diff options
Diffstat (limited to 'cloudinit/config/cc_grub_dpkg.py')
| -rw-r--r-- | cloudinit/config/cc_grub_dpkg.py | 54 |
1 files changed, 32 insertions, 22 deletions
diff --git a/cloudinit/config/cc_grub_dpkg.py b/cloudinit/config/cc_grub_dpkg.py index eb03c664..ad7243d9 100644 --- a/cloudinit/config/cc_grub_dpkg.py +++ b/cloudinit/config/cc_grub_dpkg.py @@ -43,11 +43,10 @@ seeded with empty values, and install_devices_empty is set to true. import os -from cloudinit import subp -from cloudinit import util +from cloudinit import subp, util from cloudinit.subp import ProcessExecutionError -distros = ['ubuntu', 'debian'] +distros = ["ubuntu", "debian"] def fetch_idevs(log): @@ -60,8 +59,9 @@ def fetch_idevs(log): try: # get the root disk where the /boot directory resides. - disk = subp.subp(['grub-probe', '-t', 'disk', '/boot'], - capture=True)[0].strip() + disk = subp.subp(["grub-probe", "-t", "disk", "/boot"], capture=True)[ + 0 + ].strip() except ProcessExecutionError as e: # grub-common may not be installed, especially on containers # FileNotFoundError is a nested exception of ProcessExecutionError @@ -81,26 +81,30 @@ def fetch_idevs(log): if not disk or not os.path.exists(disk): # If we failed to detect a disk, we can return early - return '' + return "" try: # check if disk exists and use udevadm to fetch symlinks - devices = subp.subp( - ['udevadm', 'info', '--root', '--query=symlink', disk], - capture=True - )[0].strip().split() + devices = ( + subp.subp( + ["udevadm", "info", "--root", "--query=symlink", disk], + capture=True, + )[0] + .strip() + .split() + ) except Exception: util.logexc( log, "udevadm DEVLINKS symlink query failed for disk='%s'", disk ) - log.debug('considering these device symlinks: %s', ','.join(devices)) + log.debug("considering these device symlinks: %s", ",".join(devices)) # filter symlinks for /dev/disk/by-id entries - devices = [dev for dev in devices if 'disk/by-id' in dev] - log.debug('filtered to these disk/by-id symlinks: %s', ','.join(devices)) + devices = [dev for dev in devices if "disk/by-id" in dev] + log.debug("filtered to these disk/by-id symlinks: %s", ",".join(devices)) # select first device if there is one, else fall back to plain name idevs = sorted(devices)[0] if devices else disk - log.debug('selected %s', idevs) + log.debug("selected %s", idevs) return idevs @@ -111,14 +115,15 @@ def handle(name, cfg, _cloud, log, _args): if not mycfg: mycfg = {} - enabled = mycfg.get('enabled', True) + enabled = mycfg.get("enabled", True) if util.is_false(enabled): log.debug("%s disabled by config grub_dpkg/enabled=%s", name, enabled) return idevs = util.get_cfg_option_str(mycfg, "grub-pc/install_devices", None) idevs_empty = util.get_cfg_option_str( - mycfg, "grub-pc/install_devices_empty", None) + mycfg, "grub-pc/install_devices_empty", None + ) if idevs is None: idevs = fetch_idevs(log) @@ -128,16 +133,21 @@ def handle(name, cfg, _cloud, log, _args): # now idevs and idevs_empty are set to determined values # or, those set by user - dconf_sel = (("grub-pc grub-pc/install_devices string %s\n" - "grub-pc grub-pc/install_devices_empty boolean %s\n") % - (idevs, idevs_empty)) + dconf_sel = ( + "grub-pc grub-pc/install_devices string %s\n" + "grub-pc grub-pc/install_devices_empty boolean %s\n" + % (idevs, idevs_empty) + ) - log.debug("Setting grub debconf-set-selections with '%s','%s'" % - (idevs, idevs_empty)) + log.debug( + "Setting grub debconf-set-selections with '%s','%s'" + % (idevs, idevs_empty) + ) try: - subp.subp(['debconf-set-selections'], dconf_sel) + subp.subp(["debconf-set-selections"], dconf_sel) except Exception: util.logexc(log, "Failed to run debconf-set-selections for grub-dpkg") + # vi: ts=4 expandtab |