Files
k3s-ansible/roles/prereq/tasks/main.yml
T
Techno Tim 88159b3875 fix(prereq): install kernel-modules-extra when br_netfilter is missing (#684)
- On RHEL 10 / Rocky Linux 10 the default cloud image does not ship the
  kernel-modules-extra that contains br_netfilter, so modprobe br_netfilter
  fails during prereq on RedHat family
- Detect whether the module exists and install kernel-modules-extra when absent
- No reboot is required: the module is installed for the currently running kernel
  and becomes available to modprobe immediately
2026-08-03 14:55:07 +00:00

91 lines
2.3 KiB
YAML

---
- name: Set same timezone on every Server
community.general.timezone:
name: "{{ system_timezone }}"
when: (system_timezone is defined) and (system_timezone != "Your/Timezone")
- name: Set SELinux to disabled state
ansible.posix.selinux:
state: disabled
when: ansible_os_family == "RedHat"
- name: Enable IPv4 forwarding
ansible.posix.sysctl:
name: net.ipv4.ip_forward
value: "1"
state: present
reload: true
tags: sysctl
- name: Enable IPv6 forwarding
ansible.posix.sysctl:
name: net.ipv6.conf.all.forwarding
value: "1"
state: present
reload: true
tags: sysctl
- name: Enable IPv6 router advertisements
ansible.posix.sysctl:
name: net.ipv6.conf.all.accept_ra
value: "2"
state: present
reload: true
tags: sysctl
- name: Check if br_netfilter module exists
ansible.builtin.shell: |
set -o pipefail
find /lib/modules/$(uname -r) -name "br_netfilter.ko*" | wc -l
args:
executable: /bin/bash
register: br_netfilter_exists
changed_when: false
when: ansible_os_family == "RedHat"
tags: sysctl
- name: Install kernel-modules-extra if br_netfilter missing
ansible.builtin.yum:
name: kernel-modules-extra
state: present
update_cache: true
register: kernel_modules_installed
when:
- ansible_os_family == "RedHat"
- br_netfilter_exists.stdout | int == 0
- name: Add br_netfilter to /etc/modules-load.d/
ansible.builtin.copy:
content: br_netfilter
dest: /etc/modules-load.d/br_netfilter.conf
mode: u=rw,g=,o=
when: ansible_os_family == "RedHat"
- name: Load br_netfilter
community.general.modprobe:
name: br_netfilter
state: present
when: ansible_os_family == "RedHat"
- name: Set bridge-nf-call-iptables (just to be sure)
ansible.posix.sysctl:
name: "{{ item }}"
value: "1"
state: present
reload: true
when: ansible_os_family == "RedHat"
loop:
- net.bridge.bridge-nf-call-iptables
- net.bridge.bridge-nf-call-ip6tables
tags: sysctl
- name: Add /usr/local/bin to sudo secure_path
ansible.builtin.lineinfile:
line: Defaults secure_path = {{ secure_path[ansible_os_family] }}
regexp: Defaults(\s)*secure_path(\s)*=
state: present
insertafter: EOF
path: /etc/sudoers
validate: visudo -cf %s
when: ansible_os_family in [ "RedHat", "Suse" ]