在安装角色之前如何等待 ssh 在主机上可用?
How to wait for ssh to become available on a host before installing a role?
有没有办法在安装角色之前等待 ssh 在主机上可用?有 wait_for_connection
但我只是想出了如何在任务中使用它。
这个特定的剧本在尝试安装角色之前在云提供商上启动服务器。但失败,因为主机上的 ssh 服务尚不可用。
我应该如何解决这个问题?
---
- hosts: localhost
connection: local
tasks:
- name: Deploy vultr servers
include_tasks: create_vultr_server.yml
loop: "{{ groups['vultr_servers'] }}"
- hosts: all
gather_facts: no
become: true
tasks:
- name: wait_for_connection # This one works
wait_for_connection:
delay: 5
timeout: 600
- name: Gather facts for first time
setup:
- name: Install curl
package:
name: "curl"
state: present
roles: # How to NOT install roles UNLESS the current host is available ?
- role: apache2
vars:
doc_root: /var/www/example
message: 'Hello world!'
- common-tools
Ansible 播放操作以 pre_tasks
开头,然后是 roles
,然后是 tasks
,最后是 post_tasks
。将您的 wait_for_connection
任务移至第一个 pre_tasks
,它将阻止所有内容,直到连接可用:
- hosts: all
gather_facts: no
become: true
pre_tasks:
- name: wait_for_connection # This one works
wait_for_connection:
delay: 5
timeout: 600
roles: ...
tasks: ...
有关执行顺序的更多信息,请参阅 this title in role's documentation(注释上方的段落)。
注意:您可能也想将所有当前示例任务移到该部分,以便在执行任何其他操作之前收集事实并安装 curl。
有没有办法在安装角色之前等待 ssh 在主机上可用?有 wait_for_connection
但我只是想出了如何在任务中使用它。
这个特定的剧本在尝试安装角色之前在云提供商上启动服务器。但失败,因为主机上的 ssh 服务尚不可用。
我应该如何解决这个问题?
---
- hosts: localhost
connection: local
tasks:
- name: Deploy vultr servers
include_tasks: create_vultr_server.yml
loop: "{{ groups['vultr_servers'] }}"
- hosts: all
gather_facts: no
become: true
tasks:
- name: wait_for_connection # This one works
wait_for_connection:
delay: 5
timeout: 600
- name: Gather facts for first time
setup:
- name: Install curl
package:
name: "curl"
state: present
roles: # How to NOT install roles UNLESS the current host is available ?
- role: apache2
vars:
doc_root: /var/www/example
message: 'Hello world!'
- common-tools
Ansible 播放操作以 pre_tasks
开头,然后是 roles
,然后是 tasks
,最后是 post_tasks
。将您的 wait_for_connection
任务移至第一个 pre_tasks
,它将阻止所有内容,直到连接可用:
- hosts: all
gather_facts: no
become: true
pre_tasks:
- name: wait_for_connection # This one works
wait_for_connection:
delay: 5
timeout: 600
roles: ...
tasks: ...
有关执行顺序的更多信息,请参阅 this title in role's documentation(注释上方的段落)。
注意:您可能也想将所有当前示例任务移到该部分,以便在执行任何其他操作之前收集事实并安装 curl。