def main():
"Main executable entry point."
# initial sanity check for correct invocation method
rootcheck()
# drop unprivileged to parse args, etc.
# uidManager saves current real uid/gid which are unprivileged (callers)
# due to suid helper, our current effective uid is 0
# also supports being run by sudo
#
# setuid wrapper has real uid = unpriv, effective uid = 0
# sudo sets real/effective = 0, and sets env vars
# setuid wrapper clears environment, so there wont be any conflict between these two
mockgid = grp.getgrnam('mock').gr_gid
uidManager = setup_uid_manager(mockgid)
# go unpriv only when root to make --help etc work for non-mock users
if os.geteuid() == 0:
uidManager.dropPrivsTemp()
(options, args) = command_parse()
if options.printrootpath or options.list_snapshots:
options.verbose = 0
# config path -- can be overridden on cmdline
config_path = MOCKCONFDIR
if options.configdir:
config_path = options.configdir
config_opts = util.load_config(config_path, options.chroot, uidManager,
__VERSION__, PKGPYTHONDIR)
config_opts['config_path'] = config_path
# cmdline options override config options
util.set_config_opts_per_cmdline(config_opts, options, args)
# allow a different mock group to be specified
if config_opts['chrootgid'] != mockgid:
uidManager.restorePrivs()
os.setgroups((mockgid, config_opts['chrootgid']))
uidManager.dropPrivsTemp()
# verify that our unprivileged uid is in the mock group
groupcheck(uidManager.unprivGid, config_opts['chrootgid'])
# configure logging
setup_logging(config_path, config_opts, options)
# verify that we're not trying to build an arch that we can't
check_arch_combination(config_opts['rpmbuild_arch'], config_opts)
# security cleanup (don't need/want this in the chroot)
if 'SSH_AUTH_SOCK' in os.environ:
del os.environ['SSH_AUTH_SOCK']
# elevate privs
uidManager.become_user_without_push(0, 0)
# do whatever we're here to do
py_version = '{0}.{1}.{2}'.format(*sys.version_info[:3])
log.info("mock.py version %s starting (python version = %s)...",
__VERSION__, py_version)
state = State()
plugins = Plugins(config_opts, state)
# outer buildroot to bootstrap the installation - based on main config with some differences
bootstrap_buildroot = None
if config_opts['use_bootstrap_container']:
# first take a copy of the config so we can make some modifications
bootstrap_buildroot_config = config_opts.copy()
# copy plugins configuration so we get a separate deep copy
bootstrap_buildroot_config['plugin_conf'] = config_opts[
'plugin_conf'].copy() # pylint: disable=no-member
# add '-bootstrap' to the end of the root name
bootstrap_buildroot_config[
'root'] = bootstrap_buildroot_config['root'] + '-bootstrap'
# share a yum cache to save downloading everything twice
bootstrap_buildroot_config['plugin_conf']['yum_cache_opts']['dir'] = \
"%(cache_topdir)s/" + config_opts['root'] + "/%(package_manager)s_cache/"
# we don't want to affect the bootstrap.config['nspawn_args'] array, deep copy
bootstrap_buildroot_config['nspawn_args'] = config_opts.get(
'nspawn_args', []).copy()
# allow bootstrap buildroot to access the network for getting packages
bootstrap_buildroot_config['rpmbuild_networking'] = True
bootstrap_buildroot_config['use_host_resolv'] = True
util.setup_host_resolv(bootstrap_buildroot_config)
# use system_*_command for bootstrapping
bootstrap_buildroot_config['yum_command'] = bootstrap_buildroot_config[
'system_yum_command']
bootstrap_buildroot_config['dnf_command'] = bootstrap_buildroot_config[
'system_dnf_command']
bootstrap_buildroot_state = State(bootstrap=True)
bootstrap_plugins = Plugins(bootstrap_buildroot_config,
bootstrap_buildroot_state)
bootstrap_buildroot = Buildroot(bootstrap_buildroot_config,
uidManager,
bootstrap_buildroot_state,
bootstrap_plugins,
is_bootstrap=True)
# this bit of config is needed after we have created the bootstrap buildroot since we need to
# query pkg_manager to know which manager is in use
bootstrap_buildroot.config[
'chroot_setup_cmd'] = bootstrap_buildroot.pkg_manager.install_command
# override configs for bootstrap_*
for k in bootstrap_buildroot.config.copy():
if "bootstrap_" + k in bootstrap_buildroot.config:
bootstrap_buildroot.config[k] = bootstrap_buildroot_config[
"bootstrap_" + k]
del bootstrap_buildroot.config["bootstrap_" + k]
# this changes config_opts['nspawn_args'], so do it after initializing
# bootstrap chroot to not inherit the changes there
util.setup_host_resolv(config_opts)
buildroot = Buildroot(config_opts, uidManager, state, plugins,
bootstrap_buildroot)
commands = Commands(config_opts, uidManager, plugins, state, buildroot,
bootstrap_buildroot)
if config_opts['use_bootstrap_container']:
bootstrap_buildroot.config[
'chroot_setup_cmd'] = buildroot.pkg_manager.install_command
state.start("run")
if options.printrootpath:
print(buildroot.make_chroot_path(''))
sys.exit(0)
if options.list_snapshots:
plugins.call_hooks('list_snapshots', required=True)
if bootstrap_buildroot is not None:
bootstrap_buildroot.plugins.call_hooks('list_snapshots',
required=True)
sys.exit(0)
# dump configuration to log
log.debug("mock final configuration:")
for k, v in list(config_opts.items()):
log.debug(" %s: %s", k, v)
os.umask(0o02)
os.environ["HOME"] = buildroot.homedir
# New namespace starting from here
unshare_namespace(config_opts)
if config_opts['hostname']:
util.sethostname(config_opts['hostname'])
# set personality (ie. setarch)
util.condPersonality(config_opts['target_arch'])
result = 0
try:
result = run_command(options, args, config_opts, commands, buildroot,
state)
except mockbuild.exception.Error:
result = 1
finally:
buildroot.uid_manager.becomeUser(0, 0)
buildroot.finalize()
if bootstrap_buildroot is not None:
bootstrap_buildroot.finalize()
buildroot.uid_manager.restorePrivs()
return result
def main():
"Main executable entry point."
# initial sanity check for correct invocation method
rootcheck()
# drop unprivileged to parse args, etc.
# uidManager saves current real uid/gid which are unprivileged (callers)
# due to suid helper, our current effective uid is 0
# also supports being run by sudo
#
# setuid wrapper has real uid = unpriv, effective uid = 0
# sudo sets real/effective = 0, and sets env vars
# setuid wrapper clears environment, so there wont be any conflict between these two
mockgid = grp.getgrnam('mock').gr_gid
uidManager = setup_uid_manager(mockgid)
# go unpriv only when root to make --help etc work for non-mock users
if os.geteuid() == 0:
uidManager.dropPrivsTemp()
(options, args) = command_parse()
if options.printrootpath or options.list_snapshots:
options.verbose = 0
# config path -- can be overridden on cmdline
config_path = MOCKCONFDIR
if options.configdir:
config_path = options.configdir
config_opts = util.load_config(config_path, options.chroot, uidManager, __VERSION__, PKGPYTHONDIR)
# cmdline options override config options
util.set_config_opts_per_cmdline(config_opts, options, args)
util.subscription_redhat_init(config_opts)
# allow a different mock group to be specified
if config_opts['chrootgid'] != mockgid:
uidManager.restorePrivs()
os.setgroups((mockgid, config_opts['chrootgid']))
uidManager.dropPrivsTemp()
# verify that our unprivileged uid is in the mock group
groupcheck(uidManager.unprivGid, config_opts['chrootgid'])
# configure logging
setup_logging(config_path, config_opts, options)
# verify that we're not trying to build an arch that we can't
check_arch_combination(config_opts['rpmbuild_arch'], config_opts)
# security cleanup (don't need/want this in the chroot)
if 'SSH_AUTH_SOCK' in os.environ:
del os.environ['SSH_AUTH_SOCK']
# elevate privs
uidManager.become_user_without_push(0, 0)
# do whatever we're here to do
py_version = '{0}.{1}.{2}'.format(*sys.version_info[:3])
log.info("mock.py version %s starting (python version = %s)...",
__VERSION__, py_version)
state = State()
plugins = Plugins(config_opts, state)
# When scrubbing all, we also want to scrub a bootstrap chroot
if options.scrub:
config_opts['use_bootstrap'] = True
# outer buildroot to bootstrap the installation - based on main config with some differences
bootstrap_buildroot = None
if config_opts['use_bootstrap']:
# first take a copy of the config so we can make some modifications
bootstrap_buildroot_config = config_opts.copy()
# copy plugins configuration so we get a separate deep copy
bootstrap_buildroot_config['plugin_conf'] = \
copy.deepcopy(config_opts['plugin_conf']) # pylint: disable=no-member
# add '-bootstrap' to the end of the root name
bootstrap_buildroot_config['root'] = bootstrap_buildroot_config['root'] + '-bootstrap'
# don't share root cache tarball
bootstrap_buildroot_config['plugin_conf']['root_cache_opts']['dir'] = \
"{{cache_topdir}}/" + bootstrap_buildroot_config['root'] + "/root_cache/"
# we don't want to affect the bootstrap.config['nspawn_args'] array, deep copy
bootstrap_buildroot_config['nspawn_args'] = config_opts.get('nspawn_args', []).copy()
# allow bootstrap buildroot to access the network for getting packages
bootstrap_buildroot_config['rpmbuild_networking'] = True
bootstrap_buildroot_config['use_host_resolv'] = True
util.setup_host_resolv(bootstrap_buildroot_config)
# use system_*_command for bootstrapping
bootstrap_buildroot_config['yum_command'] = bootstrap_buildroot_config['system_yum_command']
bootstrap_buildroot_config['dnf_command'] = bootstrap_buildroot_config['system_dnf_command']
# disable updating bootstrap chroot
bootstrap_buildroot_config['update_before_build'] = False
bootstrap_buildroot_state = State(bootstrap=True)
bootstrap_plugins = Plugins(bootstrap_buildroot_config, bootstrap_buildroot_state)
bootstrap_buildroot = Buildroot(bootstrap_buildroot_config,
uidManager, bootstrap_buildroot_state, bootstrap_plugins,
is_bootstrap=True)
# this bit of config is needed after we have created the bootstrap buildroot since we need to
# query pkg_manager to know which manager is in use
bootstrap_buildroot.config['chroot_setup_cmd'] = bootstrap_buildroot.pkg_manager.install_command
# override configs for bootstrap_*
for k in bootstrap_buildroot.config.copy():
if "bootstrap_" + k in bootstrap_buildroot.config:
bootstrap_buildroot.config[k] = bootstrap_buildroot_config["bootstrap_" + k]
del bootstrap_buildroot.config["bootstrap_" + k]
if config_opts['redhat_subscription_required']:
key_dir = '/etc/pki/entitlement'
chroot_dir = bootstrap_buildroot.make_chroot_path(key_dir)
mount_point = BindMountPoint(srcpath=key_dir, bindpath=chroot_dir)
bootstrap_buildroot.mounts.add(mount_point)
# this changes config_opts['nspawn_args'], so do it after initializing
# bootstrap chroot to not inherit the changes there
util.setup_host_resolv(config_opts)
buildroot = Buildroot(config_opts, uidManager, state, plugins, bootstrap_buildroot)
if bootstrap_buildroot is not None:
# add the extra bind mount to the outer chroot
inner_mount = bootstrap_buildroot.make_chroot_path(buildroot.make_chroot_path())
# Hide re-mounted chroot from host by private tmpfs.
buildroot.mounts.managed_mounts.append(
FileSystemMountPoint(filetype='tmpfs',
device='hide_root_in_bootstrap',
path=inner_mount,
options="private"))
buildroot.mounts.managed_mounts.append(
BindMountPoint(buildroot.make_chroot_path(), inner_mount,
recursive=True, options="private"))
signal.signal(signal.SIGTERM, partial(handle_signals, buildroot))
signal.signal(signal.SIGPIPE, partial(handle_signals, buildroot))
signal.signal(signal.SIGHUP, partial(handle_signals, buildroot))
# postprocess option arguments for bootstrap
if options.mode in ['installdeps', 'install']:
args = [buildroot.file_on_cmdline(arg) for arg in args]
log.info("Signal handler active")
commands = Commands(config_opts, uidManager, plugins, state, buildroot, bootstrap_buildroot)
if config_opts['use_bootstrap']:
bootstrap_buildroot.config['chroot_setup_cmd'] = buildroot.pkg_manager.install_command
state.start("run")
if options.printrootpath:
print(buildroot.make_chroot_path(''))
sys.exit(0)
if options.list_snapshots:
plugins.call_hooks('list_snapshots', required=True)
if bootstrap_buildroot is not None:
bootstrap_buildroot.plugins.call_hooks('list_snapshots', required=True)
sys.exit(0)
# dump configuration to log
log.debug("mock final configuration:")
for k, v in list(config_opts.items()):
log.debug(" %s: %s", k, v)
os.umask(0o02)
os.environ["HOME"] = buildroot.homedir
# New namespace starting from here
unshare_namespace(config_opts)
if config_opts['hostname']:
util.sethostname(config_opts['hostname'])
# set personality (ie. setarch)
util.condPersonality(config_opts['target_arch'])
result = 0
try:
result = run_command(options, args, config_opts, commands, buildroot, state)
finally:
buildroot.finalize()
if bootstrap_buildroot is not None:
bootstrap_buildroot.finalize()
return result