Ansible：在一个计数上有条件地加载一个组变量

Question

1 - name: Test 
2 - hosts: webserv 
3 connection: local 
4 gather_facts: False 
5 
6 tasks: 
7 - name: Provision web instances 
8  local_action: 
9   module: rax 
10   credentials: "{{ rax_cred | mandatory }}" 
11   name: "{{ rax_name | default(w0) }}" 
12   flavor: "{{ rax_flavor | default(6) }}" 
13   image: debian-7-wheezy-pvhvm 
14   files: 
15   /root/.ssh/authorized_keys: "{{ rax_ssh_keys | mandatory }}" 
16   count: "{{ rax_count | default(1) }}" 
17   group: "{{ rax_group }}" 
18   region: DFW 
19   wait: yes 
20   state: present 
21  register: rax 

我有这个剧本，但由于该组的新服务器的名称得到一个数字计数器附加到它。我希望能够将它用于单个服务器实例以及多个服务器实例。有没有办法像我这样做：

如果count超过1，那么设置组变量。

谢谢！

Answer 1

如果我理解正确的话，你想拥有group值仅设置为在rax_count大于1。你要做的这两部剧

- name: Provision web instances 
    local_action: 
     module: rax 
     credentials: "{{ rax_cred | mandatory }}" 
     name: "{{ rax_name | default(w0) }}" 
     flavor: "{{ rax_flavor | default(6) }}" 
     image: debian-7-wheezy-pvhvm 
     files: 
      /root/.ssh/authorized_keys: "{{ rax_ssh_keys | mandatory }}" 
     count: "{{ rax_count | default(1) }}" 
     group: "{{ rax_group if rax_count > 1 else None }}" 
     region: DFW 
     wait: yes 
     state: present 
    register: rax