debug:msg:"variable output is {{output}}"when:outputisdefined-name:variableisnot defined debug:msg:"variable output is not defined"when:outputisundefined 执行结果: image-20210924105233861.png 与循环一起使用 如果将when与循环一起使用时,ansible会为每个循环项都执行单独的条件判断,不满足条件的项就会跳过。
Variable: ANSIBLE_COW_SELECTION ANSIBLE_FORCE_COLOR Description: This option forces color mode even when running without a TTY or the “nocolor” setting is True. Type: boolean Default: False Ini: Section: [defaults] Key: force_color Environment: Variable: ANSIBLE_FORCE_COLOR ANSIBL...
应用中的自定义参数中未配置“xxxx”参数。检查部署失败的应用中,是否配置了“xxxx”参数。若未配置该参数,则新建自定义参数“xxxx”。若已配置该参数,请联系技术支持处理。
msg: "this variable is number" when: var1 is number - name: task2 debug: msg: "this variable is number" when: var2 is number - name: task3 debug: msg: "this variable is number" when: var3 is number 0 18:45:54 root@ck-ansible,172.16.2.9:/server/ops_ansible # ansible-playbook...
when: run_my_task 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 以下示例测试my_service变量是否具有值。若有值,则将my_service的值用作要安装的软件包的名称。如果未定义my_service变量,则跳过任务且不显示错误。 --- - name: Test Variable is Defined Demo ...
# This variable is set to True by default for backwards compatibility. It # will be changed to a default of 'False' in a future release. # ansible_facts. # inject_facts_as_vars = True #roles_path = /etc/ansible/roles #role存放路径 #host_key_checking = False #是否检查SSH主机的密钥...
Ansible中的when条件是一个非常强大的功能,它允许你在Playbook中根据特定条件执行任务。以下是关于如何正确使用when条件的一些基础概念和相关信息: 基础概念 when条件允许你基于变量、事实(facts)、先前任务的输出或其他表达式的结果来决定是否执行某个任务。这使得Playbook更加灵活和动态。
# The -tt argument is passed to ssh when pipelining is not enabled because sudo # requires a tty by default. #use_tty = True [persistent_connection] # Configures the persistent connection timeout value in seconds. This value is # how long the persistent connection will remain idle before ...
"unreachable": true } 10.0.0.132 | CHANGED | rc=0 >> mcw2 2、指定用户密码执行命令 [root@mcw1 ~]$ cat mcw.txt [mcw]10.0.0.13210.0.0.133ansible_ssh_user='root'ansible_ssh_pass='123456'[root@mcw1~]$ ansible -i mcw.txt mcw -m shell -a"hostname"10.0.0.132| CHANGED | rc=0>>...
[WARNING]: The loop variable 'item' is already in use. You should set the `loop_var` value in the `loop_control` option for the task to something else to avoid variable collisions and unexpected behavior. ok: [10.1xx.xx.xx] => (item=None) => { "msg": [ "my_var: 10.134.34.34...