def test_run_script_in_chroot(self, mock_chmod, mock_copy, mock_isdir,
mock_exec, mock_makedirs):
bu.run_script_in_chroot('/test/path', 'script_name')
mock_exec.assert_called_with('chroot',
'/test/path',
'/bin/bash',
'-c',
'/script_name',
logged=True)
def do_mkbootstrap(self):
"""Building bootstrap image
Currently supports only Ubuntu-Trusty
Includes the following steps
1) Allocate and configure debootstrap.
2) Install packages
3) Run user-post script(is defined)
4) populate squashfs\init\vmlinuz files
5) create metadata.yaml and pack thats all into tar.gz
"""
LOG.info('--- Building bootstrap image (do_mkbootstrap) ---')
driver_os = self.driver.operating_system
# c_dir = output container directory, where all builded files will
# be stored, before packaging into archive
LOG.debug('Creating bootstrap container folder')
c_dir = bu.mkdtemp_smart(CONF.image_build_dir,
CONF.image_build_suffix + '_container')
try:
chroot = bu.mkdtemp_smart(
CONF.image_build_dir, CONF.image_build_suffix)
self.install_base_os(chroot)
bs_scheme = self.driver.bootstrap_scheme
# init modules, needed for bootstrap. Currently
# we support only one scheme initrd + rootfs + kernel
initrd = filter(lambda x: x.name == 'initrd',
bs_scheme.modules)[0]
rootfs = filter(lambda x: x.name == 'rootfs',
bs_scheme.modules)[0]
metadata = {}
metadata['os'] = driver_os.to_dict()
packages = driver_os.packages
metadata['packages'] = packages
self._set_apt_repos(
chroot, driver_os.repos,
proxies=driver_os.proxies.proxies,
direct_repo_addrs=driver_os.proxies.direct_repo_addr_list)
self._update_metadata_with_repos(
metadata, driver_os.repos)
LOG.debug('Installing packages using apt-get: %s',
' '.join(packages))
# disable hosts/resolv files
bu.propagate_host_resolv_conf(chroot)
if hasattr(bs_scheme, 'certs') and bs_scheme.certs:
bu.copy_update_certs(bs_scheme.certs, chroot)
bu.run_apt_get(chroot, packages=packages,
attempts=CONF.fetch_packages_attempts)
LOG.debug('Post-install OS configuration')
if hasattr(bs_scheme, 'extra_files') and bs_scheme.extra_files:
for extra in bs_scheme.extra_files:
bu.rsync_inject(extra, chroot)
if (hasattr(bs_scheme, 'root_ssh_authorized_file') and
bs_scheme.root_ssh_authorized_file):
LOG.debug('Put ssh auth file %s',
bs_scheme.root_ssh_authorized_file)
auth_file = os.path.join(chroot, 'root/.ssh/authorized_keys')
utils.makedirs_if_not_exists(os.path.dirname(
auth_file), mode=0o700)
shutil.copy(
bs_scheme.root_ssh_authorized_file,
auth_file)
os.chmod(auth_file, 0o700)
# Allow user to drop and run script inside chroot:
if (hasattr(bs_scheme, 'post_script_file') and
bs_scheme.post_script_file):
bu.run_script_in_chroot(
chroot, bs_scheme.post_script_file)
# Save runtime_uuid into bootstrap
bu.dump_runtime_uuid(bs_scheme.uuid,
os.path.join(chroot,
'etc/nailgun-agent/config.yaml'))
# NOTE(sslypushenko) Preferred names in LVM config should updated
# due to point LVM to work only with /dev/mapper folder
bu.override_lvm_config(
chroot,
{'devices': {
'preferred_names': CONF.mpath_lvm_preferred_names}},
lvm_conf_path=CONF.lvm_conf_path)
root = driver_os.get_user_by_name('root')
bu.do_post_inst(chroot,
hashed_root_password=root.hashed_password,
allow_unsigned_file=CONF.allow_unsigned_file,
force_ipv4_file=CONF.force_ipv4_file)
# restore disabled hosts/resolv files
bu.restore_resolv_conf(chroot)
metadata['all_packages'] = bu.get_installed_packages(chroot)
# We need to recompress initramfs with new compression:
bu.recompress_initramfs(
chroot,
compress=initrd.compress_format)
# Bootstrap nodes load the kernel and initramfs via the network,
# therefore remove the kernel and initramfs located in root
# filesystem to make the image smaller (and save the network
# bandwidth and the boot time)
bu.copy_kernel_initramfs(chroot, c_dir, clean=True)
LOG.debug('Making sure there are no running processes '
'inside chroot before trying to umount chroot')
if not bu.stop_chrooted_processes(chroot, signal=signal.SIGTERM):
if not bu.stop_chrooted_processes(
chroot, signal=signal.SIGKILL):
raise errors.UnexpectedProcessError(
'Stopping chrooted processes failed. '
'There are some processes running in chroot %s',
chroot)
bu.run_mksquashfs(
chroot, os.path.join(c_dir, os.path.basename(rootfs.uri)),
rootfs.compress_format)
self.dump_mkbootstrap_meta(metadata, c_dir, bs_scheme)
output = bu.save_bs_container(self.driver.output, c_dir,
bs_scheme.container.format)
LOG.info('--- Building bootstrap image END (do_mkbootstrap) ---')
return output
except Exception as exc:
LOG.error('Failed to build bootstrap image: %s', exc)
raise
finally:
LOG.info('Cleanup chroot')
self.destroy_chroot(chroot)
try:
shutil.rmtree(c_dir)
except OSError:
LOG.debug('Finally: directory %s seems does not exist '
'or can not be removed', c_dir)
def do_mkbootstrap(self):
"""Building bootstrap image
Currently supports only Ubuntu-Trusty
Includes the following steps
1) Allocate and configure debootstrap.
2) Install packages
3) Run user-post script(is defined)
4) populate squashfs\init\vmlinuz files
5) create metadata.yaml and pack thats all into tar.gz
"""
LOG.info('--- Building bootstrap image (do_mkbootstrap) ---')
driver_os = self.driver.operating_system
# c_dir = output container directory, where all builded files will
# be stored, before packaging into archive
LOG.debug('Creating bootstrap container folder')
c_dir = bu.mkdtemp_smart(CONF.image_build_dir,
CONF.image_build_suffix + '_container')
try:
chroot = bu.mkdtemp_smart(CONF.image_build_dir,
CONF.image_build_suffix)
self.install_base_os(chroot)
bs_scheme = self.driver.bootstrap_scheme
# init modules, needed for bootstrap. Currently
# we support only one scheme initrd + rootfs + kernel
initrd = filter(lambda x: x.name == 'initrd', bs_scheme.modules)[0]
rootfs = filter(lambda x: x.name == 'rootfs', bs_scheme.modules)[0]
metadata = {}
metadata['os'] = driver_os.to_dict()
packages = driver_os.packages
metadata['packages'] = packages
self._set_apt_repos(
chroot,
driver_os.repos,
proxies=driver_os.proxies.proxies,
direct_repo_addrs=driver_os.proxies.direct_repo_addr_list)
self._update_metadata_with_repos(metadata, driver_os.repos)
LOG.debug('Installing packages using apt-get: %s',
' '.join(packages))
# disable hosts/resolv files
bu.propagate_host_resolv_conf(chroot)
if hasattr(bs_scheme, 'certs') and bs_scheme.certs:
bu.copy_update_certs(bs_scheme.certs, chroot)
bu.run_apt_get(chroot,
packages=packages,
attempts=CONF.fetch_packages_attempts)
LOG.debug('Post-install OS configuration')
if hasattr(bs_scheme, 'extra_files') and bs_scheme.extra_files:
for extra in bs_scheme.extra_files:
bu.rsync_inject(extra, chroot)
if (hasattr(bs_scheme, 'root_ssh_authorized_file')
and bs_scheme.root_ssh_authorized_file):
LOG.debug('Put ssh auth file %s',
bs_scheme.root_ssh_authorized_file)
auth_file = os.path.join(chroot, 'root/.ssh/authorized_keys')
utils.makedirs_if_not_exists(os.path.dirname(auth_file),
mode=0o700)
shutil.copy(bs_scheme.root_ssh_authorized_file, auth_file)
os.chmod(auth_file, 0o700)
# Allow user to drop and run script inside chroot:
if (hasattr(bs_scheme, 'post_script_file')
and bs_scheme.post_script_file):
bu.run_script_in_chroot(chroot, bs_scheme.post_script_file)
# Save runtime_uuid into bootstrap
bu.dump_runtime_uuid(
bs_scheme.uuid,
os.path.join(chroot, 'etc/nailgun-agent/config.yaml'))
bu.do_post_inst(chroot,
allow_unsigned_file=CONF.allow_unsigned_file,
force_ipv4_file=CONF.force_ipv4_file)
# restore disabled hosts/resolv files
bu.restore_resolv_conf(chroot)
metadata['all_packages'] = bu.get_installed_packages(chroot)
# We need to recompress initramfs with new compression:
bu.recompress_initramfs(chroot, compress=initrd.compress_format)
# Bootstrap nodes load the kernel and initramfs via the network,
# therefore remove the kernel and initramfs located in root
# filesystem to make the image smaller (and save the network
# bandwidth and the boot time)
bu.copy_kernel_initramfs(chroot, c_dir, clean=True)
LOG.debug('Making sure there are no running processes '
'inside chroot before trying to umount chroot')
if not bu.stop_chrooted_processes(chroot, signal=signal.SIGTERM):
if not bu.stop_chrooted_processes(chroot,
signal=signal.SIGKILL):
raise errors.UnexpectedProcessError(
'Stopping chrooted processes failed. '
'There are some processes running in chroot %s',
chroot)
bu.run_mksquashfs(
chroot, os.path.join(c_dir, os.path.basename(rootfs.uri)),
rootfs.compress_format)
self.dump_mkbootstrap_meta(metadata, c_dir, bs_scheme)
output = bu.save_bs_container(self.driver.output, c_dir,
bs_scheme.container.format)
LOG.info('--- Building bootstrap image END (do_mkbootstrap) ---')
return output
except Exception as exc:
LOG.error('Failed to build bootstrap image: %s', exc)
raise
finally:
LOG.info('Cleanup chroot')
self.destroy_chroot(chroot)
try:
shutil.rmtree(c_dir)
except OSError:
LOG.debug(
'Finally: directory %s seems does not exist '
'or can not be removed', c_dir)
def test_run_script_in_chroot(self, mock_chmod, mock_copy, mock_isdir,
mock_exec, mock_makedirs):
bu.run_script_in_chroot('/test/path', 'script_name')
mock_exec.assert_called_with('chroot', '/test/path', '/bin/bash',
'-c', '/script_name', logged=True)