Revision 7187a877 tools/cfgupgrade
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#: Target minor version for downgrade |
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DOWNGRADE_MINOR = 8 |
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# map of legacy device types |
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# (mapping differing old LD_* constants to new DT_* constants) |
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DEV_TYPE_OLD_NEW = {"lvm": constants.DT_PLAIN, "drbd8": constants.DT_DRBD8}
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# (mapping differing new DT_* constants to old LD_* constants) |
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DEV_TYPE_NEW_OLD = {v:k for k,v in DEV_TYPE_OLD_NEW.items()}
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class Error(Exception): |
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"""Generic exception""" |
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return ret |
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def ChangeDiskDevType(disk, dev_type_map): |
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"""Replaces disk's dev_type attributes according to the given map. |
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This can be used for both, up or downgrading the disks. |
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""" |
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if disk["dev_type"] in dev_type_map: |
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disk["dev_type"] = dev_type_map[disk["dev_type"]] |
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if "children" in disk: |
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for child in disk["children"]: |
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ChangeDiskDevType(child, dev_type_map) |
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def UpgradeDiskDevType(disk): |
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"""Upgrades the disks' device type.""" |
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ChangeDiskDevType(disk, DEV_TYPE_OLD_NEW) |
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def UpgradeInstances(config_data): |
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"""Upgrades the instances' configuration.""" |
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network2uuid = dict((n["name"], n["uuid"]) |
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for n in config_data["networks"].values()) |
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if "instances" not in config_data: |
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" from '%s' to '%s'", |
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instance, idx, current, expected) |
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dobj["iv_name"] = expected |
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if "dev_type" in dobj: |
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UpgradeDiskDevType(dobj) |
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if not "spindles" in dobj: |
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missing_spindles = True |
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def ChangeNodeIndices(config_data, old_key_field, new_key_field): |
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def ChangeDiskNodeIndices(disk): |
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if disk["dev_type"] in constants.LDS_DRBD: |
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# Note: 'drbd8' is a legacy device type from pre 2.9 and needs to be |
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# considered when up/downgrading from/to any versions touching 2.9 on the |
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# way. |
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drbd_disk_types = set(["drbd8"]) | constants.DTS_DRBD |
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if disk["dev_type"] in drbd_disk_types: |
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for i in range(0, 2): |
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disk["logical_id"][i] = GetNewNodeIndex(nodes_by_old_key, |
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disk["logical_id"][i], |
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UpgradeInstanceIndices(config_data) |
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def DowngradeDiskDevType(disk): |
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"""Downgrades the disks' device type.""" |
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ChangeDiskDevType(disk, DEV_TYPE_NEW_OLD) |
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def DowngradeDisks(disks, owner): |
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for disk in disks: |
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# Remove spindles to downgrade to 2.8 |
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" instance %s", |
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disk["spindles"], disk["iv_name"], disk["uuid"], owner) |
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del disk["spindles"] |
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if "dev_type" in disk: |
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DowngradeDiskDevType(disk) |
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def DowngradeInstances(config_data): |
Also available in: Unified diff