main.yml

# 自动设置LB节点变量'LB_IF'
- name: 注册变量 LB_IF_TMP
  shell: "ip a|grep '{{ inventory_hostname }}/'|awk '{print $NF}'"
  register: LB_IF_TMP

- name: 设置变量 LB_IF
  set_fact: LB_IF="{{ LB_IF_TMP.stdout }}"

- name: apt更新缓存刷新
  apt: update_cache=yes cache_valid_time=72000
  when: ansible_distribution == "Ubuntu" and ansible_distribution_major_version|int >= 16

- name: 安装 haproxy
  package: name=haproxy state=latest

- name: 创建haproxy配置目录
  file: name=/etc/haproxy state=directory

- name: 修改centos的haproxy.service
  template: src=haproxy.service.j2 dest=/usr/lib/systemd/system/haproxy.service
  when: (ansible_distribution == "CentOS" or ansible_distribution == "RedHat") and ansible_distribution_major_version == "7"
  tags: restart_lb

- name: 配置 haproxy
  template: src=haproxy.cfg.j2 dest=/etc/haproxy/haproxy.cfg
  tags: restart_lb

- name: 安装 keepalived
  package: name=keepalived state=latest

- name: 创建keepalived配置目录
  file: name=/etc/keepalived state=directory

- name: 配置 keepalived 主节点
  template: src=keepalived-master.conf.j2 dest=/etc/keepalived/keepalived.conf
  when: LB_ROLE == "master"
  tags: restart_lb

- name: 配置 keepalived 备节点
  template: src=keepalived-backup.conf.j2 dest=/etc/keepalived/keepalived.conf
  when: LB_ROLE == "backup"
  tags: restart_lb

- name: daemon-reload for haproxy.service
  shell: systemctl daemon-reload
  tags: restart_lb

- name: 开机启用haproxy服务
  shell: systemctl enable haproxy
  ignore_errors: true 

- name: 重启haproxy服务
  shell: systemctl restart haproxy
  tags: restart_lb

- name: 开机启用keepalived服务
  shell: systemctl enable keepalived
  ignore_errors: true

- name: 重启keepalived服务
  shell: systemctl restart keepalived
  tags: restart_lb