summaryrefslogtreecommitdiff
path: root/lib/chef/provider/service/systemd.rb
blob: 9085ffde2e5e86eba9c6ec291d8e66dc9111f82f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
#
# Author:: Stephen Haynes (<sh@nomitor.com>)
# Copyright:: Copyright (c) 2011 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require 'chef/resource/service'
require 'chef/provider/service/simple'
require 'chef/mixin/which'

class Chef::Provider::Service::Systemd < Chef::Provider::Service::Simple

  include Chef::Mixin::Which

  provides :service, os: "linux"

  attr_accessor :status_check_success

  def self.provides?(node, resource)
    super && Chef::Platform::ServiceHelpers.service_resource_providers.include?(:systemd)
  end

  def self.supports?(resource, action)
    Chef::Platform::ServiceHelpers.config_for_service(resource.service_name).include?(:systemd)
  end

  def load_current_resource
    @current_resource = Chef::Resource::Service.new(new_resource.name)
    current_resource.service_name(new_resource.service_name)
    @status_check_success = true

    if new_resource.status_command
      Chef::Log.debug("#{new_resource} you have specified a status command, running..")

      unless shell_out(new_resource.status_command).error?
        current_resource.running(true)
      else
        @status_check_success = false
        current_resource.running(false)
        current_resource.enabled(false)
      end
    else
      current_resource.running(is_active?)
    end

    current_resource.enabled(is_enabled?)
    current_resource
  end

  def define_resource_requirements
    shared_resource_requirements
    requirements.assert(:all_actions) do |a|
      a.assertion { status_check_success }
      # We won't stop in any case, but in whyrun warn and tell what we're doing.
      a.whyrun ["Failed to determine status of #{new_resource}, using command #{new_resource.status_command}.",
        "Assuming service would have been installed and is disabled"]
    end
  end

  def start_service
    if current_resource.running
      Chef::Log.debug("#{new_resource} already running, not starting")
    else
      if new_resource.start_command
        super
      else
        shell_out_with_systems_locale!("#{systemctl_path} start #{new_resource.service_name}")
      end
    end
  end

  def stop_service
    unless current_resource.running
      Chef::Log.debug("#{new_resource} not running, not stopping")
    else
      if new_resource.stop_command
        super
      else
        shell_out_with_systems_locale!("#{systemctl_path} stop #{new_resource.service_name}")
      end
    end
  end

  def restart_service
    if new_resource.restart_command
      super
    else
      shell_out_with_systems_locale!("#{systemctl_path} restart #{new_resource.service_name}")
    end
  end

  def reload_service
    if new_resource.reload_command
      super
    else
      if current_resource.running
        shell_out_with_systems_locale!("#{systemctl_path} reload #{new_resource.service_name}")
      else
        start_service
      end
    end
  end

  def enable_service
    shell_out!("#{systemctl_path} enable #{new_resource.service_name}")
  end

  def disable_service
    shell_out!("#{systemctl_path} disable #{new_resource.service_name}")
  end

  def is_active?
    shell_out("#{systemctl_path} is-active #{new_resource.service_name} --quiet").exitstatus == 0
  end

  def is_enabled?
    shell_out("#{systemctl_path} is-enabled #{new_resource.service_name} --quiet").exitstatus == 0
  end

  private

  def systemctl_path
    if @systemctl_path.nil?
      @systemctl_path = which("systemctl")
    end
    @systemctl_path
  end

end