Class: Veewee::Transaction
- Inherits:
-
Object
- Object
- Veewee::Transaction
- Defined in:
- lib/veewee/transaction.rb
Class Method Summary collapse
- .create_snapshot_vmachine(vmname, snapname) ⇒ Object
- .list_snapshots(vmname) ⇒ Object
- .load_snapshot_vmachine(vmname, snapname) ⇒ Object
- .remove_snapshot_vmachine(vmname, snapname) ⇒ Object
- .rollback_snapshot(vmname, snapname) ⇒ Object
- .snapshot_exists(vmname, snapname) ⇒ Object
- .snapshot_version_exists(vmname, snapname) ⇒ Object
Instance Method Summary collapse
- #transaction(name, params, &block) ⇒ Object
- #transaction2(name, options = { :checksum => "nochecksum"}, &block) ⇒ Object
Class Method Details
.create_snapshot_vmachine(vmname, snapname) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 25 def self.create_snapshot_vmachine(vmname,snapname) Veewee::Shell.execute("VBoxManage snapshot '#{vmname}' take '#{snapname}'") end |
.list_snapshots(vmname) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 103 def self.list_snapshots(vmname) snapshotresult=Veewee::Shell.execute("VBoxManage showvminfo --machinereadable '#{vmname}' |grep ^SnapshotName| cut -d '=' -f 2").stdout snapshotlist=snapshotresult.gsub(/\"/,'').split(/\n/) return snapshotlist end |
.load_snapshot_vmachine(vmname, snapname) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 29 def self.load_snapshot_vmachine(vmname,snapname) #if it running , shutdown first if (state_vmachine(vmname)=="running") stop_vmachine(vmname) end Veewee::Shell.execute("VBoxManage snapshot '#{vmname}' restore '#{snapname}'") #sometimes it takes some time to shutdown sleep 2 Veewee::Shell.execute("VBoxManage startvm '#{vmname}'") end |
.remove_snapshot_vmachine(vmname, snapname) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 21 def self.remove_snapshot_vmachine(vmname,snapname) Veewee::Shell.execute("VBoxManage snapshot '#{vmname}' delete '#{snapname}'") end |
.rollback_snapshot(vmname, snapname) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 59 def self.rollback_snapshot(vmname,snapname) delete_flag=false savestate_recover=false if (state_vmachine(vmname)=="running") Veewee::Shell.execute("VBoxManage controlvm '#{vmname}' savestate") savestate_recover=true end list_snapshots(vmname).each { |name| if name.match(/^#{snapname}-/) then delete_flag=true end if (delete_flag) then remove_snapshot_vmachine(vmname,name) end } sleep 2 Veewee::Shell.execute("VBoxManage startvm '#{vmname}'") if (savestate_recover) #Recovering from savestate nukes the network! This trick seem to work #Also within the vm /etc/init.d/networking restart , but that is OS specific #http://www.virtualbox.org/ticket/5666 #http://www.virtualbox.org/ticket/5654 #This is supposed to be fixed: http://www.virtualbox.org/changeset/25205 but alas Veewee::Shell.execute("VBoxManage controlvm '#{vmname}' nic1 nat") Veewee::Shell.execute("VBoxManage controlvm '#{vmname}' setlinkstate1 off") Veewee::Shell.execute("VBoxManage controlvm '#{vmname}' setlinkstate1 on") sleep 2 #hmmm, virtualbox => when recovering from a restore , it looses the nat settings!!! So we need to do this again!! #thebox.ssh_enable_vmachine({:hostport => host_port , :guestport => 22} ) #http://www.virtualbox.org/changeset/25402 #[25402]: NAT: re-establish port-forwarding after savestate / restore state end end |
.snapshot_exists(vmname, snapname) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 41 def self.snapshot_exists(vmname,snapname) list_snapshots(vmname).each { |name| if (name==snapname) then return true end } return false end |
.snapshot_version_exists(vmname, snapname) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 50 def self.snapshot_version_exists(vmname,snapname) list_snapshots(vmname).each { |name| if name.match(/^#{snapname}-/) then return true end } return false end |
Instance Method Details
#transaction(name, params, &block) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 4 def transaction(name,params, &block) end |
#transaction2(name, options = { :checksum => "nochecksum"}, &block) ⇒ Object
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# File 'lib/veewee/transaction.rb', line 7 def transaction2(name,= { :checksum => "nochecksum"}, &block) if snapshot_exists(@vmname,name+"-"+[:checksum]) load_snapshot_vmachine(@vmname,name+"-"+[:checksum]) else if snapshot_version_exists(@vmname,name) rollback_snapshot(@vmname,name) #rollback to snapshot prior to this one end yield create_snapshot_vmachine(@vmname,name+"-"+[:checksum]) end #end end |