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annotate libervia/backend/plugins/plugin_app_manager_docker/__init__.py @ 4127:5fc26a6ef113

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author Goffi <goffi@goffi.org>
date Tue, 03 Oct 2023 16:27:51 +0200
parents 4b842c1fb686
children 4aa62767f501
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f44402f8a81f plugin app managed docker: handle Docker application with App Manager
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1 #!/usr/bin/env python3
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2
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3 # SàT plugin to manage Docker
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4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19 from pathlib import Path
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20 from twisted.python.procutils import which
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21 from libervia.backend.core.i18n import _
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22 from libervia.backend.core.constants import Const as C
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23 from libervia.backend.core import exceptions
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24 from libervia.backend.core.log import getLogger
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25 from libervia.backend.tools.common import async_process
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26
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27 log = getLogger(__name__)
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28
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29
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30 PLUGIN_INFO = {
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31 C.PI_NAME: "Docker Applications Manager",
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32 C.PI_IMPORT_NAME: "APP_MANAGER_DOCKER",
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33 C.PI_TYPE: C.PLUG_TYPE_MISC,
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34 C.PI_MODES: C.PLUG_MODE_BOTH,
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35 C.PI_DEPENDENCIES: ["APP_MANAGER"],
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36 C.PI_MAIN: "AppManagerDocker",
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37 C.PI_HANDLER: "no",
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38 C.PI_DESCRIPTION: _(
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39 """Applications Manager for Docker"""),
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40 }
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41
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42
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43 class AppManagerDocker:
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44 name = "docker-compose"
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45 discover_path = Path(__file__).parent
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46
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47 def __init__(self, host):
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48 log.info(_("Docker App Manager initialization"))
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49 try:
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50 self.docker_compose_path = which('docker-compose')[0]
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51 except IndexError:
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52 raise exceptions.NotFound(
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53 '"docker-compose" executable not found, Docker can\'t be used with '
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54 'application manager')
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55 self.host = host
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56 self._am = host.plugins['APP_MANAGER']
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57 self._am.register(self)
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58
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59 async def start(self, app_data: dict) -> None:
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60 await self._am.start_common(app_data)
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61 working_dir = app_data['_instance_dir_path']
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62 try:
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63 override = app_data['override']
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64 except KeyError:
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65 pass
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66 else:
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67 log.debug("writting override file")
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68 override_path = working_dir / "docker-compose.override.yml"
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69 with override_path.open("w") as f:
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70 self._am.dump(override, f)
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71 await async_process.run(
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72 self.docker_compose_path,
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73 "up",
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74 "--detach",
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75 path=str(working_dir),
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76 )
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77
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78 async def stop(self, app_data: dict) -> None:
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79 working_dir = app_data['_instance_dir_path']
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80 await async_process.run(
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81 self.docker_compose_path,
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82 "down",
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83 path=str(working_dir),
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84 )
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85
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86 async def compute_expose(self, app_data: dict) -> dict:
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87 working_dir = app_data['_instance_dir_path']
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88 expose = app_data['expose']
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89 ports = expose.get('ports', {})
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90 for name, port_data in list(ports.items()):
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91 try:
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92 service = port_data['service']
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93 private = port_data['private']
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94 int(private)
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95 except (KeyError, ValueError):
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96 log.warning(
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97 f"invalid value found for {name!r} port in {app_data['_file_path']}")
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98 continue
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99 exposed_port = await async_process.run(
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100 self.docker_compose_path,
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101 "port",
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102 service,
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103 str(private),
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104 path=str(working_dir),
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105 )
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106 exposed_port = exposed_port.decode().strip()
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107 try:
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108 addr, port = exposed_port.split(':')
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109 int(port)
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110 except ValueError:
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111 log.warning(
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112 f"invalid exposed port for {name}, ignoring: {exposed_port!r}")
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113 del ports[name]
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114 else:
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115 ports[name] = exposed_port