224 lines
9.5 KiB
Diff
224 lines
9.5 KiB
Diff
Index: trunk/cloudinit/distros/__init__.py
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===================================================================
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--- trunk.orig/cloudinit/distros/__init__.py
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+++ trunk/cloudinit/distros/__init__.py
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@@ -48,6 +48,7 @@ class Distro(object):
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__metaclass__ = abc.ABCMeta
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default_user = None
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default_user_groups = None
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+ default_hostname_conf_file = '/etc/hostname'
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def __init__(self, name, cfg, paths):
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self._paths = paths
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@@ -95,14 +96,69 @@ class Distro(object):
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def get_option(self, opt_name, default=None):
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return self._cfg.get(opt_name, default)
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- @abc.abstractmethod
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def set_hostname(self, hostname):
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+ conf_file = self.get_option('hostname_conf_file',
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+ default=self.default_hostname_conf_file)
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+ out_fn = self._paths.join(False, conf_file)
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+ self._write_hostname(hostname, out_fn)
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+ if out_fn == conf_file:
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+ # We only do this if we are running in non-adjusted root mode
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+ LOG.debug("Setting hostname to %s", hostname)
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+ util.subp(['hostname', hostname])
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+
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+ def update_hostname(self, hostname, prev_hostname_fn):
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+ conf_file = self.get_option('hostname_conf_file',
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+ default=self.default_hostname_conf_file)
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+ hostname_prev = self._read_hostname(prev_hostname_fn)
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+ read_fn = self._paths.join(True, conf_file)
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+ hostname_in_conf = self._read_hostname(read_fn)
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+ update_files = []
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+ if not hostname_prev or hostname_prev != hostname:
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+ update_files.append(prev_hostname_fn)
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+ if (not hostname_in_conf or
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+ (hostname_in_conf == hostname_prev
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+ and hostname_in_conf != hostname)):
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+ write_fn = self._paths.join(False, conf_file)
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+ update_files.append(write_fn)
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+ for fn in update_files:
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+ try:
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+ self._write_hostname(hostname, fn)
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+ except:
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+ util.logexc(LOG, "Failed to write hostname %s to %s",
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+ hostname, fn)
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+ if (hostname_in_conf and hostname_prev and
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+ hostname_in_conf != hostname_prev):
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+ LOG.debug(("Hostname in %s differs from that in %s; assuming "
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+ "hostname is user-maintained"), prev_hostname_fn, conf_file)
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+ if conf_file in update_files:
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+ # We only do this if we are running in non-adjusted root mode
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+ LOG.debug("Setting hostname to %s", hostname)
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+ util.subp(["hostname", hostname])
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+
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+ @abc.abstractmethod
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+ def _write_hostname(self, hostname, filename):
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raise NotImplementedError()
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+ def _write_bare_hostname(self, hostname, out_fn):
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+ # "" gives trailing newline.
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+ util.write_file(out_fn, "%s\n" % str(hostname), 0644)
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+
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@abc.abstractmethod
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- def update_hostname(self, hostname, prev_hostname_fn):
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+ def _read_hostname(self, filename, default=None):
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raise NotImplementedError()
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+ def _read_bare_hostname(self, filename, default=None):
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+ contents = util.load_file(filename, quiet=True)
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+ for line in contents.splitlines():
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+ c_pos = line.find("#")
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+ # Handle inline comments
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+ if c_pos != -1:
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+ line = line[0:c_pos]
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+ line_c = line.strip()
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+ if line_c:
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+ return line_c
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+ return default
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+
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@abc.abstractmethod
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def package_command(self, cmd, args=None):
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raise NotImplementedError()
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Index: trunk/cloudinit/distros/debian.py
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===================================================================
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--- trunk.orig/cloudinit/distros/debian.py
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+++ trunk/cloudinit/distros/debian.py
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@@ -57,56 +57,11 @@ class Distro(distros.Distro):
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net_fn = self._paths.join(False, "/etc/network/interfaces")
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util.write_file(net_fn, settings)
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- def set_hostname(self, hostname):
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- out_fn = self._paths.join(False, "/etc/hostname")
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- self._write_hostname(hostname, out_fn)
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- if out_fn == '/etc/hostname':
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- # Only do this if we are running in non-adjusted root mode
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- LOG.debug("Setting hostname to %s", hostname)
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- util.subp(['hostname', hostname])
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-
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def _write_hostname(self, hostname, out_fn):
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- # "" gives trailing newline.
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- util.write_file(out_fn, "%s\n" % str(hostname), 0644)
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-
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- def update_hostname(self, hostname, prev_fn):
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- hostname_prev = self._read_hostname(prev_fn)
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- read_fn = self._paths.join(True, "/etc/hostname")
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- hostname_in_etc = self._read_hostname(read_fn)
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- update_files = []
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- if not hostname_prev or hostname_prev != hostname:
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- update_files.append(prev_fn)
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- if (not hostname_in_etc or
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- (hostname_in_etc == hostname_prev and
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- hostname_in_etc != hostname)):
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- write_fn = self._paths.join(False, "/etc/hostname")
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- update_files.append(write_fn)
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- for fn in update_files:
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- try:
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- self._write_hostname(hostname, fn)
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- except:
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- util.logexc(LOG, "Failed to write hostname %s to %s",
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- hostname, fn)
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- if (hostname_in_etc and hostname_prev and
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- hostname_in_etc != hostname_prev):
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- LOG.debug(("%s differs from /etc/hostname."
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- " Assuming user maintained hostname."), prev_fn)
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- if "/etc/hostname" in update_files:
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- # Only do this if we are running in non-adjusted root mode
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- LOG.debug("Setting hostname to %s", hostname)
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- util.subp(['hostname', hostname])
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+ return self._write_bare_hostname(hostname, out_fn)
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def _read_hostname(self, filename, default=None):
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- contents = util.load_file(filename, quiet=True)
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- for line in contents.splitlines():
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- c_pos = line.find("#")
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- # Handle inline comments
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- if c_pos != -1:
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- line = line[0:c_pos]
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- line_c = line.strip()
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- if line_c:
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- return line_c
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- return default
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+ return self._read_bare_hostname(filename, default=default)
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def _get_localhost_ip(self):
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# Note: http://www.leonardoborda.com/blog/127-0-1-1-ubuntu-debian/
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Index: trunk/cloudinit/distros/fedora.py
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===================================================================
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--- trunk.orig/cloudinit/distros/fedora.py
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+++ trunk/cloudinit/distros/fedora.py
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@@ -30,3 +30,10 @@ LOG = logging.getLogger(__name__)
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class Distro(rhel.Distro):
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distro_name = 'fedora'
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default_user = 'ec2-user'
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+ default_hostname_conf_file = '/etc/hostname'
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+
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+ def _write_hostname(self, hostname, out_fn):
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+ return self._write_bare_hostname(hostname, out_fn)
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+
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+ def _read_hostname(self, filename, default=None):
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+ return self._read_bare_hostname(filename, default=default)
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Index: trunk/cloudinit/distros/rhel.py
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===================================================================
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--- trunk.orig/cloudinit/distros/rhel.py
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+++ trunk/cloudinit/distros/rhel.py
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@@ -57,6 +57,7 @@ D_QUOTE_CHARS = {
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class Distro(distros.Distro):
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+ default_hostname_conf_file = '/etc/sysconfig/network'
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def __init__(self, name, cfg, paths):
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distros.Distro.__init__(self, name, cfg, paths)
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@@ -128,14 +129,6 @@ class Distro(distros.Distro):
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if nameservers or searchservers:
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self._write_resolve(nameservers, searchservers)
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- def set_hostname(self, hostname):
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- out_fn = self._paths.join(False, '/etc/sysconfig/network')
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- self._write_hostname(hostname, out_fn)
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- if out_fn == '/etc/sysconfig/network':
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- # Only do this if we are running in non-adjusted root mode
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- LOG.debug("Setting hostname to %s", hostname)
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- util.subp(['hostname', hostname])
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-
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def apply_locale(self, locale, out_fn=None):
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if not out_fn:
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out_fn = self._paths.join(False, '/etc/sysconfig/i18n')
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@@ -151,33 +144,6 @@ class Distro(distros.Distro):
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w_contents = "\n".join(contents.write())
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util.write_file(out_fn, w_contents, 0644)
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- def update_hostname(self, hostname, prev_file):
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- hostname_prev = self._read_hostname(prev_file)
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- read_fn = self._paths.join(True, "/etc/sysconfig/network")
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- hostname_in_sys = self._read_hostname(read_fn)
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- update_files = []
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- if not hostname_prev or hostname_prev != hostname:
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- update_files.append(prev_file)
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- if (not hostname_in_sys or
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- (hostname_in_sys == hostname_prev
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- and hostname_in_sys != hostname)):
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- write_fn = self._paths.join(False, "/etc/sysconfig/network")
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- update_files.append(write_fn)
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- for fn in update_files:
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- try:
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- self._write_hostname(hostname, fn)
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- except:
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- util.logexc(LOG, "Failed to write hostname %s to %s",
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- hostname, fn)
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- if (hostname_in_sys and hostname_prev and
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- hostname_in_sys != hostname_prev):
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- LOG.debug(("%s differs from /etc/sysconfig/network."
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- " Assuming user maintained hostname."), prev_file)
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- if "/etc/sysconfig/network" in update_files:
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- # Only do this if we are running in non-adjusted root mode
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- LOG.debug("Setting hostname to %s", hostname)
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- util.subp(['hostname', hostname])
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-
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def _read_hostname(self, filename, default=None):
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(_exists, contents) = self._read_conf(filename)
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if 'HOSTNAME' in contents:
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