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authorEmma Foley <emma.l.foley@intel.com>2018-02-12 16:57:15 +0000
committerGerrit Code Review <gerrit@opnfv.org>2018-02-12 16:57:15 +0000
commit44f31bf01c787501d0c077730d4b76bb02a3faaf (patch)
tree6a8093a7206ca4d84e57714dd9f444f44a0bb65f /ansible/roles/infra_create_vms/tasks/main.yml
parentbabe3cc2882e19c6dafdbf41d502d7ba5560635a (diff)
parent8b52c6a9ae605022d108b093bf4413d66aef3397 (diff)
Merge "Create host VMs configuration"
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diff --git a/ansible/roles/infra_create_vms/tasks/main.yml b/ansible/roles/infra_create_vms/tasks/main.yml
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@@ -0,0 +1,28 @@
+# Copyright (c) 2017-2018 Intel Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+---
+- name: Include
+ include_vars:
+ file: "{{ rs_file }}"
+ name: infra_deploy_vars
+
+- set_fact:
+ mac_address_counter: 0
+
+- name: Create XML file
+ include_tasks: configure_vm.yml
+ extra_vars: "{{ mac_address_counter }}"
+ loop_control:
+ loop_var: node_item
+ with_items: "{{ infra_deploy_vars.nodes }}"
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# Copyright 2015-2016 Intel Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Automation of hugepages management
"""

import os
import re
import subprocess
import logging
import locale

from tools import tasks
from conf import settings

_LOGGER = logging.getLogger(__name__)

#
# hugepage management
#


def is_hugepage_available():
    """Check if hugepages are available on the system.
    """
    hugepage_re = re.compile(r'^HugePages_Free:\s+(?P<num_hp>\d+)$')

    # read in meminfo
    with open('/proc/meminfo') as mem_file:
        mem_info = mem_file.readlines()

    # first check if module is loaded
    for line in mem_info:
        result = hugepage_re.match(line)
        if not result:
            continue

        num_huge = result.group('num_hp')
        if not num_huge:
            _LOGGER.info('No free hugepages.')
        else:
            _LOGGER.info('Found \'%s\' free hugepage(s).', num_huge)
        return True

    return False


def is_hugepage_mounted():
    """Check if hugepages are mounted.
    """
    output = subprocess.check_output(['mount'], shell=True)
    my_encoding = locale.getdefaultlocale()[1]
    for line in output.decode(my_encoding).split('\n'):
        if 'hugetlbfs' in line:
            return True

    return False


def mount_hugepages():
    """Ensure hugepages are mounted.
    """
    if not is_hugepage_available():
        return

    if is_hugepage_mounted():
        return

    if not os.path.exists(settings.getValue('HUGEPAGE_DIR')):
        tasks.run_task(['sudo', 'mkdir', settings.getValue('HUGEPAGE_DIR')], _LOGGER,
                       'Creating directory ' + settings.getValue('HUGEPAGE_DIR'), True)
    try:
        tasks.run_task(['sudo', 'mount', '-t', 'hugetlbfs', 'nodev',
                        settings.getValue('HUGEPAGE_DIR')],
                       _LOGGER, 'Mounting hugepages...', True)
    except subprocess.CalledProcessError:
        _LOGGER.error('Unable to mount hugepages.')


def umount_hugepages():
    """Ensure hugepages are unmounted.
    """
    if not is_hugepage_mounted():
        return

    try:
        tasks.run_task(['sudo', 'umount', settings.getValue('HUGEPAGE_DIR')],
                       _LOGGER, 'Unmounting hugepages...', True)
    except subprocess.CalledProcessError:
        _LOGGER.error('Unable to umount hugepages.')