ES aliases

gistfile1.txt

group_attrs = ["name", "member"]
group_base = "<%= @ldap_linux_groupbase -%>"
user_filter = Net::LDAP::Filter.present("sAMAccountName")
user_attrs = ["sAMAccountName"]
ldap.search(:base => group_base, :filter => group_filter, :attributes => group_attrs) do |group|
  if mapping[group.name.first]
    groupright = mapping[group.name.first]
    group.member.each do |member|
      ldap.search(:base => member, :filter => user_filter, :attributes => user_attrs) do |user|
        if !rights[user.sAMAccountName.first]
           rights[user.sAMAccountName.first] = []
        end
        rights[user.sAMAccountName.first] = groupright + rights[user.sAMAccountName.first]
      end
    end
  end
end

# clean aliases
aliases = Hashie::Mash.new es.indices.get_aliases
aliases.each_pair do |index,aliases|
  # Match the all the Logstash indexes and get the Logstash
  # date stamp from the index name.
  matches = /logstash-(\d{4}.\d{2}.\d{2})/.match index
  if matches
    # generate all user aliases
    rights.keys.each do |user|
      aliasName = "logstash-#{matches[1]}-#{user}"
      begin
        es.indices.delete_alias(:index => index, :name => aliasName)
      rescue
        # if we are unable to delete an alias, the world will not end, so ignore
      end
      begin
        es.indices.put_alias(
          :index  => index,
          :name   => aliasName,
          :body   => {
            'filter'  => {
              'terms'   => {
                'type'  => rights[user]
              }
            }
          }
        )
      rescue StandardError => e
        # this might very well be fatal :)
        puts "Failed to create alias #{aliasName}. Error was:"
        puts e.message
        puts e.backtrace.inspect
      end
    end
  end
end