Convert lorax-composer yum base object to DNF
This no longer uses the enabled configuration setting to select repos to use. It uses everything in the repo_dir, and if system repos have not been disabled it copies them into the repo_dir at startup, overwriting the previous copy.
This commit is contained in:
Brian C. Lane
parent
9bf93d7154
commit
25394eefb7
@ -44,8 +44,8 @@ def configure(conf_file="/etc/lorax/composer.conf", root_dir="/", test_config=Fa
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conf.add_section("composer")
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conf.set("composer", "share_dir", os.path.realpath(joinpaths(root_dir, "/usr/share/lorax/")))
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conf.set("composer", "lib_dir", os.path.realpath(joinpaths(root_dir, "/var/lib/lorax/composer/")))
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conf.set("composer", "yum_conf", os.path.realpath(joinpaths(root_dir, "/var/tmp/composer/yum.conf")))
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conf.set("composer", "yum_root", os.path.realpath(joinpaths(root_dir, "/var/tmp/composer/yum/root/")))
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conf.set("composer", "dnf_conf", os.path.realpath(joinpaths(root_dir, "/var/tmp/composer/dnf.conf")))
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conf.set("composer", "dnf_root", os.path.realpath(joinpaths(root_dir, "/var/tmp/composer/dnf/root/")))
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conf.set("composer", "repo_dir", os.path.realpath(joinpaths(root_dir, "/var/tmp/composer/repos.d/")))
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conf.set("composer", "cache_dir", os.path.realpath(joinpaths(root_dir, "/var/tmp/composer/cache/")))
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@ -64,14 +64,14 @@ def configure(conf_file="/etc/lorax/composer.conf", root_dir="/", test_config=Fa
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return conf
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def make_yum_dirs(conf):
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"""Make any missing yum directories
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def make_dnf_dirs(conf):
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"""Make any missing dnf directories
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:param conf: The configuration to use
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:type conf: ComposerConfig
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:returns: None
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"""
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for p in ["yum_conf", "repo_dir", "cache_dir", "yum_root"]:
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for p in ["dnf_conf", "repo_dir", "cache_dir", "dnf_root"]:
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p_dir = os.path.dirname(conf.get("composer", p))
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if not os.path.exists(p_dir):
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os.makedirs(p_dir)
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86
src/pylorax/api/dnfbase.py
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86
src/pylorax/api/dnfbase.py
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@ -0,0 +1,86 @@
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#
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# Copyright (C) 2017-2018 Red Hat, Inc.
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#
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# This program 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 2 of the License, or
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# (at your option) any later version.
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#
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# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# pylint: disable=bad-preconf-access
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import logging
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log = logging.getLogger("lorax-composer")
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import dnf
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import dnf.logging
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from glob import glob
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import os
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import shutil
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def get_base_object(conf):
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"""Get the DNF object with settings from the config file
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:param conf: configuration object
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:type conf: ComposerParser
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:returns: A DNF Base object
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:rtype: dnf.Base
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"""
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cachedir = os.path.abspath(conf.get("composer", "cache_dir"))
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dnfconf = os.path.abspath(conf.get("composer", "dnf_conf"))
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dnfroot = os.path.abspath(conf.get("composer", "dnf_root"))
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repodir = os.path.abspath(conf.get("composer", "repo_dir"))
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# Setup the config for the DNF Base object
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dbo = dnf.Base()
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dbc = dbo.conf
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# TODO - Handle this
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# dbc.logdir = logdir
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dbc.installroot = dnfroot
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if not os.path.isdir(dnfroot):
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os.makedirs(dnfroot)
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dbc.cachedir = cachedir
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dbc.reposdir = [repodir]
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dbc.install_weak_deps = False
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dbc.prepend_installroot('persistdir')
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dbc.tsflags.append('nodocs')
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if conf.get_default("dnf", "proxy", None):
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dbc.proxy = conf.get("dnf", "proxy")
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if conf.has_option("dnf", "sslverify") and not conf.getboolean("dnf", "sslverify"):
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dbc.sslverify = False
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_releasever = conf.get_default("composer", "releasever", None)
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if not _releasever:
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# Use the releasever of the host system
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_releasever = dnf.rpm.detect_releasever("/")
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log.info("releasever = %s", _releasever)
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dbc.releasever = _releasever
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# write the dnf configuration file
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with open(dnfconf, "w") as f:
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f.write(dbc.dump())
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# dnf needs the repos all in one directory, composer uses repodir for this
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# if system repos are supposed to be used, copy them into repodir, overwriting any previous copies
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if not conf.has_option("repos", "use_system_repos") or conf.getboolean("repos", "use_system_repos"):
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for repo_file in glob("/etc/yum.repos.d/*.repo"):
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shutil.copy2(repo_file, repodir)
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dbo.read_all_repos()
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# Update the metadata from the enabled repos to speed up later operations
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log.info("Updating repository metadata")
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dbo.fill_sack(load_system_repo=False)
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dbo.read_comps()
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return dbo
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@ -1,113 +0,0 @@
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#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This program 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 2 of the License, or
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# (at your option) any later version.
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#
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# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# pylint: disable=bad-preconf-access
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import logging
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log = logging.getLogger("lorax-composer")
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import configparser
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from fnmatch import fnmatchcase
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from glob import glob
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import os
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import yum
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# This is a hack to short circuit yum's internal logging
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yum.logginglevels._added_handlers = True
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from pylorax.sysutils import joinpaths
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def get_base_object(conf):
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"""Get the Yum object with settings from the config file
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:param conf: configuration object
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:type conf: ComposerParser
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:returns: A Yum base object
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:rtype: YumBase
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"""
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cachedir = os.path.abspath(conf.get("composer", "cache_dir"))
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yumconf = os.path.abspath(conf.get("composer", "yum_conf"))
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yumroot = os.path.abspath(conf.get("composer", "yum_root"))
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repodir = os.path.abspath(conf.get("composer", "repo_dir"))
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c = configparser.ConfigParser()
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# add the main section
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section = "main"
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data = {"cachedir": cachedir,
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"keepcache": 0,
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"gpgcheck": 0,
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"plugins": 0,
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"assumeyes": 1,
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"reposdir": "",
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"tsflags": "nodocs"}
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if conf.get_default("yum", "proxy", None):
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data["proxy"] = conf.get("yum", "proxy")
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if conf.has_option("yum", "sslverify") and not conf.getboolean("yum", "sslverify"):
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data["sslverify"] = "0"
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c.add_section(section)
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list(map(lambda key_value: c.set(section, key_value[0], key_value[1]), list(data.items())))
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# write the yum configuration file
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with open(yumconf, "w") as f:
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c.write(f)
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# create the yum base object
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yb = yum.YumBase()
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yb.preconf.fn = yumconf
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yb.preconf.root = yumroot
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if not os.path.isdir(yb.preconf.root):
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os.makedirs(yb.preconf.root)
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_releasever = conf.get_default("composer", "releasever", None)
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if not _releasever:
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distroverpkg = ['system-release(releasever)', 'redhat-release']
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# Use yum private function to guess the releasever
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_releasever = yum.config._getsysver("/", distroverpkg)
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log.info("releasever = %s", _releasever)
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yb.preconf.releasever = _releasever
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# Turn on as much yum logging as we can
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yb.preconf.debuglevel = 6
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yb.preconf.errorlevel = 6
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yb.logger.setLevel(logging.DEBUG)
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yb.verbose_logger.setLevel(logging.DEBUG)
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# Gather up all the available repo files, add the ones matching "repos":"enabled" patterns
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enabled_repos = conf.get("repos", "enabled").split(",")
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repo_files = glob(joinpaths(repodir, "*.repo"))
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if not conf.has_option("repos", "use_system_repos") or conf.getboolean("repos", "use_system_repos"):
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repo_files.extend(glob("/etc/yum.repos.d/*.repo"))
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for repo_file in repo_files:
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name = os.path.basename(repo_file)[:-5]
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if any([fnmatchcase(name, pattern) for pattern in enabled_repos]): # pylint: disable=cell-var-from-loop
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yb.getReposFromConfigFile(repo_file)
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# Update the metadata from the enabled repos to speed up later operations
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log.info("Updating yum repository metadata")
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for r in yb.repos.sort():
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r.metadata_expire = 0
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r.mdpolicy = "group:all"
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yb.doRepoSetup()
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yb.repos.doSetup()
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yb.repos.populateSack(mdtype='all', cacheonly=1)
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return yb
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