Ansible Tips(qbit)

関連サイト

Ansible github: https://github.com/ansible/an...

Ansible公式ドキュメント:https://docs.ansible.com/

ssh非密ログインの構成

は、公開鍵をssh制御サーバ

に送信する.

マスタ端子配置(装着後ssh node01で試験)

vim ~/.ssh/config

#   ip  
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

基本コマンド

ping

# ping  
ansible all -m ping
# ping node  
ansible node -m ping

shellコマンド

を実行

ansible node -a 'ls /home/ubuntu'

実行スクリプト

ansible-playbook 1_push.yml

Ansible構成Elasticsearch

環境

 : Ubuntu 20.04 LTS
Python: 3.8.5
Ansible: 2.10.4

資産構成表(Inventory)

cat /etc/ansible/hosts

[node]
172.31.10.157 ansible_user=ubuntu es_node_name=node01
172.31.15.123 ansible_user=ubuntu es_node_name=node02
172.31.8.77 ansible_user=ubuntu es_node_name=node03

スクリプト(Inventory)

プッシュ(copy)

# 1_push.yml
- hosts: node
  user: ubuntu
  tasks: 
    - name: push file to node
      copy: 
        src: /home/ubuntu/es_down
        dest: /home/ubuntu
        mode: 0660

取付(shell)

# 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(lineinfile)

# 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(lineinfile)

# 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: ["node01", "node02", "node03"]' }  

本文は
qbit snap