- fail: msg="The variable 'bar' is empty" when: bar|length == 0 - shell: echo "The variable 'foo' is not empty: '{{ foo }}'" when: foo|length > 0 Check if Ansible variableis definedandnot empty: tasks: - shell: echo "The variable 'foo' is defined and not empty" when: ...
第一种方法是使用"when"关键字和"not"判断变量是否为空。当变量为空时,可以使用"not variable"的形式来判断。下面是一个示例: ``` - name: 判断变量是否为空 hosts: test vars: var1: "" var2: "ansible" tasks: - name: 当变量 var1 为空时,执行某个任务 debug: msg: "var1 is empty" when: ...
- hosts: web tasks: - name: install httpd server yum: name=httpd state=present - name: service httpd server service: name=httpd state=started enabled=yes - name: check httpd state shell: ps aux|grep httpd register: httpd_status - name: output httpd_status variable debug: msg: "{{httpd...
The default is 'replace' but # this can also be set to 'merge'. #hash_behaviour = replace #ansible 主机变量重复处理方式 # by default, variables from roles will be visible in the global variable # scope. To prevent this, the following option can be enabled, and only # tasks and handle...
When using symbols such as %, they must be properly escaped. * This module is maintained by The Ansible Community OPTIONS (= is mandatory): - backup If set, create a backup of the crontab before it is modified. The location of the backup is returned in the `backup_file' variable by ...
Using a SSH password instead of a key is not possible because Host Key checking is enabled and sshpass does not support this. Please add this host's fingerprint to your known_hosts file to manage this host. 10.0.0.132 | CHANGED | rc=0 >> ...
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 ANSIBLE_HOME Description: The default root path for Ansible config fil...
ansible 过来WARNING ansible when 有时候我们希望在某些情况对特定主机执行、不执行一些操作。例如给某主机安装特定的软件,或者在磁盘快满时执行清理工作。 when when语句就是用来实现这个功能的,它是一个jinja2的语法,但是不需要双大括号,他真的很简单: AI检测代码解析...
The default is 'replace' but # this can also be set to 'merge'. #hash_behaviour = replace # by default, variables from roles will be visible in the global variable # scope. To prevent this, the following option can be enabled, and only # tasks and handlers within the role will see...
When you read this playbook it is clear that you have chosen to set a variable or override a default. You can also pass multiple values, which allows you to run the same role multiple times. SeeRunning a role multiple times in one playfor more details. For example: ...