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"""Module for detecting the existence of cloud-init"""
import subprocess
import azurelinuxagent.common.logger as logger
def _cloud_init_is_enabled_systemd():
"""
Determine whether or not cloud-init is enabled on a systemd machine.
Args:
None
Returns:
bool: True if cloud-init is enabled, False if otherwise.
"""
try:
systemctl_output = subprocess.check_output([
'systemctl',
'is-enabled',
'cloud-init-local.service'
], stderr=subprocess.STDOUT).decode('utf-8').replace('\n', '')
unit_is_enabled = systemctl_output == 'enabled'
# pylint: disable=broad-except
except Exception as exc:
logger.info('Unable to get cloud-init enabled status from systemctl: {0}'.format(exc))
unit_is_enabled = False
return unit_is_enabled
def _cloud_init_is_enabled_service():
"""
Determine whether or not cloud-init is enabled on a non-systemd machine.
Args:
None
Returns:
bool: True if cloud-init is enabled, False if otherwise.
"""
try:
subprocess.check_output([
'service',
'cloud-init',
'status'
], stderr=subprocess.STDOUT)
unit_is_enabled = True
# pylint: disable=broad-except
except Exception as exc:
logger.info('Unable to get cloud-init enabled status from service: {0}'.format(exc))
unit_is_enabled = False
return unit_is_enabled
def cloud_init_is_enabled():
"""
Determine whether or not cloud-init is enabled.
Args:
None
Returns:
bool: True if cloud-init is enabled, False if otherwise.
"""
unit_is_enabled = _cloud_init_is_enabled_systemd() or _cloud_init_is_enabled_service()
logger.info('cloud-init is enabled: {0}'.format(unit_is_enabled))
return unit_is_enabled
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