Method: Synapse::Synapse#run

Defined in:
lib/synapse.rb

#run ⇒ Object

start all the watchers and enable haproxy configuration



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# File 'lib/synapse.rb', line 44

def run
  log.info "synapse: starting..."

  # start all the watchers
  @service_watchers.map { |watcher| watcher.start }

  # main loop
  loops = 0
  loop do
    @service_watchers.each do |w|
      raise "synapse: service watcher #{w.name} failed ping!" unless w.ping?
    end

    if @config_updated
      @config_updated = false
      @config_generators.each do |config_generator|
        log.info "synapse: configuring #{config_generator.name}"
        config_generator.update_config(@service_watchers)
      end
    end

    sleep 1
    @config_generators.each do |config_generator|
      config_generator.tick(@service_watchers)
    end

    loops += 1
    log.debug "synapse: still running at #{Time.now}" if (loops % 60) == 0
  end

rescue StandardError => e
  log.error "synapse: encountered unexpected exception #{e.inspect} in main thread"
  raise e
ensure
  log.warn "synapse: exiting; sending stop signal to all watchers"

  # stop all the watchers
  @service_watchers.map(&:stop)
end