fix flake8 errors
This commit is contained in:
parent
964e25d46a
commit
b7be2b4b95
2
.flake8
2
.flake8
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@ -1,5 +1,5 @@
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[flake8]
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ignore = D103, W503
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ignore = D103, D107, W503
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max-line-length = 99
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inline-quotes = double
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exclude =
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@ -12,6 +12,7 @@ from dockertidy.Parser import timedelta
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class AutoStop:
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"""Autostop object to handle long running containers."""
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def __init__(self):
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self.config = SingleConfig()
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@ -20,6 +21,7 @@ class AutoStop:
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self.docker = self._get_docker_client()
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def stop_containers(self):
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"""Identify long running containers and terminate them."""
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client = self.docker
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config = self.config.config
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@ -11,6 +11,7 @@ from dockertidy.Parser import timedelta_validator
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class DockerTidy:
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"""Cli entrypoint to handle command arguments."""
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def __init__(self):
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self.log = SingleLog()
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@ -20,14 +20,12 @@ default_config_file = os.path.join(config_dir, "config.yml")
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class Config():
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"""
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Create an object with all necessary settings.
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"""Create an object with all necessary settings.
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Settings are loade from multiple locations in defined order (last wins):
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- default settings defined by `self._get_defaults()`
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- yaml config file, defaults to OS specific user config dir
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see (https://pypi.org/project/appdirs/)
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- provides cli parameters
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- default settings defined by `self._get_defaults()`
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- yaml config file, defaults to OS specific user config directory
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- provided cli parameters
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"""
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SETTINGS = {
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@ -241,4 +239,6 @@ class Config():
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class SingleConfig(Config, metaclass=Singleton):
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"""Singleton config object."""
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pass
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@ -2,305 +2,309 @@
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"""Remove unused docker containers and images."""
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import fnmatch
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import logging
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import sys
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from collections import namedtuple
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import dateutil.parser
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import docker
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import docker.errors
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import requests.exceptions
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from docker.utils import kwargs_from_env
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from dockertidy.Config import SingleConfig
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from dockertidy.Logger import SingleLog
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# This seems to be something docker uses for a null/zero date
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YEAR_ZERO = "0001-01-01T00:00:00Z"
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ExcludeLabel = namedtuple("ExcludeLabel", ["key", "value"])
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class GarbageCollector:
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"""Garbage collector object to handle cleanup tasks of container, images and volumes."""
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# This seems to be something docker uses for a null/zero date
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YEAR_ZERO = "0001-01-01T00:00:00Z"
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ExcludeLabel = namedtuple("ExcludeLabel", ["key", "value"])
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def __init__(self):
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self.config = SingleConfig()
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self.log = SingleLog()
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self.logger = SingleLog().logger
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self.docker = self._get_docker_client()
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def cleanup_containers(client, max_container_age, dry_run, exclude_container_labels):
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all_containers = get_all_containers(client)
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filtered_containers = filter_excluded_containers(
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all_containers,
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exclude_container_labels,
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)
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for container_summary in reversed(list(filtered_containers)):
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container = api_call(
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client.inspect_container,
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container=container_summary["Id"],
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def cleanup_containers(self):
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"""Identify old containers and remove them."""
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config = self.config.config
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client = self.docker
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all_containers = self._get_all_containers(client)
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filtered_containers = self._filter_excluded_containers(
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all_containers,
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config["gc"]["exclude_container_labels"],
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)
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if not container or not should_remove_container(
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for container_summary in reversed(list(filtered_containers)):
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container = self._api_call(
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client.inspect_container,
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container=container_summary["Id"],
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)
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if not container or not self._should_remove_container(
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container,
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max_container_age,
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):
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continue
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config["gc"]["max_container_age"],
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):
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continue
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log.info("Removing container %s %s %s" % (container["Id"][:16], container.get(
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"Name", "").lstrip("/"), container["State"]["FinishedAt"]))
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if not dry_run:
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api_call(
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client.remove_container,
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container=container["Id"],
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v=True,
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self.logger.info(
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"Removing container %s %s %s" % (
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container["Id"][:16], container.get("Name", "").lstrip("/"),
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container["State"]["FinishedAt"]
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)
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)
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def filter_excluded_containers(containers, exclude_container_labels):
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if not exclude_container_labels:
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return containers
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def include_container(container):
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if should_exclude_container_with_labels(
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container,
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exclude_container_labels,
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):
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return False
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return True
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return filter(include_container, containers)
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def should_exclude_container_with_labels(container, exclude_container_labels):
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if container["Labels"]:
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for exclude_label in exclude_container_labels:
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if exclude_label.value:
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matching_keys = fnmatch.filter(
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container["Labels"].keys(),
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exclude_label.key,
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if not config["dry_run"]:
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self._api_call(
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client.remove_container,
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container=container["Id"],
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v=True,
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)
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label_values_to_check = [
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container["Labels"][matching_key] for matching_key in matching_keys
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]
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if fnmatch.filter(label_values_to_check, exclude_label.value):
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return True
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else:
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if fnmatch.filter(container["Labels"].keys(), exclude_label.key):
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return True
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return False
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def _filter_excluded_containers(self, containers):
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config = self.config.config
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def should_remove_container(container, min_date):
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state = container.get("State", {})
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if not config["gc"]["exclude_container_labels"]:
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return containers
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if state.get("Running"):
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def include_container(container):
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if self._should_exclude_container_with_labels(
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container,
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config["gc"]["exclude_container_labels"],
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):
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return False
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return True
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return filter(include_container, containers)
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def _should_exclude_container_with_labels(self, container):
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config = self.config.config
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if container["Labels"]:
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for exclude_label in config["gc"]["exclude_container_labels"]:
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if exclude_label.value:
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matching_keys = fnmatch.filter(
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container["Labels"].keys(),
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exclude_label.key,
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)
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label_values_to_check = [
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container["Labels"][matching_key] for matching_key in matching_keys
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]
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if fnmatch.filter(label_values_to_check, exclude_label.value):
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return True
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else:
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if fnmatch.filter(container["Labels"].keys(), exclude_label.key):
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return True
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return False
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if state.get("Ghost"):
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return True
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def _should_remove_container(self, container, min_date):
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state = container.get("State", {})
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# Container was created, but never started
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if state.get("FinishedAt") == YEAR_ZERO:
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created_date = dateutil.parser.parse(container["Created"])
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return created_date < min_date
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if state.get("Running"):
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return False
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finished_date = dateutil.parser.parse(state["FinishedAt"])
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return finished_date < min_date
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def get_all_containers(client):
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log.info("Getting all containers")
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containers = client.containers(all=True)
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log.info("Found %s containers", len(containers))
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return containers
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def get_all_images(client):
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log.info("Getting all images")
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images = client.images()
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log.info("Found %s images", len(images))
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return images
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def get_dangling_volumes(client):
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log.info("Getting dangling volumes")
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volumes = client.volumes({"dangling": True})["Volumes"] or []
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log.info("Found %s dangling volumes", len(volumes))
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return volumes
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def cleanup_images(client, max_image_age, dry_run, exclude_set):
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# re-fetch container list so that we don't include removed containers
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containers = get_all_containers(client)
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images = get_all_images(client)
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if docker.utils.compare_version("1.21", client._version) < 0:
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image_tags_in_use = {container["Image"] for container in containers}
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images = filter_images_in_use(images, image_tags_in_use)
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else:
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# ImageID field was added in 1.21
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image_ids_in_use = {container["ImageID"] for container in containers}
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images = filter_images_in_use_by_id(images, image_ids_in_use)
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images = filter_excluded_images(images, exclude_set)
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for image_summary in reversed(list(images)):
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remove_image(client, image_summary, max_image_age, dry_run)
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def filter_excluded_images(images, exclude_set):
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def include_image(image_summary):
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image_tags = image_summary.get("RepoTags")
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if no_image_tags(image_tags):
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if state.get("Ghost"):
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return True
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for exclude_pattern in exclude_set:
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if fnmatch.filter(image_tags, exclude_pattern):
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return False
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return True
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return filter(include_image, images)
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# Container was created, but never started
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if state.get("FinishedAt") == self.YEAR_ZERO:
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created_date = dateutil.parser.parse(container["Created"])
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return created_date < min_date
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finished_date = dateutil.parser.parse(state["FinishedAt"])
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return finished_date < min_date
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def filter_images_in_use(images, image_tags_in_use):
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def _get_all_containers(self):
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client = self.docker
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self.logger.info("Getting all containers")
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containers = client.containers(all=True)
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self.logger.info("Found %s containers", len(containers))
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return containers
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def get_tag_set(image_summary):
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image_tags = image_summary.get("RepoTags")
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if no_image_tags(image_tags):
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# The repr of the image Id used by client.containers()
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return set(["%s:latest" % image_summary["Id"][:12]])
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return set(image_tags)
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def _get_all_images(self):
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client = self.docker
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self.logger.info("Getting all images")
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images = client.images()
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self.logger.info("Found %s images", len(images))
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return images
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def image_not_in_use(image_summary):
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return not get_tag_set(image_summary) & image_tags_in_use
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def _get_dangling_volumes(self):
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client = self.docker
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self.logger.info("Getting dangling volumes")
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volumes = client.volumes({"dangling": True})["Volumes"] or []
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self.logger.info("Found %s dangling volumes", len(volumes))
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return volumes
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return filter(image_not_in_use, images)
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def cleanup_images(self, exclude_set):
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"""Identify old images and remove them."""
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# re-fetch container list so that we don't include removed containers
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client = self.docker
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config = self.config.config
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def filter_images_in_use_by_id(images, image_ids_in_use):
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def image_not_in_use(image_summary):
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return image_summary["Id"] not in image_ids_in_use
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return filter(image_not_in_use, images)
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def is_image_old(image, min_date):
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return dateutil.parser.parse(image["Created"]) < min_date
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def no_image_tags(image_tags):
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return not image_tags or image_tags == ["<none>:<none>"]
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def remove_image(client, image_summary, min_date, dry_run):
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image = api_call(client.inspect_image, image=image_summary["Id"])
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if not image or not is_image_old(image, min_date):
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return
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log.info("Removing image %s" % format_image(image, image_summary))
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if dry_run:
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return
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image_tags = image_summary.get("RepoTags")
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# If there are no tags, remove the id
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if no_image_tags(image_tags):
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api_call(client.remove_image, image=image_summary["Id"])
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return
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# Remove any repository tags so we don't hit 409 Conflict
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for image_tag in image_tags:
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api_call(client.remove_image, image=image_tag)
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def remove_volume(client, volume, dry_run):
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if not volume:
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return
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log.info("Removing volume %s" % volume["Name"])
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if dry_run:
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return
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api_call(client.remove_volume, name=volume["Name"])
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def cleanup_volumes(client, dry_run):
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dangling_volumes = get_dangling_volumes(client)
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for volume in reversed(dangling_volumes):
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log.info("Removing dangling volume %s", volume["Name"])
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remove_volume(client, volume, dry_run)
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def api_call(func, **kwargs):
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try:
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return func(**kwargs)
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except requests.exceptions.Timeout as e:
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params = ",".join("%s=%s" % item for item in kwargs.items())
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log.warn("Failed to call %s %s %s" % (func.__name__, params, e))
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except docker.errors.APIError as ae:
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params = ",".join("%s=%s" % item for item in kwargs.items())
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log.warn("Error calling %s %s %s" % (func.__name__, params, ae))
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def format_image(image, image_summary):
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def get_tags():
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tags = image_summary.get("RepoTags")
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if not tags or tags == ["<none>:<none>"]:
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return ""
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return ", ".join(tags)
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return "%s %s" % (image["Id"][:16], get_tags())
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def build_exclude_set(image_tags, exclude_file):
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exclude_set = set(image_tags or [])
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def is_image_tag(line):
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return line and not line.startswith("#")
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if exclude_file:
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lines = [line.strip() for line in exclude_file.read().split("\n")]
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exclude_set.update(filter(is_image_tag, lines))
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return exclude_set
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def format_exclude_labels(exclude_label_args):
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exclude_labels = []
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for exclude_label_arg in exclude_label_args:
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split_exclude_label = exclude_label_arg.split("=", 1)
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exclude_label_key = split_exclude_label[0]
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if len(split_exclude_label) == 2:
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exclude_label_value = split_exclude_label[1]
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containers = self._get_all_containers()
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images = self._get_all_images()
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if docker.utils.compare_version("1.21", client._version) < 0:
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image_tags_in_use = {container["Image"] for container in containers}
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images = self._filter_images_in_use(images, image_tags_in_use)
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else:
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exclude_label_value = None
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exclude_labels.append(ExcludeLabel(
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key=exclude_label_key,
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value=exclude_label_value,
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))
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return exclude_labels
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# ImageID field was added in 1.21
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image_ids_in_use = {container["ImageID"] for container in containers}
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images = self._filter_images_in_use_by_id(images, image_ids_in_use)
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images = self._filter_excluded_images(images, exclude_set)
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for image_summary in reversed(list(images)):
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self._rmove_image(
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client, image_summary, config["gc"]["max_image_age"], config["dry_run"]
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)
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def _filter_excluded_images(self, images, exclude_set):
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def include_image(image_summary):
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image_tags = image_summary.get("RepoTags")
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if self.no_image_tags(image_tags):
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return True
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for exclude_pattern in exclude_set:
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if fnmatch.filter(image_tags, exclude_pattern):
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return False
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return True
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return filter(include_image, images)
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def _filter_images_in_use(self, images, image_tags_in_use):
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def get_tag_set(image_summary):
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image_tags = image_summary.get("RepoTags")
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if self._no_image_tags(image_tags):
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# The repr of the image Id used by client.containers()
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return set(["%s:latest" % image_summary["Id"][:12]])
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return set(image_tags)
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def image_not_in_use(image_summary):
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return not get_tag_set(image_summary) & image_tags_in_use
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return filter(image_not_in_use, images)
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def _filter_images_in_use_by_id(self, images, image_ids_in_use):
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def image_not_in_use(image_summary):
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return image_summary["Id"] not in image_ids_in_use
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return filter(image_not_in_use, images)
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|
||||
def _is_image_old(self, image, min_date):
|
||||
return dateutil.parser.parse(image["Created"]) < min_date
|
||||
|
||||
def _no_image_tags(self, image_tags):
|
||||
return not image_tags or image_tags == ["<none>:<none>"]
|
||||
|
||||
def _remove_image(self, client, image_summary, min_date):
|
||||
config = self.config.config
|
||||
client = self.docker
|
||||
image = self._api_call(client.inspect_image, image=image_summary["Id"])
|
||||
|
||||
if not image or not self._is_image_old(image, min_date):
|
||||
return
|
||||
|
||||
self.logger.info("Removing image %s" % self._format_image(image, image_summary))
|
||||
if config["dry_run"]:
|
||||
return
|
||||
|
||||
image_tags = image_summary.get("RepoTags")
|
||||
# If there are no tags, remove the id
|
||||
if self._no_image_tags(image_tags):
|
||||
self._api_call(client.remove_image, image=image_summary["Id"])
|
||||
return
|
||||
|
||||
# Remove any repository tags so we don't hit 409 Conflict
|
||||
for image_tag in image_tags:
|
||||
self._api_call(client.remove_image, image=image_tag)
|
||||
|
||||
def _remove_volume(self, client, volume):
|
||||
config = self.config.config
|
||||
if not volume:
|
||||
return
|
||||
|
||||
self.logger.info("Removing volume %s" % volume["Name"])
|
||||
if config["dry_run"]:
|
||||
return
|
||||
|
||||
self._api_call(client.remove_volume, name=volume["Name"])
|
||||
|
||||
def cleanup_volumes(self, client):
|
||||
"""Identify old volumes and remove them."""
|
||||
dangling_volumes = self._get_dangling_volumes(client)
|
||||
|
||||
for volume in reversed(dangling_volumes):
|
||||
self.logger.info("Removing dangling volume %s", volume["Name"])
|
||||
self._remove_volume(client, volume)
|
||||
|
||||
def _api_call(self, func, **kwargs):
|
||||
try:
|
||||
return func(**kwargs)
|
||||
except requests.exceptions.Timeout as e:
|
||||
params = ",".join("%s=%s" % item for item in kwargs.items())
|
||||
self.logger.warn("Failed to call %s %s %s" % (func.__name__, params, e))
|
||||
except docker.errors.APIError as ae:
|
||||
params = ",".join("%s=%s" % item for item in kwargs.items())
|
||||
self.logger.warn("Error calling %s %s %s" % (func.__name__, params, ae))
|
||||
|
||||
def _format_image(self, image, image_summary):
|
||||
|
||||
def get_tags():
|
||||
tags = image_summary.get("RepoTags")
|
||||
if not tags or tags == ["<none>:<none>"]:
|
||||
return ""
|
||||
return ", ".join(tags)
|
||||
|
||||
return "%s %s" % (image["Id"][:16], get_tags())
|
||||
|
||||
def _build_exclude_set(self):
|
||||
config = self.config.config
|
||||
exclude_set = set(config["gc"]["exclude_image"])
|
||||
|
||||
def is_image_tag(line):
|
||||
return line and not line.startswith("#")
|
||||
|
||||
return exclude_set
|
||||
|
||||
def _format_exclude_labels(self):
|
||||
config = self.config.config
|
||||
exclude_labels = []
|
||||
|
||||
for exclude_label_arg in config["gc"]["exclude_container_label"]:
|
||||
split_exclude_label = exclude_label_arg.split("=", 1)
|
||||
exclude_label_key = split_exclude_label[0]
|
||||
if len(split_exclude_label) == 2:
|
||||
exclude_label_value = split_exclude_label[1]
|
||||
else:
|
||||
exclude_label_value = None
|
||||
exclude_labels.append(
|
||||
self.ExcludeLabel(
|
||||
key=exclude_label_key,
|
||||
value=exclude_label_value,
|
||||
)
|
||||
)
|
||||
return exclude_labels
|
||||
|
||||
def _get_docker_client(self):
|
||||
config = self.config.config
|
||||
return docker.APIClient(version="auto", timeout=config["timeout"])
|
||||
|
||||
|
||||
def main():
|
||||
logging.basicConfig(level=logging.INFO, format="%(message)s", stream=sys.stdout)
|
||||
# def main():
|
||||
# exclude_container_labels = format_exclude_labels(args.exclude_container_label)
|
||||
|
||||
args = get_args()
|
||||
client = docker.APIClient(version="auto", timeout=args.timeout, **kwargs_from_env())
|
||||
# if args.max_container_age:
|
||||
# cleanup_containers(
|
||||
# client,
|
||||
# args.max_container_age,
|
||||
# args.dry_run,
|
||||
# exclude_container_labels,
|
||||
# )
|
||||
|
||||
exclude_container_labels = format_exclude_labels(args.exclude_container_label)
|
||||
# if args.max_image_age:
|
||||
# exclude_set = build_exclude_set(args.exclude_image, args.exclude_image_file)
|
||||
# cleanup_images(client, args.max_image_age, args.dry_run, exclude_set)
|
||||
|
||||
if args.max_container_age:
|
||||
cleanup_containers(
|
||||
client,
|
||||
args.max_container_age,
|
||||
args.dry_run,
|
||||
exclude_container_labels,
|
||||
)
|
||||
|
||||
if args.max_image_age:
|
||||
exclude_set = build_exclude_set(args.exclude_image, args.exclude_image_file)
|
||||
cleanup_images(client, args.max_image_age, args.dry_run, exclude_set)
|
||||
|
||||
if args.dangling_volumes:
|
||||
cleanup_volumes(client, args.dry_run)
|
||||
# if args.dangling_volumes:
|
||||
# cleanup_volumes(client, args.dry_run)
|
||||
|
|
|
|||
|
|
@ -61,6 +61,7 @@ class MultilineJsonFormatter(jsonlogger.JsonFormatter):
|
|||
|
||||
|
||||
class Log:
|
||||
"""Base logging object."""
|
||||
|
||||
def __init__(self, level=logging.WARN, name="dockertidy", json=False):
|
||||
self.logger = logging.getLogger(name)
|
||||
|
|
@ -78,7 +79,9 @@ class Log:
|
|||
handler.addFilter(LogFilter(logging.ERROR))
|
||||
handler.setFormatter(
|
||||
MultilineFormatter(
|
||||
self.error(CONSOLE_FORMAT.format(colorama.Fore.RED, colorama.Style.RESET_ALL))))
|
||||
self.error(CONSOLE_FORMAT.format(colorama.Fore.RED, colorama.Style.RESET_ALL))
|
||||
)
|
||||
)
|
||||
|
||||
if json:
|
||||
handler.setFormatter(MultilineJsonFormatter(JSON_FORMAT))
|
||||
|
|
@ -91,7 +94,9 @@ class Log:
|
|||
handler.addFilter(LogFilter(logging.WARN))
|
||||
handler.setFormatter(
|
||||
MultilineFormatter(
|
||||
self.warn(CONSOLE_FORMAT.format(colorama.Fore.YELLOW, colorama.Style.RESET_ALL))))
|
||||
self.warn(CONSOLE_FORMAT.format(colorama.Fore.YELLOW, colorama.Style.RESET_ALL))
|
||||
)
|
||||
)
|
||||
|
||||
if json:
|
||||
handler.setFormatter(MultilineJsonFormatter(JSON_FORMAT))
|
||||
|
|
@ -104,7 +109,9 @@ class Log:
|
|||
handler.addFilter(LogFilter(logging.INFO))
|
||||
handler.setFormatter(
|
||||
MultilineFormatter(
|
||||
self.info(CONSOLE_FORMAT.format(colorama.Fore.CYAN, colorama.Style.RESET_ALL))))
|
||||
self.info(CONSOLE_FORMAT.format(colorama.Fore.CYAN, colorama.Style.RESET_ALL))
|
||||
)
|
||||
)
|
||||
|
||||
if json:
|
||||
handler.setFormatter(MultilineJsonFormatter(JSON_FORMAT))
|
||||
|
|
@ -117,7 +124,9 @@ class Log:
|
|||
handler.addFilter(LogFilter(logging.CRITICAL))
|
||||
handler.setFormatter(
|
||||
MultilineFormatter(
|
||||
self.critical(CONSOLE_FORMAT.format(colorama.Fore.RED, colorama.Style.RESET_ALL))))
|
||||
self.critical(CONSOLE_FORMAT.format(colorama.Fore.RED, colorama.Style.RESET_ALL))
|
||||
)
|
||||
)
|
||||
|
||||
if json:
|
||||
handler.setFormatter(MultilineJsonFormatter(JSON_FORMAT))
|
||||
|
|
@ -130,8 +139,9 @@ class Log:
|
|||
handler.addFilter(LogFilter(logging.DEBUG))
|
||||
handler.setFormatter(
|
||||
MultilineFormatter(
|
||||
self.critical(CONSOLE_FORMAT.format(colorama.Fore.BLUE,
|
||||
colorama.Style.RESET_ALL))))
|
||||
self.critical(CONSOLE_FORMAT.format(colorama.Fore.BLUE, colorama.Style.RESET_ALL))
|
||||
)
|
||||
)
|
||||
|
||||
if json:
|
||||
handler.setFormatter(MultilineJsonFormatter(JSON_FORMAT))
|
||||
|
|
@ -139,6 +149,7 @@ class Log:
|
|||
return handler
|
||||
|
||||
def set_level(self, s):
|
||||
"""Set log level."""
|
||||
self.logger.setLevel(s)
|
||||
|
||||
def debug(self, msg):
|
||||
|
|
@ -173,12 +184,16 @@ class Log:
|
|||
return "{}{}{}".format(color, msg, colorama.Style.RESET_ALL)
|
||||
|
||||
def sysexit(self, code=1):
|
||||
"""Exit running program with given exit code."""
|
||||
sys.exit(code)
|
||||
|
||||
def sysexit_with_message(self, msg, code=1):
|
||||
"""Exit running program with given exit code and message."""
|
||||
self.logger.critical(str(msg))
|
||||
self.sysexit(code)
|
||||
|
||||
|
||||
class SingleLog(Log, metaclass=Singleton):
|
||||
"""Singleton logger object."""
|
||||
|
||||
pass
|
||||
|
|
|
|||
|
|
@ -9,9 +9,12 @@ def to_bool(string):
|
|||
|
||||
|
||||
class Singleton(type):
|
||||
"""Singleton metaclass."""
|
||||
|
||||
_instances = {}
|
||||
|
||||
def __call__(cls, *args, **kwargs):
|
||||
def __call__(cls, *args, **kwargs): # noqa
|
||||
|
||||
if cls not in cls._instances:
|
||||
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
|
||||
return cls._instances[cls]
|
||||
|
|
|
|||
Loading…
Reference in New Issue