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author | Scott Moser <smoser@ubuntu.com> | 2015-10-09 12:39:23 -0400 |
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committer | Scott Moser <smoser@ubuntu.com> | 2015-10-09 12:39:23 -0400 |
commit | 86bd318e41b0bec10765d0498a125de062afe1f9 (patch) | |
tree | 9f3e62dc3fea101c91fce794edd90be4ccc1ea75 /cloudinit/config/cc_fan.py | |
parent | e9e86164198993aca13148872afdeebaae751c2c (diff) | |
download | vyos-cloud-init-86bd318e41b0bec10765d0498a125de062afe1f9.tar.gz vyos-cloud-init-86bd318e41b0bec10765d0498a125de062afe1f9.zip |
support configuring and installing the Ubuntu fan driver
#cloud-config
fan:
config: |
# fan 240
10.0.0.0/8 eth0/16 dhcp
10.0.0.0/8 eth1/16 dhcp off
# fan 241
241.0.0.0/8 eth0/16 dhcp
config_path: /etc/network/fan
LP: #1504604
Diffstat (limited to 'cloudinit/config/cc_fan.py')
-rw-r--r-- | cloudinit/config/cc_fan.py | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/cloudinit/config/cc_fan.py b/cloudinit/config/cc_fan.py new file mode 100644 index 00000000..39e3850e --- /dev/null +++ b/cloudinit/config/cc_fan.py @@ -0,0 +1,101 @@ +# vi: ts=4 expandtab +# +# Copyright (C) 2015 Canonical Ltd. +# +# Author: Scott Moser <scott.moser@canonical.com> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +""" +fan module allows configuration of Ubuntu Fan + https://wiki.ubuntu.com/FanNetworking + +Example config: + #cloud-config + fan: + config: | + # fan 240 + 10.0.0.0/8 eth0/16 dhcp + 10.0.0.0/8 eth1/16 dhcp off + # fan 241 + 241.0.0.0/8 eth0/16 dhcp + config_path: /etc/network/fan + +If cloud-init sees a 'fan' entry in cloud-config it will + a.) write 'config_path' with the contents + b.) install the package 'ubuntu-fan' if it is not installed + c.) ensure the service is started (or restarted if was previously running) +""" + +from cloudinit import log as logging +from cloudinit import util +from cloudinit.settings import PER_INSTANCE + +LOG = logging.getLogger(__name__) + +frequency = PER_INSTANCE + +BUILTIN_CFG = { + 'config': None, + 'config_path': '/etc/network/fan', +} + + +def stop_update_start(service, config_file, content, systemd=False): + if systemd: + cmds = {'stop': ['systemctl', 'stop', service], + 'start': ['systemctl', 'start', service], + 'enable': ['systemctl', 'enable', service]} + else: + cmds = {'stop': ['service', 'stop'], + 'start': ['service', 'start']} + + def run(cmd, msg): + try: + return util.subp(cmd, capture=True) + except util.ProcessExecutionError as e: + LOG.warn("failed: %s (%s): %s", service, cmd, e) + return False + + stop_failed = not run(cmds['stop'], msg='stop %s' % service) + if not content.endswith('\n'): + content += '\n' + util.write_file(config_file, content, omode="w") + + ret = run(cmds['start'], msg='start %s' % service) + if ret and stop_failed: + LOG.warn("success: %s started", service) + + if 'enable' in cmds: + ret = run(cmds['enable'], msg='enable %s' % service) + + return ret + + +def handle(name, cfg, cloud, log, args): + cfgin = cfg.get('fan') + if not cfgin: + cfgin = {} + mycfg = util.mergemanydict([cfgin, BUILTIN_CFG]) + + if not mycfg.get('config'): + LOG.debug("%s: no 'fan' config entry. disabling", name) + return + + util.write_file(mycfg.get('config_path'), mycfg.get('config'), omode="w") + distro = cloud.distro + if not util.which('fanctl'): + distro.install_packages(['ubuntu-fan']) + + stop_update_start( + service='ubuntu-fan', config_file=mycfg.get('config_path'), + content=mycfg.get('config'), systemd=distro.uses_systemd()) |