mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-14 17:20:39 +00:00
363 lines
15 KiB
Python
363 lines
15 KiB
Python
########################################################################
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#
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# (C) 2015, Brian Coca <bcoca@ansible.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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########################################################################
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import errno
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import datetime
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import os
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import tarfile
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import tempfile
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import yaml
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from distutils.version import LooseVersion
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from shutil import rmtree
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from ansible.errors import AnsibleError
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from ansible.module_utils.urls import open_url
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from ansible.playbook.role.requirement import RoleRequirement
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from ansible.galaxy.api import GalaxyAPI
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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class GalaxyRole(object):
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SUPPORTED_SCMS = set(['git', 'hg'])
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META_MAIN = (os.path.join('meta', 'main.yml'), os.path.join('meta', 'main.yaml'))
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META_INSTALL = os.path.join('meta', '.galaxy_install_info')
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ROLE_DIRS = ('defaults', 'files', 'handlers', 'meta', 'tasks', 'templates', 'vars', 'tests')
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def __init__(self, galaxy, name, src=None, version=None, scm=None, path=None):
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self._metadata = None
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self._install_info = None
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self._validate_certs = not galaxy.options.ignore_certs
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display.debug('Validate TLS certificates: %s' % self._validate_certs)
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self.options = galaxy.options
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self.galaxy = galaxy
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self.name = name
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self.version = version
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self.src = src or name
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self.scm = scm
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if path is not None:
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if self.name not in path:
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path = os.path.join(path, self.name)
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self.path = path
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else:
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# use the first path by default
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self.path = os.path.join(galaxy.roles_paths[0], self.name)
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# create list of possible paths
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self.paths = [x for x in galaxy.roles_paths]
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self.paths = [os.path.join(x, self.name) for x in self.paths]
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def __repr__(self):
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"""
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Returns "rolename (version)" if version is not null
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Returns "rolename" otherwise
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"""
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if self.version:
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return "%s (%s)" % (self.name, self.version)
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else:
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return self.name
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def __eq__(self, other):
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return self.name == other.name
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@property
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def metadata(self):
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"""
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Returns role metadata
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"""
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if self._metadata is None:
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for meta_main in self.META_MAIN:
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meta_path = os.path.join(self.path, meta_main)
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if os.path.isfile(meta_path):
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try:
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f = open(meta_path, 'r')
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self._metadata = yaml.safe_load(f)
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except:
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display.vvvvv("Unable to load metadata for %s" % self.name)
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return False
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finally:
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f.close()
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return self._metadata
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@property
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def install_info(self):
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"""
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Returns role install info
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"""
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if self._install_info is None:
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info_path = os.path.join(self.path, self.META_INSTALL)
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if os.path.isfile(info_path):
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try:
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f = open(info_path, 'r')
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self._install_info = yaml.safe_load(f)
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except:
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display.vvvvv("Unable to load Galaxy install info for %s" % self.name)
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return False
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finally:
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f.close()
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return self._install_info
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def _write_galaxy_install_info(self):
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"""
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Writes a YAML-formatted file to the role's meta/ directory
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(named .galaxy_install_info) which contains some information
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we can use later for commands like 'list' and 'info'.
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"""
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info = dict(
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version=self.version,
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install_date=datetime.datetime.utcnow().strftime("%c"),
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)
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if not os.path.exists(os.path.join(self.path, 'meta')):
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os.makedirs(os.path.join(self.path, 'meta'))
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info_path = os.path.join(self.path, self.META_INSTALL)
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with open(info_path, 'w+') as f:
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try:
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self._install_info = yaml.safe_dump(info, f)
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except:
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return False
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return True
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def remove(self):
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"""
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Removes the specified role from the roles path.
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There is a sanity check to make sure there's a meta/main.yml file at this
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path so the user doesn't blow away random directories.
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"""
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if self.metadata:
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try:
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rmtree(self.path)
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return True
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except:
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pass
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return False
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def fetch(self, role_data):
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"""
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Downloads the archived role to a temp location based on role data
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"""
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if role_data:
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# first grab the file and save it to a temp location
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if "github_user" in role_data and "github_repo" in role_data:
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archive_url = 'https://github.com/%s/%s/archive/%s.tar.gz' % (role_data["github_user"], role_data["github_repo"], self.version)
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else:
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archive_url = self.src
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display.display("- downloading role from %s" % archive_url)
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try:
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url_file = open_url(archive_url, validate_certs=self._validate_certs)
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temp_file = tempfile.NamedTemporaryFile(delete=False)
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data = url_file.read()
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while data:
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temp_file.write(data)
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data = url_file.read()
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temp_file.close()
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return temp_file.name
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except Exception as e:
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display.error("failed to download the file: %s" % str(e))
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return False
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def install(self):
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if self.scm:
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# create tar file from scm url
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tmp_file = RoleRequirement.scm_archive_role(keep_scm_meta=self.options.keep_scm_meta, **self.spec)
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elif self.src:
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if os.path.isfile(self.src):
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tmp_file = self.src
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elif '://' in self.src:
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role_data = self.src
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tmp_file = self.fetch(role_data)
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else:
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api = GalaxyAPI(self.galaxy)
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role_data = api.lookup_role_by_name(self.src)
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if not role_data:
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raise AnsibleError("- sorry, %s was not found on %s." % (self.src, api.api_server))
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if role_data.get('role_type') == 'APP':
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# Container Role
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display.warning("%s is a Container App role, and should only be installed using Ansible "
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"Container" % self.name)
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role_versions = api.fetch_role_related('versions', role_data['id'])
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if not self.version:
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# convert the version names to LooseVersion objects
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# and sort them to get the latest version. If there
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# are no versions in the list, we'll grab the head
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# of the master branch
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if len(role_versions) > 0:
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loose_versions = [LooseVersion(a.get('name', None)) for a in role_versions]
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try:
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loose_versions.sort()
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except TypeError:
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raise AnsibleError(
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'Unable to compare role versions (%s) to determine the most recent version due to incompatible version formats. '
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'Please contact the role author to resolve versioning conflicts, or specify an explicit role version to '
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'install.' % ', '.join([v.vstring for v in loose_versions])
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)
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self.version = str(loose_versions[-1])
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elif role_data.get('github_branch', None):
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self.version = role_data['github_branch']
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else:
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self.version = 'master'
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elif self.version != 'master':
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if role_versions and str(self.version) not in [a.get('name', None) for a in role_versions]:
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raise AnsibleError("- the specified version (%s) of %s was not found in the list of available versions (%s)." % (self.version,
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self.name,
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role_versions))
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# check if there's a source link for our role_version
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for role_version in role_versions:
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if role_version['name'] == self.version and 'source' in role_version:
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self.src = role_version['source']
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tmp_file = self.fetch(role_data)
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else:
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raise AnsibleError("No valid role data found")
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if tmp_file:
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display.debug("installing from %s" % tmp_file)
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if not tarfile.is_tarfile(tmp_file):
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raise AnsibleError("the file downloaded was not a tar.gz")
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else:
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if tmp_file.endswith('.gz'):
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role_tar_file = tarfile.open(tmp_file, "r:gz")
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else:
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role_tar_file = tarfile.open(tmp_file, "r")
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# verify the role's meta file
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meta_file = None
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members = role_tar_file.getmembers()
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# next find the metadata file
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for member in members:
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for meta_main in self.META_MAIN:
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if meta_main in member.name:
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# Look for parent of meta/main.yml
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# Due to possibility of sub roles each containing meta/main.yml
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# look for shortest length parent
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meta_parent_dir = os.path.dirname(os.path.dirname(member.name))
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if not meta_file:
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archive_parent_dir = meta_parent_dir
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meta_file = member
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else:
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if len(meta_parent_dir) < len(archive_parent_dir):
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archive_parent_dir = meta_parent_dir
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meta_file = member
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if not meta_file:
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raise AnsibleError("this role does not appear to have a meta/main.yml file.")
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else:
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try:
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self._metadata = yaml.safe_load(role_tar_file.extractfile(meta_file))
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except:
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raise AnsibleError("this role does not appear to have a valid meta/main.yml file.")
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# we strip off any higher-level directories for all of the files contained within
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# the tar file here. The default is 'github_repo-target'. Gerrit instances, on the other
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# hand, does not have a parent directory at all.
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installed = False
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while not installed:
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display.display("- extracting %s to %s" % (self.name, self.path))
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try:
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if os.path.exists(self.path):
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if not os.path.isdir(self.path):
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raise AnsibleError("the specified roles path exists and is not a directory.")
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elif not getattr(self.options, "force", False):
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raise AnsibleError("the specified role %s appears to already exist. Use --force to replace it." % self.name)
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else:
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# using --force, remove the old path
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if not self.remove():
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raise AnsibleError("%s doesn't appear to contain a role.\n please remove this directory manually if you really "
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"want to put the role here." % self.path)
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else:
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os.makedirs(self.path)
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# now we do the actual extraction to the path
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for member in members:
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# we only extract files, and remove any relative path
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# bits that might be in the file for security purposes
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# and drop any containing directory, as mentioned above
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if member.isreg() or member.issym():
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parts = member.name.replace(archive_parent_dir, "", 1).split(os.sep)
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final_parts = []
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for part in parts:
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if part != '..' and '~' not in part and '$' not in part:
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final_parts.append(part)
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member.name = os.path.join(*final_parts)
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role_tar_file.extract(member, self.path)
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# write out the install info file for later use
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self._write_galaxy_install_info()
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installed = True
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except OSError as e:
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error = True
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if e.errno == errno.EACCES and len(self.paths) > 1:
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current = self.paths.index(self.path)
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if len(self.paths) > current:
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self.path = self.paths[current + 1]
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error = False
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if error:
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raise AnsibleError("Could not update files in %s: %s" % (self.path, str(e)))
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# return the parsed yaml metadata
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display.display("- %s was installed successfully" % str(self))
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if not (self.src and os.path.isfile(self.src)):
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try:
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os.unlink(tmp_file)
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except (OSError, IOError) as e:
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display.warning("Unable to remove tmp file (%s): %s" % (tmp_file, str(e)))
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return True
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return False
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@property
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def spec(self):
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"""
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Returns role spec info
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{
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'scm': 'git',
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'src': 'http://git.example.com/repos/repo.git',
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'version': 'v1.0',
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'name': 'repo'
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}
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"""
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return dict(scm=self.scm, src=self.src, version=self.version, name=self.name)
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