Write kernel modules via template
Using lineinfile for writing kernel modules is tedious and usually takes 10-12 seconds each time. This method takes about 1 second. Change-Id: Ide4bfb87f375bc80f9dce2208717b6050004a942
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@ -13,24 +13,6 @@
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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:
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- openstack_host_kernel_modules | length > 0
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- item != ''
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- name: "Ensure kernel module(s) loaded at boot"
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lineinfile:
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dest: "{{ openstask_host_module_file }}"
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line: "{{ item }}"
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create: yes
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with_items: "{{ openstack_host_kernel_modules }}"
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when:
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- openstack_host_kernel_modules | length > 0
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- item != ''
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- name: check how kernel modules are implemented (statically builtin, dynamic, not set)
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slurp:
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src: "/boot/config-{{ ansible_kernel }}"
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@ -56,6 +38,14 @@
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- (modules.content | b64decode).find(item.pattern + '=y') == -1
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- (modules.content | b64decode).find(item.pattern + '=m') == -1
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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:
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- openstack_host_kernel_modules | length > 0
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- item != ''
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- name: "Ensure dynamic specific kernel module(s) are loaded"
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modprobe:
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name: "{{ item.name }}"
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@ -65,12 +55,7 @@
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- inventory_hostname in groups[item.group]
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- (modules.content | b64decode).find(item.pattern + '=m') != -1
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- name: "Ensure dynamic specific kernel module(s) loaded at boot"
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lineinfile:
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- name: Write list of modules to load at boot
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template:
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src: modprobe.conf.j2
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dest: "{{ openstask_host_module_file }}"
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line: "{{ item.name }}"
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with_items: "{{ openstack_host_specific_kernel_modules }}"
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when:
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- groups[item.group] is defined
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- inventory_hostname in groups[item.group]
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- (modules.content | b64decode).find(item.pattern + '=m') != -1
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16
templates/modprobe.conf.j2
Normal file
16
templates/modprobe.conf.j2
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@ -0,0 +1,16 @@
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# {{ ansible_managed }}
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# Modules from the openstack-ansible-openstack_hosts role
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{% for module in openstack_host_kernel_modules %}
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{{ module }}
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{% endfor %}
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# Host-specific dynamic modules
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{%
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for module in openstack_host_specific_kernel_modules if (
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groups[module.group] is defined and
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inventory_hostname in module.group and
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item.pattern + '=m' in (modules.content | b64decode)
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)
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%}
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{{ module }}
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{% endfor %}
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