<feature>[kvm]: support take snapshot on VM offline

compute/src/main/java/org/zstack/compute/vm/VmInstanceManagerImpl.java

@@ -895,7 +895,7 @@ private void handle(APICreateVmNicMsg msg) {
         FlowChain flowChain = FlowChainBuilder.newSimpleFlowChain();
         flowChain.setName(String.format("create-nic-on-l3-network-%s", msg.getL3NetworkUuid()));
         flowChain.then(new NoRollbackFlow() {
-            String __name__ = "create-nic-and-presist-to-db";
+            String __name__ = "create-nic-and-persist-to-db";
 
             @Override
             public void run(FlowTrigger trigger, Map data) {

conf/db/zsv/V5.0.0__schema.sql

@@ -25,13 +25,12 @@ CREATE TABLE IF NOT EXISTS `zstack`.`VmHostFileVO` (
 
 CREATE TABLE IF NOT EXISTS `zstack`.`VmHostBackupFileVO` (
     `uuid` char(32) NOT NULL UNIQUE,
-    `vmInstanceUuid` char(32) NOT NULL,
+    `resourceUuid` char(32) NOT NULL,
     `type` varchar(64) NOT NULL COMMENT 'NvRam, TpmState',
     `lastOpDate` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
     `createDate` timestamp NOT NULL DEFAULT '1999-12-31 23:59:59',
     PRIMARY KEY (`uuid`),
-    INDEX `idxVmHostBackupFileVOVmInstanceUuid` (`vmInstanceUuid`),
-    UNIQUE KEY `ukVmHostBackupFileVO` (`vmInstanceUuid`, `type`)
+    UNIQUE KEY `ukVmHostBackupFileVO` (`resourceUuid`, `type`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 CREATE TABLE IF NOT EXISTS `zstack`.`VmHostFileContentVO` (

header/src/main/java/org/zstack/header/storage/snapshot/CreateVolumesSnapshotMsg.java

@@ -16,6 +16,8 @@ public class CreateVolumesSnapshotMsg extends NeedReplyMessage implements NeedQu
 
     private List<CreateVolumesSnapshotsJobStruct> volumeSnapshotJobs;
 
+    private boolean backupHostFileIfNeeded;
+
     public String getAccountUuid() {
         return accountUuid;
     }
@@ -44,4 +46,12 @@ public ConsistentType getConsistentType() {
     public void setConsistentType(ConsistentType consistentType) {
         this.consistentType = consistentType;
     }
+
+    public boolean isBackupHostFileIfNeeded() {
+        return backupHostFileIfNeeded;
+    }
+
+    public void setBackupHostFileIfNeeded(boolean backupHostFileIfNeeded) {
+        this.backupHostFileIfNeeded = backupHostFileIfNeeded;
+    }
 }

header/src/main/java/org/zstack/header/storage/snapshot/CreateVolumesSnapshotOverlayInnerMsg.java

@@ -19,6 +19,8 @@ public class CreateVolumesSnapshotOverlayInnerMsg extends NeedReplyMessage imple
 
     private List<String> lockedVolumeUuids;
 
+    private boolean backupHostFileIfNeeded;
+
     public List<String> getLockedVmInstanceUuids() {
         return lockedVmInstanceUuids;
     }
@@ -63,4 +65,12 @@ public ConsistentType getConsistentType() {
     public void setConsistentType(ConsistentType consistentType) {
         this.consistentType = consistentType;
     }
+
+    public boolean isBackupHostFileIfNeeded() {
+        return backupHostFileIfNeeded;
+    }
+
+    public void setBackupHostFileIfNeeded(boolean backupHostFileIfNeeded) {
+        this.backupHostFileIfNeeded = backupHostFileIfNeeded;
+    }
 }

header/src/main/java/org/zstack/header/storage/snapshot/CreateVolumesSnapshotOverlayInnerReply.java

@@ -9,6 +9,7 @@
  */
 public class CreateVolumesSnapshotOverlayInnerReply extends MessageReply {
     private List<VolumeSnapshotInventory> inventories;
+    private List<String> hostBackupFileUuidList;
 
     public List<VolumeSnapshotInventory> getInventories() {
         return inventories;
@@ -17,4 +18,12 @@ public List<VolumeSnapshotInventory> getInventories() {
     public void setInventories(List<VolumeSnapshotInventory> inventories) {
         this.inventories = inventories;
     }
+
+    public List<String> getHostBackupFileUuidList() {
+        return hostBackupFileUuidList;
+    }
+
+    public void setHostBackupFileUuidList(List<String> hostBackupFileUuidList) {
+        this.hostBackupFileUuidList = hostBackupFileUuidList;
+    }
 }

header/src/main/java/org/zstack/header/storage/snapshot/CreateVolumesSnapshotReply.java

@@ -9,6 +9,7 @@
  */
 public class CreateVolumesSnapshotReply extends MessageReply {
     private List<VolumeSnapshotInventory> inventories;
+    private List<String> hostBackupFileUuidList;
 
     public List<VolumeSnapshotInventory> getInventories() {
         return inventories;
@@ -17,4 +18,12 @@ public List<VolumeSnapshotInventory> getInventories() {
     public void setInventories(List<VolumeSnapshotInventory> inventories) {
         this.inventories = inventories;
     }
+
+    public List<String> getHostBackupFileUuidList() {
+        return hostBackupFileUuidList;
+    }
+
+    public void setHostBackupFileUuidList(List<String> hostBackupFileUuidList) {
+        this.hostBackupFileUuidList = hostBackupFileUuidList;
+    }
 }

header/src/main/java/org/zstack/header/vm/additions/VmHostBackupFileVO.java

@@ -1,6 +1,5 @@
 package org.zstack.header.vm.additions;
 
-import org.zstack.header.vm.VmInstanceEO;
 import org.zstack.header.vo.EntityGraph;
 import org.zstack.header.vo.ForeignKey;
 import org.zstack.header.vo.ResourceVO;
@@ -21,13 +20,12 @@
 @Table
 @EntityGraph(
         friends = {
-                @EntityGraph.Neighbour(type = VmInstanceEO.class, myField = "vmInstanceUuid", targetField = "uuid"),
+                @EntityGraph.Neighbour(type = ResourceVO.class, myField = "resourceUuid", targetField = "uuid"),
         }
 )
 public class VmHostBackupFileVO extends ResourceVO {
     @Column
-    @ForeignKey(parentEntityClass = VmInstanceEO.class, onDeleteAction = ForeignKey.ReferenceOption.CASCADE)
-    private String vmInstanceUuid;
+    private String resourceUuid;
     @Column
     @Enumerated(EnumType.STRING)
     private VmHostFileType type;
@@ -36,12 +34,12 @@ public class VmHostBackupFileVO extends ResourceVO {
     @Column
     private Timestamp lastOpDate;
 
-    public String getVmInstanceUuid() {
-        return vmInstanceUuid;
+    public String getResourceUuid() {
+        return resourceUuid;
     }
 
-    public void setVmInstanceUuid(String vmInstanceUuid) {
-        this.vmInstanceUuid = vmInstanceUuid;
+    public void setResourceUuid(String resourceUuid) {
+        this.resourceUuid = resourceUuid;
     }
 
     public VmHostFileType getType() {
@@ -71,7 +69,7 @@ public void setLastOpDate(Timestamp lastOpDate) {
     @Override
     public String toString() {
         return "VmHostBackupFileVO{" +
-        "vmInstanceUuid='" + vmInstanceUuid + '\'' +
+        "resourceUuid='" + resourceUuid + '\'' +
         ", type=" + type +
         ", createDate=" + createDate +
         ", lastOpDate=" + lastOpDate +

header/src/main/java/org/zstack/header/vm/additions/VmHostBackupFileVO_.java

@@ -8,7 +8,7 @@
 
 @StaticMetamodel(VmHostBackupFileVO.class)
 public class VmHostBackupFileVO_ extends ResourceVO_ {
-    public static volatile SingularAttribute<VmHostBackupFileVO, String> vmInstanceUuid;
+    public static volatile SingularAttribute<VmHostBackupFileVO, String> resourceUuid;
     public static volatile SingularAttribute<VmHostBackupFileVO, VmHostFileType> type;
     public static volatile SingularAttribute<VmHostBackupFileVO, Timestamp> createDate;
     public static volatile SingularAttribute<VmHostBackupFileVO, Timestamp> lastOpDate;

plugin/kvm/src/main/java/org/zstack/kvm/efi/BackupVmHostFileMsg.java

@@ -0,0 +1,35 @@
+package org.zstack.kvm.efi;
+
+import org.zstack.header.message.NeedReplyMessage;
+
+import java.util.List;
+
+public class BackupVmHostFileMsg extends NeedReplyMessage {
+    private String vmUuid;
+    private String hostUuid;
+    private List<String> toResourceUuidList;
+
+    public String getVmUuid() {
+        return vmUuid;
+    }
+
+    public void setVmUuid(String vmUuid) {
+        this.vmUuid = vmUuid;
+    }
+
+    public String getHostUuid() {
+        return hostUuid;
+    }
+
+    public void setHostUuid(String hostUuid) {
+        this.hostUuid = hostUuid;
+    }
+
+    public List<String> getToResourceUuidList() {
+        return toResourceUuidList;
+    }
+
+    public void setToResourceUuidList(List<String> toResourceUuidList) {
+        this.toResourceUuidList = toResourceUuidList;
+    }
+}

plugin/kvm/src/main/java/org/zstack/kvm/efi/BackupVmHostFileReply.java

@@ -0,0 +1,17 @@
+package org.zstack.kvm.efi;
+
+import org.zstack.header.message.MessageReply;
+
+import java.util.List;
+
+public class BackupVmHostFileReply extends MessageReply {
+    private List<String> backupFileUuidList;
+
+    public List<String> getBackupFileUuidList() {
+        return backupFileUuidList;
+    }
+
+    public void setBackupFileUuidList(List<String> backupFileUuidList) {
+        this.backupFileUuidList = backupFileUuidList;
+    }
+}

plugin/kvm/src/main/java/org/zstack/kvm/efi/KvmSecureBootExtensions.java

@@ -556,7 +556,7 @@ public boolean skip(Map data) {
             public void run(FlowTrigger trigger, Map data) {
                 context.vmBackupFileVO = Q.New(VmHostBackupFileVO.class)
                         .eq(VmHostBackupFileVO_.type, context.type)
-                        .eq(VmHostBackupFileVO_.vmInstanceUuid, context.vmUuid)
+                        .eq(VmHostBackupFileVO_.resourceUuid, context.vmUuid)
                         .orderByDesc(VmHostBackupFileVO_.lastOpDate)
                         .limit(1)
                         .find();
@@ -835,7 +835,7 @@ public void afterDestroyVm(VmInstanceInventory inv) {
                 .eq(VmHostFileVO_.vmInstanceUuid, vmUuid)
                 .delete();
         SQL.New(VmHostBackupFileVO.class)
-                .eq(VmHostBackupFileVO_.vmInstanceUuid, vmUuid)
+                .eq(VmHostBackupFileVO_.resourceUuid, vmUuid)
                 .delete();
     }