相干网址

  • Ansible github: https://github.com/ansible/an...
  • Ansible 官网文档: https://docs.ansible.com/

配置 ssh 免密登录

  • 将公钥传送到 ssh 被控服务器
  • 主控端配置（配好后用 ssh node01 测试）

vim ~/.ssh/config

# 将 ip 自身也作为别名之一Host node01 172.31.10.157  HostName 172.31.10.157  Port 22  User ubuntu  IdentityFile  ~/.ssh/id_rsa  Host node02 172.31.15.123  HostName 172.31.15.123  Port 22  User ubuntu  IdentityFile  ~/.ssh/id_rsa

根本命令

  • ping
# ping 所有资产清单上的主机ansible all -m ping# ping node 组的所有主机ansible node -m ping
  • 执行 shell 命令
ansible node -a 'ls /home/ubuntu'
  • 执行脚本
ansible-playbook 1_push.yml

Ansible 配置 Elasticsearch

环境

操作系统: Ubuntu 20.04 LTSPython: 3.8.5Ansible: 2.10.4

资产清单（Inventory）

cat /etc/ansible/hosts

[node]172.31.10.157 ansible_user=ubuntu es_node_name=node01172.31.15.123 ansible_user=ubuntu es_node_name=node02172.31.8.77 ansible_user=ubuntu es_node_name=node03

脚本（Inventory）

  • 推送（1_push.yml）
- hosts: node  user: ubuntu  tasks:     - name: push file to node      copy:         src: /home/ubuntu/es_down        dest: /home/ubuntu        mode: 0660
  • 装置（2_install.yml）
- hosts: node  user: ubuntu  tasks:     - name: Configure jvm.options      become: true      become_user: root      shell: dpkg -i /home/ubuntu/es_down/elasticsearch-7.10.1-amd64.deb
  • 配置 jvm（3_config_jvm.yml）
- hosts: node  user: ubuntu  tasks:     - name: Configure jvm.options      become: true      become_user: root      lineinfile:        dest: '/etc/elasticsearch/jvm.options'        regexp: "{{ item.old }}"        line: "{{ item.new }}"      with_items:        - {old: '^-Xms',new: '-Xms8g' }        - {old: '^-Xmx',new: '-Xmx8g' }
  • 配置 Elasticsearch（4_config_es.yml）
- hosts: node  user: ubuntu  tasks:     - name: Configure elasticsearch.yml      become: true      become_user: root      lineinfile:        dest: '/etc/elasticsearch/elasticsearch.yml'        backrefs: no        state: present        regexp: "{{ item.old }}"        line: "{{ item.new }}"      with_items:        - {old: '^cluster.name', new: 'cluster.name: esapi' }        - {old: '^node.roles', new: 'node.roles: [data]' }        - {old: '^node.name', new: 'node.name: {{ es_node_name }}' }          - {old: '^myhost', new: 'myhost: {{ inventory_hostname }}' }          - {old: '^path.data', new: 'path.data: /data/elasticsearch/data' }          - {old: '^path.log', new: 'path.log: /data/elasticsearch/log' }          - {old: '^network.host', new: 'network.host: 0.0.0.0' }        - {old: '^http.port', new: 'http.port: 9200' }          - {old: '^discovery.seed_hosts', new: 'discovery.seed_hosts: ["172.31.0.1", "172.31.0.2", "172.31.0.3"]' }        - {old: '^cluster.initial_master_nodes', new: 'cluster.initial_master_nodes: ["mnode01", "mnode02", "mnode03"]' }
本文出自 qbit snap