ansible loop用法 在Ansible中，循环（loop）是一种强大的机制，它允许你对一组数据执行一系列任务。Ansible支持多种循环方式，以下是一些常见的用法：1. with_items：使用`with_items`关键字可以对列表进行循环。例如：```yaml - name: Loop through a list debug:msg: "Item: {{ item }}"with_items:- ...
# cat register_loop.yml - name: registered variable usage as a loop list hosts: test tasks: - name: ensure /mnt/bkspool exists file: path: /mnt/bkspool state: directory - name: retrieve the list of home directories command: ls /home register: home_dirs - name: Show home_dirs results...
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...
默认情况下可以设置每个循环的循环变量项 ,这会导致这些嵌套循环从“外部”循环覆盖项的值。 从Ansible 2.1开始, loop_control选项可用于指定要用于循环的变量的名称: # main.yml - include: inner.yml with_items: - 1 - 2 - 3 loop_control: loop_var: outer_item # inner.yml - debug: msg: "outer ...
This means the data may contain # jinja2 templating language which will be run through the templating engine. # ENABLING THIS COULD BE A SECURITY RISK #allow_unsafe_lookups = False # set default errors for all plays #any_errors_fatal = False [inventory] # enable inventory plugins, default:...
# a loop with `with_foo`) to return data that is not marked "unsafe". This means the data may contain # jinja2 templating language which will be run through the templating engine. # ENABLING THIS COULD BE A SECURITY RISK #allow_unsafe_lookups = False # set default errors for all plays...
# a loop with `with_foo`) to return data that is not marked "unsafe". This means the data may contain # jinja2 templating language which will be run through the templating engine. # ENABLING THIS COULD BE A SECURITY RISK #allow_unsafe_lookups = False ...
with_items:"{{ somelist }}" 使用with_items迭代循环的变量可以是个单纯的列表,也可以是一个较为复杂 的数据结果,如字典类型: tasks: - name: add several users user: name=` item`.`name ` state=present groups=` item`.`groups ` with_items: ...
# a loop with `with_foo`) to return data that is not marked "unsafe". This means the data may contain # jinja2 templating language which will be run through the templating engine. # ENABLING THIS COULD BE A SECURITY RISK #allow_unsafe_lookups = False ...
Lists are indexed by numbers (starting with zero). So if I want to use the first entry,bands, I usebands[0]. The second element isbands[1]and so forth. Later on, I will discuss methods to inspect, compare, and loop through lists. ...