Revision ca4d59e3 snf-cyclades-app/synnefo/logic/backend.py
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from synnefo.db.models import (Backend, VirtualMachine, Network, |
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BackendNetwork, BACKEND_STATUSES, |
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pooled_rapi_client, VirtualMachineDiagnostic) |
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pooled_rapi_client, VirtualMachineDiagnostic, |
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Flavor) |
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from synnefo.logic import utils |
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from synnefo import quotas |
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from synnefo.api.util import release_resource |
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@transaction.commit_on_success |
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def process_op_status(vm, etime, jobid, opcode, status, logmsg, nics=None): |
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def process_op_status(vm, etime, jobid, opcode, status, logmsg, nics=None, |
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beparams=None): |
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"""Process a job progress notification from the backend |
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Process an incoming message from the backend (currently Ganeti). |
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if status == 'success' and state_for_success is not None: |
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vm.operstate = state_for_success |
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# Update the NICs of the VM |
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if status == "success" and nics is not None: |
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# Update the NICs of the VM |
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_process_net_status(vm, etime, nics) |
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if beparams: |
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assert(opcode == "OP_INSTANCE_SET_PARAMS"), "'beparams' should exist"\ |
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" only for SET_PARAMS" |
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# VM Resize |
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if status == "success": |
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# VM has been resized. Change the flavor |
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_process_resize(vm, beparams) |
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vm.operstate = "STOPPED" |
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elif status in ("canceled", "error"):
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vm.operstate = "STOPPED" |
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else: |
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vm.operstate = "RESIZE" |
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# Special case: if OP_INSTANCE_CREATE fails --> ERROR |
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if opcode == 'OP_INSTANCE_CREATE' and status in ('canceled', 'error'):
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vm.operstate = 'ERROR' |
| ... | ... | |
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vm.save() |
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def _process_resize(vm, beparams): |
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"""Change flavor of a VirtualMachine based on new beparams.""" |
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old_flavor = vm.flavor |
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vcpus = beparams.get("vcpus", None) or old_flavor.cpu
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minmem, maxmem = beparams.get("minmem"), beparams.get("maxmem")
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assert(minmem == maxmem), "Different minmem from maxmem" |
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if vcpus is None and maxmem is None: |
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return |
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ram = maxmem or old_flavor.ram |
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try: |
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new_flavor = Flavor.objects.get(cpu=vcpus, ram=ram, |
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disk=old_flavor.disk, |
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disk_template=old_flavor.disk_template) |
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except Flavor.DoesNotExist: |
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raise Exception("Can not find flavor for VM")
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vm.flavor = new_flavor |
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vm.save() |
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@transaction.commit_on_success |
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def process_net_status(vm, etime, nics): |
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"""Wrap _process_net_status inside transaction.""" |
Also available in: Unified diff