LXD drivers update

SConstruct

@@ -221,6 +221,7 @@ else:
 # libxml2
 main_env.ParseConfig('xml2-config --libs --cflags')
 
+svncterm_path = 'src/vmm_mad/remotes/lib/lxd/svncterm_server/SConstruct'
 
 # SCONS scripts to build
 build_scripts=[
@@ -269,9 +270,16 @@ build_scripts=[
     'src/im_mad/collectd/SConstruct',
     'src/client/SConstruct',
     'src/docker_machine/SConstruct',
-    'src/vmm_mad/remotes/lib/lxd/svncterm_server/SConstruct'
+    svncterm_path
 ]
 
+# disable svncterm
+svncterm = ARGUMENTS.get('svncterm', 'yes')
+if svncterm == 'no':
+    build_scripts.remove(svncterm_path)
+else:
+    pass
+
 for script in build_scripts:
     env = main_env.Clone()
     SConscript(script, exports='env')

src/vmm_mad/remotes/lib/lxd/catfstab

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# Sanitize cat arguments to run safely under sudo
+# Access container fstab for OpenNebula containers. Example:
+# /var/lib/lxd/storage-pools/default/containers/one-34/rootfs/etc/fstab
+
+echo $1 | grep -q '/[^[:space:]]\+/one-[0-9]\+/rootfs/etc/fstab$' && [ -f $1 ] && cat $1

src/vmm_mad/remotes/lib/lxd/container.rb

@@ -392,8 +392,6 @@ def new_disk_mapper(disk)
 
             ds = "#{ds_path}/#{ds_id}/#{vm_id}/disk.#{disk_id}"
 
-            Command.execute("#{Mapper::COMMANDS[:chmod_nfs]} #{ds}", false)
-
             _rc, out, _err = Command.execute("#{Mapper::COMMANDS[:file]} #{ds}", false)
 
             case out

src/vmm_mad/remotes/lib/lxd/mapper/mapper.rb

@@ -57,7 +57,7 @@ class Mapper
         :mount      => 'sudo mount',
         :umount     => 'sudo umount',
         :kpartx     => 'sudo kpartx',
-        :nbd        => 'sudo qemu-nbd',
+        :nbd        => 'sudo -u root -g oneadmin qemu-nbd',
         :su_mkdir   => 'sudo mkdir -p',
         :mkdir      => 'mkdir -p',
         :cat        => 'sudo cat',
@@ -66,7 +66,6 @@ class Mapper
         :e2fsck     => 'sudo e2fsck',
         :resize2fs  => 'sudo resize2fs',
         :xfs_growfs => 'sudo xfs_growfs',
-        :chmod_nfs  => 'chmod o+w',
         :rbd        => 'sudo rbd --id'
     }
 
@@ -182,18 +181,19 @@ def map(one_vm, disk, directory)
     def unmap(one_vm, disk, directory)
         OpenNebula.log_info "Unmapping disk at #{directory}"
 
-        sys_parts  = lsblk('')
-
-        return false if !sys_parts
+        sys_parts = lsblk('')
 
+        return false unless sys_parts
+
         partitions = []
         device = ''
+        real_path = directory
 
         ds = one_vm.lxdrc[:datastore_location] + "/#{one_vm.sysds_id}"
-        real_ds = File.readlink(ds) if File.symlink?(ds)
-
-        real_path = directory
-        real_path = real_ds + directory.split(ds)[-1] if directory.include?(ds)
+        if File.symlink?(ds)
+            real_ds = File.readlink(ds)
+            real_path = real_ds + directory.split(ds)[-1] if directory.include?(ds)
+        end
 
         sys_parts.each { |d|
             if d['mountpoint'] == real_path
@@ -213,13 +213,15 @@ def unmap(one_vm, disk, directory)
                 break if !partitions.empty?
             }
 
-        partitions.delete_if { |p| !p['mountpoint'] }
+            partitions.delete_if { |p| !p['mountpoint'] }
+
+            partitions.sort! { |a,b|  
+                b['mountpoint'].length <=> a['mountpoint'].length 
+            }
+
+        umount(partitions)
 
-        partitions.sort! { |a,b|  
-            b['mountpoint'].length <=> a['mountpoint'].length 
-        }
 
-        umount(partitions)
 
         do_unmap(device, one_vm, disk, real_path)
 

src/vmm_mad/remotes/lib/lxd/mapper/qcow2.rb

@@ -33,6 +33,9 @@ def do_map(one_vm, disk, directory)
         dsrc = disk_source(one_vm, disk)
         cmd  = "#{COMMANDS[:nbd]} -c #{device} #{dsrc}"
 
+        ds = one_vm.lxdrc[:datastore_location] + "/#{one_vm.sysds_id}"
+        File.chmod(0664, dsrc) if File.symlink?(ds)
+
         rc, _out, err = Command.execute(cmd, true)
 
         if rc != 0 

src/vmm_mad/remotes/lib/lxd/opennebula-lxd

@@ -19,4 +19,4 @@
 #
 
 Cmnd_Alias ONE_MAPPER = /bin/lsblk, /sbin/losetup, /bin/mount, /bin/umount, /sbin/kpartx, /usr/bin/qemu-nbd, /bin/mkdir, /usr/bin/catfstab, /sbin/e2fsck, /sbin/resize2fs, /usr/sbin/xfs_growfs, /usr/bin/rbd
-oneadmin ALL=(ALL) NOPASSWD: ONE_MAPPER
+oneadmin ALL=(ALL:ALL) NOPASSWD: ONE_MAPPER