Class: Yast::DrbdClass

Inherits:
Module
  • Object
show all
Defined in:
../../src/modules/Drbd.rb

Instance Method Summary (collapse)

Instance Method Details

- (Object) del_empty_item(old_map)



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# File '../../src/modules/Drbd.rb', line 452

def del_empty_item(old_map)
  old_map = deep_copy(old_map)
  new_map = deep_copy(old_map)
  Builtins.foreach(
    Convert.convert(old_map, :from => "map", :to => "map <string, any>")
  ) do |key, val|
    if Ops.is_map?(val)
      Ops.set(new_map, key, del_empty_item(Convert.to_map(val))) #if (is(val, string))
    else
      if Builtins.size(Convert.to_string(val)) == 0
        Ops.set(new_map, key, nil)
      end 
      #new_map = remove(new_map, key);
    end
  end

  deep_copy(new_map)
end

- (Object) finding_local(section)



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# File '../../src/modules/Drbd.rb', line 140

def finding_local(section)
  # Get hostname to find out the local disk/port/IP
  out = Convert.to_map(
    SCR.Execute(
      path(".target.bash_output"),
      "echo -n `uname -n|cut -d '.' -f 1`"
    )
  )
  # strip is necessary
  @local_hostname = Ops.get_string(out, "stdout", "")
  Builtins.y2milestone("Local hostname is %1", @local_hostname)

  # Find all disks and ports of local node
  @resource_config.each do |resname, resconfig|
    Builtins.y2debug("Resconf %1 has config %2 ",
      resname, resconfig)

    next if resconfig == nil || resconfig == {}

    resconfig["on"].each do |nodename, conf|
      if @local_hostname == nodename
        if section == "disk"
          disk = conf["disk"]
          Builtins.y2debug("Using local disk %1 for DRBD.", disk)
          if !@local_disks_ori.include?(disk)
            @local_disks_ori.push(disk)
          end

        elsif section == "port"
          port = conf["address"].split(":")[1]
          Builtins.y2debug("Using port %1 for DRBD.", port)
          if !@local_ports.include?(port)
            @local_ports.push(port)
          end
        end

        break
      end
    end

  end

  nil
end

- (Object) format_lvm_filter



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# File '../../src/modules/Drbd.rb', line 559

def format_lvm_filter()
  Builtins.y2milestone("Change LVM filter automatically.")

  filter_list = []
  r_format = "\"r|%s|\""
  reject_list = [ "\"r|/dev/block/.*|\"", "\"r|/dev/.*/by-path/.*|\"",
                  "\"r|/dev/.*/by-id/.*|\"" ]
  filter_ori = Ops.get(@lvm_config, "filter").to_s.strip()
  Builtins.y2debug("Original filter is %1", filter_ori)

  # Remove the [] and convert string to list to check
  temp_length = filter_ori.length - 2
  if temp_length < 1
    # Should at least including "[]"
    filter_str = ""
  else
    filter_str = filter_ori[1,temp_length]
  end

  filter_list_tmp = filter_str.split(",")

  # Remove the extra space in filter field
  # [].push is FIFO, insert(0,x) is stack
  filter_list_tmp.each do |field|
    filter_list.push(field.strip())
  end

  reject_list.each do |regular|
    if !filter_list.include?(regular)
      filter_list.insert( 0, regular )
    end
  end
  Builtins.y2debug("Temp filter list is %1", filter_list)

  @local_disks_added.each do |newdisk|
    # Reject always need to be added in the first
    filter_list.insert( 0, r_format % newdisk )
  end

  filters = "[ " + filter_list.join(", ") + " ]"
  Builtins.y2debug("Modified filter is %1", filters)
  Ops.set(@lvm_config, "filter", filters)

  nil
end

- (Object) main



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# File '../../src/modules/Drbd.rb', line 35

def main
  textdomain "drbd"

  Yast.import "Popup"
  Yast.import "Progress"
  Yast.import "Report"
  Yast.import "Summary"
  Yast.import "Service"
  Yast.import "SuSEFirewall"
  Yast.import "SuSEFirewallServices"

  Yast.import "Mode"
  Yast.import "PackageSystem"

  @proposal_valid = false
  @modified = false
  @global_config = {}
  @lvm_config = {}
  @auto_lvm_filter = true
  @resource_config = {}
  @drbd_dir = "/etc"
  @start_daemon = false
  @config_name = {
    "disk_s"  => ["on-io-error", "size"],
    "syncer"  => ["rate", "al-extents"],
    "net"     => [
      "timeout",
      "connect-int",
      "ping-int",
      "max-buffers",
      "unplug-watermark",
      "max-epoch-size",
      "sndbuf-size",
      "ko-count"
    ],
    "startup" => ["wfc-timeout", "degr-wfc-timeout"]
  }
  @local_hostname = ""
  @local_ports = []
  @local_disks_ori = []
  @local_disks_added = []

  @global_error = ""
end

- (Object) prepare_conf_file



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# File '../../src/modules/Drbd.rb', line 80

def prepare_conf_file
  merge_script = Ops.add(
    Ops.add("\n\t\tpushd ", @drbd_dir),
    " > /dev/null 2>&1\n" +
      "\t\tcat drbd.conf | while read line; do\n" +
      "\t\t\ts=`echo $line | awk '{print $1}'`;\n" +
      "\t\t\tif [[ x$s =~ xinclude ]]; then\n" +
      "\t\t\t\tFNAME=`echo $line | sed 's/include//; s/;//g; s/\"//g'`;\n" +
      "\t\t\t\tls $FNAME >/dev/null 2>&1 && cat $FNAME;\n " +
      "\t\t\telse\n" +
      "\t\t\t\techo $line;\n" +
      "\t\t\tfi\n" +
      "\t\tdone > drbd.conf.YaST2prepare \n" +
      "\t\tpopd > /dev/null 2>&1\n" +
      "\t"
  )

  if SCR.Execute(
      path(".target.bash"),
      Ops.add(
        Ops.add("/usr/bin/grep '^[ \t]*include' ", @drbd_dir),
        "/drbd.conf"
      )
    ) == 0
    out = Convert.to_map(
      SCR.Execute(path(".target.bash_output"), merge_script)
    )
    if Ops.get_integer(out, "exit", 0) != 0 ||
        Builtins.size(Ops.get_string(out, "stderr", "")) != 0
      @global_error = Ops.add(
        _("Failed to merge separated DRBD conf files\n"),
        Ops.get_string(out, "stderr", "")
      )
      Builtins.y2error(
        "Failed to merge separated DRBD conf files:\n%1",
        out
      )
      return false
    end
  else
    r = SCR.Execute(
      path(".target.bash"),
      Ops.add(
        Ops.add(
          Ops.add(Ops.add("/bin/cp ", @drbd_dir), "/drbd.conf "),
          @drbd_dir
        ),
        "/drbd.conf.YaST2prepare"
      )
    )
    if r != 0
      Builtins.y2error("Failed to write drbd.conf.YaST2prepare")
      @global_error = _("Failed to write drbd.conf.YaST2prepare")
      return false
    end
  end

  true
end

- (Object) Read



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# File '../../src/modules/Drbd.rb', line 185

def Read
  # DRBD read dialog caption
  caption = _("Initializing DRBD Configuration")

  # We do not set help text here, because it was set outside
  Progress.New(
    caption,
    " ",
    5,
    [
      _("Read global settings"),
      _("Read resources"),
      _("Read LVM configurations"),
      _("Read daemon status"),
      _("Read SuSEFirewall Settings")
    ],
    [
      _("Reading global settings..."),
      _("Reading resources..."),
      _("Reading LVM configurations..."),
      _("Reading daemon status..."),
      _("Read SuSEFirewall Settings"),
      _("Finished")
    ],
    ""
  )

  Progress.NextStage

  out = Convert.to_map(
    SCR.Execute(
      path(".target.bash_output"),
      "echo -n `uname -r|grep -Eo \"default|smp|bigsmp|desktop|pae|xen|xenpae|debug|ppc64|iseries64\"`"
    )
  )
  krbd_kmp_arch = Ops.get_string(out, "stdout", "default")

  # BSC#939338, change back to use kmp package and drbd-utils for user space
  if !Mode.test &&
      !PackageSystem.CheckAndInstallPackagesInteractive(
        ["drbd", Ops.add("drbd-kmp-", krbd_kmp_arch), "drbd-utils"]
      )
    return false
  end

  if Ops.greater_than(
      SCR.Read(path(".target.size"), Ops.add(@drbd_dir, "/drbd.conf")),
      0
    )
    Builtins.y2milestone("DRBD conf file is %1/drbd.conf", @drbd_dir)

    return false if prepare_conf_file == false

    # 		//merge include file
    # 		if (SCR::Execute(.target.bash, "/usr/bin/grep '^[ \t]*include' " + drbd_dir + "/drbd.conf") == 0)
    # 		{
    # 			if (Popup::YesNo(_("Warning: YaST2 DRBD module will rename all included files ") +
    # 				_(" for DRBD into a supported schema. Do you want to continue?")))
    # 			{
    # 				string merge_script = "
    #                        pushd " + drbd_dir + " > /dev/null 2>&1
    #                        cat drbd.conf | while read line; do
    #                          s=`echo $line | awk '{print $1}'`;
    #                          if [[ x$s =~ xinclude ]]; then
    #                             cat `echo $line | sed 's/include//' | sed 's/;//g' | sed 's/\"//g'`;
    #                          else
    #                             echo $line;
    #                          fi
    #                        done > drbd.conf.YaST2prepare
    #                        popd > /dev/null 2>&1
    # 				";
    # 				map out = (map) SCR::Execute(.target.bash_output, merge_script);
    # 				if (out["exit"]:0 != 0 || size(out["stderr"]:"") != 0)
    # 				{
    # 					y2error("Failed to merge separated configuration files:\n	exit code = %1\n	stderr = %2", out["exit"]:0, out["stderr"]:"");
    # 					Popup::Error(_("Failed to merge separated configuration files."));
    # 					return false;
    # 				}
    # 			}
    # 			else
    # 			{
    # 				return false;
    # 			}
    # 		}
    # 		else
    # 		{
    # 			map out = (map)SCR::Execute(.target.bash, "/bin/cp " + drbd_dir + "/drbd.conf " + drbd_dir + "/drbd.conf.YaST2prepare");
    # 			if (out["exit"]:0 != 0) {
    # 				y2error("Failed to prepare drbd.conf for reading");
    # 				return false;
    # 			}
    # 		}
    #
    # 		map out = (map)SCR::Execute(.target.bash_output, "/bin/mkdir -p " + drbd_dir + "/drbd.d");
    # 		if (out["exit"]:0 != 0) {
    # 			y2error("Failed to prepare the directory for DRBD");
    # 			return false;
    # 		}

    #read global configs
    Builtins.foreach(
      ["disable-ip-verification", "minor-count", "dialog-refresh"]
    ) do |key|
      val = Convert.to_string(
        SCR.Read(Builtins.topath(Builtins.sformat(".drbd.global.%1", key)))
      )
      Ops.set(@global_config, key, val)
    end
    if Ops.get(@global_config, "minor-count") == nil
      Ops.set(@global_config, "minor-count", "5")
    end
    if Ops.get(@global_config, "dialog-refresh") == nil
      Ops.set(@global_config, "dialog-refresh", "1")
    end

    #read LVM configs via /etc/lvm/lvm.conf
    #All of them under "devices" section
    ["filter", "write_cache_state", "cache_dir"].each do |key|
      val = Convert.to_string(
        SCR.Read(Builtins.topath(Builtins.sformat(".drbd_lvm.value.devices.%1", key)))
      )
      Ops.set(@lvm_config, key, val)
      Builtins.y2debug("drbd_lvm.devices.%1 is %2", key, val)
    end

    if Ops.get(@lvm_config, "filter") == nil
      # The default value is get from HA doc
      Ops.set(@lvm_config, "filter", "[ \"r|/dev/sda.*|\" ]")
    end
    if Ops.get(@lvm_config, "write_cache_state") == nil
      Ops.set(@lvm_config, "write_cache_state", "0")
    end
    if Ops.get(@lvm_config, "cache_dir") == nil
      Ops.set(@lvm_config, "cache_dir", "/etc/lvm/cache")
    end

    #read resources configs
    res_names = SCR.Dir(Builtins.topath(".drbd.resources"))
    Builtins.foreach(res_names) do |resname|
      config = {}
      res_configs = SCR.Dir(
        Builtins.topath(Builtins.sformat(".drbd.resources.%1", resname))
      )
      Builtins.foreach(["protocol"]) do |resconf|
        if Builtins.contains(res_configs, resconf)
          val = Convert.to_string(
            SCR.Read(
              Builtins.topath(
                Builtins.sformat(".drbd.resources.%1.%2", resname, resconf)
              )
            )
          )
          Ops.set(config, resconf, val)
        end
      end
      Builtins.foreach(@config_name) do |r, l|
        if Builtins.contains(res_configs, r)
          cf = {}
          Builtins.foreach(l) do |k|
            v = Convert.to_string(
              SCR.Read(
                Builtins.topath(
                  Builtins.sformat(
                    ".drbd.resources.%1.%2.%3",
                    resname,
                    r,
                    k
                  )
                )
              )
            )
            if v != nil
              Ops.set(cf, k, v)
              Builtins.y2debug("%1 %2 %3 is %4", resname, r, k, v)
            end
          end
          Ops.set(config, r, cf) if Ops.greater_than(Builtins.size(cf), 0)
        end
      end
      if Builtins.contains(res_configs, "on")
        nodes = SCR.Dir(
          Builtins.topath(
            Builtins.sformat(".drbd.resources.%1.on", resname)
          )
        )
        nodescf = {}
        Builtins.foreach(nodes) do |n|
          nodecf = {}
          Builtins.foreach(["device", "disk", "meta-disk", "address"]) do |k|
            v = Convert.to_string(
              SCR.Read(
                Builtins.topath(
                  Builtins.sformat(
                    ".drbd.resources.%1.on.%2.%3",
                    resname,
                    n,
                    k
                  )
                )
              )
            )
            if v != nil
              Ops.set(nodecf, k, v)
              Builtins.y2debug("%1 on %2 %3 is %4", resname, n, k, v)
            end
          end
          if Ops.greater_than(Builtins.size(nodecf), 0)
            Ops.set(nodescf, n, nodecf)
          end
        end
        if Ops.greater_than(Builtins.size(nodescf), 0)
          Ops.set(config, "on", nodescf)
        end
      end
      if Ops.greater_than(Builtins.size(config), 0)
        Ops.set(@resource_config, resname, config)
      end
    end
  else
    SCR.Execute(path(".target.bash"), "rm /etc/drbd.conf.YaST2prepare")
    Builtins.y2milestone("DRBD conf file %1/drbd.conf not found", @drbd_dir)
  end

  Builtins.y2milestone("read resource_config=%1", @resource_config)

  # Find all info like disks belong to local node
  finding_local("disk")

  Progress.NextStage
  @start_daemon = Service.Enabled("drbd")

  Progress.NextStage

  # read the SuSEfirewall2
  SuSEFirewall.Read

  # Progress finished
  Progress.NextStage

  Progress.Finish
  @modified = false
  true
end

- (Object) recursive_write_map(cur_path, the_map)



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# File '../../src/modules/Drbd.rb', line 429

def recursive_write_map(cur_path, the_map)
  the_map = deep_copy(the_map)
  Builtins.foreach(the_map) do |key, val|
    if Ops.is_map?(val) && val != nil
      SCR.Write(Builtins.add(cur_path, key), nil)
      recursive_write_map(
        Builtins.add(cur_path, key),
        Convert.convert(val, :from => "any", :to => "map <string, any>")
      )
    else
      Builtins.y2debug(
        "write conf file: %1=%2",
        Builtins.add(cur_path, key),
        val
      )
      SCR.Write(Builtins.add(cur_path, key), val)
    end
  end

  nil
end

- (Object) restore_yast_save_files



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# File '../../src/modules/Drbd.rb', line 471

def restore_yast_save_files
  SCR.Execute(
    path(".target.bash"),
    "/bin/mv /etc/drbd.conf.YaST2save /etc/drbd.conf"
  )
  SCR.Execute(
    path(".target.bash"),
    "/usr/bin/rename .YaST2save '' /etc/drbd.d/*.YaST2save"
  )

  nil
end

- (Object) validate_configure



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# File '../../src/modules/Drbd.rb', line 484

def validate_configure
  out = {}


  if Ops.less_than(SCR.Read(path(".target.size"), "/etc/drbd.conf"), 0)
    return true
  end

  out = Convert.to_map(
    SCR.Execute(
      path(".target.bash_output"),
      "/bin/cp /etc/drbd.conf /etc/drbd.conf.bak"
    )
  )
  if Ops.get_integer(out, "exit", 0) != 0
    @global_error = _("Failed to backup drbd.conf")
    Builtins.y2error("Failed to backup drbd.conf\n %1", out)
    return false
  end

  out = Convert.to_map(
    SCR.Execute(path(".target.bash_output"), "/bin/echo>/etc/drbd.conf")
  )
  if Ops.get_integer(out, "exit", 0) != 0
    @global_error = _("Failed to clean drbd.conf for drbdadm test")
    Builtins.y2error("Failed to clean drbd.conf for drbdadm test\n%1", out)
    return false
  end

  Builtins.y2milestone("drbdadm res=%1", @resource_config)
  r = Builtins.foreach(
    Convert.convert(
      @resource_config,
      :from => "map",
      :to   => "map <string, any>"
    )
  ) do |key, val|
    out = Convert.to_map(
      SCR.Execute(
        path(".target.bash_output"),
        Ops.add(
          Ops.add("/sbin/drbdadm -t /etc/drbd.d/", key),
          ".res sh-nop"
        )
      )
    )
    if Ops.get_integer(out, "exit", 0) != 0
      @global_error = Builtins.sformat(
        _("Invalid configuration of resource %1\n%2"),
        key,
        Ops.get_string(out, "stderr", "")
      )
      Builtins.y2error("Invalid configuration of resource %1\n%2", key, out)
      next false
    end
  end

  return false if r == false

  if Ops.greater_or_equal(
      SCR.Read(path(".target.size"), "/etc/drbd.conf.bak"),
      0
    ) &&
      SCR.Execute(
        path(".target.bash"),
        "/bin/mv /etc/drbd.conf.bak /etc/drbd.conf"
      ) != 0
    @global_error = _("Failed to bring drbd.conf back")
    Builtins.y2error("Failed to bring drbd.conf back")
    return false
  end

  true
end

- (Object) Write



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# File '../../src/modules/Drbd.rb', line 605

def Write
  # DRBD write dialog caption
  caption = _("Writing DRBD Configuration")

  # Comment code below due to change the "booting" status
  # won't change modified flag
  #return true if !@modified

  # We do not set help text here, because it was set outside
  Progress.New(
    caption,
    " ",
    5,
    [
      _("Write global settings"),
      _("Write resources"),
      _("Write LVM configurations"),
      _("Set daemon status"),
      _("Write the SuSEfirewall settings")
    ],
    [
      _("Writing global settings..."),
      _("Writing resources..."),
      _("Writing LVM configurations..."),
      _("Setting daemon status..."),
      _("Writing the SuSEFirewall settings"),
      _("Finished")
    ],
    ""
  )


  if SCR.Execute(
      path(".target.bash"),
      Ops.add(Ops.add("/bin/mkdir -p ", @drbd_dir), "/drbd.d")
    ) != 0
    @global_error = _("Failed to make directory /etc/drbd.d")
    Builtins.y2error("Failed to make directory /etc/drbd.d")
    return false
  end

  #global config here
  Progress.NextStage
  Builtins.y2debug(
    "to write global config: global_config=%1",
    @global_config
  )
  Builtins.foreach(
    ["disable-ip-verification", "minor-count", "dialog-refresh"]
  ) do |key|
    if Ops.get(@global_config, key) != nil
      SCR.Write(
        Builtins.topath(Builtins.sformat(".drbd.global.%1", key)),
        Ops.get(@global_config, key)
      )
    end
  end

  #LVM config here
  #http://docserv.suse.de/documents/SLE-HA11/SLE-ha-nfs-quick/html/
  #art_ha_quick_nfs.html#sec_ha_quick_nfs_initial_lvm_config
  Progress.NextStage
  Builtins.y2debug(
    "to write lvm config: lvm_config=%1",
    @lvm_config
  )

  # Change(add reject rules) filter automatically
  if @auto_lvm_filter && !@local_disks_added.empty?
    format_lvm_filter
  end

  ["filter", "write_cache_state"].each do |key|
    if Ops.get(@lvm_config, key) != nil
      SCR.Write(
        Builtins.topath(Builtins.sformat(".drbd_lvm.value.devices.%1", key)),
        Ops.get(@lvm_config, key)
      )
    end
  end

  if Ops.get(@lvm_config, "write_cache_state") == "0"
    SCR.Execute(
      path(".target.bash"),
      Builtins.sformat("/bin/rm -r %1/.cache >/dev/null 2>&1",
      Ops.get(@lvm_config, "cache_dir"))
    )
  end

  #resource config here
  Progress.NextStage
  @resource_config = del_empty_item(@resource_config)
  recursive_write_map(
    path(".drbd.resources"),
    Convert.convert(
      @resource_config,
      :from => "map",
      :to   => "map <string, any>"
    )
  )
  Builtins.y2debug(
    "to write resource config: resource_config=%1",
    @resource_config
  )

  SCR.Write(Builtins.topath(".drbd"), "")

  if validate_configure == false
    restore_yast_save_files
    return false
  end

  Progress.NextStage
  if @start_daemon
    Service.Enable("drbd")
    if Service.Status("drbd") == 0
      Service.Restart("drbd")
    else
      Service.Start("drbd")
    end
  else
    Service.Disable("drbd")
    Service.Stop("drbd")
  end
  Progress.NextStage

  # open all local ports
  finding_local("port")

  # DRBD only use TCP port
  SuSEFirewallServices.SetNeededPortsAndProtocols(
    "service:drbd",
    { "tcp_ports" => @local_ports }
  )

  SuSEFirewall.Write

  # Progress finished
  Progress.NextStage
  Progress.Finish
  true
end