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# vi: ts=4 expandtab
#
# Copyright (C) 2009-2010 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.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/>.
"""
Runcmd
------
**Summary:** run commands
Run arbitrary commands at a rc.local like level with output to the console.
Each item can be either a list or a string. If the item is a list, it will be
properly executed as if passed to ``execve()`` (with the first arg as the
command). If the item is a string, it will be written to a file and interpreted
using ``sh``.
.. note::
all commands must be proper yaml, so you have to quote any characters yaml
would eat (':' can be problematic)
**Internal name:** ``cc_runcmd``
**Module frequency:** per instance
**Supported distros:** all
**Config keys**::
runcmd:
- [ ls, -l, / ]
- [ sh, -xc, "echo $(date) ': hello world!'" ]
- [ sh, -c, echo "=========hello world'=========" ]
- ls -l /root
- [ wget, "http://example.org", -O, /tmp/index.html ]
"""
import os
from cloudinit import util
def handle(name, cfg, cloud, log, _args):
if "runcmd" not in cfg:
log.debug(("Skipping module named %s,"
" no 'runcmd' key in configuration"), name)
return
out_fn = os.path.join(cloud.get_ipath('scripts'), "runcmd")
cmd = cfg["runcmd"]
try:
content = util.shellify(cmd)
util.write_file(out_fn, content, 0o700)
except Exception:
util.logexc(log, "Failed to shellify %s into file %s", cmd, out_fn)
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