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}(?<!-)\.)+[a-zA-Z]{2,63}$)/ unless fqdn =~ regex self.errors.add(:fqdn) end end # Proxy object for handling bacula directives def bacula_handler BaculaHandler.new(self) end # Fetches and memoizes the general configuration settings for Clients # # @see ConfigurationSetting.current_client_settings # @return [Hash] containing the settings def client_settings @client_settings ||= ConfigurationSetting.current_client_settings end end diff --git a/lib/configuration/host.rb b/lib/configuration/host.rb new file mode 100644 index 0000000..78bf31c --- /dev/null +++ b/lib/configuration/host.rb @@ -0,0 +1,56 @@ +module Configuration + # Helper module to add configuration getters for Host + module Host + + # Constructs the final Bacula configuration for the host by appending configs for + # + # * Client + # * Jobs + # * Schedules + # * Filesets + # + # by calling their `to_bacula_config_array` methods. + # + # @return [Array] containing each element's configuration line by line + def baculize_config + templates = job_templates.includes(:fileset, :schedule) + + result = [self] + templates.map {|x| [x, x.fileset, x.schedule] }.flatten.compact.uniq + result.map(&:to_bacula_config_array) + end + + # Constructs the final Bacula configuration for the host by appending configs for + # + # * Client + # * Jobs + # * Schedules + # * Filesets + # + # by calling their `to_bacula_config_array` methods. + # + # It hides the password. + # + # @return [Array] containing each element's configuration line by line + def baculize_config_no_pass + baculize_config.join("\n").gsub(/Password = ".*"$/, '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 + end +end diff --git a/spec/lib/configuration/host_spec.rb b/spec/lib/configuration/host_spec.rb new file mode 100644 index 0000000..52a4cd0 --- /dev/null +++ b/spec/lib/configuration/host_spec.rb @@ -0,0 +1,83 @@ +require 'spec_helper' + +describe Configuration::Host do + describe '#to_bacula_config_array' do + let(:host) { FactoryGirl.create(:host) } + + it "is a valid client directive" do + expect(host.to_bacula_config_array).to include('Client {') + expect(host.to_bacula_config_array).to include('}') + end + + it "contains Address directive" do + expect(host.to_bacula_config_array).to include(" Address = #{host.fqdn}") + end + + it "contains FDPort directive" do + expect(host.to_bacula_config_array).to include(" FDPort = #{host.port}") + end + + it "contains Catalog directive" do + expect(host.to_bacula_config_array). + to include(" Catalog = #{ConfigurationSetting.current_client_settings[:catalog]}") + end + + it "contains Password directive" do + expect(host.to_bacula_config_array).to include(" Password = \"#{host.password}\"") + end + + it "contains File Retention directive" do + expect(host.to_bacula_config_array). + to include(" File Retention = #{host.file_retention} days") + end + + it "contains Job Retention directive" do + expect(host.to_bacula_config_array). + to include(" Job Retention = #{host.job_retention} days") + end + + it "contains AutoPrune directive" do + expect(host.to_bacula_config_array).to include(" AutoPrune = yes") + end + end + + describe '#baculize_config' do + let!(:host) { FactoryGirl.create(:host) } + + let!(:fileset) { FactoryGirl.create(:fileset, host: host) } + let!(:other_fileset) { FactoryGirl.create(:fileset, host: host) } + + let!(:schedule) { FactoryGirl.create(:schedule) } + let!(:other_schedule) { FactoryGirl.create(:schedule) } + + let!(:enabled_job) do + FactoryGirl.create(:job_template, host: host, schedule: schedule, + fileset: fileset, enabled: true) + end + let!(:disabled_job) do + FactoryGirl.create(:job_template, host: host, schedule: other_schedule, + fileset: other_fileset, enabled: false) + end + + subject { host.baculize_config } + + it 'includes the client\'s config' do + expect(subject).to include(host.to_bacula_config_array) + end + + it 'includes the all the job template\'s configs' do + expect(subject).to include(enabled_job.to_bacula_config_array) + expect(subject).to include(disabled_job.to_bacula_config_array) + end + + it 'includes all the used schedules\'s configs' do + expect(subject).to include(schedule.to_bacula_config_array) + expect(subject).to include(other_schedule.to_bacula_config_array) + end + + it 'includes all the used filesets\'s configs' do + expect(subject).to include(fileset.to_bacula_config_array) + expect(subject).to include(other_fileset.to_bacula_config_array) + end + end +end diff --git a/spec/models/host_spec.rb b/spec/models/host_spec.rb index 38b3592..fb228d0 100644 --- a/spec/models/host_spec.rb +++ b/spec/models/host_spec.rb @@ -1,290 +1,210 @@ require 'spec_helper' describe Host do context 'validates' do it "presence of Password" do expect(Host.new).to have(1).errors_on(:password) end it 'numericality of :port' do expect(Host.new(port: :lala)).to have(2).errors_on(:port) end [:file_retention, :job_retention, :name].each do |field| it "#{field} is set automatically" do host = Host.new(fqdn: 'test') host.valid? expect(host.send(field)).to be_present end end end context 'when fqdn is invalid' do let(:host) { FactoryGirl.build(:host, fqdn: :lala) } it 'has errors' do expect(host).to have(1).errors_on(:fqdn) end end context 'name field' do let(:host) { FactoryGirl.create(:host, name: nil) } it 'is generated by the system' do expect(host.name).to be end end - describe '#to_bacula_config_array' do - let(:host) { FactoryGirl.create(:host) } - - it "is a valid client directive" do - expect(host.to_bacula_config_array).to include('Client {') - expect(host.to_bacula_config_array).to include('}') - end - - it "contains Address directive" do - expect(host.to_bacula_config_array).to include(" Address = #{host.fqdn}") - end - - it "contains FDPort directive" do - expect(host.to_bacula_config_array).to include(" FDPort = #{host.port}") - end - - it "contains Catalog directive" do - expect(host.to_bacula_config_array). - to include(" Catalog = #{ConfigurationSetting.current_client_settings[:catalog]}") - end - - it "contains Password directive" do - expect(host.to_bacula_config_array).to include(" Password = \"#{host.password}\"") - end - - it "contains File Retention directive" do - expect(host.to_bacula_config_array). - to include(" File Retention = #{host.file_retention} days") - end - - it "contains Job Retention directive" do - expect(host.to_bacula_config_array). - to include(" Job Retention = #{host.job_retention} days") - end - - it "contains AutoPrune directive" do - expect(host.to_bacula_config_array).to include(" AutoPrune = yes") - end - end - - describe '#baculize_config' do - let!(:host) { FactoryGirl.create(:host) } - - let!(:fileset) { FactoryGirl.create(:fileset, host: host) } - let!(:other_fileset) { FactoryGirl.create(:fileset, host: host) } - - let!(:schedule) { FactoryGirl.create(:schedule) } - let!(:other_schedule) { FactoryGirl.create(:schedule) } - - let!(:enabled_job) do - FactoryGirl.create(:job_template, host: host, schedule: schedule, - fileset: fileset, enabled: true) - end - let!(:disabled_job) do - FactoryGirl.create(:job_template, host: host, schedule: other_schedule, - fileset: other_fileset, enabled: false) - end - - subject { host.baculize_config } - - it 'includes the client\'s config' do - expect(subject).to include(host.to_bacula_config_array) - end - - it 'includes the all the job template\'s configs' do - expect(subject).to include(enabled_job.to_bacula_config_array) - expect(subject).to include(disabled_job.to_bacula_config_array) - end - - it 'includes all the used schedules\'s configs' do - expect(subject).to include(schedule.to_bacula_config_array) - expect(subject).to include(other_schedule.to_bacula_config_array) - end - - it 'includes all the used filesets\'s configs' do - expect(subject).to include(fileset.to_bacula_config_array) - expect(subject).to include(other_fileset.to_bacula_config_array) - end - end - describe '#dispatch_to_bacula' do let(:configured_host) { FactoryGirl.create(:host, :configured) } let(:updated_host) { FactoryGirl.create(:host, :updated) } context 'for non verified hosts' do let(:unverified_host) { FactoryGirl.create(:host, :configured) } it 'returns false' do expect(unverified_host.dispatch_to_bacula).to eq(false) end end it 'calls BaculaHandler#deploy_config' do BaculaHandler.any_instance.should_receive(:deploy_config) configured_host.dispatch_to_bacula end context 'when the config does not reach bacula' do before do BaculaHandler.any_instance.should_receive(:send_config) { false } end it 'returns false' do expect(configured_host.dispatch_to_bacula).to eq(false) end it 'does not change the status of a configured host' do expect { configured_host.dispatch_to_bacula }. to_not change { configured_host.reload.status } end it 'does not change the status of an updated host' do expect { updated_host.dispatch_to_bacula }. to_not change { updated_host.reload.status } end end context 'when the config is sent to bacula' do before do BaculaHandler.any_instance.should_receive(:send_config) { true } end context 'and bacula gets reloaded' do before do BaculaHandler.any_instance.should_receive(:reload_bacula) { true } end it 'makes the configured host deployed' do configured_host.dispatch_to_bacula expect(configured_host.reload).to be_deployed end it 'makes the updated host deployed' do updated_host.dispatch_to_bacula expect(updated_host.reload).to be_deployed end end context 'but bacula fails to reload' do before do BaculaHandler.any_instance.should_receive(:reload_bacula) { false } end it 'makes the configured host dispatcheda' do configured_host.dispatch_to_bacula expect(configured_host.reload).to be_dispatched end it 'makes the updated host redispatched' do updated_host.dispatch_to_bacula expect(updated_host.reload).to be_redispatched end end end end describe '#remove_from_bacula' do let(:host) { FactoryGirl.create(:host, status: Host::STATUSES[:for_removal]) } context 'when the config is NOT removed from bacula' do before { BaculaHandler.any_instance.should_receive(:remove_config) { false } } it 'returns false' do expect(host.remove_from_bacula).to eq(false) end it 'does not alter the host\'s status' do expect { host.remove_from_bacula }. to_not change { host.reload.status } end end context 'when the config is removed from bacula' do before { BaculaHandler.any_instance.should_receive(:remove_config) { true } } context 'and bacula gets reloaded' do before { BaculaHandler.any_instance.should_receive(:reload_bacula) { true } } it 'returns true' do expect(host.remove_from_bacula).to eq(true) end it 'changes the host\'s status to pending' do expect { host.remove_from_bacula }. to change { host.reload.human_status_name }.from('for removal').to('pending') end end end end describe '#recalculate' do let(:host) { FactoryGirl.create(:host, :with_enabled_jobs) } [:configured, :updated].each do |status| context "a #{status} host" do before { host.update_column(:status, Host::STATUSES[status]) } it "stays #{status}" do expect { host.recalculate }.to_not change { host.reload.status } end end end [:pending, :dispatched, :inactive].each do |status| context "a #{status} host" do before { host.update_column(:status, Host::STATUSES[status]) } it 'becomes configured' do expect { host.recalculate }. to change { host.reload.human_status_name }. from(host.human_status_name).to('configured') end end end context 'a dispatched host' do before { host.update_column(:status, Host::STATUSES[:dispatched]) } it 'becomes configured' do expect { host.recalculate }. to change { host.reload.human_status_name }. from('dispatched').to('configured') end end [:deployed, :redispatched, :for_removal].each do |status| context "a #{status} host" do before { host.update_column(:status, Host::STATUSES[status]) } it 'becomes updated' do expect { host.recalculate }. to change { host.reload.human_status_name }. from(host.human_status_name).to('updated') end end end end describe '#verify' do let!(:host) { FactoryGirl.create(:host, verified: false) } let(:admin) { FactoryGirl.create(:user, :admin) } it 'verifies host' do host.verify(admin.id) expect(host).to be_verified end it 'sets the verification credentials' do host.verify(admin.id) expect(host.verifier_id).to eq(admin.id) expect(host.verified_at).not_to be nil end end end