def check_assertions(self):
# Be on stretch (9.x) and yunohost 3.x
# NB : we do both check to cover situations where the upgrade crashed
# in the middle and debian version could be > 9.x but yunohost package
# would still be in 3.x...
if not self.debian_major_version() == 9 \
and not self.yunohost_major_version() == 3:
raise YunohostError("migration_0015_not_stretch")
# Have > 1 Go free space on /var/ ?
if free_space_in_directory("/var/") / (1024**3) < 1.0:
raise YunohostError("migration_0015_not_enough_free_space")
# Check system is up to date
# (but we don't if 'stretch' is already in the sources.list ...
# which means maybe a previous upgrade crashed and we're re-running it)
if " buster " not in read_file("/etc/apt/sources.list"):
tools_update(system=True)
upgradable_system_packages = list(_list_upgradable_apt_packages())
if upgradable_system_packages:
raise YunohostError(
"migration_0015_system_not_fully_up_to_date")
def run(self):
self.check_assertions()
logger.info(m18n.n("migration_0015_start"))
#
# Make sure certificates do not use weak signature hash algorithms (md5, sha1)
# otherwise nginx will later refuse to start which result in
# catastrophic situation
#
self.validate_and_upgrade_cert_if_necessary()
#
# Patch sources.list
#
logger.info(m18n.n("migration_0015_patching_sources_list"))
self.patch_apt_sources_list()
tools_update(system=True)
# Tell libc6 it's okay to restart system stuff during the upgrade
os.system(
"echo 'libc6 libraries/restart-without-asking boolean true' | debconf-set-selections"
)
# Don't send an email to root about the postgresql migration. It should be handled automatically after.
os.system(
"echo 'postgresql-common postgresql-common/obsolete-major seen true' | debconf-set-selections"
)
#
# Specific packages upgrades
#
logger.info(m18n.n("migration_0015_specific_upgrade"))
# Update unscd independently, was 0.53-1+yunohost on stretch (custom build of ours) but now it's 0.53-1+b1 on vanilla buster,
# which for apt appears as a lower version (hence the --allow-downgrades and the hardcoded version number)
unscd_version = check_output(
'dpkg -s unscd | grep "^Version: " | cut -d " " -f 2')
if "yunohost" in unscd_version:
new_version = check_output(
"LC_ALL=C apt policy unscd 2>/dev/null | grep -v '\\*\\*\\*' | grep http -B1 | head -n 1 | awk '{print $1}'"
).strip()
if new_version:
self.apt_install('unscd=%s --allow-downgrades' % new_version)
else:
logger.warning(
"Could not identify which version of unscd to install")
# Upgrade libpam-modules independently, small issue related to willing to overwrite a file previously provided by Yunohost
libpammodules_version = check_output(
'dpkg -s libpam-modules | grep "^Version: " | cut -d " " -f 2')
if not libpammodules_version.startswith("1.3"):
self.apt_install(
'libpam-modules -o Dpkg::Options::="--force-overwrite"')
#
# Main upgrade
#
logger.info(m18n.n("migration_0015_main_upgrade"))
apps_packages = self.get_apps_equivs_packages()
self.hold(apps_packages)
tools_upgrade(system=True, allow_yunohost_upgrade=False)
if self.debian_major_version() == 9:
raise YunohostError(
"migration_0015_still_on_stretch_after_main_upgrade")
# Clean the mess
logger.info(m18n.n("migration_0015_cleaning_up"))
os.system("apt autoremove --assume-yes")
os.system("apt clean --assume-yes")
#
# Yunohost upgrade
#
logger.info(m18n.n("migration_0015_yunohost_upgrade"))
self.unhold(apps_packages)
tools_upgrade(system=True)