我正在使用 ansible 一次针对多个服务器运行命令。我想忽略由于“ "SSH Error: data could not be sent to remote host \"1.2.3.4\". Make sure this host can be reached over ssh"”错误而失败的任何主机,因为列表中的某些主机将处于脱机状态。我怎样才能做到这一点?ansible 中是否有默认选项可以忽略离线主机而不会使剧本失败?是否可以选择在ansible剧本之外的单个cli 参数中执行此操作?
更新:我知道ignore_unreachable: true适用于 ansible 2.7 或更高版本,但我在 ansible 2.6.1 环境中工作。
Ale*_*hen 14
我在这里找到了一个很好的解决方案。您在本地 ping 每个主机以查看是否可以连接,然后针对通过的主机运行命令:
---
- hosts: all
connection: local
gather_facts: no
tasks:
- block:
- name: determine hosts that are up
wait_for_connection:
timeout: 5
vars:
ansible_connection: ssh
- name: add devices with connectivity to the "running_hosts" group
group_by:
key: "running_hosts"
rescue:
- debug: msg="cannot connect to {{inventory_hostname}}"
- hosts: running_hosts
gather_facts: no
tasks:
- command: date
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使用 Ansible (2.8) 上的当前版本,这样的事情是可能的:
- name: identify reachable hosts
hosts: all
gather_facts: false
ignore_errors: true
ignore_unreachable: true
tasks:
- block:
- name: this does nothing
shell: exit 1
register: result
always:
- add_host:
name: "{{ inventory_hostname }}"
group: reachable
- name: Converge
hosts: reachable
gather_facts: false
tasks:
- debug: msg="{{ inventory_hostname }} is reachable"
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