diff options
Diffstat (limited to 'src/conf_mode/host_name.py')
| -rwxr-xr-x | src/conf_mode/host_name.py | 27 |
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 |