inventory/docker_node_images

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2018             mk@mathias-kettner.de |
  11 # +------------------------------------------------------------------+
  12 #
  13 # This file is part of Check_MK.
  14 # The official homepage is at http://mathias-kettner.de/check_mk.
  15 #
  16 # check_mk is free software;  you can redistribute it and/or modify it
  17 # under the  terms of the  GNU General Public License  as published by
  18 # the Free Software Foundation in version 2.  check_mk is  distributed
  19 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  20 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  21 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  22 # tails. You should have  received  a copy of the  GNU  General Public
  23 # License along with GNU Make; see the file  COPYING.  If  not,  write
  24 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  25 # Boston, MA 02110-1301 USA.
  26
  27
  28 def _parse_docker_node_images(info):
  29     import json
  30     parsed = {}
  31     section_name = None
  32     for line in info:
  33         if line[0].startswith("[[[") and line[0].endswith("]]]"):
  34             section_name = line[0][3:-3]
  35             continue
  36
  37         data = json.loads(" ".join(line))
  38
  39         if section_name == "images" and data:
  40             parsed.setdefault(data["ID"], data)
  41
  42         elif section_name == "images_labels":
  43             if len(data) == 2:
  44                 image_id, labels = data
  45                 image = parsed.get(image_id)
  46                 if image is not None and labels:
  47                     image.setdefault("__labels__", labels)
  48
  49         elif section_name == "containers":
  50             image_name = data["Image"]
  51             if ":" in image_name:
  52                 repository, tag = image_name.split(":", 1)
  53             else:
  54                 repository, tag = image_name, "latest"
  55
  56             image = parsed.get((repository, tag))
  57             if image is not None:
  58                 image.setdefault("__containers__", []).append(data)
  59     return parsed
  60
  61
  62 def inv_docker_node_images(info, inventory_tree, status_data_tree):
  63     parsed = _parse_docker_node_images(info)
  64     path = "software.applications.docker.images:"
  65     inv_node = inventory_tree.get_list(path)
  66     status_node = status_data_tree.get_list(path)
  67
  68     for image_id, image in sorted(parsed.iteritems()):
  69         inv_node.append({
  70             "repository"        : image["Repository"],
  71             "tag"               : image["Tag"],
  72             "id"                : image_id,
  73             "creation"          : image["CreatedAt"],
  74             "size"              : image["VirtualSize"],
  75             "labels"            : _format_labels(image.get("__labels__", {}).items()),
  76         })
  77
  78         status_node.append({
  79             "repository"        : image["Repository"],
  80             "tag"               : image["Tag"],
  81             "id"                : image_id,
  82             "amount_containers" : len(image.get("__containers__", [])),
  83         })
  84
  85
  86 inv_info['docker_node_images'] = {
  87     'inv_function'    : inv_docker_node_images,
  88     'has_status_data' : True,
  89 }
  90
  91
  92 def _parse_docker_node_containers(info):
  93     import json
  94     parsed = {}
  95     section_name = None
  96     for line in info:
  97         if line[0].startswith("[[[") and line[0].endswith("]]]"):
  98             section_name = line[0][3:-3]
  99             continue
 100
 101         if section_name != "containers":
 102             continue
 103
 104         data = json.loads(" ".join(line))
 105
 106         image_name = data["Image"]
 107         if ":" in image_name:
 108             data["Repository"], data["Tag"] = image_name.split(":", 1)
 109         else:
 110             data["Repository"], data["Tag"] = image_name, "latest"
 111
 112         data["Labels"] = [ p.split("=", 1) for p in data["Labels"].split(",") ]
 113
 114         parsed[data["ID"]] = data
 115
 116
 117     return parsed
 118
 119
 120 def inv_docker_node_images_containers(info, inventory_tree, status_data_tree):
 121     parsed = _parse_docker_node_containers(info)
 122     status_node = status_data_tree.get_list("software.applications.docker.containers:")
 123
 124     for id_, container in sorted(parsed.iteritems()):
 125         status_node.append({
 126             "id"                : id_,
 127             "repository"        : container["Repository"],
 128             "tag"               : container["Tag"],
 129             "name"              : container["Names"],
 130             "creation"          : container["CreatedAt"],
 131             "labels"            : _format_labels(container["Labels"]),
 132             "status"            : container["Status"],
 133         })
 134
 135
 136 def _format_labels(labels):
 137     return ", ".join([ ": ".join(p) for p in labels ])
 138
 139 # TODO: This section contains also information about the containers. We should
 140 # better split it into multiple sections and add them to the different plugins
 141 # using the extra_sections feature. In case this is not possible for the inventory
 142 # plugins at the moment we should make it possible.
 143 inv_info['docker_node_images.containers'] = {
 144     'inv_function'    : inv_docker_node_images_containers,
 145     'has_status_data' : True,
 146 }