Module: Yast::LxcDialogsInclude
- Defined in:
- ../../src/include/lxc/dialogs.rb
Instance Method Summary (collapse)
-
- (Object) AddDialog
Dialog for adding new Linux Container.
-
- (Object) Connect(name)
Launch console for selected container Return PID of console process.
-
- (Object) CreateContainerConfig(name, ip, subnet, bridge, template)
Create configuration file for a container.
-
- (Object) DestroyContainer(name)
Delete given container.
- - (Object) initialize_lxc_dialogs(include_target)
-
- (Object) OverviewDialog
Overview of existing Linux Containers.
-
- (Object) StartContainer(name)
Start selected container.
-
- (Object) StopContainer(name)
Stop given container.
Instance Method Details
- (Object) AddDialog
Dialog for adding new Linux Container
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# File '../../src/include/lxc/dialogs.rb', line 93 def AddDialog # add dialog caption caption = _("Adding New Container") template_items = Lxc.ReadTemplates contents = HBox( HSpacing(), VBox( VSpacing(), # frame label Frame( _("New Container"), HBox( HSpacing(0.5), # text entry Left(TextEntry(Id(:name), _("Name"))), HSpacing(), # combo box label ComboBox(Id(:template), _("Template"), template_items) ) ), VSpacing(), # frame label Frame( _("Network Settings"), HBox( HSpacing(0.5), VBox( HBox( # text entry label TextEntry(Id(:ip), _("IP Address"), "0.0.0.0"), HSpacing(), # text entry label TextEntry(Id(:subnet), _("Subnet"), "/24"), HSpacing(), ReplacePoint( Id(:rp_lan), # combo box label ComboBox(Id(:bridge), _("Bridge"), Lxc.ReadBridgesIds) ) ), VSpacing(0.5), Right( # push button label PushButton(Id(:lan), _("Configure Network...")) ) ), HSpacing(0.5) ) ), VSpacing(), # frame label Frame( _("Password Settings"), HBox( HSpacing(0.5), # password entry HWeight(1, Password(Id(:pw1), _("Root Password"))), # password entry HWeight(1, Password(Id(:pw2), _("Repeat Password"))), HSpacing(0.5) ) ), VSpacing(2), ReplacePoint(Id(:rp_status), Label(Id(:status), "")), VSpacing() ), HSpacing() ) Wizard.SetContentsButtons( caption, contents, Ops.get_string(@HELPS, "create", ""), # button label Label.CancelButton, _("Create") ) UI.ChangeWidget(Id(:ip), :ValidChars, IP.ValidChars4) UI.ChangeWidget(Id(:name), :ValidChars, String.CGraph) ret = nil while true ret = UI.UserInput break if ret == :abort || ret == :cancel || ret == :back if ret == :lan WFM.CallFunction("lan") UI.ReplaceWidget( Id(:rp_lan), # combo box label ComboBox(Id(:bridge), _("Bridge"), Lxc.ReadBridgesIds) ) next end name = Convert.to_string(UI.QueryWidget(Id(:name), :Value)) ip = Convert.to_string(UI.QueryWidget(Id(:ip), :Value)) subnet = Convert.to_string(UI.QueryWidget(Id(:subnet), :Value)) bridge = Convert.to_string(UI.QueryWidget(Id(:bridge), :Value)) template = Convert.to_string(UI.QueryWidget(Id(:template), :Value)) pw1 = Convert.to_string(UI.QueryWidget(Id(:pw1), :Value)) pw2 = Convert.to_string(UI.QueryWidget(Id(:pw2), :Value)) if name == "" # error popup Report.Error(_("Name was not entered.")) UI.SetFocus(Id(:name)) next end if ip != "" && !IP.Check(ip) Report.Error(IP.Valid4) UI.SetFocus(Id(:ip)) next end if pw1 != pw2 # error message Report.Error(_("The passwords do not match.")) UI.SetFocus(Id(:pw1)) next end if ret == :next config_file = Builtins.sformat("/root/%1.config", name) create_config = true if FileUtils.Exists(config_file) if !Popup.AnyQuestion( Popup.NoHeadline, # yes/no popup _( "Configuration with the same name already exist.\n" + "\n" + "Do you want to use existing configuration or\n" + "remove it and use the data you have just entered?\n" ), # button label _("Use Existing Configuration"), _("Replace With New"), :focus_yes ) SCR.Execute(path(".target.remove"), config_file) else create_config = false end end if create_config && CreateContainerConfig(name, ip, subnet, bridge, template) == false next end # busy message Popup.ShowFeedback( "", Builtins.sformat(_("Creating Container %1..."), name) ) # lxc-create -n <name> -f /root/<name>.config -t <template> cmd = Builtins.sformat("lxc-create -n %1 -f /root/%1.config", name) cmd = Ops.add(Ops.add(cmd, " -t "), template) if template != "" out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd)) Popup.ClearFeedback if Ops.get_integer(out, "exit", 0) != 0 Builtins.y2milestone("cmd: %1", cmd) Builtins.y2milestone("lxc-create output: %1", out) Report.Error( Builtins.sformat( _( "Error occured during container creation:\n" + "\n" + "%1" ), Ops.get_string(out, "stdout", "") ) ) next end # busy message Popup.ShowFeedback("", _("Saving Root Password...")) password = Lxc.CryptPassword(pw1) file = Builtins.sformat("/var/lib/lxc/%1/rootfs/etc/shadow", name) if pw1 != "" && FileUtils.Exists(file) # slash would break sed command password = Builtins.mergestring( Builtins.splitstring(password, "/"), "\\/" ) # change the root password in the file /var/lib/lxc/<name>/rootfs/etc/shadow/ cmd = Builtins.sformat( "sed --in-place 's/^root:[^:]*:/root:%1:/' %2", password, file ) out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd)) Builtins.y2security("out: %1", out) end Popup.ClearFeedback Popup.Message( Builtins.sformat( _("Container '%1' was successfully created."), name ) ) break end end deep_copy(ret) end |
- (Object) Connect(name)
Launch console for selected container Return PID of console process
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# File '../../src/include/lxc/dialogs.rb', line 393 def Connect(name) cmd = Builtins.sformat("xterm -e lxc-console -n %1", name) pid = Convert.to_integer(SCR.Execute(path(".process.start_shell"), cmd)) pid end |
- (Object) CreateContainerConfig(name, ip, subnet, bridge, template)
Create configuration file for a container
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# File '../../src/include/lxc/dialogs.rb', line 53 def CreateContainerConfig(name, ip, subnet, bridge, template) # busy message Popup.ShowFeedback("", _("Creating Configuration...")) # lxc-createconfig -n <name> [-i <ipaddr/cidr>] [-b <bridge>] [-t <template] cmd = Builtins.sformat("echo 'y' | lxc-createconfig -n %1", name) if ip != "" cmd = Ops.add(Ops.add(cmd, " -i "), ip) if subnet != "" cmd = Ops.add(cmd, "/") if Builtins.substring(subnet, 0, 1) != "/" cmd = Ops.add(cmd, subnet) end end cmd = Ops.add(Ops.add(cmd, " -b "), bridge) if bridge != "" cmd = Ops.add(Ops.add(cmd, " -t "), template) if template != "" out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd)) Popup.ClearFeedback if Ops.get_integer(out, "exit", 0) != 0 Builtins.y2milestone("cmd: %1", cmd) Builtins.y2milestone("lxc-createconfig output: %1", out) # error message Report.Error( Builtins.sformat( _("Error occured during configuration:\n\n%1"), Ops.get_string(out, "stdout", "") ) ) return false end true end |
- (Object) DestroyContainer(name)
Delete given container
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# File '../../src/include/lxc/dialogs.rb', line 365 def DestroyContainer(name) # busy message Popup.ShowFeedback( "", Builtins.sformat("Destroying Container '%1'...", name) ) cmd = Ops.add("lxc-destroy -n ", name) out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd)) Popup.ClearFeedback if Ops.get_integer(out, "exit", 0) != 0 Builtins.y2milestone("lxc-destroy output: %1", out) # error message Report.Error( Builtins.sformat( _("Error while destroying:\n\n%1"), Ops.get_string(out, "stdout", "") ) ) return false end true end |
- (Object) initialize_lxc_dialogs(include_target)
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# File '../../src/include/lxc/dialogs.rb', line 32 def initialize_lxc_dialogs(include_target) textdomain "lxc" Yast.import "FileUtils" Yast.import "IP" Yast.import "Label" Yast.import "Popup" Yast.import "Progress" Yast.import "Report" Yast.import "Security" Yast.import "String" Yast.import "Wizard" Yast.include include_target, "lxc/helps.rb" # PIDs of running consoles (indexed by lxc names) @console_pids = {} end |
- (Object) OverviewDialog
Overview of existing Linux Containers
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# File '../../src/include/lxc/dialogs.rb', line 403 def OverviewDialog # LXC overview dialog caption caption = _("LXC Configuration") # current container selected = "" # mapping of containers to their state lxc_map = {} # update status of the buttons according to current item = lambda do |selected2| return if selected2 == nil || selected2 == "" running = Ops.get(lxc_map, selected2, false) UI.ChangeWidget(Id(:start), :Enabled, !running) UI.ChangeWidget(Id(:stop), :Enabled, running) return if Lxc.textmode if Ops.get(@console_pids, selected2) == nil UI.ReplaceWidget( Id(:rp_console), # button label PushButton(Id(:connect), _("Connect")) ) UI.ChangeWidget(Id(:connect), :Enabled, running) else UI.ReplaceWidget( Id(:rp_console), # button label PushButton(Id(:disconnect), _("Disconnect")) ) end nil end # update table with fresh items update_table = lambda do lxc_map = Lxc.GetContainers lxc_list = Builtins.maplist(lxc_map) do |name, status| Item( name, status ? # container status _("Running") : # container status _("Stopped") ) end UI.ChangeWidget(Id(:table), :Items, lxc_list) if Builtins.size(lxc_list) == 0 Builtins.foreach([:table, :destroy, :start, :stop, :connect]) do |t| UI.ChangeWidget(Id(t), :Enabled, false) end else UI.SetFocus(Id(:table)) UI.ChangeWidget(Id(:table), :CurrentItem, selected) if selected != "" selected = Convert.to_string(UI.QueryWidget(Id(:table), :CurrentItem)) .call(selected) end nil end contents = HBox( HSpacing(), VBox( VSpacing(), # button label Right(PushButton(Id(:refresh), _("Refresh"))), # Table header Table( Id(:table), Opt(:notify, :immediate), Header(_("Name"), _("Status")), [] ), HBox( PushButton(Id(:add_button), Opt(:key_F3), Label.CreateButton), # button label PushButton(Id(:destroy), Opt(:key_F5), _("&Destroy")), # button label Right(PushButton(Id(:start), _("&Start"))), # button label PushButton(Id(:stop), _("Sto&p")), ReplacePoint( Id(:rp_console), Lxc.textmode ? HBox() : # button label PushButton(Id(:connect), _("Connect")) ) ), VSpacing() ), HSpacing() ) Wizard.SetContentsButtons( caption, contents, Ops.get_string(@HELPS, "overview", ""), Label.BackButton, Label.FinishButton ) Wizard.HideBackButton update_table.call ret = nil while true # polling only if there's some process to watch if Ops.greater_than(Builtins.size(@console_pids), 0) Builtins.sleep(100) ret = UI.PollInput else ret = UI.UserInput end break if ret == :abort || ret == :cancel || ret == :next || ret == :back if ret == :add_button ret = :add break end selected = Convert.to_string(UI.QueryWidget(Id(:table), :CurrentItem)) console_pid = Ops.get(@console_pids, selected) # check the status of console process if console_pid != nil && SCR.Read(path(".process.running"), console_pid) != true Builtins.y2milestone("console process is dead") @console_pids = Builtins.remove(@console_pids, selected) .call(selected) next end .call(selected) if ret == :table update_table.call if ret == :refresh if ret == :start StartContainer(selected) update_table.call end if ret == :connect && console_pid == nil Ops.set(@console_pids, selected, Connect(selected)) .call(selected) end if ret == :disconnect && console_pid != nil Builtins.y2milestone( "killing console proces with PID %1...", console_pid ) SCR.Execute(path(".process.kill"), console_pid, 15) # FIXME timeout + kill -9 @console_pids = Builtins.remove(@console_pids, selected) .call(selected) end if ret == :stop StopContainer(selected) update_table.call end if ret == :destroy && Popup.YesNo( Builtins.sformat( _("Are you sure to delete container '%1'?"), selected ) ) StopContainer(selected) DestroyContainer(selected) update_table.call end end deep_copy(ret) end |
- (Object) StartContainer(name)
Start selected container
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# File '../../src/include/lxc/dialogs.rb', line 317 def StartContainer(name) # start container as a deamon, so it survives YaST's exit cmd = Builtins.sformat("lxc-start -d -n %1", name) out = Convert.to_map(SCR.Execute(path(".target.bash_output"), cmd)) if Ops.get_integer(out, "exit", 0) != 0 Report.Error( Builtins.sformat( _("Error while starting container:\n\n%1"), Ops.add( Ops.get_string(out, "stdout", ""), Ops.get_string(out, "stderr", "") ) ) ) return false end if Lxc.textmode # message, %1 is a name Popup.Message( Builtins.sformat( _( "The Container '%1' was started in the background.\nUse 'lxc-console' command to connect to the running Container." ), name ) ) end true end |
- (Object) StopContainer(name)
Stop given container
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# File '../../src/include/lxc/dialogs.rb', line 350 def StopContainer(name) Builtins.y2milestone( "result of lxc-stop: %1", SCR.Execute(path(".target.bash_output"), Ops.add("lxc-stop -n ", name)) ) if Ops.get(@console_pids, name) != nil # close the console if stopping SCR.Execute(path(".process.kill"), Ops.get(@console_pids, name), 15) end nil end |