From 4d74f499a0257a4f27f7def4b76402bcbde63567 Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Fri, 15 Jun 2012 17:35:07 -0700 Subject: Moved the handlers from a user_data directory to a handler directory. --- cloudinit/handlers/__init__.py | 221 ----------------------------------------- 1 file changed, 221 deletions(-) delete mode 100644 cloudinit/handlers/__init__.py (limited to 'cloudinit/handlers/__init__.py') diff --git a/cloudinit/handlers/__init__.py b/cloudinit/handlers/__init__.py deleted file mode 100644 index 5d70ac43..00000000 --- a/cloudinit/handlers/__init__.py +++ /dev/null @@ -1,221 +0,0 @@ -# vi: ts=4 expandtab -# -# Copyright (C) 2008-2010 Canonical Ltd. -# Copyright (C) 2012 Hewlett-Packard Development Company, L.P. -# -# Author: Chuck Short -# Author: Juerg Haefliger -# -# 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 . -# - -import os -import subprocess -import sys -import time -import traceback - -import yaml - -from cloudinit.settings import (PER_INSTANCE, PER_ALWAYS, PER_ONCE) - -from cloudinit import log as logging -from cloudinit import util - -LOG = logging.getLogger(__name__) - -DEF_HANDLER_VERSION = 1 -DEF_FREQ = PER_INSTANCE - - -# reads a cloudconfig module list, returns -# a 2 dimensional array suitable to pass to run_cc_modules -def read_cc_modules(cfg, name): - if name not in cfg: - return([]) - module_list = [] - # create 'module_list', an array of arrays - # where array[0] = config - # array[1] = freq - # array[2:] = arguemnts - for item in cfg[name]: - if isinstance(item, str): - module_list.append((item,)) - elif isinstance(item, list): - module_list.append(item) - else: - raise TypeError("failed to read '%s' item in config") - return(module_list) - - -def run_cc_modules(cc, module_list, log): - failures = [] - for cfg_mod in module_list: - name = cfg_mod[0] - freq = None - run_args = [] - if len(cfg_mod) > 1: - freq = cfg_mod[1] - if len(cfg_mod) > 2: - run_args = cfg_mod[2:] - - try: - log.debug("handling %s with freq=%s and args=%s" % - (name, freq, run_args)) - cc.handle(name, run_args, freq=freq) - except: - log.warn(traceback.format_exc()) - log.error("config handling of %s, %s, %s failed\n" % - (name, freq, run_args)) - failures.append(name) - - return(failures) - - -# always returns well formated values -# cfg is expected to have an entry 'output' in it, which is a dictionary -# that includes entries for 'init', 'config', 'final' or 'all' -# init: /var/log/cloud.out -# config: [ ">> /var/log/cloud-config.out", /var/log/cloud-config.err ] -# final: -# output: "| logger -p" -# error: "> /dev/null" -# this returns the specific 'mode' entry, cleanly formatted, with value -# None if if none is given -def get_output_cfg(cfg, mode="init"): - ret = [None, None] - if not 'output' in cfg: - return ret - - outcfg = cfg['output'] - if mode in outcfg: - modecfg = outcfg[mode] - else: - if 'all' not in outcfg: - return ret - # if there is a 'all' item in the output list - # then it applies to all users of this (init, config, final) - modecfg = outcfg['all'] - - # if value is a string, it specifies stdout and stderr - if isinstance(modecfg, str): - ret = [modecfg, modecfg] - - # if its a list, then we expect (stdout, stderr) - if isinstance(modecfg, list): - if len(modecfg) > 0: - ret[0] = modecfg[0] - if len(modecfg) > 1: - ret[1] = modecfg[1] - - # if it is a dictionary, expect 'out' and 'error' - # items, which indicate out and error - if isinstance(modecfg, dict): - if 'output' in modecfg: - ret[0] = modecfg['output'] - if 'error' in modecfg: - ret[1] = modecfg['error'] - - # if err's entry == "&1", then make it same as stdout - # as in shell syntax of "echo foo >/dev/null 2>&1" - if ret[1] == "&1": - ret[1] = ret[0] - - swlist = [">>", ">", "|"] - for i in range(len(ret)): - if not ret[i]: - continue - val = ret[i].lstrip() - found = False - for s in swlist: - if val.startswith(s): - val = "%s %s" % (s, val[len(s):].strip()) - found = True - break - if not found: - # default behavior is append - val = "%s %s" % (">>", val.strip()) - ret[i] = val - - return(ret) - - -# redirect_output(outfmt, errfmt, orig_out, orig_err) -# replace orig_out and orig_err with filehandles specified in outfmt or errfmt -# fmt can be: -# > FILEPATH -# >> FILEPATH -# | program [ arg1 [ arg2 [ ... ] ] ] -# -# with a '|', arguments are passed to shell, so one level of -# shell escape is required. -def redirect_output(outfmt, errfmt, o_out=sys.stdout, o_err=sys.stderr): - if outfmt: - (mode, arg) = outfmt.split(" ", 1) - if mode == ">" or mode == ">>": - owith = "ab" - if mode == ">": - owith = "wb" - new_fp = open(arg, owith) - elif mode == "|": - proc = subprocess.Popen(arg, shell=True, stdin=subprocess.PIPE) - new_fp = proc.stdin - else: - raise TypeError("invalid type for outfmt: %s" % outfmt) - - if o_out: - os.dup2(new_fp.fileno(), o_out.fileno()) - if errfmt == outfmt: - os.dup2(new_fp.fileno(), o_err.fileno()) - return - - if errfmt: - (mode, arg) = errfmt.split(" ", 1) - if mode == ">" or mode == ">>": - owith = "ab" - if mode == ">": - owith = "wb" - new_fp = open(arg, owith) - elif mode == "|": - proc = subprocess.Popen(arg, shell=True, stdin=subprocess.PIPE) - new_fp = proc.stdin - else: - raise TypeError("invalid type for outfmt: %s" % outfmt) - - if o_err: - os.dup2(new_fp.fileno(), o_err.fileno()) - return - - -def form_module_name(name): - canon_name = name.replace("-", "_") - if canon_name.endswith(".py"): - canon_name = canon_name[0:(len(canon_name) - 3)] - canon_name = canon_name.strip() - if not canon_name: - return None - if not canon_name.startswith("cc_"): - canon_name = 'cc_%s' % (canon_name) - return canon_name - - -def fixup_module(mod): - freq = getattr(mod, "frequency", None) - if not freq: - setattr(mod, 'frequency', PER_INSTANCE) - handler = getattr(mod, "handle", None) - if not handler: - def empty_handle(_name, _cfg, _cloud, _log, _args): - pass - setattr(mod, 'handle', empty_handle) - return mod -- cgit v1.2.3