when:(boolean condition) Ensure to pass a condition that evaluates to either true or false. For example: when:ansible_pkg_mgr =="yum" when:ansible_user_shell" == "/bin/bash" If you want to combine multiple conditions, you can use logical operators such as and, or, and not. when:(c...
第二个任务调用shell模块,echo了'This is a string for testing error'这句话,并且将返回值注册到了'return_value'变量中,'failed_when'关键字与shell关键字对齐,表示其对应的条件是针对shell模块的,'failed_when'对应的条件是"error” in return_value.stdout",表示"error"字符串如果存在于shell模块执行后的标准...
Another common use case for the "when" condition is to run tasks based on the value of a variable. For instance, you may want to perform different tasks based on the operating system of the target host. You can achieve this by using the "ansible_distribution" variable along with the "wh...
Using When Condition with the logical OR Operator Conclusion Key Takeaways What is the when Condition in Ansible? The when condition in Ansible is used to control whether a task or a role should be executed. It evaluates an expression and runs the task only if the condition evaluates to true...
If you want the task to fail when only one condition is satisfied, change thefailed_whendefinition to failed_when:result.rc == 0 or "No such" not in result.stderr If you have too many conditions to fit neatly into one line, you can split it into a multi-line YAML value with>. ...
因为您在字典上使用with_items，所以在循环中只返回其键的列表。因此，item是您想要搜索的关键字。
Summary When including a role with name: Include role include_role: name: my_role when: my_conditional I am given the following error: ERROR! Unexpected Exception, this is probably a bug: 'NoneType' object has no attribute '_play' Issue ...
when:condition 当条件满足时,则在远程系统上执行任务。 让我们看看一些例子: 示例1:使用When运算符 ---hosts:all tasks:-name:InstallNginxonDebianapt:name=nginx state=present when:ansibel_os_family=="Debian" 上面的play在运行Debian发行版系列的主机上安装了Nginx Web服务器。 你...
ansible-doc -s wait_for - name: Waits for a condition before continuing. action: wait_for delay # 在检查操作进行之前等待的秒数 host # 等待这个主机处于启动状态,默认为127.0.0.1 port # 等待这个端口已经开放 path # 这个文件是否已经存在 search_regex # 在文件中进行正则匹配 state # present/starte...
Conditionals with roles There are three ways to apply conditions to roles: Add the same condition or conditions to all tasks in the role by placing yourwhenstatement under theroleskeyword. See the example in this section. Add the same condition or conditions to all tasks in the role by ...