Class: PushyClient::JobRunner
- Inherits:
-
Object
- Object
- PushyClient::JobRunner
- Defined in:
- lib/pushy_client/job_runner.rb
Instance Attribute Summary collapse
-
#client ⇒ Object
readonly
Returns the value of attribute client.
-
#command ⇒ Object
readonly
Returns the value of attribute command.
-
#job_id ⇒ Object
readonly
Returns the value of attribute job_id.
-
#lockfile ⇒ Object
readonly
Returns the value of attribute lockfile.
-
#state ⇒ Object
readonly
Returns the value of attribute state.
Instance Method Summary collapse
- #abort ⇒ Object
- #commit(job_id, command, opts) ⇒ Object
-
#initialize(client) ⇒ JobRunner
constructor
A new instance of JobRunner.
- #job_state ⇒ Object
- #node_name ⇒ Object
- #on_job_state_change(&block) ⇒ Object
- #reconfigure ⇒ Object
- #run(job_id) ⇒ Object
- #safe_to_reconfigure? ⇒ Boolean
- #start ⇒ Object
- #stop ⇒ Object
Constructor Details
#initialize(client) ⇒ JobRunner
Returns a new instance of JobRunner.
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# File 'lib/pushy_client/job_runner.rb', line 29 def initialize(client) @client = client @on_job_state_change = [] set_job_state(:idle) @pid = nil @process_thread = nil # Keep job state and process state in sync @state_lock = Mutex.new end |
Instance Attribute Details
#client ⇒ Object (readonly)
Returns the value of attribute client.
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# File 'lib/pushy_client/job_runner.rb', line 41 def client @client end |
#command ⇒ Object (readonly)
Returns the value of attribute command.
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# File 'lib/pushy_client/job_runner.rb', line 44 def command @command end |
#job_id ⇒ Object (readonly)
Returns the value of attribute job_id.
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# File 'lib/pushy_client/job_runner.rb', line 43 def job_id @job_id end |
#lockfile ⇒ Object (readonly)
Returns the value of attribute lockfile.
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# File 'lib/pushy_client/job_runner.rb', line 45 def lockfile @lockfile end |
#state ⇒ Object (readonly)
Returns the value of attribute state.
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# File 'lib/pushy_client/job_runner.rb', line 42 def state @state end |
Instance Method Details
#abort ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 142 def abort Chef::Log.info("[#{node_name}] Received abort") @state_lock.synchronize do _job_id = job_id stop client.send_command(:aborted, _job_id) end end |
#commit(job_id, command, opts) ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 71 def commit(job_id, command, opts) @opts = opts @state_lock.synchronize do if @state == :idle # If we're being asked to lock if client.whitelist[command] && client.whitelist[command].is_a?(Hash) && client.whitelist[command][:lock] # If the command is chef-client # We don't want to run if there is already another instance of chef-client going, # so we check to see if there is a runlock on chef-client before committing. This # currently only works in versions of chef where runlock has been implemented. # The location of our lockfile if client.whitelist[command][:lock] == true lockfile_location = Chef::Config[:lockfile] || "#{Chef::Config[:file_cache_path]}/chef-client-running.pid" else lockfile_location = client.whitelist[command][:lock] end # Open the Lockfile begin @lockfile = File.open(lockfile_location, 'w') locked = lockfile.flock(File::LOCK_EX|File::LOCK_NB) unless locked Chef::Log.info("[#{node_name}] Received commit #{job_id} but is already running '#{command}'") client.send_command(:nack_commit, job_id) return false end rescue Errno::ENOENT end elsif client.whitelist[command] user_ok = check_user(job_id) dir_ok = check_dir(job_id) file_ok = check_file(job_id) if user_ok && dir_ok && file_ok Chef::Log.info("[#{node_name}] Received commit #{job_id}") set_job_state(:committed, job_id, command) client.send_command(:ack_commit, job_id) true else client.send_command(:nack_commit, job_id) end else Chef::Log.error("[#{node_name}] Received commit #{job_id}, but command '#{command}' is not in the whitelist!") client.send_command(:nack_commit, job_id) false end else Chef::Log.warn("[#{node_name}] Received commit #{job_id} but current state is #{@state} #{@job_id}") client.send_command(:nack_commit, job_id) false end end end |
#job_state ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 151 def job_state @state_lock.synchronize do get_job_state end end |
#node_name ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 53 def node_name client.node_name end |
#on_job_state_change(&block) ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 157 def on_job_state_change(&block) @on_job_state_change << block end |
#reconfigure ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 67 def reconfigure # We have no configuration, and keep state between reconfigures end |
#run(job_id) ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 126 def run(job_id) @state_lock.synchronize do if @state == :committed && @job_id == job_id Chef::Log.info("[#{node_name}] Received run #{job_id}") pid, process_thread = start_process set_job_state(:running, job_id, @command, pid, process_thread) client.send_command(:ack_run, job_id) true else Chef::Log.warn("[#{node_name}] Received run #{job_id} but current state is #{@state} #{@job_id}") client.send_command(:nack_run, job_id) false end end end |
#safe_to_reconfigure? ⇒ Boolean
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# File 'lib/pushy_client/job_runner.rb', line 47 def safe_to_reconfigure? @state_lock.synchronize do @state == :idle end end |
#start ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 57 def start end |
#stop ⇒ Object
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# File 'lib/pushy_client/job_runner.rb', line 60 def stop if @state == :running kill_process end set_job_state(:idle) end |