diff --git a/config.ru b/config.ru
index d7e04c2..1cefb2b 100644
--- a/config.ru
+++ b/config.ru
@@ -1,13 +1,20 @@
 require 'rack'
-require_relative 'lxc-exporter'
+require_relative 'lib/lxc_collector'
+require_relative 'lib/authorized_keys_collector'
 require 'prometheus/client/formats/text'
 
 run lambda {|env|
   req = Rack::Request.new env
   case req.path
-  when "/metrics"
+
+  when '/authorized_keys'
+    collector = AuthorizedKeysCollector.new
+    [200, {"Content-Type" => "text/javascript"}, [collector.collect.to_json]}]
+
+  when '/metrics'
     collector = LxcCollector.new
     [200, {"Content-Type" => "text/plain"}, [Prometheus::Client::Formats::Text.marshal( collector.collect)]]
+
   else
     [404, {"Content-Type" => "text/plain"}, ["Not found\nYou want to try /metrics?\n"]]
   end
diff --git a/lib/file-statfs.rb b/lib/file-statfs.rb
new file mode 100644
index 0000000..a1cdc6f
--- /dev/null
+++ b/lib/file-statfs.rb
@@ -0,0 +1,140 @@
+require 'fiddle'
+require 'fiddle/import'
+
+class File
+  module Statfs
+    Magics = {}
+    Line = <<~EOF
+      ADFS	0xadf5
+      AFFS	0xadff
+      AFS	0x5346414F
+      AUTOFS	0x0187
+      CODA	0x73757245
+      CRAMFS		0x28cd3d45
+      CRAMFS_WEND	0x453dcd28
+      DEBUGFS	0x64626720
+      SECURITYFS	0x73636673
+      SELINUX		0xf97cff8c
+      SMACK		0x43415d53
+      RAMFS		0x858458f6
+      TMPFS		0x01021994
+      HUGETLBFS 	0x958458f6
+      SQUASHFS		0x73717368
+      ECRYPTFS	0xf15f
+      EFS		0x414A53
+      EROFS_V1	0xE0F5E1E2
+      EXT2	0xEF53
+      EXT3	0xEF53
+      XENFS	0xabba1974
+      EXT4	0xEF53
+      BTRFS	0x9123683E
+      NILFS	0x3434
+      F2FS	0xF2F52010
+      HPFS	0xf995e849
+      ISOFS	0x9660
+      JFFS2	0x72b6
+      XFS		0x58465342
+      PSTOREFS		0x6165676C
+      EFIVARFS		0xde5e81e4
+      HOSTFS	0x00c0ffee
+      OVERLAYFS	0x794c7630
+      MINIX	0x137F
+      MINIX2	0x138F
+      MINIX2	0x2468
+      MINIX22	0x2478
+      MINIX3	0x4d5a
+      MSDOS	0x4d44
+      NCP		0x564c
+      NFS		0x6969
+      OCFS2	0x7461636f
+      OPENPROM	0x9fa1
+      QNX4	0x002f
+      QNX6	0x68191122
+      AFS_FS		0x6B414653
+      REISERFS	0x52654973
+      REISERFS	"ReIsErFs"
+      REISER2FS	"ReIsEr2Fs"
+      REISER2FS_JR	"ReIsEr3Fs"
+      SMB		0x517B
+      CGROUP	0x27e0eb
+      CGROUP2	0x63677270
+      RDTGROUP	0x7655821
+      STACK_END		0x57AC6E9D
+      TRACEFS          0x74726163
+      V9FS		0x01021997
+      BDEVFS            0x62646576
+      DAXFS             0x64646178
+      BINFMTFS          0x42494e4d
+      DEVPTS	0x1cd1
+      BINDERFS	0x6c6f6f70
+      FUTEXFS	0xBAD1DEA
+      PIPEFS            0x50495045
+      PROC	0x9fa0
+      SOCKFS		0x534F434B
+      SYSFS		0x62656572
+      USBDEVICE	0x9fa2
+      MTD_INODE_FS      0x11307854
+      ANON_INODE_FS	0x09041934
+      BTRFS_TEST	0x73727279
+      NSFS		0x6e736673
+      BPF_FS		0xcafe4a11
+      AAFS		0x5a3c69f0
+      ZONEFS		0x5a4f4653
+      UDF		0x15013346
+      BALLOON_KVM	0x13661366
+      ZSMALLOC		0x58295829
+      DMA_BUF		0x444d4142
+      DEVMEM		0x454d444d
+      Z3FOLD		0x33
+      PPC_CMM 0xc7571590
+    EOF
+    Line.each_line do |l|
+      n, v = l.split(/\s+/)[0..1]
+      v =
+        case v
+        when /^0x(\h+)$/ then $1.to_i 16
+        when /^"([^"]+)"$/ then $1
+        else raise "Unknown value: #$1"
+        end
+      Magics[v] = n.downcase.to_sym
+    end
+
+    extend Fiddle::Importer
+    dlload Fiddle.dlopen( nil)
+
+    Struct_statfs = struct <<~EOS
+      long type,
+      long bsize,
+      unsigned long blocks,
+      unsigned long bfree,
+      unsigned long bavail,
+      unsigned long files,
+      unsigned long ffree,
+      int fsid[2],
+      long namelen,
+      long frsize,
+      long flags,
+      long spare[4]
+    EOS
+
+    class Struct_statfs
+      def fstypename
+        Magics[type]
+      end
+
+      def to_h
+        {type: type, fstypename: fstypename, bsize: bsize, blocks: blocks, bfree: bfree, bavail: bavail, files: files, ffree: ffree, fsid: fsid, namelen: namelen, frsize: frsize, flags: flags, spare: spare}
+      end
+    end
+
+    StatfsFun = Fiddle::Function.new handler['statfs'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT
+    #extern 'int statfs( const char *__file, struct statfs *__buf)'
+
+    def self.new file
+      buf = Struct_statfs.malloc
+      val = StatfsFun.call file, buf
+      raise SystemCallError.new( "statfs(#{file.inspect})", Fiddle.last_error)  unless val == 0
+      buf
+    end
+  end
+end
diff --git a/lib/lxc-exporter/mount_info.rb b/lib/lxc-exporter/mount_info.rb
new file mode 100644
index 0000000..5d50e51
--- /dev/null
+++ b/lib/lxc-exporter/mount_info.rb
@@ -0,0 +1,25 @@
+require 'pathname'
+
+class MountInfo
+  attr_reader :major, :minor, :mp, :dev, :type, :opts
+
+  # 4979 4977 0:213 / /proc rw,nosuid,nodev,noexec,relatime shared:2416 - proc proc rw
+
+  def initialize *args
+    i = args.find_index {|x| '-' == x }
+    args2 = args[(i+1)..-1]
+    ma, mi = args[2].split ':'
+    @major, @minor, @mp, @dev, @type, @opts =
+      ma.to_i, mi.to_i, args[4], args2[1], args2[0], args2[2].split( ',')
+  end
+
+  class << self
+    def parse line
+      new *line.split( ' ')
+    end
+
+    def of pid
+      Pathname.new( "/proc/#{pid}/mountinfo").readlines.map {|l| parse l }
+    end
+  end
+end
diff --git a/lib/lxc-exporter/os_release.rb b/lib/lxc-exporter/os_release.rb
new file mode 100644
index 0000000..765df03
--- /dev/null
+++ b/lib/lxc-exporter/os_release.rb
@@ -0,0 +1,38 @@
+require 'pathname'
+
+class OsRelease
+  Path = Pathname.new '/etc/os-release'
+
+  class <<self
+    def parse txt
+      r =
+        txt.each_line.
+        map do |l|
+          k, v =
+            *case l.chomp
+            when /^([^=]+)="(.*)"$/ then [$1, $2]
+            when /^([^=]+)=(.*)$/ then [$1,$2]
+            else next
+            end
+          [ k.downcase.to_sym, v.sub( /^"/, '').sub( /"$/, '') ]
+        end.
+        compact.
+        to_h
+      new r
+    end
+
+    def read()  parse Path.read  if Path.exist?  end
+  end
+
+  def initialize( h)  @h = h.freeze  end
+  def to_h()  @h.dup  end
+  def []( n)  @h[n]  end
+
+  def missing_method n, *a
+    if a.empty? and @h.has_key?( n)
+      @h[n]
+    else
+      super n, *a
+    end
+  end
+end
diff --git a/lib/lxc_collector.rb b/lib/lxc_collector.rb
new file mode 100755
index 0000000..9d48244
--- /dev/null
+++ b/lib/lxc_collector.rb
@@ -0,0 +1,170 @@
+#!/usr/bin/env ruby
+
+require 'pathname'
+require 'json'
+require 'prometheus/client'
+require 'lxc'
+
+require_relative 'ns'
+require_relative 'file-statfs'
+require_relative 'lxc-exporter/os_release'
+require_relative 'lxc-exporter/mount_info'
+require_relative 'lxc_extend'
+
+=begin
+class LXC::CT
+  def initialize name
+    extend Fiddle::Importer
+    dlload Fiddle.dlopen( nil)
+
+    extern 'lxc_container *lxc_container_new( const char* name, const char* config_path)'
+
+    def initialize name, config = nil
+      lxc_container_new name, config
+    end
+  end
+end
+=end
+
+class LxcCollector
+  include Prometheus::Client
+
+  CTStates = { aborting: -1, stopped: 0, starting: 1, stopping: 2, running: 3 }
+
+  def statfs ct, mis
+    mis.each do |mi|
+      next if %w[devpts devtmpfs fuse.lxcfs].include? mi.type
+      statfs = File::Statfs.new mi.mp
+      yield ct, mi.mp, statfs
+    end
+  end
+
+  def initialize registry = nil
+    @prometheus ||= Registry.new
+    @up     = Gauge.new :lxc_up, labels: %i[id name], docstring: 'Is CT running?'
+    @state  = Gauge.new :lxc_state, labels: %i[id name],
+      docstring: "State of CT (#{CTStates.map{|n,i|"#{i}=#{n}"}.join', '})"
+    @info   = Gauge.new :lxc_filesystem_info,           
+      labels: %i[id mountpoint name fstype], docstring: 'CT Info'
+    @totalb = Gauge.new :lxc_filesystem_total_bytes,    
+      labels: %i[id mountpoint], docstring: 'Total bytes in filesystem'
+    @freeb  = Gauge.new :lxc_filesystem_free_bytes,     
+      labels: %i[id mountpoint], docstring: 'Free bytes in filesystem'
+    @availb = Gauge.new :lxc_filesystem_available_bytes,
+      labels: %i[id mountpoint], docstring: 'Free bytes available to unprivileged user'
+    @totalf = Gauge.new :lxc_filesystem_total_files,    
+      labels: %i[id mountpoint], docstring: 'Total files in filesystem'
+    @freef  = Gauge.new :lxc_filesystem_free_files,     
+      labels: %i[id mountpoint], docstring: 'Free files in filesystem'
+    @os_release = Gauge.new :lxc_os_release_info,       
+      labels: %i[id name os_id os_name os_pretty_name os_version_codename],
+      docstring: 'OS release info'
+    @os_version = Gauge.new :lxc_os_version_id,
+      labels: %i[id], docstring: 'OS release (distribution) version'
+    @pkgs_upgradable = Gauge.new :lxc_packages_upgradable,
+      labels: %i[id], docstring: 'Count of upgradable packages'
+    @pkgs_last_update = Gauge.new :lxc_packages_last_update,
+      labels: %i[id], docstring: 'Last successfull source update'
+    [
+      @up, @state,
+      @info, @totalb, @freeb, @availb, @totalf, @freef,
+      @os_release, @os_version,
+      @pkgs_upgradable, @pkgs_last_update
+    ].each {|g| @prometheus.register g }
+  end
+
+  AptLastUpdateFile = Pathname.new '/var/cache/apt/pkgcache.bin'
+
+  def forked wr
+    LXC.running_containers do |ct|
+      pid = ct.init_pid
+      mis = MountInfo.of pid
+      NS.change pid, :pid, :mnt do
+        name = ct.config_item( 'lxc.uts.name')
+        statfs ct, mis do |ct, mp, st|
+          next  unless st.fstypename and 0 < st.blocks
+          st = st.to_h.merge mp: mp, id: ct.name, name: name
+          wr.puts [:mountpoint, st].to_json
+        end
+        osr = OsRelease.read
+        if osr
+          wr.puts [:os_release, {
+            id: ct.name, name: name,
+            os_id:               osr[:id],
+            os_name:             osr[:name],
+            os_pretty_name:      osr[:pretty_name],
+            os_version_id:       osr[:version_id].to_i,
+            os_version_codename: osr[:version_codename]
+          }].to_json
+          case osr[:id].to_sym
+          when :debian
+            upgradable = nil
+            pid = 
+              IO.popen %w[apt list --upgradable], err: "/dev/null" do |apt|
+                upgradable = apt.readlines.length - 1
+              end
+            wr.puts [:pkgs, {
+              id: ct.name, name: name, upgradable: upgradable,
+              last_update: AptLastUpdateFile.stat.mtime.to_f,
+            }].to_json
+          end
+        end
+      end
+    end
+    wr.close
+    exit 0
+  end
+
+  def collect
+    rd, wr = IO.pipe
+    pid = fork do
+      rd.close
+      forked wr
+    end
+    wr.close
+    LXC.containers do |ct|
+      labels = { id: ct.name, name: ct.config_item( 'lxc.uts.name') }
+      @up.set ct.running? ? 1 : 0, labels: labels
+      @state.set CTStates[ct.state], labels: labels
+    end
+    rd.each_line do |l|
+      l = JSON.parse l, symbolize_names: true
+      case l[0].to_sym
+
+      when :mountpoint
+        st = OpenStruct.new l[1]
+        labels = { id: st.id, mountpoint: st.mp }
+        @info.set 1, labels: labels.merge( name: st.name, fstype: st.fstypename)
+        @totalb.set st.bsize*st.blocks, labels: labels
+        @freeb.set  st.bsize*st.bfree,  labels: labels
+        @availb.set st.bsize*st.bavail, labels: labels
+        @totalf.set st.files, labels: labels
+        @freef.set  st.ffree, labels: labels
+
+      when :os_release
+        osr = OpenStruct.new l[1]
+        @os_release.set 1, labels: {
+          id: osr.id, name: osr.name,
+          os_id: osr.os_id,
+          os_name: osr.os_name,
+          os_pretty_name: osr.os_pretty_name,
+          os_version_codename: osr.os_version_codename
+        }
+        @os_version.set osr.os_version_id, labels: { id: osr.id }
+
+      when :pkgs
+        as = OpenStruct.new l[1]
+        @pkgs_last_update.set as.last_update, labels: { id: as.id }
+        @pkgs_upgradable.set  as.upgradable, labels: { id: as.id }
+      end
+    end
+    rd.close
+    Process.wait pid
+    @prometheus
+  end
+end
+
+if Pathname.new( __FILE__).expand_path == Pathname.new( $0).expand_path
+  require 'prometheus/client/formats/text'
+  puts Prometheus::Client::Formats::Text.marshal( LxcCollector.new.collect)
+end
diff --git a/lib/lxc_extend.rb b/lib/lxc_extend.rb
new file mode 100644
index 0000000..0dccf95
--- /dev/null
+++ b/lib/lxc_extend.rb
@@ -0,0 +1,22 @@
+require 'lxc'
+
+module LXC
+  class <<self
+    def containers &exe
+      return to_enum __method__  unless block_given?
+      LXC.
+        list_containers.
+        map( &LXC::Container.method( :new)).
+        each &exe
+    end
+
+    def running_containers &exe
+      return to_enum __method__  unless block_given?
+      LXC.
+        list_containers.
+        map( &LXC::Container.method( :new)).
+        select( &:running?).
+        each &exe
+    end
+  end
+end
diff --git a/lib/ns.rb b/lib/ns.rb
new file mode 100644
index 0000000..defab21
--- /dev/null
+++ b/lib/ns.rb
@@ -0,0 +1,61 @@
+require 'fiddle'
+require 'fiddle/import'
+
+class NS
+  extend Fiddle::Importer
+  dlload Fiddle.dlopen( nil)
+  SetNS_Function = Fiddle::Function.new handler['setns'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT
+
+  class <<self
+    def setns fd, t
+      r = SetNS_Function.call fd.to_i, t.to_i
+      SystemCallError.new "setns(#{fd.to_i})", Fiddle.last_error  if -1 == r
+      r
+    end
+
+    def _open_nsfd pid, type
+      File.open "/proc/%d/ns/%s" % [pid, type]
+    end
+
+    def open pid, *types, &exe
+      ns = new pid, *types
+      if block_given?
+        begin yield ns
+        ensure ns.close
+        end
+      else ns
+      end
+    end
+
+    def change pid, *types, &exe
+      open pid, *types do |ns|
+        ns.change &exe
+      end
+    end
+  end
+
+  attr_reader :pid, :fds, :types
+
+  def initialize pid, *types
+    @pid, @fds = pid, {}
+    types.map {|t| @fds[t] = self.class._open_nsfd pid, t }
+  end
+
+  def close
+    @fds.each {|t, fd| fd.close }
+  end
+
+  def change &block
+    @owns = @fds.map {|t, _f| Own[t] }
+    begin
+      @fds.each {|type, fd| self.class.setns fd, 0 }
+      yield
+    ensure
+      @owns.each {|fd| self.class.setns fd, 0 }
+    end
+  end
+
+  Own = Hash.new {|h, ns| h[ns] = _open_nsfd $$, ns }
+end
+
+
diff --git a/lxc-exporter.rb b/lxc-exporter.rb
deleted file mode 100755
index f2608b9..0000000
--- a/lxc-exporter.rb
+++ /dev/null
@@ -1,412 +0,0 @@
-#!/usr/bin/env ruby
-
-require 'pathname'
-require 'fiddle'
-require 'fiddle/import'
-require 'json'
-
-require 'lxc'
-require 'prometheus/client'
-
-=begin
-class LXC::CT
-  def initialize name
-    extend Fiddle::Importer
-    dlload Fiddle.dlopen( nil)
-
-    extern 'lxc_container *lxc_container_new( const char* name, const char* config_path)'
-
-    def initialize name, config = nil
-      lxc_container_new name, config
-    end
-  end
-end
-=end
-
-class File
-  module Statfs
-    Magics = {}
-    Line = <<~EOF
-      ADFS	0xadf5
-      AFFS	0xadff
-      AFS	0x5346414F
-      AUTOFS	0x0187
-      CODA	0x73757245
-      CRAMFS		0x28cd3d45
-      CRAMFS_WEND	0x453dcd28
-      DEBUGFS	0x64626720
-      SECURITYFS	0x73636673
-      SELINUX		0xf97cff8c
-      SMACK		0x43415d53
-      RAMFS		0x858458f6
-      TMPFS		0x01021994
-      HUGETLBFS 	0x958458f6
-      SQUASHFS		0x73717368
-      ECRYPTFS	0xf15f
-      EFS		0x414A53
-      EROFS_V1	0xE0F5E1E2
-      EXT2	0xEF53
-      EXT3	0xEF53
-      XENFS	0xabba1974
-      EXT4	0xEF53
-      BTRFS	0x9123683E
-      NILFS	0x3434
-      F2FS	0xF2F52010
-      HPFS	0xf995e849
-      ISOFS	0x9660
-      JFFS2	0x72b6
-      XFS		0x58465342
-      PSTOREFS		0x6165676C
-      EFIVARFS		0xde5e81e4
-      HOSTFS	0x00c0ffee
-      OVERLAYFS	0x794c7630
-      MINIX	0x137F
-      MINIX2	0x138F
-      MINIX2	0x2468
-      MINIX22	0x2478
-      MINIX3	0x4d5a
-      MSDOS	0x4d44
-      NCP		0x564c
-      NFS		0x6969
-      OCFS2	0x7461636f
-      OPENPROM	0x9fa1
-      QNX4	0x002f
-      QNX6	0x68191122
-      AFS_FS		0x6B414653
-      REISERFS	0x52654973
-      REISERFS	"ReIsErFs"
-      REISER2FS	"ReIsEr2Fs"
-      REISER2FS_JR	"ReIsEr3Fs"
-      SMB		0x517B
-      CGROUP	0x27e0eb
-      CGROUP2	0x63677270
-      RDTGROUP	0x7655821
-      STACK_END		0x57AC6E9D
-      TRACEFS          0x74726163
-      V9FS		0x01021997
-      BDEVFS            0x62646576
-      DAXFS             0x64646178
-      BINFMTFS          0x42494e4d
-      DEVPTS	0x1cd1
-      BINDERFS	0x6c6f6f70
-      FUTEXFS	0xBAD1DEA
-      PIPEFS            0x50495045
-      PROC	0x9fa0
-      SOCKFS		0x534F434B
-      SYSFS		0x62656572
-      USBDEVICE	0x9fa2
-      MTD_INODE_FS      0x11307854
-      ANON_INODE_FS	0x09041934
-      BTRFS_TEST	0x73727279
-      NSFS		0x6e736673
-      BPF_FS		0xcafe4a11
-      AAFS		0x5a3c69f0
-      ZONEFS		0x5a4f4653
-      UDF		0x15013346
-      BALLOON_KVM	0x13661366
-      ZSMALLOC		0x58295829
-      DMA_BUF		0x444d4142
-      DEVMEM		0x454d444d
-      Z3FOLD		0x33
-      PPC_CMM 0xc7571590
-    EOF
-    Line.each_line do |l|
-      n, v = l.split(/\s+/)[0..1]
-      v =
-        case v
-        when /^0x(\h+)$/ then $1.to_i 16
-        when /^"([^"]+)"$/ then $1
-        else raise "Unknown value: #$1"
-        end
-      Magics[v] = n.downcase.to_sym
-    end
-
-    extend Fiddle::Importer
-    dlload Fiddle.dlopen( nil)
-
-    Struct_statfs = struct <<~EOS
-      long type,
-      long bsize,
-      unsigned long blocks,
-      unsigned long bfree,
-      unsigned long bavail,
-      unsigned long files,
-      unsigned long ffree,
-      int fsid[2],
-      long namelen,
-      long frsize,
-      long flags,
-      long spare[4]
-    EOS
-
-    class Struct_statfs
-      def fstypename
-        Magics[type]
-      end
-
-      def to_h
-        {type: type, fstypename: fstypename, bsize: bsize, blocks: blocks, bfree: bfree, bavail: bavail, files: files, ffree: ffree, fsid: fsid, namelen: namelen, frsize: frsize, flags: flags, spare: spare}
-      end
-    end
-
-    StatfsFun = Fiddle::Function.new handler['statfs'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT
-    #extern 'int statfs( const char *__file, struct statfs *__buf)'
-
-    def self.new file
-      buf = Struct_statfs.malloc
-      val = StatfsFun.call file, buf
-      raise SystemCallError.new( "statfs(#{file.inspect})", Fiddle.last_error)  unless val == 0
-      buf
-    end
-  end
-end
-
-class NS
-  extend Fiddle::Importer
-  dlload Fiddle.dlopen( nil)
-  SetNS_Function = Fiddle::Function.new handler['setns'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT
-
-  class <<self
-    def setns fd, t
-      r = SetNS_Function.call fd.to_i, t.to_i
-      SystemCallError.new "setns(#{fd.to_i})", Fiddle.last_error  if -1 == r
-      r
-    end
-
-    def _open_nsfd pid, type
-      File.open "/proc/%d/ns/%s" % [pid, type]
-    end
-
-    def open pid, *types, &exe
-      ns = new pid, *types
-      if block_given?
-        begin yield ns
-        ensure ns.close
-        end
-      else ns
-      end
-    end
-
-    def change pid, *types, &exe
-      open pid, *types do |ns|
-        ns.change &exe
-      end
-    end
-  end
-
-  attr_reader :pid, :fds, :types
-
-  def initialize pid, *types
-    @pid, @fds = pid, {}
-    types.map {|t| @fds[t] = self.class._open_nsfd pid, t }
-  end
-
-  def close
-    @fds.each {|t, fd| fd.close }
-  end
-
-  def change &block
-    @owns = @fds.map {|t, _f| Own[t] }
-    begin
-      @fds.each {|type, fd| self.class.setns fd, 0 }
-      yield
-    ensure
-      @owns.each {|fd| self.class.setns fd, 0 }
-    end
-  end
-
-  Own = Hash.new {|h, ns| h[ns] = _open_nsfd $$, ns }
-end
-
-class MountInfo
-  attr_reader :major, :minor, :mp, :dev, :type, :opts
-  # 4979 4977 0:213 / /proc rw,nosuid,nodev,noexec,relatime shared:2416 - proc proc rw
-  def initialize *args
-    i = args.find_index {|x| '-' == x }
-    args2 = args[(i+1)..-1]
-    ma, mi = args[2].split ':'
-    @major, @minor, @mp, @dev, @type, @opts =
-      ma.to_i, mi.to_i, args[4], args2[1], args2[0], args2[2].split( ',')
-  end
-
-  class << self
-    def parse line
-      new *line.split( ' ')
-    end
-
-    def of pid
-      Pathname.new( "/proc/#{pid}/mountinfo").readlines.map {|l| parse l }
-    end
-  end
-end
-
-class OsRelease
-  Path = Pathname.new '/etc/os-release'
-  class <<self
-    def parse txt
-      r =
-        txt.each_line.
-        map do |l|
-          k, v =
-            *case l.chomp
-            when /^([^=]+)="(.*)"$/ then [$1, $2]
-            when /^([^=]+)=(.*)$/ then [$1,$2]
-            else next
-            end
-          [ k.downcase.to_sym, v.sub( /^"/, '').sub( /"$/, '') ]
-        end.
-        compact.
-        to_h
-      new r
-    end
-
-    def read()  parse Path.read  if Path.exist?  end
-  end
-
-  def initialize( h)  @h = h.freeze  end
-  def to_h()  @h.dup  end
-  def []( n)  @h[n]  end
-
-  def missing_method n, *a
-    if a.empty? and @h.has_key?( n)
-      @h[n]
-    else
-      super n, *a
-    end
-  end
-end
-
-class LxcCollector
-  def statfs ct, mis
-    mis.each do |mi|
-      next if %w[devpts devtmpfs fuse.lxcfs].include? mi.type
-      statfs = File::Statfs.new mi.mp
-      yield ct, mi.mp, statfs
-    end
-  end
-
-  def initialize registry = nil
-    @prometheus ||= Prometheus::Client::Registry.new
-    @info   = Prometheus::Client::Gauge.new :lxc_filesystem_info,           
-      labels: %i[id mountpoint name fstype], docstring: 'CT Info'
-    @totalb = Prometheus::Client::Gauge.new :lxc_filesystem_total_bytes,    
-      labels: %i[id mountpoint], docstring: 'Total bytes in filesystem'
-    @freeb  = Prometheus::Client::Gauge.new :lxc_filesystem_free_bytes,     
-      labels: %i[id mountpoint], docstring: 'Free bytes in filesystem'
-    @availb = Prometheus::Client::Gauge.new :lxc_filesystem_available_bytes,
-      labels: %i[id mountpoint], docstring: 'Free bytes available to unprivileged user'
-    @totalf = Prometheus::Client::Gauge.new :lxc_filesystem_total_files,    
-      labels: %i[id mountpoint], docstring: 'Total files in filesystem'
-    @freef  = Prometheus::Client::Gauge.new :lxc_filesystem_free_files,     
-      labels: %i[id mountpoint], docstring: 'Free files in filesystem'
-    @os_release = Prometheus::Client::Gauge.new :lxc_os_release_info,       
-      labels: %i[id name os_id os_name os_pretty_name os_version_codename],
-      docstring: 'OS release info'
-    @os_version = Prometheus::Client::Gauge.new :lxc_os_version_id,
-      labels: %i[id], docstring: 'OS release (distribution) version'
-    @pkgs_upgradable = Prometheus::Client::Gauge.new :lxc_packages_upgradable,
-      labels: %i[id], docstring: 'Count of upgradable packages'
-    @pkgs_last_update = Prometheus::Client::Gauge.new :lxc_packages_last_update,
-      labels: %i[id], docstring: 'Last successfull source update'
-    [
-      @info, @totalb, @freeb, @availb, @totalf, @freef,
-      @os_release, @os_version,
-      @pkgs_upgradable, @pkgs_last_update
-    ].each {|g| @prometheus.register g }
-  end
-
-  def running_containers &exe
-    return to_enum __method__  unless block_given?
-    LXC.
-      list_containers.
-      map {|n| LXC::Container.new n }.
-      select( &:running?).
-      each &exe
-  end
-
-  AptLastUpdateFile = Pathname.new '/var/cache/apt/pkgcache.bin'
-
-  def forked wr
-    running_containers do |ct|
-      pid = ct.init_pid
-      mis = MountInfo.of pid
-      NS.change pid, :pid, :mnt do
-        name = ct.config_item( 'lxc.uts.name')
-        statfs ct, mis do |ct, mp, st|
-          next  unless st.fstypename and 0 < st.blocks
-          st = st.to_h.merge mp: mp, id: ct.name, name: name
-          wr.puts [:mountpoint, st].to_json
-        end
-        osr = OsRelease.read
-        if osr
-          wr.puts [:os_release, {
-            id: ct.name, name: name,
-            os_id:               osr[:id],
-            os_name:             osr[:name],
-            os_pretty_name:      osr[:pretty_name],
-            os_version_id:       osr[:version_id].to_i,
-            os_version_codename: osr[:version_codename]
-          }].to_json
-          case osr[:id].to_sym
-          when :debian
-            upgradable = nil
-            pid = 
-              IO.popen %w[apt list --upgradable], err: "/dev/null" do |apt|
-                upgradable = apt.readlines.length - 1
-              end
-            wr.puts [:pkgs, {
-              id: ct.name, name: name, upgradable: upgradable,
-              last_update: AptLastUpdateFile.stat.mtime.to_f,
-            }].to_json
-          end
-        end
-      end
-    end
-    wr.close
-    exit 0
-  end
-
-  def collect
-    rd, wr = IO.pipe
-    pid = fork do
-      rd.close
-      forked wr
-    end
-    wr.close
-    rd.each_line do |l|
-      l = JSON.parse l, symbolize_names: true
-      case l[0].to_sym
-      when :mountpoint
-        st = OpenStruct.new l[1]
-        labels = {id: st.id, mountpoint: st.mp}
-        @info.set 1, labels: labels.merge( name: st.name, fstype: st.fstypename)
-        @totalb.set st.bsize*st.blocks, labels: labels
-        @freeb.set  st.bsize*st.bfree,  labels: labels
-        @availb.set st.bsize*st.bavail, labels: labels
-        @totalf.set st.files, labels: labels
-        @freef.set  st.ffree, labels: labels
-      when :os_release
-        osr = OpenStruct.new l[1]
-        @os_release.set 1, labels: { id: osr.id, name: osr.name,
-          os_id: osr.os_id,
-          os_name: osr.os_name,
-          os_pretty_name: osr.os_pretty_name,
-          os_version_codename: osr.os_version_codename
-        }
-        @os_version.set osr.os_version_id, labels: {id: osr.id}
-      when :pkgs
-        as = OpenStruct.new l[1]
-        @pkgs_last_update.set as.last_update, labels: { id: as.id }
-        @pkgs_upgradable.set  as.upgradable, labels: { id: as.id }
-      end
-    end
-    rd.close
-    Process.wait pid
-    @prometheus
-  end
-end
-
-if Pathname.new( __FILE__).expand_path == Pathname.new( $0).expand_path
-  require 'prometheus/client/formats/text'
-  puts Prometheus::Client::Formats::Text.marshal( LxcCollector.new.collect)
-end