May 22, 2019 · Ansible already defines a rich set of variables, individual for each system. Whenever Ansible will run on a system, all facts and information about the system are gathered and set as variables. But there is a rule for naming variables. Ansible Variables. In playbooks, the variable is very similar to using the variables in a programming language. It helps you to assign a value to a variable and use it anywhere in the playbook. You can put the conditions around the value of the variables and use them in the playbook accordingly. Creating Valid Variable Names
除了`vars_prompt`和`vars_files`也可以通过Ansible命令行发送变量.如果你想编写一个通用的发布playbook时则特别有用,你可以传递应用的版本以便部署: ansible - playbook release . yml -- extra - vars "version=1.23.45 other_variable=foo" Each time Ansible executes a task, the first step is to collect facts about nodes. These facts can be access with the hostvars variable. Let’s write a playbook that prints the hostvars for each...
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