56 lines
2.1 KiB
Python
56 lines
2.1 KiB
Python
# Copyright 2010 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Possible vm states for instances.
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Compute instance vm states represent the state of an instance as it pertains to
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a user or administrator.
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vm_state describes a VM's current stable (not transition) state. That is, if
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there is no ongoing compute API calls (running tasks), vm_state should reflect
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what the customer expect the VM to be. When combined with task states
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(task_states.py), a better picture can be formed regarding the instance's
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health and progress.
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See http://wiki.openstack.org/VMState
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"""
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ACTIVE = 'active' # VM is running
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BUILDING = 'building' # VM only exists in DB
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PAUSED = 'paused'
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SUSPENDED = 'suspended' # VM is suspended to disk.
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STOPPED = 'stopped' # VM is powered off, the disk image is still there.
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RESCUED = 'rescued' # A rescue image is running with the original VM image
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# attached.
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RESIZED = 'resized' # a VM with the new size is active. The user is expected
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# to manually confirm or revert.
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SOFT_DELETED = 'soft-delete' # VM is marked as deleted but the disk images are
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# still available to restore.
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DELETED = 'deleted' # VM is permanently deleted.
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ERROR = 'error'
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SHELVED = 'shelved' # VM is powered off, resources still on hypervisor
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SHELVED_OFFLOADED = 'shelved_offloaded' # VM and associated resources are
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# not on hypervisor
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ALLOW_SOFT_REBOOT = [ACTIVE] # states we can soft reboot from
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ALLOW_HARD_REBOOT = ALLOW_SOFT_REBOOT + [STOPPED, PAUSED, SUSPENDED, ERROR]
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# states we allow hard reboot from
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ALLOW_TRIGGER_CRASH_DUMP = [ACTIVE, PAUSED, RESCUED, RESIZED, ERROR]
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# states we allow to trigger crash dump
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