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Diffstat (limited to 'cloudinit/transforms/cc_rightscale_userdata.py')
-rw-r--r-- | cloudinit/transforms/cc_rightscale_userdata.py | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/cloudinit/transforms/cc_rightscale_userdata.py b/cloudinit/transforms/cc_rightscale_userdata.py new file mode 100644 index 00000000..5ed0848f --- /dev/null +++ b/cloudinit/transforms/cc_rightscale_userdata.py @@ -0,0 +1,78 @@ +# vi: ts=4 expandtab +# +# Copyright (C) 2011 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/>. + +## +## The purpose of this script is to allow cloud-init to consume +## rightscale style userdata. rightscale user data is key-value pairs +## in a url-query-string like format. +## +## for cloud-init support, there will be a key named +## 'CLOUD_INIT_REMOTE_HOOK'. +## +## This cloud-config module will +## - read the blob of data from raw user data, and parse it as key/value +## - for each key that is found, download the content to +## the local instance/scripts directory and set them executable. +## - the files in that directory will be run by the user-scripts module +## Therefore, this must run before that. +## +## + +import cloudinit.util as util +from cloudinit.CloudConfig import per_instance +from cloudinit import get_ipath_cur +from urlparse import parse_qs + +frequency = per_instance +my_name = "cc_rightscale_userdata" +my_hookname = 'CLOUD_INIT_REMOTE_HOOK' + + +def handle(_name, _cfg, cloud, log, _args): + try: + ud = cloud.get_userdata_raw() + except: + log.warn("failed to get raw userdata in %s" % my_name) + return + + try: + mdict = parse_qs(ud) + if not my_hookname in mdict: + return + except: + log.warn("failed to urlparse.parse_qa(userdata_raw())") + raise + + scripts_d = get_ipath_cur('scripts') + i = 0 + first_e = None + for url in mdict[my_hookname]: + fname = "%s/rightscale-%02i" % (scripts_d, i) + i = i + 1 + try: + content = util.readurl(url) + util.write_file(fname, content, mode=0700) + except Exception as e: + if not first_e: + first_e = None + log.warn("%s failed to read %s: %s" % (my_name, url, e)) + + if first_e: + raise(e) |