diff --git a/lib/bacula_handler.rb b/lib/bacula_handler.rb index 04b2b6f..742d621 100644 --- a/lib/bacula_handler.rb +++ b/lib/bacula_handler.rb @@ -1,207 +1,208 @@ class BaculaHandler require 'net/scp' attr_accessor :host, :templates, :client, :jobs, :schedules, :filesets # Initializes a BaculaHandler instance. # # Sets `host` and `templates` attributes. # Sets the temporal files that contain the client's configuration # # @param host[Host] A the host instance the the bacula handler will act upon def initialize(host) @host = host @templates = host.job_templates.includes(:fileset, :schedule) @client = get_client_file @jobs = get_jobs_file @schedules = get_schedules_file @filesets = get_filesets_file end # Deploys the host's config to the bacula director by # # * uploading the configuration # * reloadind the bacula director # # Updates the host's status accordingly # # @return [Boolean] false if something went wrong def deploy_config return false unless send_config if reload_bacula if host.bacula_ready? host.set_deployed else host.set_inactive end else host.dispatch || host.redispatch end end # Removes the host's configuration from the bacula director by # # * removing the host's configuration files # * reloading the bacula director # # Updates the host's status accordingly # # @return [Boolean] false if something went wrong def undeploy_config return false unless remove_config host.disable if reload_bacula end # Schedules an immediate backup to the bacula director for the given host and job # # @param job_name[String] the job's name def backup_now(job_name) job = host.job_templates.enabled.find_by(name: job_name) return false unless job command = "echo \"run level=full job=\\\"#{job.name_for_config}\\\" yes\" | #{bconsole}" log(command) exec_with_timeout(command, 10) end # Schedules an immediate restore to the bacula director for the given host. # # @param job_ids[Array] contains the jobs that compose the restore for this fileset # @param file_set_name[String] the fileset that is going to be restored # @param restore_point[String] the restore datetime # @param location[String] the desired restore location # @param restore_client[String] the desired restore client def restore(job_ids, file_set_name, restore_point, location="/tmp/bacula-restore", restore_client = nil) command = "echo \"restore client=\\\"#{host.name}\\\" " if restore_client && restore_client != host.name command << "restoreclient=\\\"#{restore_client}\\\" " end command << "jobid=#{job_ids.join(',')} " command << "where=\\\"#{location}\\\" " command << "fileset=\\\"#{file_set_name}\\\" " if restore_point command << "before=\\\"#{restore_point}\\\" " else command << "current " end command << "select all done yes\" " command << "| #{bconsole}" log(command) exec_with_timeout(command, 10) end private def get_client_file file = a_tmpfile file.write host.to_bacula_config_array.join("\n") file.close file end def get_jobs_file file = a_tmpfile file.write templates.map(&:to_bacula_config_array).join("\n") file.close file end def get_schedules_file file = a_tmpfile file.write templates.map(&:schedule).uniq.map(&:to_bacula_config_array).join("\n") file.close file end def get_filesets_file file = a_tmpfile file.write templates.map(&:fileset).uniq.map(&:to_bacula_config_array).join("\n") file.close file end def send_config begin Net::SCP.upload!( ssh_settings[:host], ssh_settings[:username], client.path, ssh_settings[:path] + 'clients/' + host.name + '.conf', ssh: { keys: [ssh_settings[:key_file]] } ) Net::SCP.upload!( ssh_settings[:host], ssh_settings[:username], jobs.path, ssh_settings[:path] + 'jobs/' + host.name + '.conf', ssh: { keys: [ssh_settings[:key_file]] } ) Net::SCP.upload!( ssh_settings[:host], ssh_settings[:username], schedules.path, ssh_settings[:path] + 'schedules/' + host.name + '.conf', ssh: { keys: [ssh_settings[:key_file]] } ) Net::SCP.upload!( ssh_settings[:host], ssh_settings[:username], filesets.path, ssh_settings[:path] + 'filesets/' + host.name + '.conf', ssh: { keys: [ssh_settings[:key_file]] } ) rescue return false end true end def remove_config begin Net::SSH.start(ssh_settings[:host], ssh_settings[:username], keys: ssh_settings[:key_file]) do |ssh| ssh.exec!("rm #{ssh_settings[:path]}*/#{host.name}.conf") end rescue return false end true end def reload_bacula command = "echo \"reload quit\" | #{bconsole}" + log("Bacula reload [#{host.name}]") exec_with_timeout(command, 2) end def exec_with_timeout(command, sec) begin Timeout::timeout(sec) do `#{command}` end rescue last_job = host.client.jobs.last log "[#{host.name}] process took too long: #{sec} for command: #{command} last job: #{last_job.try(:id)}" return false end true end def bconsole "bconsole -c #{Rails.root}/config/bconsole.conf" end def ssh_settings @ssh_settings ||= YAML::load(File.open("#{Rails.root}/config/ssh.yml"))[Rails.env]. symbolize_keys end def a_tmpfile file = Tempfile.new(host.name) file.chmod(0666) file end def log(msg) Rails.logger.warn("[BaculaHandler][#{Time.now.to_s}]: #{msg}") end end