c12s-kubespray/roles/kubernetes/preinstall/tasks/0080-system-configurations.yml

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---
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# Todo : selinux configuration
- name: Confirm selinux deployed
stat:
path: /etc/selinux/config
when:
- ansible_os_family == "RedHat"
- "'Amazon' not in ansible_distribution"
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register: slc
- name: Set selinux policy
selinux:
policy: targeted
state: "{{ preinstall_selinux_state }}"
when:
- ansible_os_family == "RedHat"
- "'Amazon' not in ansible_distribution"
- slc.stat.exists
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changed_when: False
tags:
- bootstrap-os
- name: Disable IPv6 DNS lookup
lineinfile:
dest: /etc/gai.conf
line: "precedence ::ffff:0:0/96 100"
state: present
create: yes
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backup: yes
when:
- disable_ipv6_dns
- not ansible_os_family in ["CoreOS", "Coreos", "Container Linux by CoreOS", "Flatcar", "Flatcar Container Linux by Kinvolk"]
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tags:
- bootstrap-os
- name: Stat sysctl file configuration
stat:
path: "{{ sysctl_file_path }}"
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register: sysctl_file_stat
tags:
- bootstrap-os
- name: Change sysctl file path to link source if linked
set_fact:
sysctl_file_path: "{{ sysctl_file_stat.stat.lnk_source }}"
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when:
- sysctl_file_stat.stat.islnk is defined
- sysctl_file_stat.stat.islnk
tags:
- bootstrap-os
- name: Make sure sysctl file path folder exists
file:
name: "{{ sysctl_file_path | dirname }}"
state: directory
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- name: Enable ip forwarding
sysctl:
sysctl_file: "{{ sysctl_file_path }}"
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name: net.ipv4.ip_forward
value: 1
state: present
reload: yes