--- /dev/null
+
+"""Extra Ansible filters"""
+
+def deb_kernel(packages, kernel_version, current_version):
+ """
+ Return best matching kernel version.
+ Args:
+ packages (dict): apt-cache showpkg output.
+ kernel_version (str): Kernel version to install.
+ current_version (str): Current kernel version.
+ Returns:
+ str: kernel version.
+ """
+ kernels = set()
+
+ # List all available kernel version and associated repository
+ for line in packages['stdout'].splitlines():
+ line = line.strip()
+ if line.startswith('Package: ') and (
+ line.endswith('-common') or # Debian
+ line.endswith('-generic')): # Ubuntu
+ kernel = line.split()[1]
+
+ for string in ('linux-headers-', 'common', 'generic'):
+ kernel = kernel.replace(string, '')
+ kernel = kernel.strip('-')
+
+ if kernel:
+ kernels.add(kernel)
+
+ # Sort Kernel versions
+ versions = {}
+ for kernel in kernels:
+ try:
+ version, build = kernel.split('-', 1)
+ except ValueError:
+ version = kernel
+ build = ''
+ versions[kernel] = list(
+ int(ver) for ver in version.split('.')) + [build]
+ kernels = sorted(versions.keys(), key=versions.get, reverse=True)
+
+ # Return more recent kernel package that match version requirement
+ for kernel in kernels:
+ if kernel.startswith(kernel_version):
+ return kernel
+
+ raise RuntimeError(
+ 'No kernel matching to "%s". Available kernel versions: %s' % (
+ kernel_version, ', '.join(reversed(kernels))))
+
+
+def _deb_kernel_package(kernel, dist, arch, name):
+ """
+ Return kernel package name.
+ Args:
+ kernel (str): Kernel version.
+ dist (str): Distribution.
+ arch (str): Architecture.
+ name (str): Package name.
+ Returns:
+ str: kernel package.
+ """
+ # Define package suffix
+ if dist == 'Ubuntu':
+ suffix = 'generic'
+ elif name == 'linux-image':
+ suffix = arch.replace('x86_64', 'amd64')
+ else:
+ suffix = 'common'
+
+ return '-'.join((name, kernel, suffix))
+
+
+def deb_kernel_pkg(packages, kernel_version, current_version, dist, arch, name):
+ """
+ Return kernel package to install.
+ Args:
+ packages (dict): apt-cache showpkg output.
+ kernel_version (str): Kernel version to install.
+ current_version (str): Current kernel version.
+ dist (str): Distribution.
+ arch (str): Architecture.
+ name (str): Package name.
+ Returns:
+ str: kernel package to install.
+ """
+ return _deb_kernel_package(
+ deb_kernel(packages, kernel_version, current_version), dist, arch, name)
+
+
+def deb_installed_kernel(installed, packages, kernel_version, current_version):
+ """
+ Return old kernel packages to remove.
+ Args:
+ installed (dict): dpkg -l output.
+ packages (dict): apt-cache showpkg output.
+ kernel_version (str): Kernel version to install.
+ current_version (str): Current kernel version.
+ Returns:
+ list of str: Kernel packages to remove.
+ """
+ # Filter installed package to keep
+ to_keep = deb_kernel(packages, kernel_version, current_version)
+
+ # Return installed package to remove
+ to_remove = []
+ for line in installed['stdout'].splitlines():
+ if ' linux-' not in line:
+ continue
+
+ package = line.split()[1]
+ if ((package.startswith('linux-image-') or
+ package.startswith('linux-headers-')) and not (
+ package.startswith('linux-image-' + to_keep) or
+ package.startswith('linux-headers-' + to_keep))):
+ to_remove.append(package)
+
+ return to_remove
+
+
+def kernel_match(kernel, kernel_spec):
+ """
+ Check if kernel version match.
+ Args:
+ kernel (str): Kernel
+ kernel_spec (str): Kernel to match.
+ Returns:
+ bool: True if Kernel match.
+ """
+ return kernel.startswith(kernel_spec)
+
+
+class FilterModule(object):
+ """Return filter plugin"""
+
+ @staticmethod
+ def filters():
+ """Return filter"""
+ return {'deb_kernel': deb_kernel,
+ 'deb_kernel_pkg': deb_kernel_pkg,
+ 'deb_installed_kernel': deb_installed_kernel,
+ 'kernel_match': kernel_match}
--- /dev/null
+---
+# file: roles/kernel/tasks/ubuntu_bionic.yaml
+
+- name: Kernel - Get Available Kernel Versions
+ command: "apt-cache showpkg linux-headers-*"
+ changed_when: false
+ register: apt_kernel_list
+ tags: install-kernel
+
+- name: Kernel - Get installed packages with APT
+ command: "dpkg -l"
+ changed_when: false
+ register: apt_packages_list
+ tags: install-kernel
+
+- name: Kernel - Set target APT kernel version
+ set_fact:
+ _kernel: "{{ apt_kernel_list | deb_kernel(
+ kernel_version, ansible_kernel) }}"
+ tags: install-kernel
+
+- name: Kernel - Ensure Packages Versions
+ apt:
+ name: "{{ apt_kernel_list | deb_kernel_pkg(
+ kernel_version, ansible_kernel, ansible_distribution,
+ ansible_architecture, item) }}"
+ loop: "{{ kernel_packages }}"
+ tags: install-kernel
+
+- name: Kernel - Ensure Any Other Kernel Packages Are Removed
+ apt:
+ name: "{{ apt_packages_list | deb_installed_kernel(
+ apt_kernel_list, kernel_version, ansible_kernel) }}"
+ state: absent
+ purge: true
+ tags: install-kernel
+
+- name: Kernel - Ensure Any Microcode Is Absent
+ apt:
+ name: "{{ absent_packages }}"
+ state: absent
+ purge: true
+ tags: install-kernel
+
--- /dev/null
+"""Extra Ansible filters"""
+
+def irqbalance_banned_cpu_mask(
+ processor_cores, processor_count, processor_threads_per_core):
+ """
+ Return irqbalance CPU mask.
+ Args:
+ processor_cores (int): Physical processor unit.
+ processor_counts (int): Processors per physical unit.
+ processor_threads_per_core (int): Threads per physical unit.
+ Returns:
+ str: irqbalance_banned_cpus.
+ """
+ mask = int("1" * 128, 2)
+
+ for i in range(processor_count * processor_threads_per_core):
+ mask &= ~(1 << i * processor_cores)
+
+ import re
+ return ",".join(re.findall('.{1,8}', str(hex(mask))[2:]))
+
+
+class FilterModule(object):
+ """Return filter plugin"""
+
+ @staticmethod
+ def filters():
+ """Return filter"""
+ return {'irqbalance_banned_cpu_mask': irqbalance_banned_cpu_mask}
Code Review / csit.git / commitdiff