def welcome_format(action):
tpl_params = {
'version': version.version_string(),
'uptime': util.uptime(),
'timestamp': util.time_rfc2822(),
'action': action,
}
return templater.render_string(WELCOME_MSG_TPL, tpl_params)
def _get_incarnation_no(self):
"""
use the time passed as the incarnation number.
the incarnation number is the number which are used to
distinguish the old data stored in kvp and the new data.
"""
uptime_str = util.uptime()
try:
return int(time.time() - float(uptime_str))
except ValueError:
LOG.warning("uptime '%s' not in correct format.", uptime_str)
return 0
def _truncate_guest_pool_file(cls, kvp_file):
"""
Truncate the pool file if it has not been truncated since boot.
This should be done exactly once for the file indicated by
KVP_POOL_FILE_GUEST constant above. This method takes a filename
so that we can use an arbitrary file during unit testing.
Since KVP is a best-effort telemetry channel we only attempt to
truncate the file once and only if the file has not been modified
since boot. Additional truncation can lead to loss of existing
KVPs.
"""
if cls._already_truncated_pool_file:
return
boot_time = time.time() - float(util.uptime())
try:
if os.path.getmtime(kvp_file) < boot_time:
with open(kvp_file, "w"):
pass
except (OSError, IOError) as e:
LOG.warning("failed to truncate kvp pool file, %s", e)
finally:
cls._already_truncated_pool_file = True
def _truncate_guest_pool_file(cls, kvp_file):
"""
Truncate the pool file if it has not been truncated since boot.
This should be done exactly once for the file indicated by
KVP_POOL_FILE_GUEST constant above. This method takes a filename
so that we can use an arbitrary file during unit testing.
Since KVP is a best-effort telemetry channel we only attempt to
truncate the file once and only if the file has not been modified
since boot. Additional truncation can lead to loss of existing
KVPs.
"""
if cls._already_truncated_pool_file:
return
boot_time = time.time() - float(util.uptime())
try:
if os.path.getmtime(kvp_file) < boot_time:
with open(kvp_file, "w"):
pass
except (OSError, IOError) as e:
LOG.warning("failed to truncate kvp pool file, %s", e)
finally:
cls._already_truncated_pool_file = True
def handle(_name, cfg, cloud, log, args):
msg_in = ''
if len(args) != 0:
msg_in = str(args[0])
else:
msg_in = util.get_cfg_option_str(cfg, "final_message", "")
msg_in = msg_in.strip()
if not msg_in:
msg_in = FINAL_MESSAGE_DEF
uptime = util.uptime()
ts = util.time_rfc2822()
cver = version.version_string()
try:
subs = {
'uptime': uptime,
'timestamp': ts,
'version': cver,
'datasource': str(cloud.datasource),
}
subs.update(dict([(k.upper(), v) for k, v in subs.items()]))
util.multi_log("%s\n" % (templater.render_string(msg_in, subs)),
console=False,
stderr=True,
log=log)
except Exception:
util.logexc(log, "Failed to render final message template")
boot_fin_fn = cloud.paths.boot_finished
try:
contents = "%s - %s - v. %s\n" % (uptime, ts, cver)
util.write_file(boot_fin_fn, contents)
except Exception:
util.logexc(log, "Failed to write boot finished file %s", boot_fin_fn)
if cloud.datasource.is_disconnected:
log.warn("Used fallback datasource")
def handle(_name, cfg, cloud, log, args):
msg_in = ''
if len(args) != 0:
msg_in = str(args[0])
else:
msg_in = util.get_cfg_option_str(cfg, "final_message", "")
msg_in = msg_in.strip()
if not msg_in:
msg_in = FINAL_MESSAGE_DEF
uptime = util.uptime()
ts = util.time_rfc2822()
cver = version.version_string()
try:
subs = {
'uptime': uptime,
'timestamp': ts,
'version': cver,
'datasource': str(cloud.datasource),
}
subs.update(dict([(k.upper(), v) for k, v in subs.items()]))
util.multi_log("%s\n" % (templater.render_string(msg_in, subs)),
console=False, stderr=True, log=log)
except Exception:
util.logexc(log, "Failed to render final message template")
boot_fin_fn = cloud.paths.boot_finished
try:
contents = "%s - %s - v. %s\n" % (uptime, ts, cver)
util.write_file(boot_fin_fn, contents)
except Exception:
util.logexc(log, "Failed to write boot finished file %s", boot_fin_fn)
if cloud.datasource.is_disconnected:
log.warn("Used fallback datasource")
def welcome_format(action):
return WELCOME_MSG_TPL.format(version=version.version_string(),
uptime=util.uptime(),
timestamp=util.time_rfc2822(),
action=action)
def get_boot_telemetry():
"""Report timestamps related to kernel initialization and systemd
activation of cloud-init"""
if not distros.uses_systemd():
raise RuntimeError("distro not using systemd, skipping boot telemetry")
LOG.debug("Collecting boot telemetry")
try:
kernel_start = float(time.time()) - float(util.uptime())
except ValueError:
raise RuntimeError("Failed to determine kernel start timestamp")
try:
out, _ = util.subp(
['/bin/systemctl', 'show', '-p', 'UserspaceTimestampMonotonic'],
capture=True)
tsm = None
if out and '=' in out:
tsm = out.split("=")[1]
if not tsm:
raise RuntimeError("Failed to parse "
"UserspaceTimestampMonotonic from systemd")
user_start = kernel_start + (float(tsm) / 1000000)
except util.ProcessExecutionError as e:
raise RuntimeError("Failed to get UserspaceTimestampMonotonic: %s" % e)
except ValueError as e:
raise RuntimeError("Failed to parse "
"UserspaceTimestampMonotonic from systemd: %s" % e)
try:
out, _ = util.subp([
'/bin/systemctl', 'show', 'cloud-init-local', '-p',
'InactiveExitTimestampMonotonic'
],
capture=True)
tsm = None
if out and '=' in out:
tsm = out.split("=")[1]
if not tsm:
raise RuntimeError("Failed to parse "
"InactiveExitTimestampMonotonic from systemd")
cloudinit_activation = kernel_start + (float(tsm) / 1000000)
except util.ProcessExecutionError as e:
raise RuntimeError("Failed to get InactiveExitTimestampMonotonic: %s" %
e)
except ValueError as e:
raise RuntimeError("Failed to parse "
"InactiveExitTimestampMonotonic from systemd: %s" %
e)
evt = events.ReportingEvent(
BOOT_EVENT_TYPE, 'boot-telemetry',
"kernel_start=%s user_start=%s cloudinit_activation=%s" %
(datetime.utcfromtimestamp(kernel_start).isoformat() + 'Z',
datetime.utcfromtimestamp(user_start).isoformat() + 'Z',
datetime.utcfromtimestamp(cloudinit_activation).isoformat() + 'Z'),
events.DEFAULT_EVENT_ORIGIN)
events.report_event(evt)
# return the event for unit testing purpose
return evt
def welcome_format(action):
return WELCOME_MSG_TPL.format(
version=version.version_string(),
uptime=util.uptime(),
timestamp=util.time_rfc2822(),
action=action)
