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6ae47590cd
* lxc_container: replace subprocess.Popen() with run_command() * Update plugins/modules/lxc_container.py Co-authored-by: Felix Fontein <felix@fontein.de> * add changelog frag * retain Popen logic in module_utils * Update plugins/module_utils/_lxc.py Co-authored-by: Felix Fontein <felix@fontein.de> --------- Co-authored-by: Felix Fontein <felix@fontein.de>
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
# Copyright (c) 2014, Kevin Carter <kevin.carter@rackspace.com>
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# Copyright (c) 2025, Alexei Znamensky <russoz@gmail.com>
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# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
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# SPDX-License-Identifier: GPL-3.0-or-later
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from __future__ import annotations
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import os
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import subprocess
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import tempfile
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.common.text.converters import to_bytes
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# This is used to attach to a running container and execute commands from
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# within the container on the host. This will provide local access to a
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# container without using SSH. The template will attempt to work within the
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# home directory of the user that was attached to the container and source
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# that users environment variables by default.
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ATTACH_TEMPLATE = """#!/usr/bin/env bash
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pushd "$(getent passwd $(whoami)|cut -f6 -d':')"
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if [[ -f ".bashrc" ]];then
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source .bashrc
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unset HOSTNAME
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fi
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popd
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# User defined command
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{}
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"""
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def create_script(command: str, module: AnsibleModule) -> None:
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"""Write out a script onto a target.
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This method should be backward compatible with Python when executing
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from within the container.
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:param command: command to run, this can be a script and can use spacing
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with newlines as separation.
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:param module: AnsibleModule to run commands with.
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"""
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script_file = ""
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try:
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f = tempfile.NamedTemporaryFile(prefix="lxc-attach-script", delete=False, mode="wb")
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f.write(to_bytes(ATTACH_TEMPLATE.format(command), errors="surrogate_or_strict"))
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script_file = f.name
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f.flush()
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f.close()
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os.chmod(script_file, 0o0700)
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with tempfile.NamedTemporaryFile(prefix="lxc-attach-script-log", delete=False, mode="ab") as stdout_file:
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with tempfile.NamedTemporaryFile(prefix="lxc-attach-script-err", delete=False, mode="ab") as stderr_file:
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subprocess.Popen([script_file], stdout=stdout_file, stderr=stderr_file).communicate()
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finally:
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if script_file:
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os.remove(script_file)
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