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cloud-init.5901
zypp_add_repos.diff
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File zypp_add_repos.diff of Package cloud-init.5901
Index: cloudinit/config/cc_zypp_add_repo.py =================================================================== --- /dev/null +++ cloudinit/config/cc_zypper_add_repo.py @@ -0,0 +1,220 @@ +# +# Copyright (C) 2017 SUSE LLC. +# +# This file is part of cloud-init. See LICENSE file for license information. + +"""zypper_add_repo: Add zyper repositories to the system""" + + +import configobj +import os + + +from cloudinit import log as logging +from cloudinit import util +from cloudinit.config.schema import get_schema_doc +from cloudinit.settings import PER_ALWAYS +from six import string_types +from textwrap import dedent + +distros = ['opensuse', 'sles'] + +schema = { + 'id': 'cc_zypper_add_repo', + 'name': 'ZypperAddRepo', + 'title': 'Configure zypper behavior and add zypper repositories', + 'description': dedent("""\ + Configure zypper behavior by modifying /etc/zypp/zypp.conf. The + configuration writer is "dumb" and will simply append the provided + configuration options to the configuration file. Option settings + that may be duplicate will be resolved by the way the zypp.conf file + is parsed. The file is in INI format. + Add repositories to the system. No validation is performed on the + repository file entries, it is assumed the user is familiar with + the zypper repository file format."""), + 'distros': distros, + 'examples': [dedent("""\ + zypper: + repos: + - id: opensuse-oss + name: os-oss + baseurl: http://dl.opensuse.org/dist/leap/v/repo/oss/ + enabled: 1 + autorefresh: 1 + - id: opensuse-oss-update + name: os-oss-up + baseurl: http://dl.opensuse.org/dist/leap/v/update + # any setting per + # https://en.opensuse.org/openSUSE:Standards_RepoInfo + # enable and autorefresh are on by default + config: + reposdir: /etc/zypp/repos.dir + servicesdir: /etc/zypp/services.d + download.use_deltarpm: true + # any setting in /etc/zypp/zypp.conf + """)], + 'frequency': PER_ALWAYS, + 'type': 'object', + 'properties': { + 'zypper': { + 'type': 'object', + 'properties': { + 'repos': { + 'type': 'array', + 'items': { + 'type': 'object', + 'properties': { + 'id': { + 'type': 'string', + 'description': dedent("""\ + The unique id of the repo, used when + writing + /etc/zypp/repos.d/<id>.repo.""") + }, + 'baseurl': { + 'type': 'string', + 'format': 'uri', # built-in format type + 'description': 'The base repositoy URL' + } + }, + 'required': ['id', 'baseurl'], + 'additionalProperties': True + }, + 'minItems': 1 + }, + 'config': { + 'type': 'object', + 'description': dedent("""\ + Any supported zypo.conf key is written to + /etc/zypp/zypp.conf'""") + } + }, + 'required': [], + 'minProperties': 1, # Either config or repo must be provided + 'additionalProperties': False, # only repos and config allowed + } + } +} + +__doc__ = get_schema_doc(schema) # Supplement python help() + +LOG = logging.getLogger(__name__) + + +def _canonicalize_id(repo_id): + repo_id = repo_id.replace(" ", "_") + return repo_id + + +def _format_repo_value(val): + if isinstance(val, bool): + # zypp prefers 1/0 + return 1 if val else 0 + if isinstance(val, (list, tuple)): + return "\n ".join([_format_repo_value(v) for v in val]) + if not isinstance(val, string_types): + return str(val) + return val + + +def _format_repository_config(repo_id, repo_config): + to_be = configobj.ConfigObj() + to_be[repo_id] = {} + # Do basic translation of the items -> values + for (k, v) in repo_config.items(): + # For now assume that people using this know the format + # of zypper repos and don't verify keys/values further + to_be[repo_id][k] = _format_repo_value(v) + lines = to_be.write() + return "\n".join(lines) + + +def _write_repos(repos, repo_base_path): + """Write the user-provided repo definition files + @param repos: A list of repo dictionary objects provided by the user's + cloud config. + @param repo_base_path: The directory path to which repo definitions are + written. + """ + + if not repos: + return + valid_repos = {} + for index, user_repo_config in enumerate(repos): + # Skip on absent required keys + missing_keys = set(['id', 'baseurl']).difference(set(user_repo_config)) + if missing_keys: + LOG.warning( + "Repo config at index %d is missing required config keys: %s", + index, ",".join(missing_keys)) + continue + repo_id = user_repo_config.get('id') + canon_repo_id = _canonicalize_id(repo_id) + repo_fn_pth = os.path.join(repo_base_path, "%s.repo" % (canon_repo_id)) + if os.path.exists(repo_fn_pth): + LOG.info("Skipping repo %s, file %s already exists!", + repo_id, repo_fn_pth) + continue + elif repo_id in valid_repos: + LOG.info("Skipping repo %s, file %s already pending!", + repo_id, repo_fn_pth) + continue + + # Do some basic key formatting + repo_config = dict( + (k.lower().strip().replace("-", "_"), v) + for k, v in user_repo_config.items() + if k and k != 'id') + + # Set defaults if not present + for field in ['enabled', 'autorefresh']: + if field not in repo_config: + repo_config[field] = '1' + + valid_repos[repo_id] = (repo_fn_pth, repo_config) + + for (repo_id, repo_data) in valid_repos.items(): + repo_blob = _format_repository_config(repo_id, repo_data[-1]) + util.write_file(repo_data[0], repo_blob) + + +def _write_zypp_config(zypper_config): + """Write to the default zypp configuration file /etc/zypp/zypp.conf""" + if not zypper_config: + return + zypp_config = '/etc/zypp/zypp.conf' + zypp_conf_content = util.load_file(zypp_config) + new_settings = ['# Added via cloud.cfg'] + for setting, value in zypper_config.items(): + if setting == 'configdir': + msg = 'Changing the location of the zypper configuration is ' + msg += 'not supported, skipping "configdir" setting' + LOG.warning(msg) + continue + if value: + new_settings.append('%s=%s' % (setting, value)) + if len(new_settings) > 1: + new_config = zypp_conf_content + '\n'.join(new_settings) + else: + new_config = zypp_conf_content + util.write_file(zypp_config, new_config) + + +def handle(name, cfg, _cloud, log, _args): + zypper_section = cfg.get('zypper') + if not zypper_section: + LOG.debug(("Skipping module named %s," + " no 'zypper' relevant configuration found"), name) + return + repos = zypper_section.get('repos') + if not repos: + LOG.debug(("Skipping module named %s," + " no 'repos' configuration found"), name) + return + zypper_config = zypper_section.get('config', {}) + repo_base_path = zypper_config.get('reposdir', '/etc/zypp/repos.d/') + + _write_zypp_config(zypper_config) + _write_repos(repos, repo_base_path) + +# vi: ts=4 expandtab Index: doc/examples/cloud-config-zypp-repo.txt =================================================================== --- /dev/null +++ doc/examples/cloud-config-zypp-repo.txt @@ -0,0 +1,18 @@ +#cloud-config +# vim: syntax=yaml +# +# Add zypper repository configuration to the system +# +# The following example adds the file /etc/zypp/repos.d/Test_Repo.repo +# which can then subsequently be used by zypper for later operations. +zypp_repos: + # The name of the repository + "Test Repo": + # Any repository configuration options + name: Extra Packages for Testing + enabled: true + autorefresh: true + keeppackages: false + baseurl: http://download.example.com/ibs/TEST/1.0/standard/ + gpgcheck: true + gpgkey: http://download.example.com/ibs/TEST/1.0/standard/repodata/repomd.xml.key
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