ansible-collection-hardening/roles/os_hardening/tasks/sysctl.yml
2020-11-07 22:09:28 +01:00

82 lines
2.4 KiB
YAML

---
- name: protect sysctl.conf
file:
path: '/etc/sysctl.conf'
owner: 'root'
group: 'root'
mode: '0440'
state: touch
modification_time: preserve
access_time: preserve
- name: set Daemon umask, do config for rhel-family | NSA 2.2.4.1
template:
src: 'etc/sysconfig/rhel_sysconfig_init.j2'
dest: '/etc/sysconfig/init'
owner: 'root'
group: 'root'
mode: '0544'
when: ansible_facts.distribution in ['Amazon', 'CentOS', 'Fedora', 'RedHat']
- name: install initramfs-tools
apt:
name: 'initramfs-tools'
state: 'present'
update_cache: true
when:
- ansible_facts.os_family == 'Debian'
- os_security_kernel_enable_module_loading
- name: rebuild initramfs with starting pack of modules, if module loading at runtime is disabled
template:
src: 'etc/initramfs-tools/modules.j2'
dest: '/etc/initramfs-tools/modules'
owner: 'root'
group: 'root'
mode: '0440'
notify:
- update-initramfs
when:
- ansible_facts.os_family == 'Debian'
- os_security_kernel_enable_module_loading
register: initramfs
- name: change sysctls
block:
- name: create a combined sysctl-dict if overwrites are defined
set_fact:
sysctl_config: '{{ sysctl_config | combine(sysctl_overwrite) }}'
when: sysctl_overwrite | default()
- name: Change various sysctl-settings, look at the sysctl-vars file for documentation
sysctl:
name: '{{ item.key }}'
value: '{{ item.value }}'
sysctl_set: true
state: present
reload: true
ignoreerrors: true
with_dict: '{{ sysctl_config }}'
- name: Change various sysctl-settings on rhel6-hosts or older, look at the sysctl-vars file for documentation
sysctl:
name: '{{ item.key }}'
value: '{{ item.value }}'
state: present
reload: true
ignoreerrors: true
with_dict: '{{ sysctl_rhel_config }}'
when: ((ansible_facts.distribution in ['CentOS', 'Fedora', 'RedHat']) and
ansible_distribution_version|int is version('7', '<')) or ansible_facts.distribution == 'Amazon'
when: ansible_virtualization_type not in ['docker', 'lxc', 'openvz']
- name: Apply ufw defaults
template:
src: 'etc/default/ufw.j2'
dest: '/etc/default/ufw'
mode: '0644'
when:
- ufw_manage_defaults
- ansible_facts.distribution in ['Debian', 'Ubuntu']
tags: ufw