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authordermotbradley <dermot_bradley@yahoo.com>2020-08-20 00:18:25 +0100
committerGitHub <noreply@github.com>2020-08-19 18:18:25 -0500
commit79a8ce7e714ae1686c10bff77612eab0f6eccc95 (patch)
tree5bf05e746bb91f6a21bd549a1fc579d2c9cd1940 /cloudinit/distros/alpine.py
parentb749548a9eb43b34cce64f8688107645411abc8c (diff)
downloadvyos-cloud-init-79a8ce7e714ae1686c10bff77612eab0f6eccc95.tar.gz
vyos-cloud-init-79a8ce7e714ae1686c10bff77612eab0f6eccc95.zip
Add Alpine Linux support. (#535)
Add new module cc_apk_configure for creating Alpine /etc/apk/repositories file. Modify cc_ca_certs, cc_ntp, cc_power_state_change, and cc_resolv_conf for Alpine. Add Alpine template files for Chrony and Busybox NTP support. Add Alpine template file for /etc/hosts.
Diffstat (limited to 'cloudinit/distros/alpine.py')
-rw-r--r--cloudinit/distros/alpine.py165
1 files changed, 165 insertions, 0 deletions
diff --git a/cloudinit/distros/alpine.py b/cloudinit/distros/alpine.py
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+# Copyright (C) 2016 Matt Dainty
+# Copyright (C) 2020 Dermot Bradley
+#
+# Author: Matt Dainty <matt@bodgit-n-scarper.com>
+# Author: Dermot Bradley <dermot_bradley@yahoo.com>
+#
+# This file is part of cloud-init. See LICENSE file for license information.
+
+from cloudinit import distros
+from cloudinit import helpers
+from cloudinit import log as logging
+from cloudinit import subp
+from cloudinit import util
+
+from cloudinit.distros.parsers.hostname import HostnameConf
+
+from cloudinit.settings import PER_INSTANCE
+
+LOG = logging.getLogger(__name__)
+
+NETWORK_FILE_HEADER = """\
+# This file is generated from information provided by the datasource. Changes
+# to it will not persist across an instance reboot. To disable cloud-init's
+# network configuration capabilities, write a file
+# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
+# network: {config: disabled}
+
+"""
+
+
+class Distro(distros.Distro):
+ init_cmd = ['rc-service'] # init scripts
+ locale_conf_fn = "/etc/profile.d/locale.sh"
+ network_conf_fn = "/etc/network/interfaces"
+ renderer_configs = {
+ "eni": {"eni_path": network_conf_fn,
+ "eni_header": NETWORK_FILE_HEADER}
+ }
+
+ def __init__(self, name, cfg, paths):
+ distros.Distro.__init__(self, name, cfg, paths)
+ # This will be used to restrict certain
+ # calls from repeatly happening (when they
+ # should only happen say once per instance...)
+ self._runner = helpers.Runners(paths)
+ self.default_locale = 'C.UTF-8'
+ self.osfamily = 'alpine'
+ cfg['ssh_svcname'] = 'sshd'
+
+ def get_locale(self):
+ """The default locale for Alpine Linux is different than
+ cloud-init's DataSource default.
+ """
+ return self.default_locale
+
+ def apply_locale(self, locale, out_fn=None):
+ # Alpine has limited locale support due to musl library limitations
+
+ if not locale:
+ locale = self.default_locale
+ if not out_fn:
+ out_fn = self.locale_conf_fn
+
+ lines = [
+ "#",
+ "# This file is created by cloud-init once per new instance boot",
+ "#",
+ "export CHARSET=UTF-8",
+ "export LANG=%s" % locale,
+ "export LC_COLLATE=C",
+ "",
+ ]
+ util.write_file(out_fn, "\n".join(lines), 0o644)
+
+ def install_packages(self, pkglist):
+ self.update_package_sources()
+ self.package_command('add', pkgs=pkglist)
+
+ def _write_network_config(self, netconfig):
+ return self._supported_write_network_config(netconfig)
+
+ def _bring_up_interfaces(self, device_names):
+ use_all = False
+ for d in device_names:
+ if d == 'all':
+ use_all = True
+ if use_all:
+ return distros.Distro._bring_up_interface(self, '-a')
+ else:
+ return distros.Distro._bring_up_interfaces(self, device_names)
+
+ def _write_hostname(self, your_hostname, out_fn):
+ conf = None
+ try:
+ # Try to update the previous one
+ # so lets see if we can read it first.
+ conf = self._read_hostname_conf(out_fn)
+ except IOError:
+ pass
+ if not conf:
+ conf = HostnameConf('')
+ conf.set_hostname(your_hostname)
+ util.write_file(out_fn, str(conf), 0o644)
+
+ def _read_system_hostname(self):
+ sys_hostname = self._read_hostname(self.hostname_conf_fn)
+ return (self.hostname_conf_fn, sys_hostname)
+
+ def _read_hostname_conf(self, filename):
+ conf = HostnameConf(util.load_file(filename))
+ conf.parse()
+ return conf
+
+ def _read_hostname(self, filename, default=None):
+ hostname = None
+ try:
+ conf = self._read_hostname_conf(filename)
+ hostname = conf.hostname
+ except IOError:
+ pass
+ if not hostname:
+ return default
+ return hostname
+
+ def _get_localhost_ip(self):
+ return "127.0.1.1"
+
+ def set_timezone(self, tz):
+ distros.set_etc_timezone(tz=tz, tz_file=self._find_tz_file(tz))
+
+ def package_command(self, command, args=None, pkgs=None):
+ if pkgs is None:
+ pkgs = []
+
+ cmd = ['apk']
+ # Redirect output
+ cmd.append("--quiet")
+
+ if args and isinstance(args, str):
+ cmd.append(args)
+ elif args and isinstance(args, list):
+ cmd.extend(args)
+
+ if command:
+ cmd.append(command)
+
+ pkglist = util.expand_package_list('%s-%s', pkgs)
+ cmd.extend(pkglist)
+
+ # Allow the output of this to flow outwards (ie not be captured)
+ subp.subp(cmd, capture=False)
+
+ def update_package_sources(self):
+ self._runner.run("update-sources", self.package_command,
+ ["update"], freq=PER_INSTANCE)
+
+ @property
+ def preferred_ntp_clients(self):
+ """Allow distro to determine the preferred ntp client list"""
+ if not self._preferred_ntp_clients:
+ self._preferred_ntp_clients = ['chrony', 'ntp']
+
+ return self._preferred_ntp_clients
+
+# vi: ts=4 expandtab