def _disable_ipv6_on_system(self, root):
"""Disable ipv6 on target system.
:param root: path to the root of the target system
:type root: str
"""
fpath = os.path.normpath(root + self.ANACONDA_SYSCTL_FILE_PATH)
try:
with open(fpath, "a") as f:
f.write("# Anaconda disabling ipv6 (noipv6 option)\n")
f.write("net.ipv6.conf.all.disable_ipv6=1\n")
f.write("net.ipv6.conf.default.disable_ipv6=1\n")
except OSError as e:
msg = "Cannot disable ipv6 on the system: {}".format(e.strerror)
raise NetworkInstallationError(msg) from e
def _write_config_file(root, path, content, error_msg, overwrite):
"""Write content into config file on the target system.
:param root: path to the root of the target system
:type root: str
:param path: config file path in target system root
:type path: str
:param content: content to be written into config file
:type content: str
:param error_msg: error message in case of failure
:type error_msg: str
:param overwrite: overwrite existing configuration file
:type overwrite: bool
"""
fpath = os.path.normpath(root + path)
if os.path.isfile(fpath) and not overwrite:
return
try:
with open(fpath, "w") as fobj:
fobj.write(content)
except OSError as e:
msg = "{}: {}".format(error_msg, e.strerror)
raise NetworkInstallationError(msg) from e