Class: SmartMachine::Grids::Elasticsearch

Inherits:
Base
  • Object
show all
Defined in:
lib/smart_machine/grids/elasticsearch.rb

Instance Method Summary collapse

Methods inherited from Base

#machine_has_engine_installed?, #platform_on_machine?, #user_bash

Methods included from Logger

configure_logger_for, included, #logger, logger_for

Constructor Details

#initialize(name:) ⇒ Elasticsearch

Returns a new instance of Elasticsearch.



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# File 'lib/smart_machine/grids/elasticsearch.rb', line 4

def initialize(name:)
  config = SmartMachine.config.grids.elasticsearch.dig(name.to_sym)
  raise "elasticsearch config for #{name} not found." unless config

  @port = config.dig(:port)

  @name = name.to_s
  @home_dir = File.expand_path('~')
end

Instance Method Details

#downer ⇒ Object 



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# File 'lib/smart_machine/grids/elasticsearch.rb', line 59

def downer
  # Stopping & Removing containers - in reverse order
  print "-----> Stopping container #{@name} ... "
  if system("docker stop '#{@name}'", out: File::NULL)
    puts "done"
    print "-----> Removing container #{@name} ... "
    if system("docker rm '#{@name}'", out: File::NULL)
      puts "done"
    end
  end

  # Removing networks
  print "-----> Removing network #{@name}-network ... "
  if system("docker network rm #{@name}-network", out: File::NULL)
    puts "done"
  end
end

#uper ⇒ Object 



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# File 'lib/smart_machine/grids/elasticsearch.rb', line 14

def uper
  # Creating networks
  unless system("docker network inspect #{@name}-network", [:out, :err] => File::NULL)
    print "-----> Creating network #{@name}-network ... "
    if system("docker network create #{@name}-network", out: File::NULL)
      puts "done"
    end
  end

  FileUtils.mkdir_p("#{@home_dir}/machine/grids/elasticsearch/#{@name}/data")
  FileUtils.mkdir_p("#{@home_dir}/machine/grids/elasticsearch/#{@name}/logs")

  # Creating & Starting containers
  print "-----> Creating container #{@name} ... "
  command = [
    "docker create",
    "--name='#{@name}'",
    "--label='smartmachine.elasticsearch.name=#{@name}'",
    "--env discovery.type=single-node",
    "--env cluster.name=#{@name}-cluster",
    "--env 'ES_JAVA_OPTS=-Xms512m -Xmx512m -Des.enforce.bootstrap.checks=true'",
    "--env bootstrap.memory_lock=true",
    "--ulimit memlock=-1:-1",
    "--ulimit nofile=65535:65535",
    "--user `id -u`:`id -g`",
    "--publish='#{@port}:#{@port}'",
    "--volume='#{@home_dir}/smartmachine/grids/elasticsearch/#{@name}/data:/usr/share/elasticsearch/data'",
    "--volume='#{@home_dir}/smartmachine/grids/elasticsearch/#{@name}/logs:/usr/share/elasticsearch/logs'",
    "--restart='always'",
    "--network='#{@name}-network'",
    "elasticsearch:7.4.1"
  ]
  if system(command.compact.join(" "), out: File::NULL)
    puts "done"
    puts "-----> Starting container #{@name} ... "
    if system("docker start #{@name}", out: File::NULL)
      puts "done"
    else
      raise "Error: Could not start the created #{@name} container"
    end
  else
    raise "Error: Could not create #{@name} container"
  end
end