Class: OpenC3::TimelineWorker

Inherits:
Object
  • Object
show all
Defined in:
lib/openc3/microservices/timeline_microservice.rb

Overview

The Timeline worker is a very simple thread pool worker. Once the timeline manager has pushed a job to the schedule one of these workers will run the CMD (command) or SCRIPT (script) or anything that could be expanded in the future.

Instance Method Summary collapse

Constructor Details

#initialize(name:, logger:, scope:, queue:) ⇒ TimelineWorker

Returns a new instance of TimelineWorker.



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# File 'lib/openc3/microservices/timeline_microservice.rb', line 37

def initialize(name:, logger:, scope:, queue:)
  @timeline_name = name
  @logger = logger
  @scope = scope
  @queue = queue
end

Instance Method Details

#clear_expired(activity) ⇒ Object 



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# File 'lib/openc3/microservices/timeline_microservice.rb', line 126

def clear_expired(activity)
  begin
    ActivityModel.range_destroy(name: @timeline_name, scope: @scope, min: activity.start, max: activity.stop)
    activity.add_event(status: 'completed')
  rescue StandardError => e
    @logger.error "#{@timeline_name} clear_expired failed > #{activity.as_json(:allow_nan => true)} #{e.message}"
  end
end

#get_token(username) ⇒ Object 



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# File 'lib/openc3/microservices/timeline_microservice.rb', line 44

def get_token(username)
  if ENV['OPENC3_API_CLIENT'].nil?
    return OpenC3Authentication.new().token
  else
    # Check for offline access token
    model = nil
    model = OpenC3::OfflineAccessModel.get_model(name: username, scope: @scope) if username and username != ''
    if model and model.offline_access_token
      auth = OpenC3KeycloakAuthentication.new(ENV['OPENC3_KEYCLOAK_URL'])
      return auth.get_token_from_refresh_token(model.offline_access_token)
    else
      return nil
    end
  end
end

#run ⇒ Object 



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# File 'lib/openc3/microservices/timeline_microservice.rb', line 60

def run
  @logger.info "#{@timeline_name} timeline worker running"
  loop do
    activity = @queue.pop
    break if activity.nil?

    run_activity(activity)
  end
  @logger.info "#{@timeline_name} timeine worker exiting"
end

#run_activity(activity) ⇒ Object 



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# File 'lib/openc3/microservices/timeline_microservice.rb', line 71

def run_activity(activity)
  case activity.kind.upcase
  when 'COMMAND'
    run_command(activity)
  when 'SCRIPT'
    run_script(activity)
  when 'EXPIRE'
    clear_expired(activity)
  else
    @logger.error "Unknown kind passed to microservice #{@timeline_name}: #{activity.as_json(:allow_nan => true)}"
  end
end

#run_command(activity) ⇒ Object 



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# File 'lib/openc3/microservices/timeline_microservice.rb', line 84

def run_command(activity)
  @logger.info "#{@timeline_name} run_command > #{activity.as_json(:allow_nan => true)}"
  begin
    username = activity.data['username']
    token = get_token(username)
    raise "No token available for username: #{username}" unless token
    cmd_no_hazardous_check(activity.data['command'], scope: @scope, token: token)
    activity.commit(status: 'completed', fulfillment: true)
  rescue StandardError => e
    activity.commit(status: 'failed', message: e.message)
    @logger.error "#{@timeline_name} run_cmd failed > #{activity.as_json(:allow_nan => true)}, #{e.formatted}"
  end
end

#run_script(activity) ⇒ Object 



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# File 'lib/openc3/microservices/timeline_microservice.rb', line 98

def run_script(activity)
  @logger.info "#{@timeline_name} run_script > #{activity.as_json(:allow_nan => true)}"
  begin
    username = activity.data['username']
    token = get_token(username)
    raise "No token available for username: #{username}" unless token
    request = Net::HTTP::Post.new(
      "/script-api/scripts/#{activity.data['script']}/run?scope=#{@scope}",
      'Content-Type' => 'application/json',
      'Authorization' => token
    )
    request.body = JSON.generate({
      'scope' => @scope,
      'environment' => activity.data['environment'],
      'timeline' => @timeline_name,
      'id' => activity.start
    })
    hostname = ENV['OPENC3_SCRIPT_HOSTNAME'] || 'openc3-cosmos-script-runner-api'
    response = Net::HTTP.new(hostname, 2902).request(request)
    raise "failed to call #{hostname}, for script: #{activity.data['script']}, response code: #{response.code}" if response.code != '200'

    activity.commit(status: 'completed', message: "#{activity.data['script']} => #{response.body}", fulfillment: true)
  rescue StandardError => e
    activity.commit(status: 'failed', message: e.message)
    @logger.error "#{@timeline_name} run_script failed > #{activity.as_json(:allow_nan => true).to_s}, #{e.message}"
  end
end