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-rwxr-xr-xsrc/conf_mode/host_name.py27
1 files changed, 21 insertions, 6 deletions
diff --git a/src/conf_mode/host_name.py b/src/conf_mode/host_name.py
index 2a245b211..f6d091ac2 100755
--- a/src/conf_mode/host_name.py
+++ b/src/conf_mode/host_name.py
@@ -16,17 +16,26 @@
#
#
+"""
+conf-mode script for 'system host-name' and 'system domain-name'.
+"""
+
import os
import re
import sys
import subprocess
from vyos.config import Config
-from vyos.util import ConfigError
+from vyos import ConfigError
+
+hosts_file = '/etc/hosts'
hostname_regex = re.compile("^[A-Za-z0-9][-.A-Za-z0-9]*[A-Za-z0-9]$")
+local_addr = '127.0.1.1' # NOSONAR
+
def get_config():
+ """Get configuration"""
conf = Config()
hostname = conf.return_value("system host-name")
@@ -44,9 +53,11 @@ def get_config():
return {"hostname": hostname, "domain": domain, "fqdn": fqdn}
+
def verify(config):
+ """Verify configuration"""
# check for invalid host
-
+
# pattern $VAR(@) "^[[:alnum:]][-.[:alnum:]]*[[:alnum:]]$" ; "invalid host name $VAR(@)"
if not hostname_regex.match(config["hostname"]):
raise ConfigError('Invalid host name ' + config["hostname"])
@@ -54,29 +65,33 @@ def verify(config):
# pattern $VAR(@) "^.{1,63}$" ; "invalid host-name length"
length = len(config["hostname"])
if length < 1 or length > 63:
- raise ConfigError('Invalid host-name length, must be less than 63 characters')
+ raise ConfigError(
+ 'Invalid host-name length, must be less than 63 characters')
return None
def generate(config):
+ """Generate configuration files"""
# read the hosts file
- with open('/etc/hosts', 'r') as f:
+ with open(hosts_file, 'r') as f:
hosts = f.read()
# get the current hostname
old_hostname = subprocess.check_output(['hostname']).decode().strip()
# replace the local host line
- hosts = re.sub(r"(127.0.1.1\s+{0}.*)".format(old_hostname), r"127.0.1.1\t{0} # VyOS entry\n".format(config["fqdn"]), hosts)
+ hosts = re.sub(r"({}\s+{}.*)".format(local_addr, old_hostname),
+ r"{}\t{} # VyOS entry\n".format(local_addr, config["fqdn"]), hosts)
- with open('/etc/hosts', 'w') as f:
+ with open(hosts_file, 'w') as f:
f.write(hosts)
return None
def apply(config):
+ """Apply configuration"""
os.system("hostnamectl set-hostname {0}".format(config["fqdn"]))
# restart services that use the hostname