update

roles/cmoa_os_setting/tasks/00-centos-os-main.yml

@@ -0,0 +1,73 @@
+---
+- name: Update and upgrade yum packages
+  yum:
+    name: "*"
+    state: latest
+
+- name: Install yum packages
+  yum:
+    name: ['cloud-utils', 'ca-certificates', 'socat', 'conntrack', 'gnupg', 'bash-completion']
+    state: present
+
+- name: Disable firewalld
+  systemd: name=firewalld state=stopped
+  ignore_errors: yes
+  tags:
+   - install
+   - atomic
+   - firewalld
+
+- name: Disable SWAP since kubernetes can't work with swap enabled (1/2)
+  command: 'swapoff -a'
+
+- name: Disable SWAP in fstab since kubernetes can't work with swap enabled (2/2)
+  replace:
+    path: /etc/fstab
+    regexp: '^([^#].*?\sswap\s+sw\s+.*)$'
+    replace: '# \1'
+
+- name: Add br_netfilter to module autoload
+  lineinfile:
+    path: /etc/modules-load.d/k8s2.conf
+    line: "{{ item }}"
+    create: true
+  with_items:
+    - 'overlay'
+    - 'br_netfilter'
+
+- name: Add br_netfilter to module autoload
+  modprobe:
+    name: "{{ item }}"
+    state: present
+  become: true
+  with_items:
+    - 'overlay'
+    - 'br_netfilter'
+
+- name: Add br_netfilter to module autoload
+  lineinfile:
+    path: /etc/sysctl.d/k8s.conf
+    line: "{{ item }}"
+    create: true
+  with_items:
+    - 'net.bridge.bridge-nf-call-iptables  = 1'
+    - 'net.bridge.bridge-nf-call-ip6tables = 1'
+    - 'net.ipv4.ip_forward                 = 1'
+
+- name: Disable net.bridge.bridge-nf-call-iptables
+  sysctl:
+    name: "{{ item }}"
+    value: 1
+  with_items:
+    - 'net.bridge.bridge-nf-call-iptables'
+    - 'net.bridge.bridge-nf-call-ip6tables'
+
+- name: Disable net.ipv4.ip_forward
+  sysctl:
+    name: net.ipv4.ip_forward
+    value: "1"
+
+- name: Setting hosts file
+  template:
+    src: hosts.j2
+    dest: /etc/hosts