不断增长的数据和存储、分析和处理这些数据所需的大量计算能力增加了基础设施需求。随着互联网服务用户数量不断增加,以及伴随着数据挖掘竞赛而带来的海量数据涌入,大数据和云服务开辟了新的数据中心并扩展了现有的数据中心。此外,随着基础设施不断扩展和需求不断增加,以及保持 99.9%的正常运行时间承诺,自动化管理基础设施...
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...
16---name:setanewgrouphosts:allgather_facts:truetasks:-name:setnewgroupgroup_by:key:"{{ansible_distribution}}_{{ansible_distribution_major_version}}"parents:"CentOS"-name:usenewgrouphosts:CentOSgather_facts:falsetasks:-name:pingCentOSping: 上面示例中gather_facts设置为true,因为group_by任务中使用了...
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...
“包含”调用; vars/:此目录中至少应该有一个名为main.yml的文件,用于定义各variable;其它的文件需要由main.yml进行“包含”调用; templates/:存储由template模块调用的模板文本; meta/:此目录中至少应该有一个名为main.yml的文件,定义当前角色的特殊设定及其依赖关系;其它的文件需要由main.yml进行“包含”调用; ...
–{ role: ROLE3, VARIABLE: VALUE, …} –{ role: ROLE4, when: CONDITION } 第一步:创建固定目录结构 ]# mkdir /etc/ansible/roles/nginx/{files,tasks,templates,handlers,vars,default,meta} -pv ]# tree /etc/ansible/roles/nginx/ 第二步:提供各目录下的配置文件 ...
Variable: ANSIBLE_LOG_FILTER DEFAULT_LOG_PATH Description: File to which Ansible will log on the controller. When not set the logging is disabled. Type: path Default: None Ini: Section: [defaults] Key: log_path Environment: Variable: ANSIBLE_LOG_PATH DEFAULT_LOOKUP_PLUGIN_PATH...
tasks:# 关闭防火墙- shell: firewall-cmd --set-default-zone=trusted# 关闭selinux- shell: getenforce register: out - debug:msg="{{out}}"- shell: setenforce0when: out.stdout !="Disabled"- replace: path: /etc/selinux/config regexp:"SELINUX=enforcing"replace:"SELINUX=disabled"- shell: ca...
When created with set_facts’s cacheable option, variables have the high precedence in the play, but are the same as a host facts precedence when they come from the cache. Note Within any section, redefining a var overrides the previous instance. If multiple groups have the same variable, ...
The following Ansible role is used to calculate all derived/computed global variables: pulsar/common/pulsar_setGlobalVars For more detailed description of each derived/computed global variable, please check the comments in the above Ansible script. 3.2.1. Select the right derived/computed global ...