- name: Insert multiple variables into a list using loop hosts: localhost vars: var1: "value1" var2: "value2" var3: "value3" tasks: - name: Create a list with multiple variables set_fact: my_list: [] - name: Insert variables into the list set_fact: my_list: "{{ my_list +...
how this works, otherwise it can break module execution #network_group_modules=eos, nxos, ios, iosxr, junos, vyos # When enabled, this option allows lookups (via variables like {{lookup('foo')}} or when used as # a loop with `with_foo`) to return data that is not marked "unsafe...
1. Iteration Loop(with_items) 1.1 Compile and install through loop root@ansible-server:/data/ansible/nginx# ` vim install_nginx.yaml --- -hosts:webservers tasks: -name:installpackages yum: name:"{{ item }}" loop: -gcc -make -pcre-devel -openssl-devel -zlib-devel -perl-ExtUtils-Embed...
playbooks是ansible的脚本、如同shell脚本一样,它是控制远程主机的一系列命令的集合,通过YAML语言编写。执行一些简单的任务,我们可以使用ad-hoc命令就可以解决,对于一些较复杂的任务,ad-hoc就不能胜任了,这时候playbooks就派上用场了,在playbooks中可以编排有序的执行过程,甚至可以在多组机器间来回有序的执行特定的步...
allows lookups (via variables like {{lookup('foo')}} or whenused as # a loop with `with_foo`) to return data that is not marked "unsafe". This means thedata may contain # jinja2 templating language which will be run through the templating engine # ENABLING THIS COULD BE A ...
Ansible allows Jinja2 loops and conditionals intemplatesbut not in playbooks. You cannot create a loop of tasks. Ansible playbooks are pure machine-parseable YAML. When to quote variables (a YAML gotcha) If you start a value with{{foo}}, you must quote the whole expression to create ...
- name:Createmultipleusers user: name:"{{ item }}" state:present loop: - alice - bob - charlie 4.3 Conditionals Conditionals 允许你根据条件决定是否执行某个任务。 • 示例: - name:Installpackageifnotinstalled apt: name...
loop模块一般在下面的场景中使用: 类似的配置模块重复了多遍 fact是一个列表 创建多个文件,然后使用assemble聚合成一个大文件 使用with_fileglob匹配特定的文件管理 六、Playbook 条件语句 在有的时候play的结果依赖于变量、fact或者是前一个任务的执行结果,从而需要使用到条件语句。 以下主要来自他人分享。 1、when 有...
how this works, otherwise it can break module execution #network_group_modules=eos, nxos, ios, iosxr, junos, vyos # When enabled, this option allows lookups (via variables like {{lookup('foo')}} or when used as # a loop with `with_foo`) to return data that is not marked "unsafe...
关于什么ansible,我这里就不做科普了,总之一句话,要做分布式系统的运维,实现批量系统配置、批量程序部署、批量运行命令等功能,ansible就是一大杀器,能令你事半功倍。 但作为一个cli工具,其使用场景还是受cli的限制,无法实现运行过程中更深入的交互和逻辑控制。ansible本身是用python做的,所以实际上是和python的脚本控...