[Ansible] 使用Ansible 安裝 Debian 套件 的 yml

[Ansible] 使用Ansible 安裝 Debian 套件 的yml

 

#Step 01 –

ssh-copy-id root@192.168.96.160
ssh 'root@192.168.96.160'

ansible -i hosts.yml -m shell -a "reboot" all
或
ansible -i hosts.yml -m shell -a "reboot" server01

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ansible -i hosts.yml -m shell -a "apt install -y sudo" all
或
ansible -i hosts.yml -m apt -a "name=sudo" server01

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# host 可以修改為單主機 也可以使用 all 來套用 host 所有清單
#vi set_python_3_Default_v1.yml
- name: Ansible Set 'python 3'
  hosts: server01
  tasks:

    - name: set '1'
      command: update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1
      register: result

    - name: set '2'
      command: update-alternatives --install /usr/bin/python python /usr/bin/python3.7 2
      register: result

    - name: print stdout
      debug:
        msg: "{{ result.stdout }}"
        
    - name: Ansible Update Cache and install python3-pip
      apt:
        name:
          - python3-pip
          
    - name: set '3'
      file:
        src: "/usr/bin/pip3"
        dest: "/usr/bin/pip"
        state: link     
		
# 執行 ansible-playbook set_python_3_Default_v1.yml -i hosts.yml
###########################################################

# vi test_apt_module4.yml 將下面內容貼到 檔案內

 - name: Ansible apt module examples Common and general Pakete installieren
   hosts: server01
   become: true
   tasks:
    - name: Ansible Update Cache and install openssl
      apt:
        name:
          - make
          - gcc
          - curl
          - wget
          - vim
          - git-core
          - git
        state: latest
        update_cache: yes
		
# 執行  ansible-playbook test_apt_module4.yml -i hosts.yml

 

#Step 02 –

[13:24:04 root@Debian10-3-Jenkins-Ansible-03 ~/anslab]# cat hosts.yml
[lemp]
server01 ansible_host=192.168.96.160
server02 ansible_host=192.168.96.161
server03 ansible_host=192.168.96.162
server04 ansible_host=192.168.96.163
server05 ansible_host=192.168.96.164
server06 ansible_host=192.168.96.165

[lemp:vars]
ansible_python_interpreter=/usr/bin/python3

[13:27:49 root@Debian10-3-Jenkins-Ansible-03 ~/anslab]#

 

#Step 03 –

我的 hosts.yml 範例

[lemp]
server01 ansible_host=192.168.96.160
server02 ansible_host=192.168.96.161
server03 ansible_host=192.168.96.162
server04 ansible_host=192.168.96.163
server05 ansible_host=192.168.96.164
server06 ansible_host=192.168.96.165

[lemp:vars]
ansible_python_interpreter=/usr/bin/python3

[webdb]
DBserver01 ansible_host=192.168.96.170
DBserver02 ansible_host=192.168.96.171
DBserver03 ansible_host=192.168.96.172
DBserver04 ansible_host=192.168.96.173
DBserver05 ansible_host=192.168.96.174
DBserver06 ansible_host=192.168.96.175

[webdb:vars]
ansible_python_interpreter=/usr/bin/python3

[DebianGroup:children]
lemp
webdb

################################################################

延續上面的 Groups of Groups 當作 Inventory file 的範例

playbook 則修改如下：

#vi set_python_3_Default_v1.yml
---
- name: Ansible Set 'python 3'
  hosts: "{{ VMhost }}"
  tasks:

    - name: set '1'
      command: update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1
      register: result

    - name: set '2'
      command: update-alternatives --install /usr/bin/python python /usr/bin/python3.7 2
      register: result

    - name: print stdout
      debug:
        msg: "{{ result.stdout }}"
        
    - name: Ansible Update Cache and install python3-pip
      apt:
        name:
          - python3-pip
          
    - name: set '3'
      file:
        src: "/usr/bin/pip3"
        dest: "/usr/bin/pip"
        state: link    

於是當我執行 playbook 時，我可以透過 -e 改變 VMhost 的值，以此來彈性的決定本次要套用的 hosts 爲何。

例如：
ansible-playbook -i hosts.yml set_python_3_Default_v1.yml -e VMhost=DebianGroup
如此所有主機都會被套用 playbook。

ansible-playbook -i hosts.yml set_python_3_Default_v1.yml -e VMhost=lemp
如此只有 lemp 這個 Group 會被套用 playbook。

ansible-playbook -i hosts.yml set_python_3_Default_v1.yml -e VMhost=server01
如此只有 server01 這台主機會被套用 playbook。

ssh-copy-id root@192.168.96.160
ssh 'root@192.168.96.160'
# 如果直接使用 shell 模式 
ansible -i hosts.yml -m shell -a "reboot" server01

ansible -i hosts.yml -m shell -a "apt install -y sudo" server01

 

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