Hi all, I have installed the ovirt-engine-sdk-python using pip3 in my python3 virtaul environment in my personal laptop
(base) kris@my-ThinkPad-X270:~$ pip install ovirt-engine-sdk-python Collecting ovirt-engine-sdk-python Downloading ovirt-engine-sdk-python-4.4.14.tar.gz (335 kB) |████████████████████████████████| 335 kB 166 kB/s Collecting pycurl>=7.19.0 Downloading pycurl-7.43.0.6.tar.gz (222 kB) |████████████████████████████████| 222 kB 496 kB/s Requirement already satisfied: six in ./training/lib/python3.7/site-packages (from ovirt-engine-sdk-python) (1.15.0) Building wheels for collected packages: ovirt-engine-sdk-python, pycurl Building wheel for ovirt-engine-sdk-python (setup.py) ... done Created wheel for ovirt-engine-sdk-python: filename=ovirt_engine_sdk_python-4.4.14-cp37-cp37m-linux_x86_64.whl size=300970 sha256=128ee03642c36094d62a04435bf5def1e5f8eb2c800f97132e8da02665d227a8 Stored in directory: /home/kris/.cache/pip/wheels/2f/65/60/6a222dcdec777ae59bacb3f51a0a93e6cf9547b82cb0102db6 Building wheel for pycurl (setup.py) ... done Created wheel for pycurl: filename=pycurl-7.43.0.6-cp37-cp37m-linux_x86_64.whl size=269770 sha256=2cf705a2246041f9eaa5cbb19c530470edad7f476a0a7eb04c4877931699bea9 Stored in directory: /home/kris/.cache/pip/wheels/f2/32/dc/9ccf4566cfe0a7a11ee304c11af36a1e341a16fa30e74fb26e Successfully built ovirt-engine-sdk-python pycurl Installing collected packages: pycurl, ovirt-engine-sdk-python Successfully installed ovirt-engine-sdk-python-4.4.14 pycurl-7.43.0.6 WARNING: You are using pip version 21.0.1; however, version 21.2.2 is available. You should consider upgrading via the '/home/kris/training/bin/python3.7 -m pip install --upgrade pip' command. (base) kris@my-ThinkPad-X270:~$ which pip /home/kris/anaconda3/bin/pip (base) kris@my-ThinkPad-X270:~$ pip --version pip 21.0.1 from /home/kris/training/lib/python3.7/site-packages/pip (python 3.7) (base) kris@my-ThinkPad-X270:~$ pwd /home/kris and Created file in the user kris home directory in the same laptop // Is what I am doing right ? (base) kris@my-ThinkPad-X270:~$ cat ~/.config/ovirt.conf [engine-dev] engine_url=https://engine-dev // what is this engine url ? its the rhevm ovirt url this our service provider may can provide right ? username=admin@internal password=mypassword cafile=/etc/pki/vdsm/certs/cacert.pem // I dont have any cacert.pem file in my laptop's /etc/pki/vdsm/certs/cacert.pem no folder at all like this (base) kris@my-ThinkPad-X270:~$ pwd /home/kris (base) kris@my-ThinkPad-X270:~$ But I couldn't find any examples folder where I can find the download_disk.py // So I have downloaded files for ovirt-engne-sdk-python-4.1.3.tar.gz and untarred the files where I am able to find the download_disk.py ##### (base) kris@my-ThinkPad-X270:~/OVIRT_PYTON_SDK_SOURCE_FILES/ovirt-engine-sdk-python-4.1.3/examples$ ls add_affinity_label.py add_vm_from_template_version.py follow_vm_links.py set_vm_lease_storage_domain.py add_bond.py add_vm_nic.py get_display_ticket.py set_vm_serial_number.py add_cluster.py add_vm.py import_external_vm.py show_summary.py add_data_center.py add_vm_snapshot.py import_vm.py start_vm.py add_floating_disk.py add_vm_with_sysprep.py list_affinity_labels.py start_vm_with_boot_devices.py add_group.py add_vnc_console.py list_glance_images.py start_vm_with_cloud_init.py add_host.py assign_affinity_label_to_vm.py list_roles.py stop_vm.py add_independet_vm.py assign_permission.py list_tags_of_vm.py test_connection.py add_instance_type.py assign_tag_to_vm.py list_tags.py unassign_tag_to_vm.py add_mac_pool.py attach_nfs_data_storage_domain.py list_vm_disks.py update_data_center.py add_nfs_data_storage_domain.py attach_nfs_iso_storage_domain.py list_vm_snapshots.py update_fencing_options.py add_nfs_iso_storage_domain.py change_vm_cd.py list_vms.py update_quota_limits.py add_openstack_image_provider.py clone_vm_from_snapshot.py page_vms.py upload_disk.py add_role.py connection_builder.py remove_host.py vm_backup.py add_tag.py disable_compression.py remove_tag.py add_user_ssh_public_key.py download_disk.py remove_vm.py add_vm_disk.py enable_serial_console.py search_vms.py (base) kris@my-ThinkPad-X270:~/OVIRT_PYTON_SDK_SOURCE_FILES/ovirt-engine-sdk-python-4.1.3/examples$ Can I execute now the following from my laptop ? so that it will connect to the rhevm host node and download the disks ? (base) kris@my-ThinkPad-X270:$ python3 download_disk.py -c engine-dev MY_vm_blah_Id /var/tmp/disk1.raw //is this correct ? My laptop doesn't have space to accommodate 300 GB so can I attache a usb harddisk and can I specify its mount point ? or any other suggestions or correcton ? Because its a live host. I can't do trail and error on service maintainer's rhevm host machines. kindly correct me if any thing wrong in my steps . I have to perform this script running on mylaptop to rhevm host machines without breaking anything. Kindly guide me. Kris On Wed, Aug 4, 2021 at 1:38 AM Nir Soffer <nsof...@redhat.com> wrote: > On Tue, Aug 3, 2021 at 7:29 PM KK CHN <kkchn...@gmail.com> wrote: > > > > I have asked our VM maintainer to run the command > > > > # virsh -r dumpxml vm-name_blah //as Super user > > > > But no output : No matching domains found that was the TTY output on > that rhevm node when I executed the command. > > > > Then I tried to execute # virsh list // it doesn't list any VMs > !!! ( How come this ? Does the Rhevm node need to enable any CLI with > License key or something to list Vms or to dumpxml with virsh ? or its > CLI commands ? > > RHV undefine the vms when they are not running. > > > Any way I want to know what I have to ask the maintainer to provide > a working a working CLI or ? which do the tasks expected to do with > command line utilities in rhevm. > > > If the vm is not running you can get the vm configuration from ovirt > using the API: > > GET /api/vms/{vm-id} > > You may need more API calls to get info about the disks, follow the <links> > in the returned xml. > > > I have one more question : Which command can I execute on an rhevm > node to manually export ( not through GUI portal) a VMs to required > format ? > > > > For example; 1. I need to get one VM and disks attached to it as > raw images. Is this possible how? > > > > and another 2. VM and disk attached to it as Ova or( what other good > format) which suitable to upload to glance ? > > Arik can add more info on exporting. > > > Each VMs are around 200 to 300 GB with disk volumes ( so where should > be the images exported to which path to specify ? to the host node(if the > host doesn't have space or NFS mount ? how to specify the target location > where the VM image get stored in case of NFS mount ( available ?) > > You have 2 options: > - Download the disks using the SDK > - Export the VM to OVA > > When exporting to OVA, you will always get qcow2 images, which you can > later > convert to raw using "qemu-img convert" > > When downloading the disks, you control the image format, for example > this will download > the disk in any format, collapsing all snapshots to the raw format: > > $ python3 > /usr/share/doc/python3-ovirt-engine-sdk4/examples/download_disk.py > -c engine-dev 3649d84b-6f35-4314-900a-5e8024e3905c /var/tmp/disk1.raw > > This requires ovirt.conf file: > > $ cat ~/.config/ovirt.conf > [engine-dev] > engine_url = https://engine-dev > username = admin@internal > password = mypassword > cafile = /etc/pki/vdsm/certs/cacert.pem > > Nir > > > Thanks in advance > > > > > > On Mon, Aug 2, 2021 at 8:22 PM Nir Soffer <nsof...@redhat.com> wrote: > >> > >> On Mon, Aug 2, 2021 at 12:22 PM <kkchn...@gmail.com> wrote: > >> > > >> > I have few VMs in Redhat Virtualisation environment RHeV ( using > Rhevm4.1 ) managed by a third party > >> > > >> > Now I am in the process of migrating those VMs to my cloud setup > with OpenStack ussuri version with KVM hypervisor and Glance storage. > >> > > >> > The third party is making down each VM and giving the each VM image > with their attached volume disks along with it. > >> > > >> > There are three folders which contain images for each VM . > >> > These folders contain the base OS image, and attached LVM disk images > ( from time to time they added hard disks and used LVM for storing data ) > where data is stored. > >> > > >> > Is there a way to get all these images to be exported as Single > image file Instead of multiple image files from Rhevm it self. Is this > possible ? > >> > > >> > If possible how to combine e all these disk images to a single image > and that image can upload to our cloud glance storage as a single image ? > >> > >> It is not clear what is the vm you are trying to export. If you share > >> the libvirt xml > >> of this vm it will be more clear. You can use "sudo virsh -r dumpxml > vm-name". > >> > >> RHV supports download of disks to one image per disk, which you can move > >> to another system. > >> > >> We also have export to ova, which creates one tar file with all > exported disks, > >> if this helps. > >> > >> Nir > >> > >
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