1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
# 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 file is part of cloud-init. See LICENSE file for license information.
"""
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)
# vi: ts=4 expandtab
|
