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# vi: ts=4 expandtab
#
# Copyright (C) 2011 Canonical Ltd.
#
# Author: Ben Howard <ben.howard@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/>.
import cloudinit.util as util
from cloudinit.CloudConfig import per_instance
frequency = per_instance
default_file = "/etc/apt/apt.conf.d/90cloud-init-pipelining"
def handle(_name, cfg, _cloud, log, _args):
apt_pipe_value = util.get_cfg_option_str(cfg, "apt_pipelining", False)
apt_pipe_value = str(apt_pipe_value).lower()
if apt_pipe_value == "false":
write_apt_snippet("0", log)
elif apt_pipe_value in ("none", "unchanged", "os"):
return
elif apt_pipe_value in str(range(0, 6)):
write_apt_snippet(apt_pipe_value, log)
else:
log.warn("Invalid option for apt_pipeling: %s" % apt_pipe_value)
def write_apt_snippet(setting, log, f_name=default_file):
""" Writes f_name with apt pipeline depth 'setting' """
acquire_pipeline_depth = 'Acquire::http::Pipeline-Depth "%s";\n'
file_contents = ("//Written by cloud-init per 'apt_pipelining'\n"
+ (acquire_pipeline_depth % setting))
util.write_file(f_name, file_contents)
log.debug("Wrote %s with APT pipeline setting" % f_name)
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