['stats']['total_cache']
+ if thresholds.units == '%':
+ max = 100
+ usage = int(100 * adjusted_usage / inspection['memory_stats']['limit'])
+ else:
+ max = inspection['memory_stats']['limit'] / unit_adjustments[thresholds.units]
+ usage = adjusted_usage / unit_adjustments[thresholds.units]
+
+ evaluate_numeric_thresholds(container=container, value=usage, thresholds=thresholds, name='memory',
+ short_name='mem', min=0, max=max)
+
+
+@multithread_execution()
+def check_status(container, desired_state):
+ normized_desired_state = desired_state.lower()
+ normalized_state = normalize_state(get_state(container)).lower()
+ if normized_desired_state != normalized_state:
+ critical("{} state is not {}".format(container, desired_state))
+ return
+ ok("{} status is {}".format(container, desired_state))
+
+
+@multithread_execution()
+@require_running('health')
+def check_health(container):
+ state = get_state(container)
+ if "Health" in state and "Status" in state["Health"]:
+ health = state["Health"]["Status"]
+ message = "{} is {}".format(container, health)
+ if health == 'healthy':
+ ok(message)
+ elif health == 'unhealthy':
+ critical(message)
+ else:
+ unknown(message)
+ else:
+ unknown('{} has no health check data'.format(container))
+
+
+@multithread_execution()
+@require_running('uptime')
+def check_uptime(container, thresholds):
+ inspection = get_container_info(container)['State']['StartedAt']
+ only_secs = inspection[0:19]
+ start = datetime.strptime(only_secs, "%Y-%m-%dT%H:%M:%S")
+ start = start.replace(tzinfo=timezone.utc)
+ now = datetime.now(timezone.utc)
+ uptime = (now - start).total_seconds()
+
+ graph_padding = 2
+ thresholds.units = 's'
+ evaluate_numeric_thresholds(container=container, value=uptime, thresholds=thresholds, name='uptime',
+ short_name='up', min=0, max=graph_padding, greater_than=False)
+
+
+@multithread_execution()
+def check_image_age(container, thresholds):
+ container_image = get_container_info(container)['Image']
+ image_created = get_image_info(container_image)['Created']
+ only_secs = image_created[0:19]
+ start = datetime.strptime(only_secs, "%Y-%m-%dT%H:%M:%S")
+ start = start.replace(tzinfo=timezone.utc)
+ now = datetime.now(timezone.utc)
+ image_age = (now - start).days
+
+ graph_padding = 2
+ thresholds.units = 'd'
+ evaluate_numeric_thresholds(container=container, value=image_age, thresholds=thresholds, name='image_age',
+ short_name='age', min=0, max=graph_padding, greater_than=True)
+
+
+@multithread_execution()
+@require_running('restarts')
+def check_restarts(container, thresholds):
+ inspection = get_container_info(container)
+
+ restarts = int(inspection['RestartCount'])
+ graph_padding = 2
+ evaluate_numeric_thresholds(container=container, value=restarts, thresholds=thresholds, name='restarts',
+ short_name='re', min=0, max=graph_padding)
+
+
+@singlethread_execution()
+def check_version(container, insecure_registries):
+ image_id = get_container_image_id(container)
+ logger.debug("Local container image ID: {}".format(image_id))
+ if image_id is None:
+ unknown('Checksum missing for "{}", try doing a pull'.format(container))
+ return
+
+ image_urls = get_container_image_urls(container=container)
+ if len(image_urls) > 1:
+ unknown('"{}" has multiple tags/names. Unsure which one to use to check the version.'.format(container))
+ return
+ elif len(image_urls) == 0:
+ unknown('"{}" has last no repository tag. Is this anywhere else?'.format(container))
+ return
+
+ url, registry = normalize_image_name_to_manifest_url(image_urls[0], insecure_registries)
+ logger.debug("Looking up image digest here {}".format(url))
+ try:
+ registry_hash = get_digest_from_registry(url)
+ except URLError as e:
+ if hasattr(e.reason, 'reason') and e.reason.reason == 'UNKNOWN_PROTOCOL':
+ unknown(
+ "TLS error connecting to registry {} for {}, should you use the '--insecure-registry' flag?" \
+ .format(registry, container))
+ return
+ elif hasattr(e.reason, 'strerror') and e.reason.strerror == 'nodename nor servname provided, or not known':
+ unknown(
+ "Cannot reach registry for {} at {}".format(container, url))
+ return
+ else:
+ raise e
+ except RegistryError as e:
+ unknown("Cannot check version, couldn't retrieve digest for {} while checking {}.".format(container, url))
+ return
+ logger.debug("Image digests, local={} remote={}".format(image_id, registry_hash))
+ if registry_hash == image_id:
+ ok("{}'s version matches registry".format(container))
+ return
+ critical("{}'s version does not match registry".format(container))
+
+
+def calculate_cpu_capacity_precentage(info, stats):
+ host_config = info['HostConfig']
+
+ if 'online_cpus' in stats['cpu_stats']:
+ num_cpus = stats['cpu_stats']['online_cpus']
+ else:
+ num_cpus = len(stats['cpu_stats']['cpu_usage']['percpu_usage'])
+
+ # Identify limit system being used
+ # --cpus
+ if 'NanoCpus' in host_config and host_config['NanoCpus'] != 0:
+ period = 1000000000
+ quota = host_config['NanoCpus']
+ # --cpu-quota
+ elif 'CpuQuota' in host_config and host_config['CpuQuota'] != 0:
+ period = 100000 if host_config['CpuPeriod'] == 0 else host_config['CpuPeriod']
+ quota = host_config['CpuQuota']
+ # unlimited
+ else:
+ period = 1
+ quota = num_cpus
+
+ if period * num_cpus < quota:
+ # This handles the case where the quota is actually bigger than amount available by all the cpus.
+ available_limit_ratio = 1
+ else:
+ available_limit_ratio = (period * num_cpus) / quota
+
+ cpu_delta = stats['cpu_stats']['cpu_usage']['total_usage'] - stats['precpu_stats']['cpu_usage']['total_usage']
+ system_delta = stats['cpu_stats']['system_cpu_usage'] - stats['precpu_stats']['system_cpu_usage']
+ usage = (cpu_delta / system_delta) * available_limit_ratio
+ usage = round(usage * 100, 0)
+ return usage
+
+
+@multithread_execution()
+@require_running('cpu')
+def check_cpu(container, thresholds):
+ info = get_container_info(container)
+
+ stats = get_stats(container=container)
+
+ usage = calculate_cpu_capacity_precentage(info=info, stats=stats)
+
+ max = 100
+ thresholds.units = '%'
+ evaluate_numeric_thresholds(container=container, value=usage, thresholds=thresholds, name='cpu', short_name='cpu',
+ min=0, max=max)
+
+
+def process_args(args):
+ parser = argparse.ArgumentParser(description='Check docker containers.')
+
+ # Connect to local socket or ip address
+ connection_group = parser.add_mutually_exclusive_group()
+ connection_group.add_argument('--connection',
+ dest='connection',
+ action='store',
+ default=DEFAULT_SOCKET,
+ type=str,
+ metavar='[//docker.socket|:]',
+ help='Where to find docker daemon socket. (default: %(default)s)')
+
+ connection_group.add_argument('--secure-connection',
+ dest='secure_connection',
+ action='store',
+ type=str,
+ metavar='[:]',
+ help='Where to find TLS protected docker daemon socket.')
+
+ base_group = parser.add_mutually_exclusive_group()
+ base_group.add_argument('--binary_units',
+ dest='units_base',
+ action='store_const',
+ const=1024,
+ help='Use a base of 1024 when doing calculations of KB, MB, GB, & TB (This is default)')
+
+ base_group.add_argument('--decimal_units',
+ dest='units_base',
+ action='store_const',
+ const=1000,
+ help='Use a base of 1000 when doing calculations of KB, MB, GB, & TB')
+ parser.set_defaults(units_base=1024)
+
+ # Connection timeout
+ parser.add_argument('--timeout',
+ dest='timeout',
+ action='store',
+ type=float,
+ default=DEFAULT_TIMEOUT,
+ help='Connection timeout in seconds. (default: %(default)s)')
+
+ # Container name
+ parser.add_argument('--containers',
+ dest='containers',
+ action='store',
+ nargs='+',
+ type=str,
+ default=['all'],
+ help='One or more RegEx that match the names of the container(s) to check. If omitted all containers are checked. (default: %(default)s)')
+
+ # Container name
+ parser.add_argument('--present',
+ dest='present',
+ default=False,
+ action='store_true',
+ help='Modifies --containers so that each RegEx must match at least one container.')
+
+ # Threads
+ parser.add_argument('--threads',
+ dest='threads',
+ default=DEFAULT_PARALLELISM,
+ action='store',
+ type=int,
+ help='This + 1 is the maximum number of concurent threads/network connections. (default: %(default)s)')
+
+ # CPU
+ parser.add_argument('--cpu',
+ dest='cpu',
+ action='store',
+ type=str,
+ metavar='WARN:CRIT',
+ help='Check cpu usage percentage taking into account any limits.')
+
+ # Memory
+ parser.add_argument('--memory',
+ dest='memory',
+ action='store',
+ type=str,
+ metavar='WARN:CRIT:UNITS',
+ help='Check memory usage taking into account any limits. Valid values for units are %%,B,KB,MB,GB.')
+
+ # State
+ parser.add_argument('--status',
+ dest='status',
+ action='store',
+ type=str,
+ help='Desired container status (running, exited, etc).')
+
+ # Health
+ parser.add_argument('--health',
+ dest='health',
+ default=None,
+ action='store_true',
+ help="Check container's health check status")
+
+ # Age
+ parser.add_argument('--uptime',
+ dest='uptime',
+ action='store',
+ type=str,
+ metavar='WARN:CRIT',
+ help='Minimum container uptime in seconds. Use when infrequent crashes are tolerated.')
+
+ # Image Age
+ parser.add_argument('--image-age',
+ dest='image_age',
+ action='store',
+ type=str,
+ metavar='WARN:CRIT',
+ help='Maximum image age in days.')
+
+ # Version
+ parser.add_argument('--version',
+ dest='version',
+ default=None,
+ action='store_true',
+ help='Check if the running images are the same version as those in the registry. Useful for finding stale images. Does not support login.')
+
+ # Version
+ parser.add_argument('--insecure-registries',
+ dest='insecure_registries',
+ action='store',
+ nargs='+',
+ type=str,
+ default=[],
+ help='List of registries to connect to with http(no TLS). Useful when using "--version" with images from insecure registries.')
+
+ # Restart
+ parser.add_argument('--restarts',
+ dest='restarts',
+ action='store',
+ type=str,
+ metavar='WARN:CRIT',
+ help='Container restart thresholds.')
+
+ # no-ok
+ parser.add_argument('--no-ok',
+ dest='no_ok',
+ action='store_true',
+ help='Make output terse suppressing OK messages. If all checks are OK return a single OK.')
+
+ # no-performance
+ parser.add_argument('--no-performance',
+ dest='no_performance',
+ action='store_true',
+ help='Suppress performance data. Reduces output when performance data is not being used.')
+
+ parser.add_argument('-V', action='version', version='%(prog)s {}'.format(__version__))
+
+ if len(args) == 0:
+ parser.print_help()
+
+ parsed_args = parser.parse_args(args=args)
+
+ global timeout
+ timeout = parsed_args.timeout
+
+ global daemon
+ global connection_type
+ if parsed_args.secure_connection:
+ daemon = 'https://' + parsed_args.secure_connection
+ connection_type = 'https'
+ elif parsed_args.connection:
+ if parsed_args.connection[0] == '/':
+ daemon = 'socket://' + parsed_args.connection + ':'
+ connection_type = 'socket'
+ else:
+ daemon = 'http://' + parsed_args.connection
+ connection_type = 'http'
+
+ return parsed_args
+
+
+def no_checks_present(parsed_args):
+ # Look for all functions whose name starts with 'check_'
+ checks = [key[6:] for key in globals().keys() if key.startswith('check_')]
+ # Act like --present is a check though it is not implemented like one
+ return all(getattr(parsed_args, check) is None for check in checks) and not parsed_args.present
+
+
+def socketfile_permissions_failure(parsed_args):
+ if connection_type == 'socket':
+ return not (os.path.exists(parsed_args.connection)
+ and stat.S_ISSOCK(os.stat(parsed_args.connection).st_mode)
+ and os.access(parsed_args.connection, os.R_OK)
+ and os.access(parsed_args.connection, os.W_OK))
+ else:
+ return False
+
+
+def print_results():
+ if no_ok:
+ # Remove all the "OK"s
+ filtered_messages = [message for message in messages if not message.startswith('OK: ')]
+ if len(filtered_messages) == 0:
+ messages_concat = 'OK'
+ else:
+ messages_concat = '; '.join(filtered_messages)
+
+ else:
+ messages_concat = '; '.join(messages)
+
+ if no_performance or len(performance_data) == 0:
+ print(messages_concat)
+ else:
+ perfdata_concat = ' '.join(performance_data)
+ print(messages_concat + '|' + perfdata_concat)
+
+
+def perform_checks(raw_args):
+ args = process_args(raw_args)
+
+ global parallel_executor
+ parallel_executor = futures.ThreadPoolExecutor(max_workers=args.threads)
+ global serial_executor
+ serial_executor = futures.ThreadPoolExecutor(max_workers=1)
+
+ global unit_adjustments
+ unit_adjustments = {key: args.units_base ** value for key, value in UNIT_ADJUSTMENTS_TEMPLATE.items()}
+
+ global no_ok
+ no_ok = args.no_ok
+
+ global no_performance
+ no_performance = args.no_ok
+
+ if socketfile_permissions_failure(args):
+ unknown("Cannot access docker socket file. User ID={}, socket file={}".format(os.getuid(), args.connection))
+ return
+
+ if args.containers == ["all"] and args.present:
+ unknown("You can not use --present without --containers")
+ return
+
+ if no_checks_present(args):
+ unknown("No checks specified.")
+ return
+
+ # Here is where all the work happens
+ #############################################################################################
+ try:
+ containers = get_containers(args.containers, args.present)
+ except ConnectionRefusedError:
+ critical('Failed to connect to daemon: connection refused.')
+
+ if len(containers) == 0 and not args.present:
+ unknown("No containers names found matching criteria")
+ return
+
+ for container in containers:
+
+ # Check status
+ if args.status:
+ check_status(container, args.status)
+
+ # Check version
+ if args.version:
+ check_version(container, args.insecure_registries)
+
+ # below are checks that require a 'running' status
+
+ # Check status
+ if args.health:
+ check_health(container)
+
+ # Check cpu usage
+ if args.cpu:
+ check_cpu(container, parse_thresholds(args.cpu, units_required=False))
+
+ # Check memory usage
+ if args.memory:
+ check_memory(container, parse_thresholds(args.memory, units_required=False))
+
+ # Check uptime
+ if args.uptime:
+ check_uptime(container, parse_thresholds(args.uptime, include_units=False))
+
+ # Check image age
+ if args.image_age:
+ check_image_age(container, parse_thresholds(args.image_age, include_units=False))
+
+ # Check restart count
+ if args.restarts:
+ check_restarts(container, parse_thresholds(args.restarts, include_units=False))
+
+
+def main():
+ try:
+ perform_checks(argv[1:])
+
+ # get results to let exceptions in threads bubble out
+ [x.result() for x in futures.as_completed(threads)]
+
+ except Exception as e:
+ traceback.print_exc()
+ unknown("Exception raised during check': {}".format(repr(e)))
+ print_results()
+ exit(rc)
+
+
+if __name__ == '__main__':
+ main()
diff --git a/check_docker/check_docker/check_swarm.py b/check_docker/check_docker/check_swarm.py
new file mode 100755
index 0000000..8db694b
--- /dev/null
+++ b/check_docker/check_docker/check_swarm.py
@@ -0,0 +1,362 @@
+#!/usr/bin/env python3
+import argparse
+import json
+import logging
+import os
+import re
+import socket
+import stat
+import traceback
+from functools import lru_cache
+from http.client import HTTPConnection
+from sys import argv
+from urllib.request import AbstractHTTPHandler, HTTPHandler, HTTPSHandler, OpenerDirector
+
+logger = logging.getLogger()
+__author__ = 'Tim Laurence'
+__copyright__ = "Copyright 2019"
+__credits__ = ['Tim Laurence']
+__license__ = "GPL"
+__version__ = "2.2.2"
+
+'''
+nrpe compatible check for docker swarm
+
+Requires Python 3
+
+Note: I really would have preferred to have used requests for all the network connections but that would have added a
+dependency.
+'''
+
+DEFAULT_SOCKET = '/var/run/docker.sock'
+DEFAULT_TIMEOUT = 10.0
+DEFAULT_PORT = 2375
+DEFAULT_HEADERS = [('Accept', 'application/vnd.docker.distribution.manifest.v2+json')]
+OK_RC = 0
+WARNING_RC = 1
+CRITICAL_RC = 2
+UNKNOWN_RC = 3
+
+HTTP_GOOD_CODES = range(200, 299)
+
+# These hold the final results
+rc = -1
+messages = []
+
+
+# Hacked up urllib to handle sockets
+#############################################################################################
+# Docker runs a http connection over a socket. http.client is knows how to deal with these
+# but lacks some niceties. Urllib wraps that and makes up for some of the deficiencies but
+# cannot fix the fact http.client can't read from socket files. In order to take advantage of
+# urllib and http.client's capabilities the class below tweaks HttpConnection and passes it
+# to urllib registering for socket:// connections
+
+# This is all side effect so excluding coverage
+class SocketFileHandler(AbstractHTTPHandler): # pragma: no cover
+ class SocketFileToHttpConnectionAdaptor(HTTPConnection):
+ def __init__(self, socket_file, timeout=DEFAULT_TIMEOUT):
+ super().__init__(host='', port=0, timeout=timeout)
+ self.socket_file = socket_file
+
+ def connect(self):
+ self.sock = socket.socket(family=socket.AF_UNIX, type=socket.SOCK_STREAM, proto=0, fileno=None)
+ self.sock.settimeout(self.timeout)
+ self.sock.connect(self.socket_file)
+
+ def socket_open(self, req):
+ socket_file, path = req.selector.split(':', 1)
+ req.host = socket_file
+ req.selector = path
+ return self.do_open(self.SocketFileToHttpConnectionAdaptor, req)
+
+
+better_urllib_get = OpenerDirector()
+better_urllib_get.addheaders = DEFAULT_HEADERS.copy()
+better_urllib_get.add_handler(HTTPHandler())
+better_urllib_get.add_handler(HTTPSHandler())
+better_urllib_get.add_handler(SocketFileHandler())
+
+
+# Util functions
+#############################################################################################
+
+
+@lru_cache()
+def get_url(url):
+ response = better_urllib_get.open(url, timeout=timeout)
+ return process_urllib_response(response), response.status
+
+
+def process_urllib_response(response):
+ response_bytes = response.read()
+ body = response_bytes.decode('utf-8')
+ logger.debug(body)
+ return json.loads(body)
+
+
+def get_swarm_status():
+ content, status = get_url(daemon + '/swarm')
+ return status
+
+
+def get_service_info(name):
+ return get_url(daemon + '/services/{service}'.format(service=name))
+
+
+def get_service_tasks(name):
+ tasks, status = get_url(daemon + '/tasks?filters={{"name":{{"{service}":true}}}}'.format(service=name))
+ return tasks
+
+
+def get_nodes():
+ return get_url(daemon + '/nodes')
+
+
+def get_services(names):
+ services_list, status = get_url(daemon + '/services')
+ if status == 406:
+ critical("Error checking service status, node is not in swarm mode")
+ return []
+ elif status not in HTTP_GOOD_CODES:
+ unknown("Could not retrieve service info")
+ return []
+
+ all_services_names = set(x['Spec']['Name'] for x in services_list)
+ if 'all' in names:
+ return all_services_names
+
+ filtered = set()
+ not_found = []
+ for matcher in names:
+ found = False
+ for candidate in all_services_names:
+ if re.match("^{}$".format(matcher), candidate):
+ filtered.add(candidate)
+ found = True
+ # If we don't find a service that matches out regex
+ if not found:
+ not_found.append(matcher)
+ if len(not_found) > 0:
+ critical("No services match {}".format(','.join(not_found)))
+ return filtered
+
+
+def set_rc(new_rc):
+ global rc
+ rc = new_rc if new_rc > rc else rc
+
+
+def ok(message):
+ set_rc(OK_RC)
+ messages.append('OK: ' + message)
+
+
+def warning(message):
+ set_rc(WARNING_RC)
+ messages.append('WARNING: ' + message)
+
+
+def critical(message):
+ set_rc(CRITICAL_RC)
+ messages.append('CRITICAL: ' + message)
+
+
+def unknown(message):
+ set_rc(UNKNOWN_RC)
+ messages.append('UNKNOWN: ' + message)
+
+
+# Checks
+#############################################################################################
+def check_swarm():
+ status = get_swarm_status()
+ process_url_status(status, ok_msg='Node is in a swarm',
+ critical_msg='Node is not in a swarm', unknown_msg='Error accessing swarm info')
+
+
+def process_global_service(name, ignore_paused=False):
+ bad_node_states = {'drain'}
+ if ignore_paused:
+ bad_node_states.add('paused')
+
+ # Get all the nodes we care about based on their state
+ node_list, status = get_nodes()
+ node_index = set()
+ for node in node_list:
+ if node['Spec']['Availability'] in bad_node_states:
+ continue
+ node_index.add(node['ID'])
+
+ # If a task is on a targeted node confirm it is running
+ # Services that are not running are considered bad. This is to prevent services in crash loops from being ignored
+ # Also note, this ignores conditions where services state they are running on a node not in the index.
+ service_tasks = get_service_tasks(name)
+ for task in service_tasks:
+ if task['Status']['State'] != 'running':
+ critical('Global service {service} has one or more tasks not running'.format(service=name))
+ return
+ node_index.discard(task['NodeID'])
+
+ if len(node_index) > 0:
+ critical('Global service {service} has {count} tasks not running'.format(service=name, count=len(node_list)))
+
+ ok('Global service {service} OK'.format(service=name))
+
+
+def process_replicated_service(name, replicas_desired):
+ # Services that are not running are considered bad. This is to prevent services in crash loops from being ignored
+ all_tasks = get_service_tasks(name)
+ running_tasks = [task for task in all_tasks if task['Status']['State'] == 'running']
+ num_tasks = len(running_tasks)
+ if num_tasks != replicas_desired:
+ critical('Replicated service {service} has {num_tasks} tasks, {replicas_desired} desired'.
+ format(service=name, num_tasks=num_tasks, replicas_desired=replicas_desired))
+ else:
+ ok('Replicated service {service} OK'.format(service=name))
+
+
+def check_service(name, ignore_paused=False):
+ # get service mode
+ service_info, status = get_service_info(name)
+ mode_info = service_info['Spec']['Mode']
+
+ # if global ensure one per node
+ if 'Global' in mode_info:
+ process_global_service(name=name, ignore_paused=ignore_paused)
+ # if replicated ensure sufficient number of replicas
+ elif 'Replicated' in mode_info:
+ process_replicated_service(name=name, replicas_desired=mode_info['Replicated']['Replicas'])
+
+
+def process_url_status(status, ok_msg=None, critical_msg=None, unknown_msg=None):
+ if status in HTTP_GOOD_CODES:
+ return ok(ok_msg)
+ elif status in [503, 404, 406]:
+ return critical(critical_msg)
+ else:
+ return unknown(unknown_msg)
+
+
+def process_args(args):
+ parser = argparse.ArgumentParser(description='Check docker swarm.')
+
+ # Connect to local socket or ip address
+ connection_group = parser.add_mutually_exclusive_group()
+ connection_group.add_argument('--connection',
+ dest='connection',
+ action='store',
+ default=DEFAULT_SOCKET,
+ type=str,
+ metavar='[//docker.socket|:]',
+ help='Where to find docker daemon socket. (default: %(default)s)')
+
+ connection_group.add_argument('--secure-connection',
+ dest='secure_connection',
+ action='store',
+ type=str,
+ metavar='[:]',
+ help='Where to find TLS protected docker daemon socket.')
+
+ # Connection timeout
+ parser.add_argument('--timeout',
+ dest='timeout',
+ action='store',
+ type=float,
+ default=DEFAULT_TIMEOUT,
+ help='Connection timeout in seconds. (default: %(default)s)')
+
+ swarm_group = parser.add_mutually_exclusive_group(required=True)
+
+ # Swarm
+ swarm_group.add_argument('--swarm',
+ dest='swarm',
+ default=None,
+ action='store_true',
+ help='Check swarm status')
+
+ # Service
+ swarm_group.add_argument('--service',
+ dest='service',
+ action='store',
+ type=str,
+ nargs='+',
+ default=[],
+ help='One or more RegEx that match the names of the services(s) to check.')
+
+ swarm_group.add_argument('--ignore_paused',
+ dest='ignore_paused',
+ action='store_true',
+ help="Don't require global services to be running on paused nodes")
+
+ parser.add_argument('-V', action='version', version='%(prog)s {}'.format(__version__))
+
+ if len(args) == 0:
+ parser.print_help()
+
+ parsed_args = parser.parse_args(args=args)
+
+ global timeout
+ timeout = parsed_args.timeout
+
+ global daemon
+ global connection_type
+ if parsed_args.secure_connection:
+ daemon = 'https://' + parsed_args.secure_connection
+ connection_type = 'https'
+ elif parsed_args.connection:
+ if parsed_args.connection[0] == '/':
+ daemon = 'socket://' + parsed_args.connection + ':'
+ connection_type = 'socket'
+ else:
+ daemon = 'http://' + parsed_args.connection
+ connection_type = 'http'
+
+ return parsed_args
+
+
+def socketfile_permissions_failure(parsed_args):
+ if connection_type == 'socket':
+ return not (os.path.exists(parsed_args.connection)
+ and stat.S_ISSOCK(os.stat(parsed_args.connection).st_mode)
+ and os.access(parsed_args.connection, os.R_OK)
+ and os.access(parsed_args.connection, os.W_OK))
+ else:
+ return False
+
+
+def print_results():
+ print('; '.join(messages))
+
+
+def perform_checks(raw_args):
+ args = process_args(raw_args)
+ if socketfile_permissions_failure(args):
+ unknown("Cannot access docker socket file. User ID={}, socket file={}".format(os.getuid(), args.connection))
+ else:
+ # Here is where all the work happens
+ #############################################################################################
+ try:
+ if args.swarm:
+ check_swarm()
+ elif args.service:
+ services = get_services(args.service)
+
+ # Status is set to critical by get_services() if nothing is found for a name
+ for service in services:
+ check_service(name=service, ignore_paused=args.ignore_paused)
+
+ except Exception as e:
+ traceback.print_exc()
+ unknown("Exception raised during check: {}".format(repr(e)))
+
+ print_results()
+
+
+def main():
+ perform_checks(argv[1:])
+ exit(rc)
+
+
+if __name__ == '__main__':
+ main()
diff --git a/check_docker/pyproject.toml b/check_docker/pyproject.toml
new file mode 100644
index 0000000..fe1bcc2
--- /dev/null
+++ b/check_docker/pyproject.toml
@@ -0,0 +1,33 @@
+[build-system]
+requires = ["poetry"]
+build-backend = "poetry.masonry.api"
+
+[tool.poetry]
+name = "check_docker"
+version = "2.2.2"
+description = "Nagios/NRPE compatible plugins for checking Docker based services"
+license = "GPL-3.0"
+authors = ["Tim Laurence "]
+readme = "README.rst"
+homepage = "https://github.com/timdaman/check_docker"
+repository = "https://github.com/timdaman/check_docker"
+
+classifiers=[
+ "Programming Language :: Python",
+ "Programming Language :: Python :: 3",
+ "Intended Audience :: System Administrators",
+ "Environment :: Other Environment",
+ "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+ "Operating System :: OS Independent",
+ "Topic :: System :: Networking",
+]
+packages = [
+ { include = "check_docker" },
+]
+
+[tool.poetry.scripts]
+check_docker = "check_docker.check_docker:main"
+check_swarm = "check_docker.check_swarm:main"
+
+
+
diff --git a/check_docker/release_process.md b/check_docker/release_process.md
new file mode 100644
index 0000000..51c7ebf
--- /dev/null
+++ b/check_docker/release_process.md
@@ -0,0 +1,42 @@
+
+1. Confirm documentation is updated
+ - README
+ - DEV doc
+1. Unit tests pass
+1. Isolated tests pass
+
+ ./run_isolated_tests.sh
+
+1. make package
+
+ pipenv run poetry build
+
+1. Uninstall check_docker and install package
+
+ pipenv uninstall check_docker && pipenv run pip install dist/check_docker-X.X.X-py2.py3-none-any.whl
+
+1. Bats smoke tests pass
+
+ ./run_package_tests.sh
+
+1. Push to branch
+1. Confirm doc looks good on github
+1. Travis tests pass
+1. Create and merge PR
+1. Confirm Travis still passes
+1. CodeClimate does not show scary issues (need to modify analyzed branch)
+1. Upload package to test repo
+
+ poetry publish -r pypi -u timdaman -p xxxx
+
+1. Check test project page for formatting
+
+ https://test.pypi.org/project/check_docker/
+
+1. Upload package to prod repo
+
+ poetry publish -r prodpypi -u timdaman -p xxxx
+
+1. Check project page for formatting
+
+ https://pypi.org/project/check_docker/
diff --git a/check_docker/run_isolated_tests.sh b/check_docker/run_isolated_tests.sh
new file mode 100755
index 0000000..6642993
--- /dev/null
+++ b/check_docker/run_isolated_tests.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -eu
+
+(cd testing_tools && docker build -t check_docker_tests .)
+
+docker run --rm -v $PWD:$PWD -w $PWD -ti check_docker_tests tox
\ No newline at end of file
diff --git a/check_docker/run_package_tests.sh b/check_docker/run_package_tests.sh
new file mode 100755
index 0000000..10b280f
--- /dev/null
+++ b/check_docker/run_package_tests.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+set -eux
+
+cd testing_tools/vagrant
+vagrant up
+vagrant ssh -c "bats -p /check_docker/testing_tools/vagrant"
+vagrant suspend
diff --git a/check_docker/testing_tools/Dockerfile b/check_docker/testing_tools/Dockerfile
new file mode 100644
index 0000000..a1c4dd7
--- /dev/null
+++ b/check_docker/testing_tools/Dockerfile
@@ -0,0 +1,33 @@
+FROM ubuntu:20.04 AS build
+ENV DEBIAN_FRONTEND=noninteractive
+
+ENV PYENV_ROOT="/pyenv"
+ENV PATH="$PYENV_ROOT/bin:$PATH"
+WORKDIR /
+RUN apt update
+RUN apt install --no-install-recommends --fix-missing -y build-essential make locales libssl1.1 libssl-dev \
+ libffi-dev libbz2-dev libreadline-dev libsqlite3-dev libjpeg-dev zlib1g-dev libxml2-dev libxslt1-dev \
+ curl ca-certificates
+RUN curl -kL https://github.com/pyenv/pyenv/archive/master.tar.gz | tar -xz \
+ && mv pyenv-master /pyenv
+RUN echo 3.5.6 3.6.7 3.7.1 | xargs -n 1 -P $(nproc) pyenv install
+RUN /pyenv/versions/3.7.1/bin/pip3.7 install setuptools wheel flit tox
+
+FROM ubuntu:20.04
+ENV DEBIAN_FRONTEND=noninteractive
+SHELL ["/bin/bash", "-lc"]
+ENTRYPOINT ["/bin/bash", "-lc"]
+RUN apt update \
+ && apt install --no-install-recommends --fix-missing -y git libssl1.1 ca-certificates netbase \
+ && apt-get autoremove -y \
+ && apt-get clean all \
+ && rm -rf /var/lib/apt/lists/*
+COPY --from=build /pyenv /pyenv
+ENV PYENV_ROOT="/pyenv"
+RUN echo 'PATH="/pyenv/bin:$PATH"' >> /etc/profile.d/02-pyenv.sh
+RUN echo 'eval "$(pyenv init -)"' >> /etc/profile.d/02-pyenv.sh
+RUN echo 'pyenv global 3.5.6 3.6.7 3.7.1' >> /etc/profile.d/02-pyenv.sh
+# These are needed for some tests
+ENV LC_ALL=C.UTF-8
+ENV LANG=C.UTF-8
+ENV isolated=true
\ No newline at end of file
diff --git a/check_docker/testing_tools/vagrant/Vagrantfile b/check_docker/testing_tools/vagrant/Vagrantfile
new file mode 100644
index 0000000..f3b62dc
--- /dev/null
+++ b/check_docker/testing_tools/vagrant/Vagrantfile
@@ -0,0 +1,83 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+ # The most common configuration options are documented and commented below.
+ # For a complete reference, please see the online documentation at
+ # https://docs.vagrantup.com.
+
+ # Every Vagrant development environment requires a box. You can search for
+ # boxes at https://atlas.hashicorp.com/search.
+ config.vm.box = "geerlingguy/ubuntu1604"
+ config.vm.box_version = "1.2.5"
+
+ # Disable automatic box update checking. If you disable this, then
+ # boxes will only be checked for updates when the user runs
+ # `vagrant box outdated`. This is not recommended.
+ # config.vm.box_check_update = false
+
+ # Create a forwarded port mapping which allows access to a specific port
+ # within the machine from a port on the host machine. In the example below,
+ # accessing "localhost:8080" will access port 80 on the guest machine.
+ # config.vm.network "forwarded_port", guest: 80, host: 8080
+
+ # Create a private network, which allows host-only access to the machine
+ # using a specific IP.
+ # config.vm.network "private_network", ip: "192.168.33.10"
+
+ # Create a public network, which generally matched to bridged network.
+ # Bridged networks make the machine appear as another physical device on
+ # your network.
+ # config.vm.network "public_network"
+
+ # Share an additional folder to the guest VM. The first argument is
+ # the path on the host to the actual folder. The second argument is
+ # the path on the guest to mount the folder. And the optional third
+ # argument is a set of non-required options.
+ # config.vm.synced_folder "../data", "/vagrant_data"
+
+ # Provider-specific configuration so you can fine-tune various
+ # backing providers for Vagrant. These expose provider-specific options.
+ # Example for VirtualBox:
+ #
+ # config.vm.provider "virtualbox" do |vb|
+ # # Display the VirtualBox GUI when booting the machine
+ # vb.gui = true
+ #
+ # # Customize the amount of memory on the VM:
+ # vb.memory = "1024"
+ # end
+ #
+ # View the documentation for the provider you are using for more
+ # information on available options.
+
+ # Define a Vagrant Push strategy for pushing to Atlas. Other push strategies
+ # such as FTP and Heroku are also available. See the documentation at
+ # https://docs.vagrantup.com/v2/push/atlas.html for more information.
+ # config.push.define "atlas" do |push|
+ # push.app = "YOUR_ATLAS_USERNAME/YOUR_APPLICATION_NAME"
+ # end
+
+ # Enable provisioning with a shell script. Additional provisioners such as
+ # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
+ # documentation for more information about their specific syntax and use.
+ config.vm.provision "shell", inline: <<-SHELL
+ add-apt-repository -y ppa:deadsnakes/ppa
+ apt update
+ apt install -y python3.8 3.8-distutils curl
+ curl -s https://bootstrap.pypa.io/get-pip.py | python3.8
+ curl -fsSL https://get.docker.com | sh
+ usermod -a -G docker vagrant
+ curl -s -L https://github.com/bats-core/bats-core/archive/master.tar.gz | tar -xzf -
+ bash bats-core-master/install.sh /usr/local
+ rm -rf ./bats-core-master
+ docker swarm init
+ SHELL
+ # No FS share to allow any depds to the host
+ config.vm.synced_folder "../../", "/check_docker", disabled: false, mount_options: ["ro"]
+
+end
diff --git a/check_docker/testing_tools/vagrant/bats_fixtures.bash b/check_docker/testing_tools/vagrant/bats_fixtures.bash
new file mode 100644
index 0000000..1375428
--- /dev/null
+++ b/check_docker/testing_tools/vagrant/bats_fixtures.bash
@@ -0,0 +1,29 @@
+
+good_container() {
+ docker run -d --name good_sleep busybox sleep 1d
+}
+
+bad_container() {
+ docker run -d --name bad_sleep busybox false
+}
+
+current_container() {
+ docker pull busybox:latest
+ docker run -d --name current_container busybox:latest sleep 1d
+}
+
+old_container() {
+ docker pull busybox:1.28.1
+ docker tag busybox:1.28.1 busybox:latest
+ docker rmi busybox:1.28.1
+ docker run -d --name old_container busybox:latest sleep 1d
+}
+
+
+crashing_container() {
+ docker run -d --name crashes --restart always busybox false
+}
+
+get_check_docker_version() {
+ pip3 show check_docker 2>/dev/null | sed -n '/^Version: /s/^Version: //p'
+}
\ No newline at end of file
diff --git a/check_docker/testing_tools/vagrant/tests.bats b/check_docker/testing_tools/vagrant/tests.bats
new file mode 100644
index 0000000..45ba27e
--- /dev/null
+++ b/check_docker/testing_tools/vagrant/tests.bats
@@ -0,0 +1,279 @@
+
+if ! id vagrant
+then
+ echo "This is only intended to be run inside a vagrant box!" >&2
+ echo "Running it outside may result in data loss" >&2
+fi
+
+NEWEST_SDIST="$(ls -t /check_docker/dist/check_docker-*.tar.gz | head -1)"
+NEWEST_WHEEL="$(ls -t /check_docker/dist/check_docker-*.whl | head -1)"
+
+teardown()
+{
+ docker ps -aq
+ COUNT=$(docker ps -aq | wc -l)
+ if [ $COUNT -ne 0 ]
+ then
+ docker stop -t 0 $(docker ps -aq)
+ docker rm -f $(docker ps -aq)
+ fi
+ STACKS=$(docker stack ls)
+ if grep -q TEST_STACK <<<"$STACKS"
+ then
+ docker stack rm TEST_STACK
+ TEST_CONTAINERS_COUNT=$(docker ps | grep TEST_STACK | wc -l)
+ while [ $TEST_CONTAINERS_COUNT -ne 0 ]
+ do
+ sleep 1
+ TEST_CONTAINERS_COUNT=$(docker ps | grep TEST_STACK | wc -l)
+ done
+
+ TEST_NETWORK_COUNT=$(docker network ls | grep TEST_STACK | wc -l)
+ while [ $TEST_NETWORK_COUNT -ne 0 ]
+ do
+ sleep 1
+ TEST_NETWORK_COUNT=$(docker network ls | grep TEST_STACK | wc -l)
+ done
+ fi
+}
+
+
+load bats_fixtures
+
+
+@test "Confirm check_docker is not in path" {
+
+ # Before we start make sure check_docker is not present
+ sudo -H pip3.8 uninstall -y check-docker || true
+ run which check_docker
+ [ "$status" -eq 1 ]
+}
+
+@test "Confirm 'check-docker' is not installed" {
+
+ # Before we start make sure check_docker is not present
+ pip3.8 list 2>&1 | grep -ve check-docker
+}
+
+@test "Confirm source package, $NEWEST_SDIST, is installable" {
+ echo pip3.8 install "$NEWEST_SDIST"
+ run sudo -H pip3.8 install "$NEWEST_SDIST"
+ [ "$status" -eq 0 ]
+}
+
+@test "Re-Confirm 'check-docker' is not installed" {
+
+ # This should never error since the previous step ensures package is already present
+ sudo -H pip3.8 uninstall -y check-docker
+ # Before we start make sure check_docker is not present
+ pip3.8 list 2>&1 | grep -ve check-docker
+}
+
+@test "Confirm wheel package, $NEWEST_WHEEL, is installable" {
+
+ run sudo -H pip3.8 install "$NEWEST_WHEEL"
+ [ "$status" -eq 0 ]
+}
+
+@test "Confirm check_docker appears in path" {
+ run which check_docker
+ [ "$status" -eq 0 ]
+}
+
+@test "Confirm package is installed" {
+ pip3.8 list | grep 'check-docker'
+}
+
+# It is normal for this to fail when preparing for a PR.
+@test "Confirm package version is not already in PyPi" {
+ VERSION=$(get_check_docker_version)
+ REMOTE_HTTP_STATUS=$(curl -LI https://pypi.org/project/check_docker/${VERSION}/ -w "%{http_code}" -o /dev/null -s)
+ [ "$REMOTE_HTTP_STATUS" == 404 ]
+}
+
+@test "Confirm check_docker version matches package" {
+ PACKAGE_VERSION=$(get_check_docker_version)
+ CHECK_VERSION=$(python3.8 -c 'from check_docker import check_docker; print(check_docker.__version__)')
+
+ [ "$PACKAGE_VERSION" == "$CHECK_VERSION" ]
+}
+
+@test "Confirm check_swarm version matches package" {
+ PACKAGE_VERSION=$(get_check_docker_version)
+ CHECK_VERSION=$(python3.8 -c 'from check_docker import check_swarm; print(check_swarm.__version__)')
+
+ [ "$PACKAGE_VERSION" == "$CHECK_VERSION" ]
+}
+
+@test "Good status" {
+ good_container
+ sleep 1
+ run check_docker --container good_sleep --status running
+ echo "$status"
+ echo $output
+ [ "$status" -eq 0 ]
+}
+
+@test "Bad status" {
+ bad_container
+ run check_docker --container bad_sleep --status running
+ echo "$status"
+ echo $output
+ [ "$status" -eq 2 ]
+}
+
+@test "Current version" {
+ docker pull busybox
+ current_container
+ run check_docker --container current_container --version
+ echo "$status"
+ echo $output
+ [ "$status" -eq 0 ]
+}
+
+@test "Old version" {
+ old_container
+ run check_docker --container old_container --version
+ echo "$status"
+ echo $output
+ [ "$status" -eq 2 ]
+}
+
+@test "Doesn't crash" {
+ good_container
+ sleep 5
+ run check_docker --container good_sleep --restarts 1:2
+ echo "$status"
+ echo $output
+ [ "$status" -eq 0 ]
+}
+
+@test "Does crash" {
+ crashing_container
+ sleep 5
+ run check_docker --container crashes --restarts 1:2
+ echo "$status"
+ echo $output
+ [ "$status" -eq 2 ]
+}
+
+@test "Checks multiple containers" {
+ good_container
+ current_container
+ run check_docker --container good_sleep current_container --status running
+ echo "$status"
+ echo $output
+ [ "$status" -eq 0 ]
+}
+
+@test "Checks multiple containers regex" {
+ good_container
+ current_container
+ run check_docker --container '.*' --status running
+ echo "$status"
+ echo $output
+ [ "$status" -eq 0 ]
+}
+
+@test "Checks get all containers" {
+ good_container
+ current_container
+ run check_docker --container '.*' --status running
+ echo "$status"
+ echo $output
+ [ "$status" -eq 0 ]
+ CONTIANERS_IN_CHECK=$(echo $output | tr ';' '\n' | wc -l)
+ [ "$CONTIANERS_IN_CHECK" -eq 2 ]
+
+}
+
+SITE_PACKAGES_DIR=/$(pip3.8 show check_docker | grep '^Location' | cut -d ' ' -f 2)/check_docker
+@test "Can check_docker be run when called directly" {
+
+ run python3.8 $SITE_PACKAGES_DIR/check_docker.py --help
+ [ "$status" -eq 0 ]
+}
+
+@test "Can check_swarm be run when called directly" {
+
+ run python3.8 $SITE_PACKAGES_DIR/check_swarm.py --help
+ [ "$status" -eq 0 ]
+
+}
+
+@test "Confirm replicated service failures are noticed" {
+ cat <