418 lines
14 KiB
Python
418 lines
14 KiB
Python
#!/usr/bin/python
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# Copyright 2020 Red Hat, Inc.
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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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import jsonschema
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import metalsmith
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from metalsmith import sources
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_IMAGE_SCHEMA = {
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'type': 'object',
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'properties': {
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'href': {'type': 'string'},
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'checksum': {'type': 'string'},
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'kernel': {'type': 'string'},
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'ramdisk': {'type': 'string'},
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},
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'required': ['href'],
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'additionalProperties': False,
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}
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_NIC_SCHEMA = {
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'type': 'object',
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'properties': {
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'network': {'type': 'string'},
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'port': {'type': 'string'},
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'fixed_ip': {'type': 'string'},
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'subnet': {'type': 'string'},
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},
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'additionalProperties': False
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}
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_INSTANCE_SCHEMA = {
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'type': 'object',
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'properties': {
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'capabilities': {'type': 'object'},
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'conductor_group': {'type': 'string'},
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'hostname': {
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'type': 'string',
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'minLength': 2,
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'maxLength': 255
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},
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'image': _IMAGE_SCHEMA,
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'name': {'type': 'string'},
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'netboot': {'type': 'boolean'},
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'nics': {
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'type': 'array',
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'items': _NIC_SCHEMA
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},
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'passwordless_sudo': {'type': 'boolean'},
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'profile': {'type': 'string'},
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'provisioned': {'type': 'boolean'},
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'resource_class': {'type': 'string'},
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'root_size_gb': {'type': 'integer', 'minimum': 4},
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'ssh_public_keys': {'type': 'string'},
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'swap_size_mb': {'type': 'integer', 'minimum': 64},
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'traits': {
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'type': 'array',
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'items': {'type': 'string'}
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},
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'user_name': {'type': 'string'},
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},
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'additionalProperties': False,
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}
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_INSTANCES_SCHEMA = {
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'type': 'array',
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'items': _INSTANCE_SCHEMA
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}
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"""JSON schema of the instances list."""
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_ROLES_INPUT_SCHEMA = {
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'type': 'array',
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'items': {
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'type': 'object',
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'properties': {
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'name': {'type': 'string'},
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'hostname_format': {'type': 'string'},
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'count': {'type': 'integer', 'minimum': 0},
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'defaults': _INSTANCE_SCHEMA,
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'instances': _INSTANCES_SCHEMA,
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},
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'additionalProperties': False,
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'required': ['name'],
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}
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}
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"""JSON schema of the roles list."""
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NETWORK_KEYS = (
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'mtu',
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'tags',
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)
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SUBNET_KEYS = (
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'cidr',
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'gateway_ip',
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'host_routes',
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'dns_nameservers',
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)
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class BaremetalDeployException(Exception):
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pass
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def expand(roles, stack_name, expand_provisioned=True, default_image=None,
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default_network=None, user_name=None, ssh_public_keys=None):
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for role in roles:
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role.setdefault('defaults', {})
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if default_image:
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role['defaults'].setdefault('image', default_image)
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if default_network:
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role['defaults'].setdefault('nics', default_network)
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for inst in role.get('instances', []):
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for k, v in role['defaults'].items():
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inst.setdefault(k, v)
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# Set the default hostname now for duplicate hostname
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# detection during validation
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if 'hostname' not in inst and 'name' in inst:
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inst['hostname'] = inst['name']
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validate_roles(roles)
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instances = []
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hostname_map = {}
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parameter_defaults = {'HostnameMap': hostname_map}
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for role in roles:
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name = role['name']
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hostname_format = build_hostname_format(
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role.get('hostname_format'), name)
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count = role.get('count', 1)
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unprovisioned_indexes = []
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# build a map of all potential generated names
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# with the index number which generates the name
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potential_gen_names = {}
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for index in range(count + len(role.get('instances', []))):
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potential_gen_names[build_hostname(
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hostname_format, index, stack_name)] = index
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# build a list of instances from the specified
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# instances list
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role_instances = []
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for instance in role.get('instances', []):
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inst = {}
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inst.update(instance)
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# create a hostname map entry now if the specified hostname
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# is a valid generated name
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if inst.get('hostname') in potential_gen_names:
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hostname_map[inst['hostname']] = inst['hostname']
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if ssh_public_keys:
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inst['ssh_public_keys'] = ssh_public_keys
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if user_name:
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inst['user_name'] = user_name
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role_instances.append(inst)
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# add generated instance entries until the desired count of
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# provisioned instances is reached
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while len([i for i in role_instances
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if i.get('provisioned', True)]) < count:
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inst = {}
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inst.update(role['defaults'])
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role_instances.append(inst)
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# NOTE(dtantsur): our hostname format may differ from THT defaults,
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# so override it in the resulting environment
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parameter_defaults['%sDeployedServerHostnameFormat' % name] = (
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hostname_format)
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# ensure each instance has a unique non-empty hostname
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# and a hostname map entry. Also build a list of indexes
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# for unprovisioned instances
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index = 0
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for inst in role_instances:
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provisioned = inst.get('provisioned', True)
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gen_name = None
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hostname = inst.get('hostname')
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if hostname not in hostname_map:
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while (not gen_name
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or gen_name in hostname_map):
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gen_name = build_hostname(
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hostname_format, index, stack_name)
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index += 1
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inst.setdefault('hostname', gen_name)
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hostname = inst.get('hostname')
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hostname_map[gen_name] = inst['hostname']
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if not provisioned:
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if gen_name:
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unprovisioned_indexes.append(
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potential_gen_names[gen_name])
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elif hostname in potential_gen_names:
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unprovisioned_indexes.append(
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potential_gen_names[hostname])
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if unprovisioned_indexes:
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parameter_defaults['%sRemovalPolicies' % name] = [{
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'resource_list': unprovisioned_indexes
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}]
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provisioned_count = 0
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for inst in role_instances:
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provisioned = inst.pop('provisioned', True)
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if provisioned:
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provisioned_count += 1
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# Only add instances which match the desired provisioned state
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if provisioned == expand_provisioned:
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instances.append(inst)
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parameter_defaults['%sDeployedServerCount' % name] = (
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provisioned_count)
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validate_instances(instances)
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if expand_provisioned:
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env = {'parameter_defaults': parameter_defaults}
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else:
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env = {}
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return instances, env
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def check_existing(instances, provisioner, baremetal):
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validate_instances(instances)
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# Due to the name shadowing we should import other way
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import importlib
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sdk = importlib.import_module('openstack')
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not_found = []
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found = []
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for request in instances:
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ident = request.get('name', request['hostname'])
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try:
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instance = provisioner.show_instance(ident)
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# TODO(dtantsur): replace Error with a specific exception
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except (sdk.exceptions.ResourceNotFound,
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metalsmith.exceptions.Error):
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not_found.append(request)
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except Exception as exc:
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message = ('Failed to request instance information for %s'
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% ident)
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raise BaremetalDeployException(
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"%s. %s: %s" % (message, type(exc).__name__, exc)
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)
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else:
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# NOTE(dtantsur): metalsmith can match instances by node names,
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# provide a safeguard to avoid conflicts.
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if (instance.hostname
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and instance.hostname != request['hostname']):
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error = ("Requested hostname %s was not found, but the "
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"deployed node %s has a matching name. Refusing "
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"to proceed to avoid confusing results. Please "
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"either rename the node or use a different "
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"hostname") % (request['hostname'], instance.uuid)
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raise BaremetalDeployException(error)
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if (not instance.allocation
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and instance.state == metalsmith.InstanceState.ACTIVE
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and 'name' in request):
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# Existing node is missing an allocation record,
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# so create one without triggering allocation
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baremetal.create_allocation(
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resource_class=request.get('resource_class', 'baremetal'),
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name=request['hostname'],
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node=request['name']
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)
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found.append(instance)
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return found, not_found
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def populate_environment(instance_uuids, provisioner, environment,
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ctlplane_network):
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resource_registry = environment.setdefault(
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'resource_registry', {})
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resource_registry.setdefault(
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'OS::TripleO::DeployedServer::ControlPlanePort',
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'/usr/share/openstack-tripleo-heat-templates'
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'/deployed-server/deployed-neutron-port.yaml')
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port_map = (environment.setdefault('parameter_defaults', {})
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.setdefault('DeployedServerPortMap', {}))
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for uuid in instance_uuids:
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instance = provisioner.show_instance(uuid)
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nets = nics_to_port_map(instance.nics(), provisioner.connection)
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ctlplane_net = nets.get(ctlplane_network)
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if not ctlplane_net:
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continue
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fixed_ips = ctlplane_net.get('fixed_ips', [])
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network_all = ctlplane_net.get('network', {})
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network = {k: v for k, v in network_all.items()
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if k in NETWORK_KEYS}
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subnets = []
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for subnet in ctlplane_net.get('subnets', []):
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subnets.append({k: v for k, v in subnet.items()
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if k in SUBNET_KEYS})
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ctlplane = {
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'fixed_ips': fixed_ips,
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'network': network,
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'subnets': subnets
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}
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port_map['%s-%s' % (instance.hostname, ctlplane_network)] = ctlplane
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return environment
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def build_hostname_format(hostname_format, role_name):
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if not hostname_format:
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hostname_format = '%stackname%-{}-%index%'.format(
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'novacompute' if role_name == 'Compute' else role_name.lower())
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return hostname_format
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def build_hostname(hostname_format, index, stack):
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gen_name = hostname_format.replace('%index%', str(index))
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gen_name = gen_name.replace('%stackname%', stack)
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return gen_name
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def validate_instances(instances):
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jsonschema.validate(instances, _INSTANCES_SCHEMA)
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hostnames = set()
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names = set()
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for inst in instances:
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# NOTE(dtantsur): validate image parameters
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get_source(inst)
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if inst.get('hostname'):
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if inst['hostname'] in hostnames:
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raise ValueError('Hostname %s is used more than once' %
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inst['hostname'])
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hostnames.add(inst['hostname'])
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if inst.get('name'):
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if inst['name'] in names:
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raise ValueError('Node %s is requested more than once' %
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inst['name'])
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names.add(inst['name'])
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def validate_roles(roles):
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jsonschema.validate(roles, _ROLES_INPUT_SCHEMA)
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for item in roles:
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count = item.get('count', 1)
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instances = item.get('instances', [])
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instances = [i for i in instances if i.get('provisioned', True)]
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name = item.get('name')
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if len(instances) > count:
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raise ValueError(
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"%s: number of instance entries %s "
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"cannot be greater than count %s" %
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(name, len(instances), count)
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)
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defaults = item.get('defaults', {})
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if 'hostname' in defaults:
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raise ValueError("%s: cannot specify hostname in defaults"
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% name)
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if 'name' in defaults:
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raise ValueError("%s: cannot specify name in defaults"
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% name)
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if 'provisioned' in defaults:
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raise ValueError("%s: cannot specify provisioned in defaults"
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% name)
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if 'instances' in item:
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validate_instances(item['instances'])
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def get_source(instance):
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image = instance.get('image', {})
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return sources.detect(image=image.get('href'),
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kernel=image.get('kernel'),
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ramdisk=image.get('ramdisk'),
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checksum=image.get('checksum'))
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def nics_to_port_map(nics, connection):
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"""Build a port map from a metalsmith instance."""
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port_map = {}
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for nic in nics:
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for ip in nic.fixed_ips:
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net_name = getattr(nic.network, 'name', None) or nic.network.id
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subnet = connection.network.get_subnet(ip['subnet_id'])
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net_info = port_map.setdefault(
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net_name, {'network': nic.network.to_dict(),
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'fixed_ips': [], 'subnets': []})
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net_info['fixed_ips'].append({'ip_address': ip['ip_address']})
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net_info['subnets'].append(subnet.to_dict())
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return port_map
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