425 lines
13 KiB
Python
425 lines
13 KiB
Python
# Copyright 2015 Red Hat, Inc.
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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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#
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import base64
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import hashlib
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import json
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import logging
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import os
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import re
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import six
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import struct
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import subprocess
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import sys
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import time
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import uuid
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from tripleoclient import exceptions
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WEBROOT = '/dashboard/'
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SERVICE_LIST = {
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'ceilometer': {'password_field': 'OVERCLOUD_CEILOMETER_PASSWORD'},
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'cinder': {'password_field': 'OVERCLOUD_CINDER_PASSWORD'},
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'cinderv2': {'password_field': 'OVERCLOUD_CINDER_PASSWORD'},
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'glance': {'password_field': 'OVERCLOUD_GLANCE_PASSWORD'},
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'heat': {'password_field': 'OVERCLOUD_HEAT_PASSWORD'},
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'neutron': {'password_field': 'OVERCLOUD_NEUTRON_PASSWORD'},
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'nova': {'password_field': 'OVERCLOUD_NOVA_PASSWORD'},
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'novav3': {'password_field': 'OVERCLOUD_NOVA_PASSWORD'},
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'swift': {'password_field': 'OVERCLOUD_SWIFT_PASSWORD'},
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'horizon': {
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'port': '80',
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'path': WEBROOT,
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'admin_path': '%sadmin' % WEBROOT},
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}
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def _generate_password():
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"""Create a random password
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The password is made by taking a uuid and passing it though sha1sum.
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We may change this in future to gain more entropy.
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This is based on the tripleo command os-make-password
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"""
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uuid_str = six.text_type(uuid.uuid4()).encode("UTF-8")
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return hashlib.sha1(uuid_str).hexdigest()
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def generate_overcloud_passwords(output_file="tripleo-overcloud-passwords"):
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"""Create the passwords needed for the overcloud
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This will create the set of passwords required by the overcloud, store
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them in the output file path and return a dictionary of passwords. If the
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file already exists the existing passwords will be returned instead,
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"""
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if os.path.isfile(output_file):
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with open(output_file) as f:
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return dict(line.split('=') for line in f.read().splitlines())
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password_names = (
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"OVERCLOUD_ADMIN_PASSWORD",
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"OVERCLOUD_ADMIN_TOKEN",
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"OVERCLOUD_CEILOMETER_PASSWORD",
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"OVERCLOUD_CEILOMETER_SECRET",
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"OVERCLOUD_CINDER_PASSWORD",
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"OVERCLOUD_DEMO_PASSWORD",
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"OVERCLOUD_GLANCE_PASSWORD",
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"OVERCLOUD_HEAT_PASSWORD",
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"OVERCLOUD_HEAT_STACK_DOMAIN_PASSWORD",
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"OVERCLOUD_NEUTRON_PASSWORD",
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"OVERCLOUD_NOVA_PASSWORD",
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"OVERCLOUD_SWIFT_HASH",
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"OVERCLOUD_SWIFT_PASSWORD",
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)
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passwords = dict((p, _generate_password()) for p in password_names)
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with open(output_file, 'w') as f:
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for name, password in passwords.items():
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f.write("{0}={1}\n".format(name, password))
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return passwords
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def check_hypervisor_stats(compute_client, nodes=1, memory=0, vcpu=0):
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"""Check the Hypervisor stats meet a minimum value
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Check the hypervisor stats match the required counts. This is an
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implementation of a command in TripleO with the same name.
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:param compute_client: Instance of Nova client
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:type compute_client: novaclient.client.v2.Client
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:param nodes: The number of nodes to wait for, defaults to 1.
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:type nodes: int
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:param memory: The amount of memory to wait for in MB, defaults to 0.
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:type memory: int
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:param vcpu: The number of vcpus to wait for, defaults to 0.
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:type vcpu: int
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"""
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statistics = compute_client.hypervisors.statistics().to_dict()
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if all([statistics['count'] >= nodes,
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statistics['memory_mb'] >= memory,
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statistics['vcpus'] >= vcpu]):
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return statistics
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else:
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return None
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def wait_for_stack_ready(orchestration_client, stack_name):
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"""Check the status of an orchestration stack
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Get the status of an orchestration stack and check whether it is complete
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or failed.
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:param orchestration_client: Instance of Orchestration client
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:type orchestration_client: heatclient.v1.client.Client
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:param stack_name: Name or UUID of stack to retrieve
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:type stack_name: string
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"""
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SUCCESSFUL_MATCH_OUTPUT = "(CREATE|UPDATE)_COMPLETE"
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FAIL_MATCH_OUTPUT = "(CREATE|UPDATE)_FAILED"
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while True:
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stack = orchestration_client.stacks.get(stack_name)
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if not stack:
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return False
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status = stack.stack_status
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if re.match(SUCCESSFUL_MATCH_OUTPUT, status):
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return True
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if re.match(FAIL_MATCH_OUTPUT, status):
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print("Stack failed with status: {}".format(
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stack.stack_status_reason, file=sys.stderr))
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return False
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time.sleep(10)
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def wait_for_provision_state(baremetal_client, node_uuid, provision_state,
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loops=10, sleep=1):
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"""Wait for a given Provisioning state in Ironic Discoverd
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Updating the provisioning state is an async operation, we
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need to wait for it to be completed.
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:param baremetal_client: Instance of Ironic client
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:type baremetal_client: ironicclient.v1.client.Client
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:param node_uuid: The Ironic node UUID
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:type node_uuid: str
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:param provision_state: The provisioning state name to wait for
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:type provision_state: str
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:param loops: How many times to loop
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:type loops: int
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:param sleep: How long to sleep between loops
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:type sleep: int
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"""
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for _ in range(0, loops):
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node = baremetal_client.node.get(node_uuid)
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if node is None:
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# The node can't be found in ironic, so we don't need to wait for
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# the provision state
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return True
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if node.provision_state == provision_state:
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return True
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time.sleep(sleep)
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return False
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def wait_for_node_discovery(discoverd_client, auth_token, discoverd_url,
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node_uuids, loops=220, sleep=10):
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"""Check the status of Node discovery in Ironic discoverd
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Gets the status and waits for them to complete.
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:param discoverd_client: Ironic Discoverd client
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:type discoverd_client: ironic_discoverd.client
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:param auth_token: Authorisation token used by discoverd client
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:type auth_token: string
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:param discoverd_url: URL used by the discoverd client
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:type discoverd_url: string
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:param node_uuids: List of Node UUID's to wait for discovery
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:type node_uuids: [string, ]
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:param loops: How many times to loop
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:type loops: int
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:param sleep: How long to sleep between loops
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:type sleep: int
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"""
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log = logging.getLogger(__name__ + ".wait_for_node_discovery")
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node_uuids = node_uuids[:]
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for _ in range(0, loops):
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for node_uuid in node_uuids:
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status = discoverd_client.get_status(
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node_uuid,
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base_url=discoverd_url,
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auth_token=auth_token)
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if status['finished']:
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log.debug("Discover finished for node {0} (Error: {1})".format(
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node_uuid, status['error']))
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node_uuids.remove(node_uuid)
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yield node_uuid, status
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if not len(node_uuids):
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raise StopIteration
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time.sleep(sleep)
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if len(node_uuids):
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log.error("Discovery didn't finish for nodes {0}".format(
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','.join(node_uuids)))
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def create_environment_file(path="~/overcloud-env.json",
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control_scale=1, compute_scale=1,
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ceph_storage_scale=0, block_storage_scale=0,
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swift_storage_scale=0):
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"""Create a heat environment file
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Create the heat environment file with the scale parameters.
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:param control_scale: Scale value for control roles.
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:type control_scale: int
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:param compute_scale: Scale value for compute roles.
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:type compute_scale: int
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:param ceph_storage_scale: Scale value for ceph storage roles.
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:type ceph_storage_scale: int
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:param block_storage_scale: Scale value for block storage roles.
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:type block_storage_scale: int
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:param swift_storage_scale: Scale value for swift storage roles.
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:type swift_storage_scale: int
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"""
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env_path = os.path.expanduser(path)
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with open(env_path, 'w+') as f:
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f.write(json.dumps({
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"parameters": {
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"ControllerCount": control_scale,
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"ComputeCount": compute_scale,
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"CephStorageCount": ceph_storage_scale,
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"BlockStorageCount": block_storage_scale,
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"ObjectStorageCount": swift_storage_scale}
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}))
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return env_path
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def set_nodes_state(baremetal_client, nodes, transition, target_state,
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skipped_states=()):
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"""Make all nodes available in the baremetal service for a deployment
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For each node, make it available unless it is already available or active.
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Available nodes can be used for a deployment and an active node is already
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in use.
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:param baremetal_client: Instance of Ironic client
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:type baremetal_client: ironicclient.v1.client.Client
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:param nodes: List of Baremetal Nodes
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:type nodes: [ironicclient.v1.node.Node]
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:param transition: The state to set for a node. The full list of states
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can be found in ironic.common.states.
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:type transition: string
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:param target_state: The expected result state for a node. For example when
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transitioning to 'manage' the result is 'manageable'
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:type target_state: string
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:param skipped_states: A set of states to skip, for example 'active' nodes
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are already deployed and the state can't always be
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changed.
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:type skipped_states: iterable of strings
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"""
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log = logging.getLogger(__name__ + ".set_nodes_state")
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for node in nodes:
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if node.provision_state in skipped_states:
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continue
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log.debug(
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"Setting provision state from {0} to '{1} for Node {2}"
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.format(node.provision_state, transition, node.uuid))
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baremetal_client.node.set_provision_state(node.uuid, transition)
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if not wait_for_provision_state(baremetal_client, node.uuid,
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target_state):
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print("FAIL: State not updated for Node {0}".format(
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node.uuid, file=sys.stderr))
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else:
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yield node.uuid
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def get_hiera_key(key_name):
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"""Retrieve a key from the hiera store
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:param password_name: Name of the key to retrieve
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:type password_name: type
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"""
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command = ["hiera", key_name]
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p = subprocess.Popen(command, stdout=subprocess.PIPE)
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out, err = p.communicate()
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return out
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def get_config_value(section, option):
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p = six.moves.configparser.ConfigParser()
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p.read(os.path.expanduser("~/undercloud-passwords.conf"))
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return p.get(section, option)
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def remove_known_hosts(overcloud_ip):
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"""For a given IP address remove SSH keys from the known_hosts file"""
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known_hosts = os.path.expanduser("~/.ssh/known_hosts")
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if os.path.exists(known_hosts):
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command = ['ssh-keygen', '-R', overcloud_ip, '-f', known_hosts]
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subprocess.check_call(command)
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def create_cephx_key():
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# NOTE(gfidente): Taken from
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# https://github.com/ceph/ceph-deploy/blob/master/ceph_deploy/new.py#L21
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key = os.urandom(16)
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header = struct.pack("<hiih", 1, int(time.time()), 0, len(key))
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return base64.b64encode(header + key)
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def run_shell(cmd):
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return subprocess.call([cmd], shell=True)
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def all_unique(x):
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"""Return True if the collection has no duplications."""
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return len(set(x)) == len(x)
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def file_checksum(filepath):
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"""Calculate md5 checksum on file
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:param filepath: Full path to file (e.g. /home/stack/image.qcow2)
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:type filepath: string
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"""
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checksum = hashlib.md5()
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with open(filepath, 'rb') as f:
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for fragment in iter(lambda: f.read(65536), ''):
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checksum.update(fragment)
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return checksum.hexdigest()
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def check_nodes_count(baremetal_client, stack, parameters, defaults):
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"""Check if there are enough available nodes for creating/scaling stack"""
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count = 0
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if stack:
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for param in defaults:
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try:
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current = int(stack.parameters[param])
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except KeyError:
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raise ValueError(
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"Parameter '%s' was not found in existing stack" % param)
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count += parameters.get(param, current)
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else:
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for param, default in defaults.items():
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count += parameters.get(param, default)
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available = len(baremetal_client.node.list(associated=False,
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maintenance=False))
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if count > available:
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raise exceptions.DeploymentError(
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"Not enough nodes - available: {0}, requested: {1}".format(
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available, count))
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else:
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return True
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