1b6bc3efd9
Some hosts needs to have more specific kernel modules loaded in memory. Based on a list of those modules and their target group hosts, this patch checks how these modules are implemented in the kernel by searching for a specified pattern for each module in /boot/config-$kernel_version, loads them if they are dynamic and fails in case they are not set in the kernel configuration. Change-Id: I728f36146bd99193b346ebf4158d3716f0fbbed8 Closes-Bug: 1546818
93 lines
2.8 KiB
YAML
93 lines
2.8 KiB
YAML
---
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# Copyright 2014, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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- name: "Ensure kernel module(s)"
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modprobe:
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name: "{{ item }}"
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with_items: openstack_host_kernel_modules
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when: openstack_host_kernel_modules is defined
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tags:
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- openstack-host-kernel-modules
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- name: "Ensure kernel module(s) loaded at boot"
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lineinfile:
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dest: /etc/modules
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line: "{{ item }}"
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with_items: openstack_host_kernel_modules
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when: openstack_host_kernel_modules is defined
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tags:
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- openstack-host-kernel-modules
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- name: get kernel release
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command: "uname -r"
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register: uname
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tags:
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- openstack-host-specific-kernel-modules
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- name: check how kernel modules are implemented (statically builtin, dynamic, not set)
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shell: grep {{ item.pattern }} /boot/config-{{ uname.stdout}}
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register: modules
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with_items: openstack_host_specific_kernel_modules
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when:
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- openstack_host_specific_kernel_modules is defined
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- inventory_hostname in groups["{{ item.group }}"]
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ignore_errors: yes
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tags:
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- openstack-host-specific-kernel-modules
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- name: fail if a specific kernel module is not set
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fail:
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msg: "{{ item['stdout'] }}"
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when:
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- modules['changed'] | bool
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- "'is not set' in item['stdout']"
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with_items: modules["results"]
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tags:
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- openstack-host-specific-kernel-modules
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- name: fail if a specific pattern is not valid
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fail:
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msg: "'pattern:' {{ item['item']['pattern'] }} 'is not valid. Search results for pattern lead to:' {{ item['stdout'] }}"
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when:
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- modules['changed'] | bool
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- "'=y' not in item['stdout']"
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- "'=m' not in item['stdout']"
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with_items: modules["results"]
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tags:
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- openstack-host-specific-kernel-modules
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- name: "Ensure dynamic specific kernel module(s) are loaded"
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modprobe:
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name: "{{ item['item']['name'] }}"
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with_items: modules["results"]
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when:
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- modules['changed'] | bool
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- inventory_hostname in groups[item["item"]["group"]]
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- "'=m' in item['stdout']"
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tags:
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- openstack-host-specific-kernel-modules
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- name: "Ensure dynamic specific kernel module(s) loaded at boot"
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lineinfile:
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dest: /etc/modules
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line: "{{ item['item']['name'] }}"
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with_items: modules["results"]
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when:
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- modules['changed'] | bool
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- inventory_hostname in groups[item["item"]["group"]]
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- "'=m' in item['stdout']"
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tags:
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- openstack-host-specific-kernel-modules
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