Class: OpenC3::MicroserviceModel

Inherits:
Model show all
Defined in:
lib/openc3/models/microservice_model.rb

Constant Summary collapse

PRIMARY_KEY = 
'openc3_microservices'

Instance Attribute Summary collapse

Attributes inherited from Model

#name, #plugin, #scope, #updated_at

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Model

#check_disable_erb, #create, #destroy, #destroyed?, filter, find_all_by_plugin, from_json, get_all_models, get_model, set, store, store_queued, #update

Constructor Details

#initialize(name:, folder_name: nil, cmd: [], work_dir: '.', ports: [], env: {}, topics: [], target_names: [], options: [], parent: nil, container: nil, updated_at: nil, plugin: nil, needs_dependencies: false, secrets: [], prefix: nil, disable_erb: nil, ignore_changes: nil, shard: 0, enabled: true, scope:) ⇒ MicroserviceModel

Create a microservice model to be deployed to bucket storage



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# File 'lib/openc3/models/microservice_model.rb', line 91

def initialize(
  name:,
  folder_name: nil,
  cmd: [],
  work_dir: '.',
  ports: [],
  env: {},
  topics: [],
  target_names: [],
  options: [],
  parent: nil,
  container: nil,
  updated_at: nil,
  plugin: nil,
  needs_dependencies: false,
  secrets: [],
  prefix: nil,
  disable_erb: nil,
  ignore_changes: nil,
  shard: 0,
  enabled: true,
  scope:
)
  parts = name.split("__")
  if parts.length != 3
    raise "name '#{name}' must be formatted as SCOPE__TYPE__NAME"
  end
  if parts[0] != scope
    raise "name '#{name}' scope '#{parts[0]}' doesn't match scope parameter '#{scope}'"
  end

  super(PRIMARY_KEY, name: name, updated_at: updated_at, plugin: plugin, scope: scope)
  @folder_name = folder_name
  @cmd = cmd
  @work_dir = work_dir
  @ports = ports
  @env = env
  @topics = topics
  @target_names = target_names
  @options = options
  @parent = parent
  @container = container
  @needs_dependencies = needs_dependencies
  @secrets = secrets
  @prefix = prefix
  @disable_erb = disable_erb
  @ignore_changes = ignore_changes
  @shard = shard.to_i # to_i to handle nil
  @enabled = enabled
  @enabled = true if @enabled.nil?
  @bucket = Bucket.getClient()
end

Instance Attribute Details

#cmd ⇒ Object

Returns the value of attribute cmd.



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# File 'lib/openc3/models/microservice_model.rb', line 32

def cmd
  @cmd
end

#container ⇒ Object

Returns the value of attribute container.



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# File 'lib/openc3/models/microservice_model.rb', line 33

def container
  @container
end

#disable_erb ⇒ Object

Returns the value of attribute disable_erb.



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# File 'lib/openc3/models/microservice_model.rb', line 45

def disable_erb
  @disable_erb
end

#enabled ⇒ Object

Returns the value of attribute enabled.



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# File 'lib/openc3/models/microservice_model.rb', line 48

def enabled
  @enabled
end

#env ⇒ Object

Returns the value of attribute env.



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# File 'lib/openc3/models/microservice_model.rb', line 34

def env
  @env
end

#folder_name ⇒ Object

Returns the value of attribute folder_name.



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# File 'lib/openc3/models/microservice_model.rb', line 35

def folder_name
  @folder_name
end

#ignore_changes ⇒ Object

Returns the value of attribute ignore_changes.



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# File 'lib/openc3/models/microservice_model.rb', line 46

def ignore_changes
  @ignore_changes
end

#needs_dependencies ⇒ Object

Returns the value of attribute needs_dependencies.



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# File 'lib/openc3/models/microservice_model.rb', line 36

def needs_dependencies
  @needs_dependencies
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/openc3/models/microservice_model.rb', line 37

def options
  @options
end

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/openc3/models/microservice_model.rb', line 42

def parent
  @parent
end

#ports ⇒ Object

Returns the value of attribute ports.



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# File 'lib/openc3/models/microservice_model.rb', line 41

def ports
  @ports
end

#prefix ⇒ Object

Returns the value of attribute prefix.



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# File 'lib/openc3/models/microservice_model.rb', line 44

def prefix
  @prefix
end

#secrets ⇒ Object

Returns the value of attribute secrets.



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# File 'lib/openc3/models/microservice_model.rb', line 43

def secrets
  @secrets
end

#shard ⇒ Object

Returns the value of attribute shard.



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# File 'lib/openc3/models/microservice_model.rb', line 47

def shard
  @shard
end

#target_names ⇒ Object

Returns the value of attribute target_names.



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# File 'lib/openc3/models/microservice_model.rb', line 38

def target_names
  @target_names
end

#topics ⇒ Object

Returns the value of attribute topics.



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# File 'lib/openc3/models/microservice_model.rb', line 39

def topics
  @topics
end

#work_dir ⇒ Object

Returns the value of attribute work_dir.



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# File 'lib/openc3/models/microservice_model.rb', line 40

def work_dir
  @work_dir
end

Class Method Details

.all(scope: nil) ⇒ Object 



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# File 'lib/openc3/models/microservice_model.rb', line 67

def self.all(scope: nil)
  scoped = {}
  unscoped = super(PRIMARY_KEY)
  unscoped.each do |name, json|
    if !scope or name.split("__")[0] == scope
      scoped[name] = json
    end
  end
  scoped
end

.get(name:, scope: nil) ⇒ Object

NOTE: The following three class methods are used by the ModelController and are reimplemented to enable various Model class methods to work



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# File 'lib/openc3/models/microservice_model.rb', line 52

def self.get(name:, scope: nil)
  super(PRIMARY_KEY, name: name)
end

.handle_config(parser, keyword, parameters, plugin: nil, needs_dependencies: false, scope:) ⇒ Object

Called by the PluginModel to allow this class to validate it’s top-level keyword: “MICROSERVICE”



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# File 'lib/openc3/models/microservice_model.rb', line 79

def self.handle_config(parser, keyword, parameters, plugin: nil, needs_dependencies: false, scope:)
  case keyword
  when 'MICROSERVICE'
    parser.verify_num_parameters(2, 2, "#{keyword} <Folder Name> <Name>")
    # Create name by adding scope and type 'USER' to indicate where this microservice came from
    return self.new(folder_name: parameters[0], name: "#{scope}__USER__#{parameters[1].upcase}", plugin: plugin, needs_dependencies: needs_dependencies, scope: scope)
  else
    raise ConfigParser::Error.new(parser, "Unknown keyword and parameters for Microservice: #{keyword} #{parameters.join(" ")}")
  end
end

.names(scope: nil) ⇒ Object 



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# File 'lib/openc3/models/microservice_model.rb', line 56

def self.names(scope: nil)
  scoped = []
  unscoped = super(PRIMARY_KEY)
  unscoped.each do |name|
    if !scope or name.split("__")[0] == scope
      scoped << name
    end
  end
  scoped
end

Instance Method Details

#as_json(*a) ⇒ Object 



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# File 'lib/openc3/models/microservice_model.rb', line 144

def as_json(*a)
  {
    'name' => @name,
    'folder_name' => @folder_name,
    'cmd' => @cmd,
    'work_dir' => @work_dir,
    'ports' => @ports,
    'env' => @env,
    'topics' => @topics,
    'target_names' => @target_names,
    'options' => @options,
    'parent' => @parent,
    'container' => @container,
    'updated_at' => @updated_at,
    'plugin' => @plugin,
    'needs_dependencies' => @needs_dependencies,
    'secrets' => @secrets.as_json(*a),
    'prefix' => @prefix,
    'disable_erb' => @disable_erb,
    'ignore_changes' => @ignore_changes,
    'shard' => @shard,
    'enabled' => @enabled,
  }
end

#cleanup ⇒ Object 



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# File 'lib/openc3/models/microservice_model.rb', line 281

def cleanup
  # Cleanup metrics
  metric_model = MetricModel.new(name: @name, scope: @scope)
  metric_model.destroy
end

#deploy(gem_path, variables, validate_only: false) ⇒ Object 



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# File 'lib/openc3/models/microservice_model.rb', line 239

def deploy(gem_path, variables, validate_only: false)
  return unless @folder_name

  variables["microservice_name"] = @name
  start_path = "/microservices/#{@folder_name}/"
  Dir.glob(gem_path + start_path + "**/*") do |filename|
    next if filename == '.' or filename == '..' or File.directory?(filename)

    path = filename.split(gem_path)[-1]
    key = "#{@scope}/microservices/#{@name}/" + path.split(start_path)[-1]

    # Load microservice files
    data = File.read(filename, mode: "rb")
    erb_disabled = check_disable_erb(filename)
    unless erb_disabled
      OpenC3.set_working_dir(File.dirname(filename)) do
        data = ERB.new(data.comment_erb(), trim_mode: "-").result(binding.set_variables(variables)) if data.is_printable? and File.basename(filename)[0] != '_'
      end
    end
    unless validate_only
      @bucket.put_object(bucket: ENV['OPENC3_CONFIG_BUCKET'], key: key, body: data)
    end
  end
  unless validate_only
    config = { kind: 'created', type: 'microservice', name: @name }
    config[:plugin] = @plugin if @plugin
    ConfigTopic.write(config, scope: @scope)
  end
end

#handle_config(parser, keyword, parameters) ⇒ Object 



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# File 'lib/openc3/models/microservice_model.rb', line 169

def handle_config(parser, keyword, parameters)
  case keyword
  when 'ENV'
    parser.verify_num_parameters(2, 2, "#{keyword} <Key> <Value>")
    @env[parameters[0]] = parameters[1]
  when 'WORK_DIR'
    parser.verify_num_parameters(1, 1, "#{keyword} <Dir>")
    @work_dir = parameters[0]
  when 'PORT'
    usage = "PORT <Number> <Protocol (Optional)"
    parser.verify_num_parameters(1, 2, usage)
    begin
      @ports << [Integer(parameters[0])]
    rescue # In case Integer fails
      raise ConfigParser::Error.new(parser, "Port must be an integer: #{parameters[0]}", usage)
    end
    protocol = ConfigParser.handle_nil(parameters[1])
    if protocol
      # Per https://kubernetes.io/docs/concepts/services-networking/service/#protocol-support
      if %w(TCP UDP SCTP).include?(protocol.upcase)
        @ports[-1] << protocol.upcase
      else
        raise ConfigParser::Error.new(parser, "Unknown port protocol: #{parameters[1]}", usage)
      end
    else
      @ports[-1] << 'TCP'
    end
  when 'TOPIC'
    parser.verify_num_parameters(1, 1, "#{keyword} <Topic Name>")
    @topics << parameters[0]
  when 'TARGET_NAME'
    parser.verify_num_parameters(1, 1, "#{keyword} <Target Name>")
    @target_names << parameters[0].upcase
  when 'CMD'
    parser.verify_num_parameters(1, nil, "#{keyword} <Args>")
    @cmd = parameters.dup
  when 'OPTION'
    parser.verify_num_parameters(2, nil, "#{keyword} <Option Name> <Option Values>")
    @options << parameters.dup
  when 'CONTAINER'
    parser.verify_num_parameters(1, 1, "#{keyword} <Container Image Name>")
    @container = parameters[0]
  when 'SECRET'
    parser.verify_num_parameters(3, 4, "#{keyword} <Secret Type: ENV or FILE> <Secret Name> <Environment Variable Name or File Path> <Secret Store Name (Optional)>")
    if ConfigParser.handle_nil(parameters[3])
      @secrets << parameters.dup
    else
      @secrets << parameters[0..2]
    end
  when 'ROUTE_PREFIX'
    parser.verify_num_parameters(1, 1, "#{keyword} <Route Prefix>")
    @prefix = parameters[0]
  when 'DISABLE_ERB'
    # 0 to unlimited parameters
    @disable_erb ||= []
    if parameters
      @disable_erb.concat(parameters)
    end
  when 'SHARD'
    parser.verify_num_parameters(1, 1, "#{keyword} <Shard Number Starting from 0>")
    @shard = Integer(parameters[0])
  when 'STOPPED'
    parser.verify_num_parameters(0, 0, "#{keyword}")
    @enabled = false
  else
    raise ConfigParser::Error.new(parser, "Unknown keyword and parameters for Microservice: #{keyword} #{parameters.join(" ")}")
  end
  return nil
end

#undeploy ⇒ Object 



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# File 'lib/openc3/models/microservice_model.rb', line 269

def undeploy
  prefix = "#{@scope}/microservices/#{@name}/"
  @bucket.list_objects(bucket: ENV['OPENC3_CONFIG_BUCKET'], prefix: prefix).each do |object|
    @bucket.delete_object(bucket: ENV['OPENC3_CONFIG_BUCKET'], key: object.key)
  end
  config = { kind: 'deleted', type: 'microservice', name: @name }
  config[:plugin] = @plugin if @plugin
  ConfigTopic.write(config, scope: @scope)
rescue Exception => error
  Logger.error("Error undeploying microservice model #{@name} in scope #{@scope} due to #{error}")
end