Import/Export OVA Arik Hadas Deep Dive Scope Existing OVA - PowerPoint PPT Presentation

Nov 23, 2022 •392 likes •578 views

Import/Export OVA Arik Hadas Deep Dive Scope Existing OVA support: Importing VMware-compatible OVAs (external OVAs) Desired OVA support: Exporting oVirt-VMs to OVA An alternative to export domains* Exporting

Import/Export OVA Arik Hadas Deep Dive
Scope ● Existing OVA support: – Importing VMware-compatible OVAs (external OVAs) ● Desired OVA support: – Exporting oVirt-VMs to OVA ● An alternative to export domains* – Exporting oVirt-templates to OVA ● An alternative to export domains ● To share templates between RHV environments – Importing oVirt-OVAs
Exporting oVirt-VMs to OVAs
Exporting oVirt-VMs to OVAs
Exporting oVirt-VMs to OVAs Full SDK Example (github)
Exporting oVirt-VMs to OVAs Engine Clone Generate Generate Disks OVF OVA Ansible Proxy SPM Host Pack the Copy+ OVF and cloned Collapse disks into a Disks tar file
Exporting oVirt-VMs to OVAs engine.log CopyAllOvaDisksCommand CopyImageGroupCommand .... CopyImageGroupCommand CreateOvaCommand ovirt-export-ova...log Playbook ovirt-ova-export engine.log RemoveDiskCommand .... RemoveDiskCommand
Playbook ovirt-ova-export Role: ovirt-ova-export-pre-pack Validate the target folder Prepare <ova name>.ova.tmp file Role: ovirt-ova-pack Pack OVF and disk into the file Role: ovirt-ova-export-post-pack Rename to <ova_name>.ova Remove OVA file on failure
Exporting oVirt-templates to OVAs ● Not available yet – Planned for the next release ● Very similar process to exporting VMs to OVAs ● Provides a way of sharing templates
Importing oVirt-OVAs
Importing oVirt-OVAs
Importing oVirt-OVAs Full SDK Example (github)
Importing oVirt-OVAs ● Similar to importing an external OVA – From the client side ● Does not involve virt-v2v – Distinguish oVirt-OVAs by ‘ovirt’ namespace – Use the configuration within the OVF – Copy the disk volumes to storage domains ● Does not support templates yet Tar file vm.ovf QCOW Volume QCOW Volume
Importing oVirt-OVAs engine.log ImportVmFromOvaCommand AddDiskCommand .... AddDiskCommand ExtractOvaCommand ovirt-import-ova...log Playbook ovirt-ova-extract engine.log TeardownImageCommand .... TeardownImageCommand
Uploading OVA ● Create a VM from an OVA that resides out of the DC – Currently, limited to VMs – In 4.2, limited to oVirt-OVA – In 4.2, limited to the SDK ● Does not involve Ansible RHV (1) Upload disks Machine with SDK (2) Import configuration
Sharing Vms/templates Efciently ● Using a shared storage (TBD: Glance) RHV-1 RHV-2 (1) Export (2) Import ● Uploading to another environment (1) Export (2) Upload disks RHV-1 RHV-2 (3) Import configuration
Known Limitations and Pitfalls ● May introduce new issues with external OVAs – Due to unifying OVF parsing ● Not an exact alternative to export domain – For instance, OVAs do not contain snapshots ● OVA cannot be produced on block storage ● No support for oVirt-OVA as a folder (rather than tar file) ● ‘File Path’ should point to an OVA – Although it may seem that the import dialog supports specifying a folder of OVAs as well ● Using direct I/O
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