Playbook

时间:2017-09-18 13:30:13

标签: ansible

我在物理主机上配置了一堆系统(VM)。我正在运行虚拟机的步骤。现在我需要通过DHCP地址ssh进入VM。我可以从服务器中提取IP地址,但我需要一种方法将这些设置为host_vars。以下是我的小组:

ok: [kvm01] => {
    "msg": {
        "all": [
            "kvm01",
            "dcos-master-1",
            "dcos-agent-1",
            "dcos-agent-2",
            "dcos_bootstrap"
        ],
        "dcos": [
            "dcos-master-1",
            "dcos-agent-1",
            "dcos-agent-2",
            "dcos_bootstrap"
        ],
        "dcos-agents": [
            "dcos-agent-1",
            "dcos-agent-2"
        ],
        "dcos-bootstraps": [
            "dcos_bootstrap"
        ],
        "dcos-masters": [
            "dcos-master-1"
        ],
        "kvm": [
            "kvm01"
        ],
        "ungrouped": []
    }
}

这是我的命令:

- name: Get the IP of the VM (DHCP)
  command: "/getip.sh {{ item }}"
  register: "result"
  with_items: "{{ groups['dcos'] }}"

- name: List the output of the variables
  debug: msg="{{item.stdout}}"
  with_items: "{{result.results}}"

当我运行playbook时,我得到了结果,但它们是命令的FULL JSON结果而不是stdout。这可能是一种拉出标准输出并将其分配给事实的方法,但它是一个复杂的哈希。这是最后的结果:

TASK [vm_install : Get the IP of the VM (DHCP)] ***************************************************************************
changed: [kvm01] => (item=dcos-master-1)
changed: [kvm01] => (item=dcos-agent-1)
changed: [kvm01] => (item=dcos-agent-2)
changed: [kvm01] => (item=dcos_bootstrap)

TASK [vm_install : List the output of the variables] **********************************************************************
......
    ok: [kvm01] => (item={'_ansible_parsed': True, 'stderr_lines': [u'] => {
    "item": {
        "changed": false,
        "cmd": [
            "/getip.sh",
            "dcos_bootstrap"
        ],
        "delta": "0:00:00.056193",
        "end": "2017-09-18 15:45:45.409693",
        "invocation": {
            "module_args": {
                "_raw_params": "/getip.sh dcos_bootstrap",
                "_uses_shell": false,
                "chdir": null,
                "creates": null,
                "executable": null,
                "removes": null,
                "warn": true
            }
        },
        "item": "dcos_bootstrap",
        "rc": 0,
        "start": "2017-09-18 15:45:45.353500",
        "stderr": " ",
        "stdout": "192.168.1.130",
        "stdout_lines": [
            "192.168.1.130"
        ]
    },
    "msg": "192.168.1.130"
}

如何将命令的输出放入数组中,以便我以后可以在我的剧本中使用它?

1 个答案:

答案 0 :(得分:1)

所以,就像我在评论中所说,你已经设法将你想要的信息提取到一个数组中。您可以使用with_items迭代这些项目,如以下任务中为每个主机创建ip_address

- set_fact:
    ip_address:  "{{ item.stdout }}"
  with_items: "{{ results.results }}"
  delegate_to: "{{ item.item }}"
  delegate_facts: true

或者您可以使用Jinja过滤器创建包含所有地址的单个数组:

- set_fact:
    all_ip_addresses: "{{ results.results|map(attribute='stdout')|list }}"

或者您可以使用相同的信息创建字典:

- set_fact:
    all_ip_addresses: >
      {{ all_ip_addresses
         |default({})
         |combine({ item.item: item.stdout })}}
  with_items: "{{ results.results }}"