Class: Backarch::Config

Inherits:
Object
  • Object
show all
Extended by:
GLI::App
Defined in:
lib/backarch/config.rb

Constant Summary collapse

DATE_FORMAT = 
'%Y%m%d'

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.opts ⇒ Object

Returns the value of attribute opts.



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# File 'lib/backarch/config.rb', line 10

def opts
  @opts
end

.program_name ⇒ Object

Returns the value of attribute program_name.



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# File 'lib/backarch/config.rb', line 8

def program_name
  @program_name
end

.target_app ⇒ Object

Returns the value of attribute target_app.



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# File 'lib/backarch/config.rb', line 9

def target_app
  @target_app
end

Class Method Details

.cassandra_version ⇒ Object 



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# File 'lib/backarch/config.rb', line 123

def cassandra_version
  @opts[:cassandra_version]
end

.compress ⇒ Object 



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# File 'lib/backarch/config.rb', line 107

def compress
  @opts[:no_compress] ? false : true
end

.config ⇒ Object 



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# File 'lib/backarch/config.rb', line 111

def config
  @opts[:config] ||= case @target_app
                     when :elasticsearch then '/etc/chef/elasticsearch_archive.yaml'
                     when :cassandra then '/etc/chef/cassandra_archive.yaml'
                     end
  YAML.load(File.read(@opts[:config]))
end

.date ⇒ Object 



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# File 'lib/backarch/config.rb', line 119

def date
  @opts[:date] ||= Date.today.strftime('%Y%m%d')
end

.init ⇒ Object 



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# File 'lib/backarch/config.rb', line 14

def init
  @program_name = $0

  program_desc 'Snapshot and archival suite for Cassandra and ElasticSearch'
  version Backarch::VERSION

  desc 'The Cassandra, ElasticSearch, or tar data directory'
  flag :i, :input

  desc "Configuration file location (default: /etc/chef/elasticsearch_archive.yaml)"
  flag :c, :config

  desc "The date for the archive (defaults to today)"
  flag :d, :date

  desc "Log level (info, debug...)"
  default_value 'info'
  flag :l, :log_level

  desc "The snapshot or tar output location"
  flag :o, :output

  desc "Prior snapshot directory to hard link to with rsync"
  flag :p, :link_prior

  desc 'Disable compression of archive'
  switch :Z, :no_compress

  desc 'Full path to the nodetool binary'
  flag(:n, :nodetool)

  desc 'The version of the cassandra application (required for pre 1.0 versions)'
  flag(:V, :cassandra_version)

  command(:cassandra) do |cmd|
    cmd.action do |global_opts, opts, args|
      @target_app = :cassandra
      init_aws

      case args.first
      when 'snapshot'
        Snapshot::Cassandra.run
      when 'archive'
        Archive.run
      end
    end
  end

  command(:elasticsearch) do |cmd|
    cmd.action do |global_opts, opts, args|
      @target_app = :elasticsearch
      init_aws

      case args.first
      when 'snapshot'
        Snapshot::Elasticsearch.run
      when 'archive'
        Archive.run
      when 'restore'
        ElasticsearchRestoration.run
      end
    end
  end

  command(:tar) do |cmd|
    cmd.action do |global_opts, opts, args|
      @target_app = :tar

      case args.first
      when 'extract'
        TarExtracter.run
      end
    end
  end

  pre do |global_opts, command, opts, args|
    @opts = global_opts.merge(opts)
    LOG.level = LOG_LEVELS[@opts[:log_level]]
  end

  run(ARGV)
end

.init_aws ⇒ Object 



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# File 'lib/backarch/config.rb', line 97

def init_aws
  AWS.config \
    :access_key_id     => config['aws']["aws_access_key_id"],
    :secret_access_key => config['aws']["aws_secret_access_key"],
    :ssl_verify_peer   => false,
    :http_open_timeout => 2,
    :http_read_timeout => 2,
    :http_idle_timeout => 5
end

.input ⇒ Object 



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# File 'lib/backarch/config.rb', line 131

def input
  @opts[:input].gsub(%r{/\Z}, '') if @opts[:input]
end

.link_prior ⇒ Object 



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# File 'lib/backarch/config.rb', line 139

def link_prior
  @opts[:link_prior] ||= (1..30).map { |i| snapshot_dir(i * -1) }.select { |dir| Dir.exists? dir }.first
end

.nodetool ⇒ Object 



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# File 'lib/backarch/config.rb', line 135

def nodetool
  @opts[:nodetool] ||= '/usr/lib/cassandra/bin/nodetool'
end

.output ⇒ Object 



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# File 'lib/backarch/config.rb', line 127

def output
  @opts[:output].gsub(%r{/\Z}, '') if @opts[:output]
end

.snapshot_dir(offset = 0) ⇒ Object 



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# File 'lib/backarch/config.rb', line 143

def snapshot_dir offset=0
  "#{Config.output}/full/#{(Date.strptime(date, DATE_FORMAT) + offset).strftime(DATE_FORMAT)}"
end