Package: docker-image-updater
A utility to update docker images automatically. Supports execution of
arbitrary commands when an image is updated, in order to restart running
containers or trigger other custom behaviour.InstallationDocker image updater can be installed from thePython Package Indexusing:pip install docker-image-updaterInstallation into avirtualenvis highly recommended!Usageusage: docker-image-updater [-h] [-f FILE] [--debug] [file [file ...]]

positional arguments:
  file                  configuration file(s) to use

optional arguments:
  -h, --help            show this help message and exit
  -f FILE, --file FILE  deprecated - this flag will be removed in the future
  --debug               show debug messagesDocker image updater requires one or more configuration files which specify
sets of images to watch and commands to execute. By default it will look
for/etc/docker-image-updater.ymlbut you may give one or more alternate
files on the command-line.When specifying more than one configuration file, the settings will be
merged together with items from the latter configuration file(s) overwriting
items from earlier files.Recommended usage is to run docker image updater from cron, using
something likecronicto receive mail
only in case of errors.Example output# docker-image-updater
22:13:04 INFO     Updater    Checking images in set jenkins
22:13:04 INFO     Updater    Updating image zoni/jenkins
22:13:04 INFO     Updater    Pulling image zoni/jenkins
...........................................................................................................................................................................................................................................................................................................................
22:14:50 INFO     Updater    Image zoni/jenkins updated to latest version
22:14:50 INFO     Updater    Running command: supervisorctl restart jenkins
jenkins: stopped
jenkins: started
22:14:54 INFO     Updater    Command exited successfullyConfiguration formatConfiguration is expressed through a YAML file such as the following:config:
  docker:
    base_url: "unix://var/run/docker.sock"
    version: "1.16"
watch:
  my-app:
    images:
     - my-app
     - redis
    commands:
     - restart my-appThe itemwatchdefines sets of images to watch. This is a dictionary where
the keys (my-appin the example above) are arbitrary values for human
reference. Under each of these keys a dictonary with the itemsimagesandcommandsis expected.imagesdefines a list of docker images to check for updates. You can
specify these asimage:tagor simply asimage, in which case Docker will
use thelatesttag automatically.commandsdefines a list of shell commands to execute whenever one of the
listed images was updated. These will be run sequentially, in order.All items underconfig.dockerare passed to the Docker client.
For supported options, refer to thedocker-py documentation.Exit codesDocker image updater will exit with status 0 when everything went well,
and there were either no updates or images were updated and all defined
commands returned status code 0.If an image fails to update or one or more defined commands exits with
a non-zero exit status then docker image updater will itself exit with
status 1.Star meIf you use this software, please considerstarringit on GitHub. This will give me some idea of how much it is used by
other people.Related projectsdocker-pullerDockerHub Webhook ListenerChanges1.0.0 (2015-11-10)Allow multiple configuration files to be specified (settings will be merged in order)Deprecated the–fileargumentPrint friendlier error messages in many cases of incorrect configurations0.0.2 (2015-03-02)Friendlier config file load error messageChange default config to/etc/docker-image-updater.yml0.0.1 (2015-03-01)Initial public release.LicenseThe MIT License (MIT)Copyright (c) 2015 Nick Groenen <nick@groenen.me>Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.