[Users] [rhevm-api] Need help to Start and Stop VM using Java SDK
Juan Hernandez
jhernand at redhat.com
Wed Feb 12 18:34:12 UTC 2014
On 02/12/2014 10:08 AM, Tejesh M wrote:
> Thanks Juan... I'm in process of automating VM creation from Template &
> i want to assign random root password.. can you suggest whether is it
> possible via java SDK?
>
This is possible with a combination of cloud-init and the Java SDK.
First you will need to create a VM manually, install the cloud-init
package, and then make a template from this VM. Once you have this
template you can use something like the following to create a VM from
that template, and start it so that cloud-init will assign the password
you want:
// Generate the random password, using whatever mechanism you
// prefer:
String password = ...;
// You need to know the name of the template, the cluster and
// the VM you are going to create:
String templateName = "mytemplate";
String clusterName = "mycluster";
String vmName = "myvm";
// Prepare the data to create the VM from the template:
Template templateData = new Template();
templateData.setName(templateName);
Cluster clusterData = new Cluster();
clusterData.setName(clusterName);
VM vmDataForCreate = new VM();
vmDataForCreate.setName(vmName);
vmDataForCreate.setCluster(clusterData);
vmDataForCreate.setTemplate(templateData);
// Send the request to create the VM to the server:
api.getVMs().add(vmDataForCreate);
// White till the VM is down (it will be locked for a while):
for (;;) {
String state = api.getVMs().get(vmName).getStatus().getState();
if ("down".equals(state)) {
break;
}
Thread.sleep(1000);
}
// Populate parameters for the action to start the VM with cloud-init:
User userData = new User();
userData.setUserName("root");
userData.setPassword(password);
Users usersData = new Users();
usersData.getUsers().add(userData);
CloudInit cloudData = new CloudInit();
cloudData.setUsers(usersData);
Initialization initData = new Initialization();
initData.setCloudInit(cloudData);
VM vmDataForStart = new VM();
vmDataForStart.setInitialization(initData);
Action actionData = new Action();
actionData.setVm(vmDataForStart);
// Send the request to start the VM to the server:
api.getVMs().get(vmName).start(actionData);
>
>
>
>
> On Tue, Feb 11, 2014 at 9:01 PM, Juan Hernandez <jhernand at redhat.com
> <mailto:jhernand at redhat.com>> wrote:
>
> On 02/11/2014 04:16 PM, Itamar Heim wrote:
> > On 02/11/2014 04:55 PM, Tejesh M wrote:
> >> Thanks for your fast response.
> >>
> >> But intelli sense is not listing vm.*start *function
> >>
>
> This is because you are using the VM class from the
> org.ovirt.engine.sdk.entities package, instead of from the
> org.ovirt.engine.sdk.decorators package.
>
> The entities package contains classes that plain containers for the data
> that is sent to and received from the server.
>
> The decorators package contains classes that extend those plain
> containers adding functionality like the action methods.
>
> >> I'm using rhevm-sdk-java-1.0.0.29-1.jar
> >>
> >> _*code:*_
> >>
> >> import org.ovirt.engine.sdk.Api;
> >> import org.ovirt.engine.sdk.common.*;
> >> import org.ovirt.engine.sdk.decorators.VMDisk;
> >> import org.ovirt.engine.sdk.entities.*;
> >> import org.apache.commons.beanutils.*;
> >>
> >>
> >> public class rhvm {
> >> static Api api;
> >> public static void callAPI()
> >> {
> >> try{
> >>
> >> api = new Api("https://rhevm:443/api", "admin at internal",
> >> "password");
> >>
> >>
> >> org.ovirt.engine.sdk.entities.VM vm =
> >> api.getVMs().get("testVM3"); //get VM
>
> If you want to be able to use the "start" method you will need something
> like this:
>
> org.ovirt.engine.sdk.decorators.VM vm = api.getVMs().get("testVM3");
>
> Then your IDE will show you the additional methods in the decorator,
> including the "start" method.
>
> >> vm.setDescription("java_sdk");
> >>
> >> System.out.print("VM ID:" + vm.getStatus().getState());
> >> System.out.print("VM ID:" + vm.getId());
> >>
> >>
> >> }
> >> catch(Exception e)
> >> {
> >> System.out.print(e);
> >> }
> >> finally {
> >> api.shutdown();
> >> }
> >> }
> >> public static void main(String a[]) throws Exception
> >> {
> >> //rhvm obj = new rhvm();
> >> callAPI();
> >> System.out.println("\ncompleted");
> >> }
> >> }
> >>
> >>
> >>
> >>
> >> On Tue, Feb 11, 2014 at 8:08 PM, Ewoud Kohl van Wijngaarden
> >> <ewoud+rhevm-api at kohlvanwijngaarden.nl
> <mailto:ewoud%2Brhevm-api at kohlvanwijngaarden.nl>
> >> <mailto:ewoud+rhevm-api at kohlvanwijngaarden.nl
> <mailto:ewoud%2Brhevm-api at kohlvanwijngaarden.nl>>> wrote:
> >>
> >> On Tue, Feb 11, 2014 at 08:00:57PM +0530, Tejesh M wrote:
> >> > Can anyone share sample on how to Start & Stop VM using
> Java SDK? I
> >> > couldn't find any document on JAVA SDK for RHEVM.
> >>
> >> While this list hasn't been in use for some time, I hope I
> can still
> >> point you
> >> in the right direction.
> http://www.ovirt.org/Java-sdk#Examples has the
> >> following examples:
> >>
> >> // -- Create proxy
> >>
> >> // #1 - import
> >> import org.ovirt.engine.sdk.Api;
> >>
> >> // #2 - create proxy
> >> Api api = new Api("http://localhost:8080/api", "user at domain",
> >> "password");
> >>
> >> // -- perform an action on resource
> >>
> >> // #1 - fetch resource
> >> VM vm = api.getVMs().get("test");
> >>
> >> // #2 - create params + perform an action
> >> Action res = vm.start(new Action() {
> >> {
> >> setVm(new org.ovirt.engine.sdk.entities.VM());
> >> }
> >> });
> >>
> >> I'd guess vm.stop is exactly the same as vm.start.
> >> _______________________________________________
> >> rhevm-api mailing list
> >> rhevm-api at lists.fedorahosted.org
> <mailto:rhevm-api at lists.fedorahosted.org>
> >> <mailto:rhevm-api at lists.fedorahosted.org
> <mailto:rhevm-api at lists.fedorahosted.org>>
> >> https://lists.fedorahosted.org/mailman/listinfo/rhevm-api
> >>
> >>
> >>
> >>
> >> --
> >> Thanks & Regards
> >> Tejesh
> >>
> >>
> >> _______________________________________________
> >> rhevm-api mailing list
> >> rhevm-api at lists.fedorahosted.org
> <mailto:rhevm-api at lists.fedorahosted.org>
> >> https://lists.fedorahosted.org/mailman/listinfo/rhevm-api
> >>
> >
> > moving to users at ovirt.org...
> >
> > thanks,
> > Itamar
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