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Ansible通过库存嵌套循环

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我正在查看Ansible https://docs.ansible.com/ansible/2.7/user_guide/playbooks_loops.html的循环页面，但我找不到我要找的东西......

我想测试一个“源”主机是否可以到达/连接到一组端口上的一组目标主机 . 例如，每组目标主机可以是库存组，并且每个库存组具有它们自己要测试的端口的列表 .

我们的想法是只指定两个vars作为playbook的输入：一组主机列表和一个或多个源主机的列表 .

循环应该怎么做？库存可以是YAML或INI文件：每个组一个或多个 . TCP连接的测试很简单......因此重点仅在于输入变量和循环结构 .

感谢致敬 .

燕姿

ansible ansible-inventory

1 回答

  • 0

    给出以下 hosts 库存文件

    server1
server2
server3

[dev]
d1
d2
d3

[dev:vars]
ports=8080,8443

[int]
i1
i2
i3

[int:vars]
ports=80,443

    和以下的剧本 play.yml

    ---
- hosts: all
  gather_facts: False
  vars:
    group: 'dev'

  tasks:
  - name: Just loop through a group and group_vars
    debug:
      msg: 'group is {{group}} target is {{item.0}} port is {{item.1}}'
    loop: >
      {{ groups[group] |
         product(hostvars[groups[group][0]]["ports"]) |
         list }}

    如您所述，您可以循环浏览您的库存

    ansible-playbook -i hosts play.yml -l server* -e group=int

    产生以下结果：

    PLAY [all] *********************************************************************

TASK [Just loop through a group and group_vars] ********************************
ok: [server1] => (item=[u'i1', 80]) => {
    "msg": "group is int target is i1 port is 80"
}
ok: [server1] => (item=[u'i1', 443]) => {
    "msg": "group is int target is i1 port is 443"
}
ok: [server2] => (item=[u'i1', 80]) => {
    "msg": "group is int target is i1 port is 80"
}
ok: [server2] => (item=[u'i1', 443]) => {
    "msg": "group is int target is i1 port is 443"
}
ok: [server1] => (item=[u'i2', 80]) => {
    "msg": "group is int target is i2 port is 80"
}
ok: [server3] => (item=[u'i1', 80]) => {
    "msg": "group is int target is i1 port is 80"
}
ok: [server1] => (item=[u'i2', 443]) => {
    "msg": "group is int target is i2 port is 443"
}
ok: [server3] => (item=[u'i1', 443]) => {
    "msg": "group is int target is i1 port is 443"
}
ok: [server2] => (item=[u'i2', 80]) => {
    "msg": "group is int target is i2 port is 80"
}
ok: [server1] => (item=[u'i3', 80]) => {
    "msg": "group is int target is i3 port is 80"
}
ok: [server3] => (item=[u'i2', 80]) => {
    "msg": "group is int target is i2 port is 80"
}
ok: [server2] => (item=[u'i2', 443]) => {
    "msg": "group is int target is i2 port is 443"
}
ok: [server1] => (item=[u'i3', 443]) => {
    "msg": "group is int target is i3 port is 443"
}
ok: [server3] => (item=[u'i2', 443]) => {
    "msg": "group is int target is i2 port is 443"
}
ok: [server2] => (item=[u'i3', 80]) => {
    "msg": "group is int target is i3 port is 80"
}
ok: [server3] => (item=[u'i3', 80]) => {
    "msg": "group is int target is i3 port is 80"
}
ok: [server2] => (item=[u'i3', 443]) => {
    "msg": "group is int target is i3 port is 443"
}
ok: [server3] => (item=[u'i3', 443]) => {
    "msg": "group is int target is i3 port is 443"
}

PLAY RECAP *********************************************************************
server1                    : ok=1    changed=0    unreachable=0    failed=0
server2                    : ok=1    changed=0    unreachable=0    failed=0
server3                    : ok=1    changed=0    unreachable=0    failed=0

    您只需将调试替换为wait_for module即可 .

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