Ansible 學習筆記

按照範例操作中

  
    ## 安裝 ansible
    sudo apt-get install ansible

    ## Inventory, default 是 /etc/ansible/hosts
    ## 把所有 hosts 的 ip address 寫到 Inventory
    ## host 之後可以加一下 ansible-user 之類的參數來做變化
    vim /etc/ansible/hosts 

    ## 產生 ssh key，並且複製 Public key 到 ~/.ssh/authorized_keys
    ssh-keygen
    ssh-agent bash 
    ssh-add ~/.ssh/id_rsa
    cp ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys 

    ## 把 public key 寫入其他的 remote host，所有 hosts 都要做
    cat ~/.ssh/id_rsa.pub | ssh user@hostname 'cat >> .ssh/authorized_keys'  

    sudo chmod 700 ~/.ssh/
    sudo chmod 600 ~/.ssh/*

    ## ping 測試，成功的話就表示 hosts 之間可以連通了，如下面的樣子
    ## 加 -vvvv 可以印出 debug message 
    ansible all -m ping 

        192.168.1.131 | success >> {
            "changed": false,
            "ping": "pong"
        }

        192.168.1.254 | success >> {
            "changed": false,
            "ping": "pong"
        }
    
  

Playbook 範例, 設定 dns server 到 8.8.8.8 ，並且做 apt-get install git 執行方式 ansible-playbook test_apt_module.yml 以下是 test_apt_module.yml 的內容 --- - name: Using Iteration (with_item) to install multiple packages hosts: - test_servers roles: - { role: resolv_conf, resolv_conf_file: /etc/resolv.conf, sudo: True } tasks: - name: install apt packages sudo: True apt: pkg={{ item }} update_cache=yes cache_valid_time=3600 force=yes with_items: - git


參考網址:
http://ryandlane.com/blog/2014/08/04/moving-away-from-puppet-saltstack-or-ansible/


https://nsrc.org/workshops/2016/sanog27/raw-attachment/wiki/Track2Virt/install-setup-ansible.htm