diff --git a/app/models/host.rb b/app/models/host.rb index 62dae9a..3a252a1 100644 --- a/app/models/host.rb +++ b/app/models/host.rb @@ -1,295 +1,247 @@ # The bacula database must be independent from all of our application logic. # For this reason we have Host which is the application equivalent of a Bacula Client. # # A host is being created from our application. When it receives all the configuration # which is required it gets dispatched to bacula through some configuration files. After # that, a client with the exact same config is generated by bacula. class Host < ActiveRecord::Base + include Configuration::Host + STATUSES = { pending: 0, configured: 1, dispatched: 2, deployed: 3, updated: 4, redispatched: 5, for_removal: 6, inactive: 7 } has_many :ownerships has_many :users, through: :ownerships, inverse_of: :hosts belongs_to :client, class_name: :Client, foreign_key: :name, primary_key: :name belongs_to :verifier, class_name: :User, foreign_key: :verifier_id, primary_key: :id has_many :filesets, dependent: :destroy has_many :job_templates, dependent: :destroy has_many :schedules, dependent: :destroy validates :file_retention, :job_retention, :port, :password, presence: true validates :port, numericality: true validates :fqdn, presence: true, uniqueness: true validate :fqdn_format scope :not_baculized, -> { joins("left join Client on Client.Name = hosts.name").where(Client: { Name: nil }) } scope :unverified, -> { where(verified: false) } before_validation :set_retention, :unset_baculized, :sanitize_name state_machine :status, initial: :pending do STATUSES.each do |status_name, value| state status_name, value: value end after_transition [:dispatched, :redispatched, :configured, :updated] => :deployed do |host| host.job_templates.enabled. update_all(baculized: true, baculized_at: Time.now, updated_at: Time.now) end event :add_configuration do transition [:pending, :dispatched, :inactive] => :configured end event :dispatch do transition :configured => :dispatched end event :redispatch do transition :updated => :redispatched end event :set_deployed do transition [:dispatched, :redispatched, :configured, :updated] => :deployed end event :change_deployed_config do transition [:deployed, :redispatched, :for_removal] => :updated end event :mark_for_removal do transition [:dispatched, :deployed, :updated, :redispatched] => :for_removal end event :set_inactive do transition [:deployed, :dispatched, :updated, :redispatched] => :inactive end event :disable do transition all => :pending end end - # Constructs the final Bacula configuration for the host by appending configs for - # - # * Client - # * Jobs - # * Schedules - # * Filesets - # - # by calling their `to_bacula_config_array` methods. - # - # @return [Array] containing each element's configuration line by line - def baculize_config - templates = job_templates.includes(:fileset, :schedule) - - result = [self] + templates.map {|x| [x, x.fileset, x.schedule] }.flatten.compact.uniq - result.map(&:to_bacula_config_array) - end - - # Constructs the final Bacula configuration for the host by appending configs for - # - # * Client - # * Jobs - # * Schedules - # * Filesets - # - # by calling their `to_bacula_config_array` methods. - # - # It hides the password. - # - # @return [Array] containing each element's configuration line by line - def baculize_config_no_pass - baculize_config.join("\n").gsub(/Password = ".*"$/, 'Password = "*************"') - end - - # Constructs an array where each element is a line for the Client's bacula config - # - # @return [Array] - def to_bacula_config_array - [ - "Client {", - " Name = #{name}", - " Address = #{fqdn}", - " FDPort = #{port}", - " Catalog = #{client_settings[:catalog]}", - " Password = \"#{password}\"", - " File Retention = #{file_retention} #{file_retention_period_type}", - " Job Retention = #{job_retention} #{job_retention_period_type}", - " AutoPrune = #{auto_prune_human}", - "}" - ] - end # Shows the host's auto_prune setting def auto_prune_human client_settings[:autoprune] end # Uploads the host's config to bacula # Reloads bacula server # # It updates the host's status accordingly def dispatch_to_bacula return false if not needs_dispatch? bacula_handler.deploy_config end # Removes a Host from bacula configuration. # Reloads bacula server # # If all go well it changes the host's status and returns true def remove_from_bacula return false unless needs_revoke? bacula_handler.undeploy_config end # Restores a host's backup to a preselected location # # @param fileset_id[Integer] the desired fileset # @param location[String] the desired restore location # @param restore_point[Datetime] the desired restore_point datetime def restore(file_set_id, location, restore_point=nil) return false if not restorable? job_ids = client.get_job_ids(file_set_id, restore_point) file_set_name = FileSet.find(file_set_id).file_set bacula_handler.restore(job_ids, file_set_name, location) end # Runs the given backup job ASAP def backup_now(job_name) bacula_handler.backup_now(job_name) end # Disables all jobs and sends the configuration to Bacula def disable_jobs_and_update job_templates.update_all(enabled: false) bacula_handler.deploy_config end # Determinex weather a host: # # * has all it takes to be deployed but # * the config is not yet sent to bacula # # @return [Boolean] def needs_dispatch? verified? && (can_dispatch? || can_redispatch?) end # Determines weather a host is marked for removal # # @return [Boolean] def needs_revoke? for_removal? end # Handles the host's job changes by updating the host's status def recalculate add_configuration || change_deployed_config end # Fetches an info message concerning the host's deploy status def display_message if !verified? { message: 'Your host needs to be verified by an admin', severity: :alert } elsif pending? { message: 'client not configured yet', severity: :alert } elsif configured? || dispatched? { message: 'client not deployed to Bacula', severity: :alert } elsif updated? || redispatched? { message: 'client configuration changed, deploy needed', severity: :alert } elsif for_removal? { message: 'pending client configuration withdraw', severity: :error } elsif inactive? { message: 'client disabled', severity: :alert } end end # Determines if a host can issue a restore job. # # @returns [Boolean] true if the host's client can issue a restore job def restorable? client.present? && client.is_backed_up? end # @return [User] the first of the host's users def first_user users.order('ownerships.created_at asc').first end # Marks the host as verified and sets the relevant metadata # # @param admin_verifier[Integer] the verifier's id def verify(admin_verifier) self.verified = true self.verifier_id = admin_verifier self.verified_at = Time.now save end # Determines if a host can be disabled or not. # Equivalent to is_deployed # # @return [Boolean] def can_be_disabled? dispatched? || deployed? || updated? || redispatched? end private # automatic setters def sanitize_name self.name = fqdn end # Sets the file and job retention according to the global settings def set_retention self.file_retention = client_settings[:file_retention] self.file_retention_period_type = client_settings[:file_retention_period_type] self.job_retention = client_settings[:job_retention] self.job_retention_period_type = client_settings[:job_retention_period_type] end def unset_baculized self.baculized = false if new_record? true end # validation def fqdn_format regex = /(?=^.{4,253}$)(^((?!-)[a-zA-Z0-9-]{1,63}(?