mirror of
https://github.com/ansible-collections/community.docker.git
synced 2025-12-16 20:08:41 +00:00
3b6068e44b
* Vendor parts of the Docker SDK for Python
This is a combination of the latest git version
(db7f8b8bb6)
with some fixes to make it compatible with Python 2.7
and adjusting some imports.
* Polishing.
* Fix bug that prevents contexts to be found when no Docker config file is present.
Ref: https://github.com/docker/docker-py/issues/3190
* Linting.
* Fix typos.
* Adjust more to behavior of Docker CLI.
* Add first iteration of docker_context_info module.
* Improvements.
* Add basic CI.
* Add caveat on contexts[].config result.
104 lines
3.1 KiB
Python
104 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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# This code is part of the Ansible collection community.docker, but is an independent component.
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# This particular file, and this file only, is based on the Docker SDK for Python (https://github.com/docker/docker-py/)
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#
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# Copyright (c) 2016-2025 Docker, Inc.
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#
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# It is licensed under the Apache 2.0 license (see LICENSES/Apache-2.0.txt in this collection)
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# SPDX-License-Identifier: Apache-2.0
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import hashlib
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import json
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import os
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from ..constants import DEFAULT_UNIX_SOCKET, IS_WINDOWS_PLATFORM
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from ..utils.config import find_config_file, get_default_config_file
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from ..utils.utils import parse_host
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METAFILE = "meta.json"
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def get_current_context_name_with_source():
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if os.environ.get('DOCKER_HOST'):
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return "default", "DOCKER_HOST environment variable set"
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if os.environ.get('DOCKER_CONTEXT'):
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return os.environ['DOCKER_CONTEXT'], "DOCKER_CONTEXT environment variable set"
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docker_cfg_path = find_config_file()
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if docker_cfg_path:
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try:
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with open(docker_cfg_path) as f:
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return json.load(f).get("currentContext", "default"), "configuration file {file}".format(file=docker_cfg_path)
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except Exception:
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pass
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return "default", "fallback value"
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def get_current_context_name():
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return get_current_context_name_with_source()[0]
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def write_context_name_to_docker_config(name=None):
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if name == 'default':
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name = None
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docker_cfg_path = find_config_file()
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config = {}
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if docker_cfg_path:
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try:
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with open(docker_cfg_path) as f:
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config = json.load(f)
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except Exception as e:
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return e
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current_context = config.get("currentContext", None)
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if current_context and not name:
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del config["currentContext"]
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elif name:
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config["currentContext"] = name
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else:
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return
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if not docker_cfg_path:
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docker_cfg_path = get_default_config_file()
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try:
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with open(docker_cfg_path, "w") as f:
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json.dump(config, f, indent=4)
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except Exception as e:
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return e
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def get_context_id(name):
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return hashlib.sha256(name.encode('utf-8')).hexdigest()
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def get_context_dir():
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docker_cfg_path = find_config_file() or get_default_config_file()
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return os.path.join(os.path.dirname(docker_cfg_path), "contexts")
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def get_meta_dir(name=None):
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meta_dir = os.path.join(get_context_dir(), "meta")
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if name:
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return os.path.join(meta_dir, get_context_id(name))
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return meta_dir
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def get_meta_file(name):
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return os.path.join(get_meta_dir(name), METAFILE)
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def get_tls_dir(name=None, endpoint=""):
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context_dir = get_context_dir()
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if name:
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return os.path.join(context_dir, "tls", get_context_id(name), endpoint)
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return os.path.join(context_dir, "tls")
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def get_context_host(path=None, tls=False):
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host = parse_host(path, IS_WINDOWS_PLATFORM, tls)
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if host == DEFAULT_UNIX_SOCKET:
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# remove http+ from default docker socket url
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if host.startswith("http+"):
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host = host[5:]
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return host
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