summaryrefslogtreecommitdiff
path: root/src/conf-mode/vyos-config-host-name.py
diff options
context:
space:
mode:
Diffstat (limited to 'src/conf-mode/vyos-config-host-name.py')
-rwxr-xr-x[-rw-r--r--]src/conf-mode/vyos-config-host-name.py74
1 files changed, 40 insertions, 34 deletions
diff --git a/src/conf-mode/vyos-config-host-name.py b/src/conf-mode/vyos-config-host-name.py
index da053d9f6..2a245b211 100644..100755
--- a/src/conf-mode/vyos-config-host-name.py
+++ b/src/conf-mode/vyos-config-host-name.py
@@ -19,64 +19,70 @@
import os
import re
import sys
+import subprocess
from vyos.config import Config
from vyos.util import ConfigError
-hostname_config = "/etc/hostname"
-mailname_config = "/etc/mailname"
hostname_regex = re.compile("^[A-Za-z0-9][-.A-Za-z0-9]*[A-Za-z0-9]$")
def get_config():
conf = Config()
- conf.set_level("system")
-
- hostname = conf.return_value("host-name")
- domain = conf.return_value("domain-name")
- return {
- "hostname": hostname,
- "domain": domain
- }
+ hostname = conf.return_value("system host-name")
+ domain = conf.return_value("system domain-name")
+
+ # No one likes fixups, but we really don't want VyOS fail to boot
+ # if hostname is not in the config
+ if not hostname:
+ hostname = "vyos"
+
+ if domain:
+ fqdn = "{0}.{1}".format(hostname, domain)
+ else:
+ fqdn = hostname
+
+ return {"hostname": hostname, "domain": domain, "fqdn": fqdn}
def verify(config):
- # check for invalid host
+ # check for invalid host
- # pattern $VAR(@) "^[[:alnum:]][-.[:alnum:]]*[[:alnum:]]$" ; "invalid host name $VAR(@)"
- valid = hostname_regex.match(config.hostname)
- if (!valid):
- raise ConfigError('invalid host name' + config.hostname)
+ # pattern $VAR(@) "^[[:alnum:]][-.[:alnum:]]*[[:alnum:]]$" ; "invalid host name $VAR(@)"
+ if not hostname_regex.match(config["hostname"]):
+ raise ConfigError('Invalid host name ' + config["hostname"])
- # pattern $VAR(@) "^.{1,63}$" ; "invalid host-name length"
- length = len(config.hostname)
- if length < 1 or length > 63:
- raise ConfigError('invalid host-name length')
+ # 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')
- return None
+ return None
def generate(config):
- mailname = config.hostname
- if config.domain != "":
- mailname += '.' + config.domain
+ # read the hosts file
+ with open('/etc/hosts', 'r') as f:
+ hosts = f.read()
- # update /etc/hostname
- with open(hostname_config, 'w') as f:
- f.write(config.hostname)
+ # get the current hostname
+ old_hostname = subprocess.check_output(['hostname']).decode().strip()
- # update /etc/mailname
- with open(mailname_config, 'w') as f:
- f.write(mailname)
+ # 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)
- return None
+ with open('/etc/hosts', 'w') as f:
+ f.write(hosts)
+
+ return None
def apply(config):
- # set hostname for the current session
- cmd = "hostname " + config.hostname
- os.system(cmd)
+ os.system("hostnamectl set-hostname {0}".format(config["fqdn"]))
+
+ # restart services that use the hostname
+ os.system("systemctl restart rsyslog.service")
- return None
+ return None
if __name__ == '__main__':