From 3e363503097ff40f5ee46626acd387fef603c5d0 Mon Sep 17 00:00:00 2001 From: Abhijeet Kasurde Date: Wed, 17 Jun 2020 08:43:06 +0530 Subject: [PATCH] [2.9] Handle disabled service units (#69804) Signed-off-by: Abhijeet Kasurde (cherry picked from commit 723a904f4e1fc7c17ebdf1a6276f9e4f46e606b2) --- lib/ansible/modules/system/service_facts.py | 8 +- .../service_facts/files/ansible.systemd | 11 +++ .../files/ansible_test_service.py | 73 +++++++++++++++++++ .../targets/service_facts/tasks/main.yml | 33 +++++---- .../service_facts/tasks/systemd_cleanup.yml | 32 ++++++++ .../service_facts/tasks/systemd_setup.yml | 26 +++++++ .../targets/service_facts/tasks/tests.yml | 36 +++++++++ 7 files changed, 201 insertions(+), 18 deletions(-) create mode 100644 test/integration/targets/service_facts/files/ansible.systemd create mode 100644 test/integration/targets/service_facts/files/ansible_test_service.py create mode 100644 test/integration/targets/service_facts/tasks/systemd_cleanup.yml create mode 100644 test/integration/targets/service_facts/tasks/systemd_setup.yml create mode 100644 test/integration/targets/service_facts/tasks/tests.yml diff --git a/lib/ansible/modules/system/service_facts.py b/lib/ansible/modules/system/service_facts.py index 6f425c3aa4d..f92ffdb12df 100644 --- a/lib/ansible/modules/system/service_facts.py +++ b/lib/ansible/modules/system/service_facts.py @@ -35,7 +35,7 @@ author: ''' EXAMPLES = ''' -- name: populate service facts +- name: Populate service facts service_facts: - debug: @@ -218,7 +218,11 @@ class SystemctlScanService(BaseService): except IndexError: self.module.fail_json(msg="Malformed output discovered from systemd list-unit-files: {0}".format(line)) if service_name not in services: - services[service_name] = {"name": service_name, "state": "unknown", "status": status_val, "source": "systemd"} + rc, stdout, stderr = self.module.run_command("%s show %s --property=ActiveState" % (systemctl_path, service_name), use_unsafe_shell=True) + state = 'unknown' + if not rc and stdout != '': + state = stdout.replace('ActiveState=', '').rstrip() + services[service_name] = {"name": service_name, "state": state, "status": status_val, "source": "systemd"} else: services[service_name]["status"] = status_val return services diff --git a/test/integration/targets/service_facts/files/ansible.systemd b/test/integration/targets/service_facts/files/ansible.systemd new file mode 100644 index 00000000000..3466f25a08f --- /dev/null +++ b/test/integration/targets/service_facts/files/ansible.systemd @@ -0,0 +1,11 @@ +[Unit] +Description=Ansible Test Service + +[Service] +ExecStart=/usr/sbin/ansible_test_service "Test\nthat newlines in scripts\nwork" +ExecReload=/bin/true +Type=forking +PIDFile=/var/run/ansible_test_service.pid + +[Install] +WantedBy=multi-user.target diff --git a/test/integration/targets/service_facts/files/ansible_test_service.py b/test/integration/targets/service_facts/files/ansible_test_service.py new file mode 100644 index 00000000000..19f1e291388 --- /dev/null +++ b/test/integration/targets/service_facts/files/ansible_test_service.py @@ -0,0 +1,73 @@ +#!/usr/bin/env python + +# this is mostly based off of the code found here: +# http://code.activestate.com/recipes/278731-creating-a-daemon-the-python-way/ + +from __future__ import absolute_import, division, print_function +__metaclass__ = type + +import os +import resource +import signal +import time + +UMASK = 0 +WORKDIR = "/" +MAXFD = 1024 + +if (hasattr(os, "devnull")): + REDIRECT_TO = os.devnull +else: + REDIRECT_TO = "/dev/null" + + +def createDaemon(): + try: + pid = os.fork() + except OSError as e: + raise Exception("%s [%d]" % (e.strerror, e.errno)) + + if (pid == 0): + os.setsid() + + try: + pid = os.fork() + except OSError as e: + raise Exception("%s [%d]" % (e.strerror, e.errno)) + + if (pid == 0): + os.chdir(WORKDIR) + os.umask(UMASK) + else: + f = open('/var/run/ansible_test_service.pid', 'w') + f.write("%d\n" % pid) + f.close() + os._exit(0) + else: + os._exit(0) + + maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1] + if (maxfd == resource.RLIM_INFINITY): + maxfd = MAXFD + + for fd in range(0, maxfd): + try: + os.close(fd) + except OSError: # ERROR, fd wasn't open to begin with (ignored) + pass + + os.open(REDIRECT_TO, os.O_RDWR) + os.dup2(0, 1) + os.dup2(0, 2) + + return (0) + + +if __name__ == "__main__": + + signal.signal(signal.SIGHUP, signal.SIG_IGN) + + retCode = createDaemon() + + while True: + time.sleep(1000) diff --git a/test/integration/targets/service_facts/tasks/main.yml b/test/integration/targets/service_facts/tasks/main.yml index 65220289d93..5a08fad3002 100644 --- a/test/integration/targets/service_facts/tasks/main.yml +++ b/test/integration/targets/service_facts/tasks/main.yml @@ -1,20 +1,7 @@ # Test playbook for the service_facts module -# (c) 2017, Adam Miller - -# This file is part of Ansible -# -# Ansible is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# Ansible 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 Ansible. If not, see . +# Copyright: (c) 2017, Adam Miller +# Copyright: (c) 2020, Abhijeet Kasurde +# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) - name: Gather service facts service_facts: @@ -22,3 +9,17 @@ - name: check for ansible_facts.services exists assert: that: ansible_facts.services is defined + +- name: Test disabled service facts (https://github.com/ansible/ansible/issues/69144) + block: + - name: display value of ansible_service_mgr + debug: + msg: 'ansible_service_mgr: {{ ansible_service_mgr }}' + + - name: setup test service script + include_tasks: 'systemd_setup.yml' + + - name: execute tests + import_tasks: tests.yml + + when: (ansible_distribution in ['RedHat', 'CentOS', 'ScientificLinux'] and ansible_distribution_major_version is version('7', '>=')) or ansible_distribution == 'Fedora' or (ansible_distribution == 'Ubuntu' and ansible_distribution_version is version('15.04', '>=')) or (ansible_distribution == 'Debian' and ansible_distribution_version is version('8', '>=')) or ansible_os_family == 'Suse' diff --git a/test/integration/targets/service_facts/tasks/systemd_cleanup.yml b/test/integration/targets/service_facts/tasks/systemd_cleanup.yml new file mode 100644 index 00000000000..b68530b937e --- /dev/null +++ b/test/integration/targets/service_facts/tasks/systemd_cleanup.yml @@ -0,0 +1,32 @@ +- name: remove the systemd unit file + file: + path: /usr/lib/systemd/system/ansible_test.service + state: absent + register: remove_systemd_result + +- name: assert that the systemd unit file was removed + assert: + that: + - "remove_systemd_result.path == '/usr/lib/systemd/system/ansible_test.service'" + - "remove_systemd_result.state == 'absent'" + +- name: remove python systemd test script file + file: + path: /usr/sbin/ansible_test_service + state: absent + register: remove_systemd_binary_result + +- name: assert that python systemd test script file was removed + assert: + that: + - "remove_systemd_binary_result.path == '/usr/sbin/ansible_test_service'" + - "remove_systemd_binary_result.state == 'absent'" + +- name: make sure systemd is reloaded + shell: systemctl daemon-reload + register: restart_systemd_result + +- name: assert that systemd was reloaded + assert: + that: + - "restart_systemd_result.rc == 0" diff --git a/test/integration/targets/service_facts/tasks/systemd_setup.yml b/test/integration/targets/service_facts/tasks/systemd_setup.yml new file mode 100644 index 00000000000..85eeed0c7d2 --- /dev/null +++ b/test/integration/targets/service_facts/tasks/systemd_setup.yml @@ -0,0 +1,26 @@ +- name: install the test daemon script + copy: + src: ansible_test_service.py + dest: /usr/sbin/ansible_test_service + mode: '755' + +- name: rewrite shebang in the test daemon script + lineinfile: + path: /usr/sbin/ansible_test_service + line: "#!{{ ansible_python_interpreter | realpath }}" + insertbefore: BOF + firstmatch: yes + +- name: install the systemd unit file + copy: + src: ansible.systemd + dest: /etc/systemd/system/ansible_test.service + mode: '0644' + register: install_systemd_result + +- name: assert that the systemd unit file was installed + assert: + that: + - "install_systemd_result.dest == '/etc/systemd/system/ansible_test.service'" + - "install_systemd_result.state == 'file'" + - "install_systemd_result.mode == '0644'" diff --git a/test/integration/targets/service_facts/tasks/tests.yml b/test/integration/targets/service_facts/tasks/tests.yml new file mode 100644 index 00000000000..495b71fbba6 --- /dev/null +++ b/test/integration/targets/service_facts/tasks/tests.yml @@ -0,0 +1,36 @@ +- name: start the ansible test service + service: + name: ansible_test + enabled: yes + state: started + register: enable_result + +- name: assert that the service was enabled and changes reported + assert: + that: + - "enable_result.enabled == true" + - "enable_result is changed" + +- name: disable the ansible test service + service: + name: ansible_test + state: stopped + enabled: no + register: start_result + +- name: assert that the service was stopped + assert: + that: + - "start_result.state == 'stopped'" + - "start_result is changed" + +- name: Populate service facts + service_facts: + +- name: get ansible_test service's state + debug: + var: services['ansible_test.service'].state + +- name: ansible_test service's running state should be \"inactive\" + assert: + that: "services['ansible_test.service'].state == 'inactive'"