Class: Rebi::Environment

Inherits:
Object
  • Object
show all
Includes:
Log
Defined in:
lib/rebi/environment.rb

Constant Summary collapse

RESPONSES = 
{
    'event.createstarting': 'createEnvironment is starting.',
    'event.terminatestarting': 'terminateEnvironment is starting.',
    'event.updatestarting': 'Environment update is starting.',
    'event.redmessage': 'Environment health has been set to RED',
    'event.commandfailed': 'Command failed on instance',
    'event.launchfailed': 'Failed to launch',
    'event.deployfailed': 'Failed to deploy application.',
    'event.redtoyellowmessage': 'Environment health has transitioned from YELLOW to RED',
    'event.yellowmessage': 'Environment health has been set to YELLOW',
    'event.greenmessage': 'Environment health has been set to GREEN',
    'event.launchsuccess': 'Successfully launched environment:',
    'event.launchbad': 'Create environment operation is complete, but with errors',
    'event.updatebad': 'Update environment operation is complete, but with errors.',
    'git.norepository': 'Error: Not a git repository (or any of the parent directories): .git',
    'env.updatesuccess': 'Environment update completed successfully.',
    'env.cnamenotavailable': 'DNS name \([^ ]+\) is not available.',
    'env.nameexists': 'Environment [^ ]+ already exists.',
    'app.deletesuccess': 'The application has been deleted successfully.',
    'app.exists': 'Application {app-name} already exists.',
    'app.notexists': 'No Application named {app-name} found.',
    'logs.pulled': 'Pulled logs for environment instances.',
    'logs.successtail': 'Successfully finished tailing',
    'logs.successbundle': 'Successfully finished bundling',
    'env.terminated': 'terminateEnvironment completed successfully.',
    'env.invalidstate': 'Environment named {env-name} is in an invalid state for this operation. Must be Ready.',
    'loadbalancer.notfound': 'There is no ACTIVE Load Balancer named',
    'ec2.sshalreadyopen': 'the specified rule "peer: 0.0.0.0/0, TCP, from port: 22, to port: 22,',
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Log

#colorize, #colorize_prefix, #error, #error_label, #h1, #h2, #h3, #h4, #hstatus, #log

Constructor Details

#initialize(stage_name, env_name, client = Rebi.eb) ⇒ Environment

Returns a new instance of Environment.



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# File 'lib/rebi/environment.rb', line 47

def initialize stage_name, env_name, client=Rebi.eb
  @stage_name = stage_name
  @env_name = env_name
  @client = client
  @s3_client = Rebi.s3
  @config = Rebi.config.environment(stage_name, env_name)
  @app_name = @config.app_name
  @api_data
end

Instance Attribute Details

#api_data ⇒ Object

Returns the value of attribute api_data.



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# File 'lib/rebi/environment.rb', line 12

def api_data
  @api_data
end

#app_name ⇒ Object (readonly)

Returns the value of attribute app_name.



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# File 'lib/rebi/environment.rb', line 6

def app_name
  @app_name
end

#client ⇒ Object

Returns the value of attribute client.



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# File 'lib/rebi/environment.rb', line 12

def client
  @client
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/rebi/environment.rb', line 6

def config
  @config
end

#env_name ⇒ Object (readonly)

Returns the value of attribute env_name.



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# File 'lib/rebi/environment.rb', line 6

def env_name
  @env_name
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/rebi/environment.rb', line 6

def name
  @name
end

#s3_client ⇒ Object

Returns the value of attribute s3_client.



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# File 'lib/rebi/environment.rb', line 12

def s3_client
  @s3_client
end

#stage_name ⇒ Object (readonly)

Returns the value of attribute stage_name.



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# File 'lib/rebi/environment.rb', line 6

def stage_name
  @stage_name
end

Class Method Details

.all(app_name, client = Rebi.eb) ⇒ Object

TODO



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# File 'lib/rebi/environment.rb', line 379

def self.all app_name, client=Rebi.eb
  client.describe_environments(application_name: app_name,
                               include_deleted: false).environments
end

.create(stage_name, env_name, version_label, client) ⇒ Object

Raises:



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# File 'lib/rebi/environment.rb', line 370

def self.create stage_name, env_name, version_label, client
  env =  new stage_name, env_name, client
  raise Rebi::Error::EnvironmentExisted.new if env.created?

  env.init version_label
  return env
end

.get(stage_name, env_name, client = Rebi.eb) ⇒ Object 



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# File 'lib/rebi/environment.rb', line 384

def self.get stage_name, env_name, client=Rebi.eb
  env = new stage_name, env_name, client
  return env.created? ? env : nil
end

Instance Method Details

#bucket_name ⇒ Object 



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# File 'lib/rebi/environment.rb', line 57

def bucket_name
  @bucket_name ||= client.create_storage_location.s3_bucket
end

#check_created ⇒ Object

Raises:



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# File 'lib/rebi/environment.rb', line 112

def check_created
  raise Rebi::Error::EnvironmentNotExisted.new("#{name} not exists") unless created?
  return created?
end

#check_created! ⇒ Object

refresh data



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# File 'lib/rebi/environment.rb', line 118

def check_created!
  refresh
  check_created
end

#check_instance_profile ⇒ Object 



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# File 'lib/rebi/environment.rb', line 321

def check_instance_profile
  iam = Rebi.iam
  begin
    iam.get_instance_profile({
      instance_profile_name: config.instance_profile
      })
    return true
  rescue Aws::IAM::Errors::NoSuchEntity => e
    raise e unless config.default_instance_profile?
    self.create_defaut_profile
  end
end

#cname ⇒ Object 



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# File 'lib/rebi/environment.rb', line 65

def cname
  created? ? api_data.cname : nil
end

#create_app_version(opts = {}) ⇒ Object 



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# File 'lib/rebi/environment.rb', line 182

def create_app_version opts={}
  return if opts[:settings_only]
  start = Time.now.utc
  source_bundle = Rebi::ZipHelper.new.gen(self.config, opts)
  version_label = source_bundle[:label]
  key = "#{app_name}/#{version_label}.zip"
  log("Uploading source bundle: #{version_label}.zip")
  s3_client.put_object(
    bucket: bucket_name,
    key: key,
    body: source_bundle[:file].read
    )
  log("Creating app version: #{version_label}")
  client.create_application_version({
    application_name: app_name,
    description: source_bundle[:message],
    version_label: version_label,
    source_bundle: {
      s3_bucket: bucket_name,
      s3_key: key
      }
    })
  log("App version was created in: #{Time.now.utc - start}s")
  return version_label
end

#create_defaut_profile ⇒ Object 



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# File 'lib/rebi/environment.rb', line 334

def create_defaut_profile
  iam = Rebi.iam
  profile = role = Rebi::ConfigEnvironment::DEFAULT_IAM_INSTANCE_PROFILE
  iam.create_instance_profile({
    instance_profile_name: profile
    })

  document = <<-JSON
{
  "Version":"2008-10-17",
  "Statement":[
  {
    "Effect":"Allow",
    "Principal":{
      "Service":["ec2.amazonaws.com"]
    },
    "Action":["sts:AssumeRole"]
  }
  ]
}
  JSON
  begin
    iam.create_role({
      role_name: role,
      assume_role_policy_document: document
      })
  rescue Aws::IAM::Errors::EntityAlreadyExists
  end

  iam.add_role_to_instance_profile({
    instance_profile_name: profile,
    role_name: role
    })

end

#created? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rebi/environment.rb', line 123

def created?
  !!api_data
end

#deploy(opts = {}) ⇒ Object 



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# File 'lib/rebi/environment.rb', line 237

def deploy opts={}
  _run_hooks :pre
  version_label = create_app_version opts
  request_id = if created?
    update version_label, opts
  else
    init version_label, opts
  end
  log h3("DEPLOYING")
  _run_hooks :post
  watch_request request_id
  return request_id
end

#environment_variables ⇒ Object 



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# File 'lib/rebi/environment.rb', line 104

def environment_variables
  option_settings.select do |o|
      o[:namespace] == config.ns(:app_env)
  end.map do |o|
        [o[:option_name], o[:value]]
  end.to_h.with_indifferent_access
end

#events(start_time = Time.now, request_id = nil) ⇒ Object 



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# File 'lib/rebi/environment.rb', line 164

def events start_time=Time.now, request_id=nil
  client.describe_events({
    application_name: app_name,
    environment_name: name,
    start_time: start_time,
  }.merge( request_id ? {request_id: request_id} : {})).events
end

#health ⇒ Object 



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# File 'lib/rebi/environment.rb', line 85

def health
  check_created! && api_data.health
end

#id ⇒ Object 



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# File 'lib/rebi/environment.rb', line 73

def id
  created? ? api_data.environment_id : nil
end

#in_updating? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rebi/environment.rb', line 81

def in_updating?
  !!status.match("ing$")
end

#init(version_label, opts = {}) ⇒ Object 



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# File 'lib/rebi/environment.rb', line 208

def init version_label, opts={}
  log h2("Start creating new environment")
  start_time = Time.now

  self.check_instance_profile

  self.api_data = client.create_environment _create_args(version_label, opts)

  request_id = events(start_time).select do |e|
    e.message.match(response_msgs('event.createstarting'))
  end.map(&:request_id).first
  return request_id
end

#instance_ids ⇒ Object 



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# File 'lib/rebi/environment.rb', line 177

def instance_ids
  resp = client.describe_environment_resources environment_name: self.name
  resp.environment_resources.instances.map(&:id).sort
end

#log_label ⇒ Object 



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# File 'lib/rebi/environment.rb', line 266

def log_label
  name
end

#option_settings ⇒ Object 



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# File 'lib/rebi/environment.rb', line 89

def option_settings
  check_created!
  client.describe_configuration_settings({
    application_name: app_name,
    environment_name: name
  }).configuration_settings.first.option_settings.map do |o|
    {
      namespace: o.namespace,
      value: o.value,
      resource_name: o.resource_name,
      option_name: o.option_name,
    }.with_indifferent_access
  end
end

#refresh ⇒ Object 



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# File 'lib/rebi/environment.rb', line 172

def refresh
  self.api_data = nil
  return self
end

#response_msgs(key = nil) ⇒ Object 



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# File 'lib/rebi/environment.rb', line 133

def response_msgs key=nil
  @response_msgs ||= RESPONSES.with_indifferent_access
  return key ? @response_msgs[key] : @response_msgs
end

#ssh(instance_id) ⇒ Object

Raises:



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# File 'lib/rebi/environment.rb', line 294

def ssh instance_id
  raise "Invalid instance_id" unless self.instance_ids.include?(instance_id)


  instance  = Rebi.ec2.describe_instance instance_id

  raise Rebi::Error::EC2NoKey.new unless instance.key_name.present?
  raise Rebi::Error::EC2NoIP.new unless instance.public_ip_address.present?


  Rebi.ec2.authorize_ssh instance_id do
    user = "ec2-user"
    key_file = "~/.ssh/#{instance.key_name}.pem"
    raise Rebi::Error::KeyFileNotFound unless File.exists? File.expand_path(key_file)
    cmd = "ssh -i #{key_file} #{user}@#{instance.public_ip_address}"
    log cmd

    begin
      Subprocess.check_call(['ssh', '-i', key_file,  "#{user}@#{instance.public_ip_address}"])
    rescue Subprocess::NonZeroExit => e
      log e.message
    end

  end

end

#status ⇒ Object 



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# File 'lib/rebi/environment.rb', line 77

def status
  check_created! && api_data.status
end

#success_message?(mes) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rebi/environment.rb', line 270

def success_message? mes
  return true if [
    'event.greenmessage',
    'event.launchsuccess',
    'logs.pulled',
    'env.terminated',
    'env.updatesuccess',
    'app.deletesuccess',
  ].map{|k| response_msgs(k)}.any?{|s| mes.match(s)}

  if [
        'event.redmessage',
        'event.launchbad',
        'event.updatebad',
        'event.commandfailed',
        'event.launchfailed',
        'event.deployfailed',
      ].map {|k| response_msgs(k)}.any? {|s| mes.match(s)}
    raise Rebi::Error::ServiceError.new(mes)
  end

  return false
end

#terminate! ⇒ Object 



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# File 'lib/rebi/environment.rb', line 251

def terminate!
  check_created
  log h2("Start terminating")
  client.terminate_environment({
    environment_name: name,
    environment_id: id,
    })
  start_time = Time.now

  request_id = events(start_time).select do |e|
    e.message.match(response_msgs('event.updatestarting'))
  end.map(&:request_id).first
  return request_id
end

#update(version_label, opts = {}) ⇒ Object

Raises:



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# File 'lib/rebi/environment.rb', line 222

def update version_label, opts={}

  raise Rebi::Error::EnvironmentInUpdating.new("Environment is in updating: #{name}") if in_updating?
  log h2("Start updating")
  start_time = Time.now

  self.api_data = client.update_environment(_update_args(version_label, opts))

  request_id = events(start_time).select do |e|
    e.message.match(response_msgs('event.updatestarting'))
  end.map(&:request_id).first

  return request_id
end

#version_label ⇒ Object 



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# File 'lib/rebi/environment.rb', line 69

def version_label
  created? ? api_data.version_label : nil
end

#watch_request(request_id) ⇒ Object 



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# File 'lib/rebi/environment.rb', line 138

def watch_request request_id
  return unless request_id
  log h1("WATCHING REQUEST [#{request_id}]")
  check_created!
  start = Time.now
  finished = false
  last_time = Time.now - 30.minute
  thread = Thread.new do
    while (start + Rebi.config.timeout) > Time.now && !finished
      events(last_time, request_id).reverse.each do |e|
        finished ||= success_message?(e.message)
        last_time = [last_time + 1.second, e.event_date + 1.second].max
        log(e.message)
      end
      sleep(5) unless finished
    end
    log ("Timeout") unless finished
  end
  begin
    thread.join
  rescue Interrupt
    log("Interrupt")
  end
  return thread
end