vCO Use-Cases

Table of Content

• LittleCMDB (An Orchestrator and WaveMaker project) – Part 1

In Part1 we start with the SQL DB Plugin and create the required database for our need.

• LittleCMDB (An Orchestrator and WaveMaker project) – Part 2

In Part2 we start with the development of our Workflow. We will start with a few elements.

• LittleCMDB (An Orchestrator and WaveMaker project) – Part 3

In Part3 we  finish the  collection of the VM information.

• LittleCMDB (An Orchestrator and WaveMaker project) – Part 4

In Part4 we insert our data into the database and test our created workflow

• LittleCMDB (An Orchestrator and WaveMaker project) – Part 5

In Part5 we create our webview to get a look on our Data in the SQL Database

• LittleCMDB (An Orchestrator and WaveMaker project) – Part 6

In Part6 we will make our Workflow smarter to update the DB with actual VM information

• LittleCMDB (An Orchestrator and WaveMaker project) – Part 7

In Part7 problems with vAPP located virtual machines are fixed

Part6

Let’s have a look on our LittleCMDB. We can capture virtual machines, we insert the captured data into a SQL DB and we have a Website to get a look on our data. Till now, that okay but we have some “problems” with our CMDB. What’s with virtual Machines were the configuration is changed after the first capture? At the moment will we not get this configuration changes. Why we don’t get the changes? In our decision “VM in DB” we have the condition “when the VM is in our DB we go back to NumberofVMs”. We don’t look for configuration changes.

That’s not smart 🙂 ……… This means our DB could be outdated with one week if enough configuration changes were made…

So let’s start and make our LittleCMDB more “production” ready.

First we remove the red dotted line from “VM in DB” to “NumberofVMs”.

First we insert from Bottom to top a Scriptable Task and a Decision. We do this four times. When we are finished your schema should look like mine.

Then we will insert the next Workflows. Here we are on a decision we must made…… We can choose the SQL “Update” workflows or generate Scriptable Task with our own code. I will use scriptable task for the update of the datasets. Why that? When you use the “Update” Workflows, error correction and data search is sometimes a problem. You can only insert “one” value (the value to update the dataset). In the data search, this leads to problems. So I will use scriptable task in which I can insert all needed parameter and my required error correction.

So insert four scriptable workflows on the left of the other workflows.

At the End your schema must look like this:

Don’t worry about the sum of Workflow……it will be very easy 😉

Know we start with the Scriptable Task at the bottom. First we give a name and description. I will call it “GetVMfromVM_Info”. As description you can insert “We read the information from the VM_Info Table split it and comparing it with the actual data.”

Here are the required Variables for the Element:

Local Parameter	Variable Name	Module	Direction	Type
VMName	VMName	GetVMInfofromVM_Info	in	String
VMInfo_Table	VMInfo_Table	GetVMInfofromVM_Info	in	SQL:Table
VMUUID	VMUUID	GetVMInfofromVM_Info	in	String
VMInfofromDB	VMInfofromDB	GetVMInfofromVM_Info	in	SQL:ActiveRecord
datastoreName	datastoreName	GetVMInfofromVM_Info	in	Array/string
cpuCount	cpuCount	GetVMInfofromVM_Info	in	number
memoryMB	memoryMB	GetVMInfofromVM_Info	in	number
CPUNumberfromDB	CPUNumberfromDB	GetVMInfofromVM_Info	out	number
MemNumberfromDB	MemNumberfromDB	GetVMInfofromVM_Info	out	number
VM_Info_Change	VM_info_Change	GetVMInfofromVM_Info	out	Boolean
V_ID	V_ID	GetVMInfofromVM_Info	Out	String

Don’t forget to map the VMInfo_table variable to the VM_Info table.

Here is the required Script for the Task:

// -------------------------------------------------------------
// we search for the Data of the virtual Machine with the Name and the UUID. First we define the search columns
var columns = {
 VMUUID : VMUUID,
 VMName : VMName,

};

// Get the Data from the Table and put them in a SQL Active Record
VMInfofromDB = VMInfo_table.readRecords(columns);
// The data from the SQL Record is a "String" with is separated with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringMem = VMInfofromDB.toString();
// In the Array, we search for the Keyword "MemConfig" under which our Memory configuration is stored
var MemSearch = SplitConfigArraytoStringMem.search("MemConfig");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 10 after the Start Position (MemConfig + = is about 10 positions)
var MemStart = MemSearch + 10;
// Here we split at the beginning of the Value with the rest of the string
var MemStringTemp = SplitConfigArraytoStringMem.slice(MemStart);
// We split on the first "," found. That's our value End
var MemStringEnd = MemStringTemp.search(",");
// Here we take the start and the end we figured out before and save the value into the Variable
MemNumberfromDB = MemStringTemp.slice(0, MemStringEnd);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringCPU = VMInfofromDB.toString();
// In the Array, we search for the Keyword "CPUConfig" under which our Memory configuration is stored
var CPUSearch = SplitConfigArraytoStringCPU.search("CPUConfig");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 10 after the Start Position (CPUConfig + = is about 10 positions)
var CPUStart = CPUSearch + 10;
// Here we split at the beginning of the Value with the rest of the string
var CPUStringTemp = SplitConfigArraytoStringCPU.slice(CPUStart);
// We split on the first "}" found. That's our value End
var CPUStringEnd = CPUStringTemp.search("}");
// Here we take the start and the end we figured out before and save the value into the Variable
CPUNumberfromDB = CPUStringTemp.slice(0, CPUStringEnd);
// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
// The V_ID Field is required to update the SQL DB when there is a change
var SplitConfigArraytoStringVID = VMInfofromDB.toString();
// In the Array, we search for the Keyword "V_ID" under which our V_ID is stored
var VIDSearch = SplitConfigArraytoStringVID.search("VMID");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 5 after the Start Position (VMID + = is about 5 positions)
var VIDStart = VIDSearch + 5;
// Here we split at the beginning of the Value with the rest of the string
var VIDStringTemp = SplitConfigArraytoStringVID.slice(VIDStart);
// We split on the first "," found. That's our value End
var VIDStringEnd = VIDStringTemp.search(",");
// Here we take the start and the end we figured out before and save the value into the Variable
V_ID = VIDStringTemp.slice(0, VIDStringEnd);

//-----------------------------------------------------------------------------------------------------------------
// After we have our "configuration" Values, we have to check if there is a difference between the VM Data and
// the data stored in the DB.

if ((CPUNumberfromDB != cpuCount) || (MemNumberfromDB != memoryMB)){
// When there is a difference, we set the Variable to true
VM_Info_Change = true;}
else {
// When there is no difference, we set the Variable to false
VM_Info_Change = false;}

I made a lot comments in the scripting element so I hope everybody understand the Idea to split the array and get on the DB data.

Next we go to our decision up to the scripting element. We give it a name. I chose “VM_Info_change”. As variable for this decision we need the following:

Local Parameter	Variable Name	Module	Direction	Type
VM_Info_Change	VM_Info_Change	VM_Info_Change	in	boolean

In the Decision field we set the Value to “is true”

At least, we are going to work with the “Scriptable task” to the left. I call it  “Update active record for ‘VM_Info’” Element.  For that, we need the following In- and Outputs

Local Parameter	Variable Name	Module	Direction	Type
VMName	VMName	Update Active Record for ‘VM_Info’	in	String
V_ID	V_ID	Update Active Record for ‘VM_Info’	in	String
VMUUID	VMUUID	Update Active Record for ‘VM_Info’	in	String
cpuCount	cpuCount	Update Active Record for ‘VM_Info’	in	Number
memoryMB	memoryMB	Update Active Record for ‘VM_Info’	in	Number
MemNumberfromDB	MemNumberfromDB	Update Active Record for ‘VM_Info’	in	Number
CPUNumberfromDB	CPUNumberfromDB	Update Active Record for ‘VM_Info’	in	Number
VMInfo_table	VMInfo_table	Update Active Record for ‘VM_Info’	in	SQL:Table
VMInfoRead_result	VMInfoRead_result	Update Active Record for ‘VM_Info’	in	SQL:ActiveRecord
UpdateResult_VM_Info	UpdateResult_VM_Info	Update Active Record for ‘VM_Info’	out	Number

Here is the script we insert into the Scripting field:

// we need the original values to load the record from the DB
var NewArray = new Array(V_ID,VMUUID,VMName,CPUNumberfromDB,MemNumberfromDB)

// we search for the record in the DB with the data from there
VMInfoRead_result = System.getModule("com.vmware.library.sql").findUniqueRecord(VMInfo_table,NewArray);

var columns = {
 VMID : V_ID,
 VMUUID : VMUUID,
 VMName : VMName,
 CPUConfig : cpuCount,
 MemConfig : memoryMB
};
UpdateResult_VM_Info = VMInfo_table.updateRecord(VMInfoRead_result, columns);
System.log("Update DB with new virtual machine information")

Now we are going to connect the first Elements. We start with the “VM_in_DB” Element and connect it with the “red” line to the “GetVMfromVM_Info” Element. The “GetVMfromVM_Info” will be connected to the “VM_Info_Change” element. From this element we connect the “true” (the green line) to “Update active record for ‘VM_Info” and the “false” (the red line) to the “Scriptable Task above. As last connection we draw the line from “Update active record for ‘VM_Info” to the Scriptable Task above. When you are ready your connections must look like my.

After we have finished our connections, we go further with the “Scriptable  Task” Element we have already connected. First we insert a name and description. I use as name “GetVMfromHost_info” and as description “Get the Information from the database regarding the Host information”. Then we have to define our needed variables:

Local Parameter	Variable Name	Module	Direction	Type
VMHost_Table	VMHost_Table	GetVMfromHost_info	in	SQL:Table
VMUUID	VMUUID	GetVMfromHost_info	in	String
V_ID	V_ID	GetVMfromHost_info	in	string
VMInfofromDB	VMInfofromDB	GetVMfromHost_info	in	SQL:ActiveRecord
runningHostName	runningHostName	GetVMfromHost_info	in	String
clusterName	clusterName	GetVMfromHost_info	in	String
resourcePoolName	resourcePoolName	GetVMfromHost_info	in	String
folderName	folderName	GetVMfromHost_info	in	String
HostfromDB	HostfromDB	GetVMfromHost_info	out	String
ClusterfromDB	ClusterfromDB	GetVMfromHost_info	out	String
RPfromDB	RPfromDB	GetVMfromHost_info	out	String
FolderfromDB	FolderfromDB	GetVMfromHost_info	out	String
VM_Host_Change	VM_Host_Change	GetVMfromHost_info	out	boolean

Also here is it required, to point the Variable “VMHost_table” to the “VM_Host” Table

Then we can start our scripting. In the basic, the following scripting is the same as we already did for the “GetVMInfofromVM_Info” table. Here is the Script:

// -------------------------------------------------------------
// we search for the Data of the virtual Machine with the Name and the UUID. First we define the search columns
var columns = {
 VMID : V_ID,
 VMUUID : VMUUID,
};

// Get the Data from the Table and put them in a SQL Active Record
VMInfofromDB = VMHost_table.readRecords(columns);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringHost = VMInfofromDB.toString();
// In the Array, we search for the Keyword
var HostSearch = SplitConfigArraytoStringHost.search("Host");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 5 after the Start Position
var HostStart = HostSearch + 5;
// Here we split at the beginning of the Value with the rest of the string
var HostStringTemp = SplitConfigArraytoStringHost.slice(HostStart);
// We split on the first "," found. That's our value End
var HostStringEnd = HostStringTemp.search(",");
// Here we take the start and the end we figured out before and save the value into the Variable
HostfromDB = HostStringTemp.slice(0, HostStringEnd);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringCluster = VMInfofromDB.toString();
// In the Array, we search for the Keyword
var ClusterSearch = SplitConfigArraytoStringCluster.search("Cluster");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 8 after the Start Position
var ClusterStart = ClusterSearch + 8;
// Here we split at the beginning of the Value with the rest of the string
var ClusterStringTemp = SplitConfigArraytoStringCluster.slice(ClusterStart);
// We split on the first "}" found. That's our value End
var ClusterStringEnd = ClusterStringTemp.search(",");
// Here we take the start and the end we figured out before and save the value into the Variable
ClusterfromDB = ClusterStringTemp.slice(0, ClusterStringEnd);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringFolder = VMInfofromDB.toString();
// In the Array, we search for the Keyword
var FolderSearch = SplitConfigArraytoStringFolder.search("Folder");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 7 after the Start Position
var FolderStart = FolderSearch + 7;
// Here we split at the beginning of the Value with the rest of the string
var FolderStringTemp = SplitConfigArraytoStringCluster.slice(FolderStart);
// We split on the first "," found. That's our value End
var FolderStringEnd = FolderStringTemp.search(",");
// Here we take the start and the end we figured out before and save the value into the Variable
FolderfromDB = FolderStringTemp.slice(0, FolderStringEnd);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringRP = VMInfofromDB.toString();
// In the Array, we search for the Keyword
var RPSearch = SplitConfigArraytoStringRP.search("ResourcePool");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 13 after the Start Position
var RPStart = RPSearch + 13;
// Here we split at the beginning of the Value with the rest of the string
var RPStringTemp = SplitConfigArraytoStringRP.slice(RPStart);
// We split on the first "}" found. That's our value End
var RPStringEnd = RPStringTemp.search("}");
// Here we take the start and the end we figured out before and save the value into the Variable
RPfromDB = RPStringTemp.slice(0, RPStringEnd);

//-----------------------------------------------------------------------------------------------------------------
// After we have our "configuration" Values, we have to check if there is a difference between the VM Data and
// the data stored in the DB.
if ((HostfromDB != runningHostName) || (ClusterfromDB != clusterName) || (RPfromDB != resourcePoolName) || (FolderfromDB != folderName)){
// When there is a difference, we set the Variable to true
VM_Host_Change = true;}
else {
// When there is no difference, we set the Variable to false
VM_Host_Change = false;}

After we finished our scripting we went to the “Decision”. Here we enter a name; I use “VM_Host_Change” and a description. In the Decision we need the Variable “Vm_Host_Change”

Local Parameter	Variable Name	Module	Direction	Type
VM_Host_Change	VM_Host_Change	VM_Host_Change	in	boolean

We set the Value in the Decision field to “is true”.

Next we define the In- and Outputs for the “Scriptable Task”. I call the Workflow “Update active record for ‘VM_Host’”. We need the following variables:

Local Parameter	Variable Name	Module	Direction	Type
V_ID	V_ID	Update Active Record for ‘VM_Host’	in	String
VMUUID	VMUUID	Update Active Record for ‘VM_Host’	in	String
clusterName	clusterName	Update Active Record for ‘VM_Host’	in	String
runningHostName	runningHostName	Update Active Record for ‘VM_Host’	in	String
resourcePoolName	resourcePoolName	Update Active Record for ‘VM_Host’	in	String
folderName	folderName	Update Active Record for ‘VM_Host’	in	String
ClusterfromDB	ClusterfromDB	Update Active Record for ‘VM_Host’	in	String
HostfromDB	HostfromDB	Update Active Record for ‘VM_Host’	in	String
RPfromDB	RPfromDB	Update Active Record for ‘VM_Host’	in	String
FolderfromDB	FolderfromDB	Update Active Record for ‘VM_Host’	in	String
UpdateResult_VM_Host	UpdateResult_VM_Host	Update Active Record for ‘VM_Host’	in	Number
VMHost_table	VMHost_table	Update Active Record for ‘VM_Host’	in	SQL:Table
VMHost_ReadResult	VMHost_ReadResult	Update Active Record for ‘VM_Host’	in	SQL:ActiveRecord
UpdateResult_VM_Host	UpdateResult_VM_Host	Update Active Record for ‘VM_Host’	Out	Number

Here is the script which we need in this module:

// we need the original values to load the record from the DB
var NewArray = new Array(V_ID,VMUUID,ClusterfromDB,HostfromDB,RPfromDB,FolderfromDB)

// we search for the record in the DB with the data from there
VMHost_ReadResult = System.getModule("com.vmware.library.sql").findUniqueRecord(VMHost_table,NewArray);

var columns = {
 VMID : V_ID,
 VMUUID : VMUUID,
 Cluster : clusterName,
 Host : runningHostName,
 ResourcePool : resourcePoolName,
 Folder : folderName
};

UpdateResult_VM_Host = VMHost_table.updateRecord(VMHost_ReadResult, columns);
System.log("Update DB with new host information")

 

After we have finished our mappings, we can connect the different workflows together. Also here it is the same schema as before. We connect the “GetVMfromHost_Info” to the decision “VM_Host_Change” from there we connect the false path to the “Scriptable Task” above and the true Path to “Update active record from ‘VM_Host”. From there we connect to also to the Scriptable task.

Now, I think everybody has an understanding from the method which is used here, so I will only provide the variables and the scripts for the last elements.

I call the next scriptable task “GetVMfromVM_Network”.  Here are the required in- and outputs and the script:

Local Parameter	Variable Name	Module	Direction	Type
V_ID	V_ID	GetVMInfofromVM_Network	in	string
VMNetwork_table	VMNetwork_table	GetVMInfofromVM_Network	in	SQL:Table
VMUUID	VMUUID	GetVMInfofromVM_Network	in	String
VMInfofromDB	VMInfofromDB	GetVMInfofromVM_Network	in	SQL:ActiveRecord
ipAddresses	ipAddresses	GetVMInfofromVM_Network	in	Array/string
networks	networks	GetVMInfofromVM_Network	in	Array/string
IPfromDB	IPfromDB	GetVMInfofromVM_Network	out	String
NetworksfromDB	NetworksfromDB	GetVMInfofromVM_Network	out	String
VM_Network_Change	VM_Network_Change	GetVMInfofromVM_Network	out	boolean
IpAddressToString	IpAddressToString	GetVMInfofromVM_Network	out	string
NetworksToString	NetworksToString	GetVMInfofromVM_Network	out	string

// -------------------------------------------------------------
// we search for the Data of the virtual Machine with the Name and the UUID. First we define the search columns
var columns = {
 VMID : V_ID,
 VMUUID : VMUUID,
};

// Get the Data from the Table and put them in a SQL Active Record
VMInfofromDB = VMNetwork_table.readRecords(columns);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringIP = VMInfofromDB.toString();
// In the Array, we search for the Keyword "IPAddress"
var IPSearch = SplitConfigArraytoStringIP.search("IPAddress");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 10 after the Start Position
var IPStart = IPSearch + 10;
// Here we split at the beginning of the Value with the rest of the string
var IPStringTemp = SplitConfigArraytoStringIP.slice(IPStart);
// We split on the first "," followed from a space. That's our value End. That's different then before because
// the vm can have more than one ip which is separated thru a ","
var IPStringEnd = IPStringTemp.search(/\s?,\s/);
// Here we take the start and the end we figured out before and save the value into the Variable
IPfromDB = IPStringTemp.slice(0, IPStringEnd);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringNet = VMInfofromDB.toString();
// In the Array, we search for the Keyword
var NetSearch = SplitConfigArraytoStringNet.search("Network");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 8 after the Start Position
var NetStart = NetSearch + 8;
// Here we split at the beginning of the Value with the rest of the string
var NetStringTemp = SplitConfigArraytoStringNet.slice(NetStart);
// We split on the first "," folowed from a space. That's our value End. That's different then before because
// the vm can have more than one network which is separated thru a ","
var NetStringEnd = NetStringTemp.search(/\s?,\s/);
// Here we take the start and the end we figured out before and save the value into the Variable
NetworksfromDB = NetStringTemp.slice(0, NetStringEnd);
//-----------------------------------------------------------------------------------------------------------------
// After we have our "configuration" Values, we have to check if there is a difference between the VM Data and
// the data stored in the DB.

// Catch empty Network and IpAddresses and set a placeholder text
if ((ipAddresses == null) || (ipAddresses == "")) {
IpAddressToString = "No IP adress found"
} else {
IpAddressToString = ipAddresses.toString()
};

if ((networks== null) || (networks == "" )){
NetworksToString = "No networks found"
} else {
NetworksToString =networks.toString()
};

if ((IPfromDB != IpAddressToString) || (NetworksfromDB != NetworksToString)){
// When there is a difference, we set the Variable to true
VM_Network_Change = true;}
else {
// When there is no difference, we set the Variable to false
VM_Network_Change = false;}

When you have a deeper look at the script, you will see that there is a change between this script and the two scripts before. Here we have (as by the insert into the DB) to convert our API Network information into a string! You will see the same conversation in the datastore script. Next we work with the Decision above. I call it “VM_Network_Change” and set the Value “VM_network_change” to true. Here is the table with the Variables:

Local Parameter	Variable Name	Module	Direction	Type
VM_Network_Change	VM_Network_Change	VM_Network_Change	in	boolean

Our last part for this three pair configuration is the “Scriptable task”. I call it “Update active record for ‘VM_Network”. We use the following in- and outputs:

Local Parameter	Variable Name	Module	Direction	Type
V_ID	V_ID	Update active record for ‘VM_Network	in	String
VMUUID	VMUUID	Update active record for ‘VM_Network	in	String
NetworksToString	NetworksToString	Update active record for ‘VM_Network	in	String
IpAddressToString	IpAddressToString	Update active record for ‘VM_Network	in	String
IPfromDB	IPfromDB	Update active record for ‘VM_Network	in	String
NetworksfromDB	NetworksfromDB	Update active record for ‘VM_Network	in	String
VMNetwork_table	VMNetwork_table	Update active record for ‘VM_Network	in	SQL:Table
VMNetworkRead_result	VMNetworkRead_result	Update active record for ‘VM_Network	in	SQL:ActiceRecord
UpdateResult_VM_Network	UpdateResult_VM_Network	Update active record for ‘VM_Network	Out	Number

And here is the script:

// We must catch "null" values and change them to ""
// we do this for IPfromDB and NetworksfromDB
// we need the original values to load the record from the DB
if (IPfromDB == "null"){
IPfromDB = "";}
if (NetworksfromDB == "null"){
NetworksfromDB = "";}

var NewArray = new Array(V_ID,VMUUID,NetworksfromDB,IPfromDB)

// we search for the record in the DB with the data from there
VMNetworkRead_result = System.getModule("com.vmware.library.sql").findUniqueRecord(VMNetwork_table,NewArray);

var columns = {
 VMID : V_ID,
 VMUUID : VMUUID,
 Network : NetworksToString,
 IPAddress : IpAddressToString
};

UpdateResult_VM_Network = VMNetwork_table.updateRecord(VMNetworkRead_result, columns);
System.log("Update DB with new network Information")

 

Now we can make our connections. Just follow the logic witch was used before. It is the same here…

Now let’s configure the last three pair of Workflows. We start with the scriptable task. I name it “GetVMfromVM_Datastore” and here are the used variables:

Local Parameter	Variable Name	Module	Direction	Type
V_ID	V_ID	GetVMInfofromVM_Datastore	in	string
VMDatastore_table	VMDatastore_table	GetVMInfofromVM_Datastore	in	SQL:Table
VMUUID	VMUUID	GetVMInfofromVM_Datastore	in	String
VMInfofromDB	VMInfofromDB	GetVMInfofromVM_Datastore	in	SQL:ActiveRecord
datastoresName	datastoresName	GetVMInfofromVM_Datastore	in	Array/string
diskSizes	diskSizes	GetVMInfofromVM_Datastore	in	Array/Number
DatastorefromDB	DatastorefromDB	GetVMInfofromVM_Datastore	out	String
DiskfromDB	DiskfromDB	GetVMInfofromVM_Datastore	out	String
VM_Datastore_Change	VM_Datastore_Change	GetVMInfofromVM_Datastore	out	boolean
DiskSizetoString	DiskSizetoString	GetVMInfofromVM_Datastore	out	String
DatastoreNamestoString	DatastoreNamestoString	GetVMInfofromVM_Datastore	out	String

And here is the required script:

// -------------------------------------------------------------
// we search for the Data of the virtual Machine with the Name and the UUID. First we define the search columns
var columns = {
 VMID : V_ID,
 VMUUID : VMUUID,

};

// Get the Data from the Table and put them in a SQL Active Record
VMInfofromDB = VMDatastore_table.readRecords(columns);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringDisk = VMInfofromDB.toString();
// In the Array, we search for the Keyword
var DiskSearch = SplitConfigArraytoStringDisk.search("DiskSize");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 9 after the Start Position
var DiskStart = DiskSearch + 9;
// Here we split at the beginning of the Value with the rest of the string
var DiskStringTemp = SplitConfigArraytoStringDisk.slice(DiskStart);
// We split on the first "," folowed from a space. That's our value End. That's different then before because
// the vm can have more than one ip which is separated thru a ","
var DiskStringEnd = DiskStringTemp.search(/\s?,\s/);
// Here we take the start and the end we figured out before and save the value into the Variable
DiskfromDB = DiskStringTemp.slice(0, DiskStringEnd);

// The data from the SQL Record is a "String" with is sepearted with ",". We have to Split the String in Single Files.....
// First, we put the String into a temporally Variable.
var SplitConfigArraytoStringData = VMInfofromDB.toString();
// In the Array, we search for the Keyword
var DataSearch = SplitConfigArraytoStringData.search("Datastore");
// The above defined search give us the Starting Position of our Keyword. We want the blank value, so we have to split
// on Position 10 after the Start Position
var DataStart = DataSearch + 10;
// Here we split at the beginning of the Value with the rest of the string
var DataStringTemp = SplitConfigArraytoStringData.slice(DataStart);
// We split on the first "}". That's our value End
var DataStringEnd = DataStringTemp.search("}");
// Here we take the start and the end we figured out before and save the value into the Variable
DatastorefromDB = DataStringTemp.slice(0, DataStringEnd);
//-----------------------------------------------------------------------------------------------------------------
// After we have our "configuration" Values, we have to check if there is a difference between the VM Data and
// the data stored in the DB.
// Catch empty disksizes and datastoreName and replace with a string
if ((diskSizes == null) || (diskSizes == "")){
DiskSizeToString = "Could not read Disk Size"
} else {
DiskSizeToString = diskSizes.toString();
};

if ((datastoresName == null) || (datastoresName = "")) {
DatastoreNamesToString = "Could not read Datastore Name"
} else {
DatastoreNamesToString = datastoresName.toString();
};

if ((DiskfromDB != DiskSizeToString) || (DatastorefromDB != DatastoreNamesToString)){
// When there is a difference, we set the Variable to true
VM_Datastore_Change = true;}
else {
// When there is no difference, we set the Variable to false
VM_Datastore_Change = false;}

Next we change the name for the decision to “VM_Datastore_Change”. As input we need:

Local Parameter	Variable Name	Module	Direction	Type
VM_Datastore_Change	VM_Datastore_Change	VM_Datastore_Change	in	boolean

Also here we set the Value VM_Datastore_Change to “true”.

Our last configuration must be done on the “Scriptable task”. I call it “Update active record for ‘VM_Datastore’”. Here we need the in- and outputs:

Local Parameter	Variable Name	Module	Direction	Type
V_ID	V_ID	Update active record for ‘VM_Datastore’	in	String
VMUUID	VMUUID	Update active record for ‘VM_Datastore’	in	String
DiskSizetoString	DiskSizetoString	Update active record for ‘VM_Datastore’	in	String
DatastoreNamesToString	DatastoreNamesToString	Update active record for ‘VM_Datastore’	in	String
DiskfromDB	DiskfromDB	Update active record for ‘VM_Datastore’	in	String
DatastorefromDB	DatastorefromDB	Update active record for ‘VM_Datastore’	in	String
VMDatastore_table	VMDatastore_table	Update active record for ‘VM_Datastore’	in	SQL:Table
VMDatastoreRead_result	VMDatastoreRead_result	Update active record for ‘VM_Datastore’	in	SQL:Active Record
UpdateResult_VM_Datastore	UpdateResult_VM_Datastore	Update active record for ‘VM_Datastore’	out	Number

And this script:

// We must catch "null" values and change them to ""
// we do this for DiskfromDB and DatastorefromDB
// we need the original values to load the record from the DB
if (DiskfromDB == "null"){
DiskfromDB = "";}
if (DatastorefromDB == "null"){
DatastorefromDB = "";}

// we search for the record in the DB with the data from there
var NewArray = new Array(V_ID,VMUUID,DiskfromDB,DatastorefromDB)

VMDatastoreRead_result = System.getModule("com.vmware.library.sql").findUniqueRecord(VMDatastore_table,NewArray);

// Now we start to update the record with the new data
var columns = {
 VMID : V_ID,
 VMUUID : VMUUID,
 DiskSize : DiskSizeToString,
 Datastore : DatastoreNamesToString
};
UpdateResult_VM_Datastore = VMDatastore_table.updateRecord(VMDatastoreRead_result, columns);
System.log("Update DB with new Storage Information")

At least we have to make our last connections. We start from “GetVMfromVM_Datastore” and go to the “VM_Datastore_Change”. From there we go with the false (the red) line to “NumberofVMs”. With the true (the green) line we go to “Update active record for ‘VM_Datastore’”. From there we connect to “NumberofVMs”.

After we have finished our configuration, let’s validate the workflow

And start….

If everything is fine, your DB will be updated with the last information and configuration changes of our virtual machines…..

That’s all for Part6…..