Initial VM restore work
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38abd078af
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@ -31,6 +31,7 @@ from concurrent.futures import ThreadPoolExecutor
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from datetime import datetime
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from shutil import rmtree
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from json import dump as jdump
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from json import load as jload
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import daemon_lib.common as common
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@ -1361,6 +1362,9 @@ def backup_vm(
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else:
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export_fileext = "rbdimg"
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# 2c. Validate that there's enough space on the target
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# TODO
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# 3. Set datestring in YYYYMMDDHHMMSS format
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now = datetime.now()
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datestring = now.strftime("%Y%m%d%H%M%S")
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@ -1495,3 +1499,94 @@ def backup_vm(
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retmsg = f"WARNING: Failed to remove snapshot as requested for volume(s) {', '.join(which_snapshot_remove_failed)}: {', '.join(msg_snapshot_remove_failed)}\n{retmsg}"
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return True, retmsg
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def restore_vm(zkhandler, domain, datestring, source_path, incremental_parent=None):
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tstart = time.time()
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# 0. Validations
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# Validate that VM does not exist in cluster
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dom_uuid = getDomainUUID(zkhandler, domain)
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if dom_uuid:
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return (
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False,
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f'ERROR: VM "{domain}" already exists in the cluster! Remove or rename it before restoring a backup.',
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)
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# Validate that the target path exists
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if not re.match(r"^/", source_path):
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return (
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False,
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f"ERROR: Source path {source_path} is not a valid absolute path on the primary coordinator!",
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)
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# Ensure that source_path (on this node) exists
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if not os.path.isdir(source_path):
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return False, f"ERROR: Source path {source_path} does not exist!"
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# Ensure that domain path (on this node) exists
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vm_source_path = f"{source_path}/{domain}"
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if not os.path.isdir(vm_source_path):
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return False, f"ERROR: Source VM path {vm_source_path} does not exist!"
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# Ensure that the archives are present
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vm_source_pvcbackup_file = f"{vm_source_path}/{domain}.{datestring}.pvcbackup"
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vm_source_pvcdisks_file = f"{vm_source_path}/{domain}.{datestring}.pvcdisks"
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if not os.path.isfile(vm_source_pvcbackup_file) or not os.path.isfile(
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vm_source_pvcdisks_file
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):
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return False, f"ERROR: The specified source backup files do not exist!"
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if incremental_parent is not None:
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vm_source_parent_pvcbackup_file = (
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f"{vm_source_path}/{domain}.{incremental_parent}.pvcbackup"
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)
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vm_source_parent_pvcdisks_file = (
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f"{vm_source_path}/{domain}.{incremental_parent}.pvcdisks"
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)
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if not os.path.isfile(vm_source_parent_pvcbackup_file) or not os.path.isfile(
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vm_source_parent_pvcdisks_file
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):
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return (
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False,
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f"ERROR: The specified incremental parent source backup files do not exist!",
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)
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# 1. Read the backup file and get VM details
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try:
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with open(vm_source_pvcbackup_file) as fh:
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vm_source_details = jload(fh)
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except Exception as e:
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return False, f"ERROR: Failed to read source backup details: {e}"
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# 2. Import VM config and metadata in provision state
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vm_config_xml = vm_source_details.get("xml")
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vm_config_meta = {
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"node": vm_source_details.get("node"),
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"node_limit": vm_source_details.get("node_limit"),
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"node_selector": vm_source_details.get("node_selector"),
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"node_autostart": vm_source_details.get("node_autostart"),
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"migration_method": vm_source_details.get("migration_method"),
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"tags": vm_source_details.get("tags"),
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"description": vm_source_details.get("description"),
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"profile": vm_source_details.get("profile"),
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}
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define_vm(
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zkhandler,
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vm_confing_xml,
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vm_source_details.get("node"),
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vm_source_details.get("node_limit"),
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vm_source_details.get("node_selector"),
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vm_source_details.get("node_autostart"),
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vm_source_details.get("migration_method"),
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vm_source_details.get("profile"),
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vm_source_details.get("tags"),
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"restore",
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)
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# 4. Import parent snapshot disks (if applicable)
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# 5. Apply diffs (if applicable)
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# 5. Start VM
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