Loading... <blockquote>在本博客中,ansible是一个系列文章,我们会尽量以通俗易懂的方式总结ansible的相关知识点。 ansible系列博文直达链接:<a href="https://www.zsythink.net/archives/tag/ansible/" target="_blank" rel="noopener">ansible轻松入门系列</a> “ansible系列”中的每篇文章都建立在前文的基础之上,所以,请按照顺序阅读这些文章,否则有可能在阅读中遇到障碍。</blockquote> 前一篇文章中已经初步的总结了变量的一些使用方法,这篇文章我们继续,只不过,这篇文章所涉及到的内容需要借助两个模块,所以在详细的总结变量的相关使用方法之前,会先描述一下这两个模块的用法。 当我们运行一个playbook时,默认都会运行一个名为”[Gathering Facts]”的任务,前文中已经大致的介绍过这个默认的任务,ansible通过”[Gathering Facts]”这个默认任务收集远程主机的相关信息(例如远程主机的IP地址,主机名,系统版本,硬件配置等信息),其实,这些被收集到的远程主机信息会保存在对应的变量中,当我们想要使用这些信息时,我们可以获取对应的变量,从而使用这些信息。 如果想要查看”[Gathering Facts]”任务收集的信息内容,我们可以借助一个模块:setup模块 当执行playbook时,playbook其实就是自动调用了setup模块从而执行了”[Gathering Facts]”任务,所以我们可以通过手动执行setup模块查看”[Gathering Facts]”任务收集到的信息,示例如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">ansible test70 -m setup</span></div> </div> </div> </div> 上述ad-hoc命令表示收集test70主机的相关信息,执行上述命令后,远程主机test70的相关信息将会输出到ansible主机的控制台上,返回的信息的格式是json格式,我的返回信息如下。 注:由于返回的信息比较多,此处为了方便示例,我将部分内容删除(或折叠省略)了,所以如下返回信息并不完全,只用于示意。 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">test70 </span><span class="enlighter-g0">|</span><span class="enlighter-text"> SUCCESS =</span><span class="enlighter-g1">></span></div> </div> <div class=""> <div><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_facts"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_all_ipv4_addresses"</span><span class="enlighter-text">:</span><span class="enlighter-g1">[</span></div> </div> <div class=""> <div><span class="enlighter-s0">"192.168.122.1"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"192.168.1.106"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"10.1.1.70"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"172.16.66.70"</span></div> </div> <div class=""> <div><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_all_ipv6_addresses"</span><span class="enlighter-text">:Array</span><span class="enlighter-g1">[</span><span class="enlighter-n1">2</span><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_apparmor"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_architecture"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"x86_64"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_bios_date"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"05/19/2017"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_bios_version"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"6.00"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_cmdline"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_date_time"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_default_ipv4"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_default_ipv6"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_device_links"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_devices"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_distribution"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"CentOS"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_distribution_file_parsed"</span><span class="enlighter-text">:</span><span class="enlighter-k1">true</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_distribution_file_path"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"/etc/redhat-release"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_distribution_file_variety"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"RedHat"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_distribution_major_version"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"7"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_distribution_release"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"Core"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_distribution_version"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"7.4.1708"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_dns"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_domain"</span><span class="enlighter-text">:</span><span class="enlighter-s0">""</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_effective_group_id"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_effective_user_id"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_ens33"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_ens34"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_ens35"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"active"</span><span class="enlighter-text">:</span><span class="enlighter-k1">true</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"device"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"ens35"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"features"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"busy_poll"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"fcoe_mtu"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"generic_receive_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"generic_segmentation_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"highdma"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"hw_tc_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"l2_fwd_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"large_receive_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"loopback"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"netns_local"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ntuple_filters"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"receive_hashing"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_all"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_checksumming"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_fcs"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_vlan_filter"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_vlan_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_vlan_stag_filter"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_vlan_stag_hw_parse"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"scatter_gather"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tcp_segmentation_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_checksum_fcoe_crc"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_checksum_ip_generic"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_checksum_ipv4"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_checksum_ipv6"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_checksum_sctp"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_checksumming"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_fcoe_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_gre_csum_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_gre_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_gso_partial"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_gso_robust"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_ipip_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_lockless"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_mpls_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_nocache_copy"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_scatter_gather"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_scatter_gather_fraglist"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_sctp_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_sit_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_tcp6_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_tcp_ecn_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_tcp_mangleid_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_tcp_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_udp_tnl_csum_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_udp_tnl_segmentation"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_vlan_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"on [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_vlan_stag_hw_insert"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"udp_fragmentation_offload"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"vlan_challenged"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"off [fixed]"</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"hw_timestamp_filters"</span><span class="enlighter-text">:</span><span class="enlighter-g1">[</span></div> </div> <div class=""> <div></div> </div> <div class=""> <div></div> </div> <div class=""> <div><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ipv4"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"address"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"10.1.1.70"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"broadcast"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"10.1.1.255"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"netmask"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"255.255.255.0"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"network"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"10.1.1.0"</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ipv6"</span><span class="enlighter-text">:</span><span class="enlighter-g1">[</span></div> </div> <div class=""> <div><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"address"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"fe80::250:56ff:fe25:5fb0"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"prefix"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"64"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"scope"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"link"</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"macaddress"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"00:50:56:25:5f:b0"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"module"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"e1000"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"mtu"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1500</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"pciid"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"0000:02:03.0"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"promisc"</span><span class="enlighter-text">:</span><span class="enlighter-k1">false</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"speed"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1000</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"timestamping"</span><span class="enlighter-text">:</span><span class="enlighter-g1">[</span></div> </div> <div class=""> <div><span class="enlighter-s0">"tx_software"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"rx_software"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"software"</span></div> </div> <div class=""> <div><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"type"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"ether"</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_env"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_fips"</span><span class="enlighter-text">:</span><span class="enlighter-k1">false</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_form_factor"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"Other"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_fqdn"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"test70"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_hostname"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"test70"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_interfaces"</span><span class="enlighter-text">:Array</span><span class="enlighter-g1">[</span><span class="enlighter-n1">6</span><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_kernel"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"3.10.0-693.el7.x86_64"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_lo"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_local"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_lsb"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_lvm"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_machine"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"x86_64"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_machine_id"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"f6d15ac15f624d3db89e843639a52cc0"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memfree_mb"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1121</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memory_mb"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"nocache"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1467</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">:</span><span class="enlighter-n1">356</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"real"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1121</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1823</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">:</span><span class="enlighter-n1">702</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"swap"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"cached"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memtotal_mb"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1823</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_mounts"</span><span class="enlighter-text">:Array</span><span class="enlighter-g1">[</span><span class="enlighter-n1">2</span><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_nodename"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"test70"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_os_family"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"RedHat"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_pkg_mgr"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"yum"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_processor"</span><span class="enlighter-text">:Array</span><span class="enlighter-g1">[</span><span class="enlighter-n1">6</span><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_processor_cores"</span><span class="enlighter-text">:</span><span class="enlighter-n1">2</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_processor_count"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_processor_threads_per_core"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_processor_vcpus"</span><span class="enlighter-text">:</span><span class="enlighter-n1">2</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_product_name"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"VMware Virtual Platform"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_product_serial"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"VMware-56 4d 0d 63 80 3f 29 b4-f0 e2 1b 7a ff 01 a5 9e"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_product_uuid"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"630D4D56-3F80-B429-F0E2-1B7AFF01A59E"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_product_version"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"None"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_python"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_python_version"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"2.7.5"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_real_group_id"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_real_user_id"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_selinux"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_selinux_python_present"</span><span class="enlighter-text">:</span><span class="enlighter-k1">true</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_service_mgr"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"systemd"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_swapfree_mb"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_swaptotal_mb"</span><span class="enlighter-text">:</span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_system"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"Linux"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_system_capabilities"</span><span class="enlighter-text">:Array</span><span class="enlighter-g1">[</span><span class="enlighter-n1">37</span><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_system_capabilities_enforced"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"True"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_system_vendor"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"VMware, Inc."</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_uptime_seconds"</span><span class="enlighter-text">:</span><span class="enlighter-n1">31658</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_user_dir"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"/root"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_user_gecos"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"root"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_user_gid"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_user_id"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"root"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_user_shell"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"/bin/bash"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_user_uid"</span><span class="enlighter-text">:</span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_userspace_architecture"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"x86_64"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_userspace_bits"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"64"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_virbr0"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_virbr0_nic"</span><span class="enlighter-text">:Object</span><span class="enlighter-g1">{</span><span class="enlighter-text">...</span><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_virtualization_role"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"guest"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_virtualization_type"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"VMware"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"gather_subset"</span><span class="enlighter-text">:Array</span><span class="enlighter-g1">[</span><span class="enlighter-n1">1</span><span class="enlighter-g1">]</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"module_setup"</span><span class="enlighter-text">:</span><span class="enlighter-k1">true</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"changed"</span><span class="enlighter-text">:</span><span class="enlighter-k1">false</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> </div> </div> 返回信息如上,是一个json格式的字符串,为了方便你阅读,ansible已经将格式化后的json信息返回到了控制台中,返回的信息很全面,比如: “ansible_all_ipv4_addresses”表示远程主机中的所有ipv4地址,从其对应的值可以看出,test70主机上一共有4个ipv4地址。 “ansible_distribution”表示远程主机的系统发行版,从其对应的值可以看出test70主机的系统发行版为centos “ansible_distribution_version”表示远程主机的系统版本号,从其对应的值与 “ansible_distribution” 的值可以看出test70主机的系统版本为centos7.4 “ansible_ens35″表示远程主机ens35网卡的相关信息,细心如你一定也发现了,我还有两个名为”ens33″和”ens34″的网卡,只不过为了方便示例,这两个网卡的信息被我省略了。 “ansible_memory_mb”表示远程主机的内存配置信息。 返回的信息的确很多,很全面,但是,并不是每一次我们都需要看这么多信息,如果你只是想查看某一类信息,你可以通过关键字对信息进行过滤,比如,我只是想要查看远程主机的内存配置信息,那么我可以使用如下命令 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">ansible test70 -m setup -a </span><span class="enlighter-s0">'filter=ansible_memory_mb'</span></div> </div> </div> </div> 上述命令表示通过”ansible_memory_mb”关键字对返回信息进行过滤,如你所见,通过setup模块的filter参数可以指定需要过滤的关键字,这样ansible就只会将”ansible_memory_mb”的相关信息返回,返回如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">test70 </span><span class="enlighter-g0">|</span><span class="enlighter-text"> SUCCESS =</span><span class="enlighter-g1">></span> <span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_facts"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memory_mb"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"nocache"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1467</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">356</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"real"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1119</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1823</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">704</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"swap"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"cached"</span><span class="enlighter-text">: </span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">0</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"changed"</span><span class="enlighter-text">: </span><span class="enlighter-k1">false</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> </div> </div> 这样就精简很多了,因为精准的返回了你需要的信息,我知道,有的朋友可能跟我一样,记性不好,所以通常记不住准确的关键字,所以我们可以使用通配符,进行相对模糊的过滤,示例如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">ansible test70 -m setup -a </span><span class="enlighter-s0">"filter=*mb*"</span></div> </div> </div> </div> 上述命令表示返回所有包含mb的关键字对应的信息,返回信息如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">test70 </span><span class="enlighter-g0">|</span><span class="enlighter-text"> SUCCESS =</span><span class="enlighter-g1">></span> <span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_facts"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memfree_mb"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1140</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memory_mb"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"nocache"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1475</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">348</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"real"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1140</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1823</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">683</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"swap"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"cached"</span><span class="enlighter-text">: </span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">0</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memtotal_mb"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1823</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_swapfree_mb"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_swaptotal_mb"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"changed"</span><span class="enlighter-text">: </span><span class="enlighter-k1">false</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> </div> </div> 其实,除了这些信息以外,我们还能够在远程主机中写入一些自定义的信息,这些自定义信息也可以被setup模块收集到。 那么,我们应该在哪里定义这些信息呢?该怎样定义这些信息呢? ansible默认会去目标主机的/etc/ansible/facts.d目录下查找主机中的自定义信息,并且规定,自定义信息需要写在以”.fact”为后缀的文件中,同时,这些以”.fact”为后缀的文件中的内容需要是INI格式或者是json格式的。 那么,我们来创建一个测试文件,测试文件路径为test70主机的/etc/ansible/facts.d/testinfo.fact,在文件中写入如下INI格式的信息。 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-g1">[</span><span class="enlighter-text">root@test70 facts.</span><span class="enlighter-m3">d</span><span class="enlighter-c0">]# cat testinfo.fact</span></div> </div> <div class=""> <div><span class="enlighter-g1">[</span><span class="enlighter-text">testmsg</span><span class="enlighter-g1">]</span></div> </div> <div class=""> <div><span class="enlighter-text">msg1=</span><span class="enlighter-k1">This</span><span class="enlighter-text"> is the first custom test message</span></div> </div> <div class=""> <div><span class="enlighter-text">msg2=</span><span class="enlighter-k1">This</span><span class="enlighter-text"> is the second custom test message</span></div> </div> </div> </div> 如上所示,上述内容是一段INI风格的内容,我在”[testmsg]”配置段中配置了两条自定义信息,msg1与msg2。 当然,我们也可以使用json格式进行配置,比如在/etc/ansible/facts.d/testinfo.fact文件中写入如下配置,如下配置与上述配置的效果是相同的,只是书写格式不同。 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"testmsg"</span><span class="enlighter-text">:</span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"msg1"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"This is the first custom test message"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"msg2"</span><span class="enlighter-text">:</span><span class="enlighter-s0">"This is the second custom test message"</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> </div> </div> 通过上述方式,我们可以在目标主机的本地自定义信息,这些在远程主机本地自定义的信息被称为”local facts”,当我们运行setup模块时,远程主机的”local facts”信息也会被收集,我们可以通过”ansible_local”关键字过滤远程主机的”local facts”信息,示例命令如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">ansible test70 -m setup -a </span><span class="enlighter-s0">"filter=ansible_local"</span></div> </div> </div> </div> 上述命令返回的信息如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">test70 </span><span class="enlighter-g0">|</span><span class="enlighter-text"> SUCCESS =</span><span class="enlighter-g1">></span> <span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_facts"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_local"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"testinfo"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"testmsg"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"msg1"</span><span class="enlighter-text">: </span><span class="enlighter-s0">"This is the first custom test message"</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"msg2"</span><span class="enlighter-text">: </span><span class="enlighter-s0">"This is the second custom test message"</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"changed"</span><span class="enlighter-text">: </span><span class="enlighter-k1">false</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> </div> </div> 之前说过,当setup收集远程主机的”local facts”时,默认会查找远程主机的/etc/ansible/facts.d目录,如果你把”local facts”信息文件放在了其他自定义路径,在使用setup模块时,需要使用”fact_path”参数指定对应的路径,假设,我把”.fact”文件放在了目标主机的”/testdir”目录下,示例命令如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">ansible test70 -m setup -a </span><span class="enlighter-s0">'fact_path=/testdir'</span></div> </div> </div> </div> 其实,setup模块返回的这些信息都存在了对应的变量中,我们可以通过引用变量从而使用对应的信息,但是别急,我们先来了解一下另外一个模块,这个模块叫”debug模块”。 见名知义,debug模块的作用就是帮助我们进行调试的,debug模块可以帮助我们把信息输出到ansible控制台上,以便我们能够定位问题。 那么我们先来看一个debug模块的playbook小示例,如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">---</span></div> </div> <div class=""> <div><span class="enlighter-text">- hosts: test70</span></div> </div> <div class=""> <div><span class="enlighter-text"> remote_user: root</span></div> </div> <div class=""> <div><span class="enlighter-text"> tasks:</span></div> </div> <div class=""> <div><span class="enlighter-text"> - name: touch testfile</span></div> </div> <div class=""> <div><span class="enlighter-text"> file:</span></div> </div> <div class=""> <div><span class="enlighter-text"> path: /testdir/testfile</span></div> </div> <div class=""> <div><span class="enlighter-text"> state: touch</span></div> </div> <div class=""> <div><span class="enlighter-text"> - name: debug demo</span></div> </div> <div class=""> <div><span class="enlighter-text"> debug:</span></div> </div> <div class=""> <div><span class="enlighter-text"> msg: </span><span class="enlighter-k1">this</span><span class="enlighter-text"> is debug info,The test file has been touched</span></div> </div> </div> </div> 上例中,我们先在test70主机上touch了对应的文件,然后,利用debug模块在控制台中输出了我们想要显示的信息,如你所见,debug模块的msg参数可以指定我们想要输出的信息,上述playbook表示touch完对应的文件以后,在ansible控制台中输出我们指定的信息,那么我们运行一下这个测试剧本,看一下效果,如下 <img class=" lazyloaded" src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible151.png" alt="" data-src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible151.png" style=""> 如图所示,自定义信息已经输出在ansible控制台中。 debug模块除了能够使用msg参数输出自定义的信息,还能够直接输出变量中的信息,通过debug模块直接输出变量信息需要使用var参数,示例如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">---</span></div> </div> <div class=""> <div><span class="enlighter-text">- hosts: test70</span></div> </div> <div class=""> <div><span class="enlighter-text"> remote_user: root</span></div> </div> <div class=""> <div><span class="enlighter-text"> vars:</span></div> </div> <div class=""> <div><span class="enlighter-text"> testvar: value </span><span class="enlighter-k1">of</span><span class="enlighter-text"> test variable</span></div> </div> <div class=""> <div><span class="enlighter-text"> tasks:</span></div> </div> <div class=""> <div><span class="enlighter-text"> - name: debug demo</span></div> </div> <div class=""> <div><span class="enlighter-text"> debug:</span></div> </div> <div class=""> <div><span class="enlighter-text"> var: testvar</span></div> </div> </div> </div> 上例虽然连接到了test70远程主机,但是并没有对test70做任何操作,只是在playbook中定义了一个变量,并且通过debug的var参数输出了这个变量的内容,只是为了单纯的演示debug模块的var参数的使用方法,上述playbook的执行效果如下 <img class=" lazyloaded" src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible152.png" alt="" data-src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible152.png" style=""> 变量的名称以及变量的值都输出到了屏幕上,这个功能可以帮助我们调试playbook中变量,让我们了解变量的值是否符合我们的要求。 当然,使用debug的msg参数时也可以引用变量的值,这样我们自定义的信息就更加灵活了,示例如下。 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">---</span></div> </div> <div class=""> <div><span class="enlighter-text">- hosts: test70</span></div> </div> <div class=""> <div><span class="enlighter-text"> remote_user: root</span></div> </div> <div class=""> <div><span class="enlighter-text"> vars:</span></div> </div> <div class=""> <div><span class="enlighter-text"> testvar: testv</span></div> </div> <div class=""> <div><span class="enlighter-text"> tasks:</span></div> </div> <div class=""> <div><span class="enlighter-text"> - name: debug demo</span></div> </div> <div class=""> <div><span class="enlighter-text"> debug:</span></div> </div> <div class=""> <div><span class="enlighter-text"> msg: </span><span class="enlighter-s0">"value of testvar is : {{testvar}}"</span></div> </div> </div> </div> 上例中的msg自定义信息中引用了testvar变量的值 注:上例中msg的值需要使用引号引起,因为{{testvar}}变量前包含”冒号”,如果不使用引号会报语法错误。 上例输出效果如下 <img class=" lazyloaded" src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible153.png" alt="" data-src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible153.png" style=""> setup模块与debug模块了解完了,现在绕回一开始的话题,playbook在运行时默认都会运行”[Gathering Facts]”任务,”[Gathering Facts]”任务会收集远程主机的相关信息,这些信息会保存在对应的变量中,我们在playbook中可以使用这些变量,从而利用这些信息,那么我们怎样在playbook获取到这些变量的值呢?在setup模块的示例中,我们可以通过”ansible_memory_mb”关键字获取远程主机的内存信息,其实,”ansible_memory_mb”就是一个变量名,换句话说就是,我们可以在playbook中直接引用名为”ansible_memory_mb”的变量,从而获取到远程主机的内存信息,示例如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">---</span></div> </div> <div class=""> <div><span class="enlighter-text">- hosts: test70</span></div> </div> <div class=""> <div><span class="enlighter-text"> remote_user: root</span></div> </div> <div class=""> <div><span class="enlighter-text"> tasks:</span></div> </div> <div class=""> <div><span class="enlighter-text"> - name: debug demo</span></div> </div> <div class=""> <div><span class="enlighter-text"> debug:</span></div> </div> <div class=""> <div><span class="enlighter-text"> msg: </span><span class="enlighter-s0">"Remote host memory information: {{ansible_memory_mb}}"</span></div> </div> </div> </div> 上例执行效果如下 <img class=" lazyloaded" src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible154.png" alt="" data-src="https://www.zsythink.net/wp-content/uploads/2018/06/061318_0855_ansible154.png" style=""> 如图所示,我们自定义的信息中包含了远程主机的内存信息,同时被输出了,只是格式上没有手动执行setup模块返回的信息格式易读,手动执行setup模块获取到的内存信息返回如下 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">test70 </span><span class="enlighter-g0">|</span><span class="enlighter-text"> SUCCESS =</span><span class="enlighter-g1">></span> <span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_facts"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"ansible_memory_mb"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"nocache"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1487</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">336</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"real"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1151</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1823</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">672</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"swap"</span><span class="enlighter-text">: </span><span class="enlighter-g1">{</span></div> </div> <div class=""> <div><span class="enlighter-s0">"cached"</span><span class="enlighter-text">: </span><span class="enlighter-n1">0</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"free"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"total"</span><span class="enlighter-text">: </span><span class="enlighter-n1">1023</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"used"</span><span class="enlighter-text">: </span><span class="enlighter-n1">0</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span><span class="enlighter-text">,</span></div> </div> <div class=""> <div><span class="enlighter-s0">"changed"</span><span class="enlighter-text">: </span><span class="enlighter-k1">false</span></div> </div> <div class=""> <div><span class="enlighter-g1">}</span></div> </div> </div> </div> 如上述返回信息所示,”ansible_memory_mb”中其实包含了 “nocache”、”real”、 “swap”三个部分的信息,如果我们只想获得”real”部分的信息,在playbook中引用变量时可以使用如下两种语法。 <div class="enlighter-default enlighter-v-standard enlighter-t-enlighter enlighter-hover enlighter-overflow-scroll"> <div class="enlighter-toolbar"> <div class="enlighter-btn enlighter-btn-raw"></div> <div class="enlighter-btn enlighter-btn-copy"></div> <div class="enlighter-btn enlighter-btn-window"></div> </div> <div class="enlighter"> <div class=""> <div><span class="enlighter-text">语法一示例:</span></div> </div> <div class=""> <div><span class="enlighter-text">debug:</span></div> </div> <div class=""> <div><span class="enlighter-text"> msg: </span><span class="enlighter-s0">"Remote host memory information : {{ansible_memory_mb.real}}"</span></div> </div> <div class=""> <div><span class="enlighter-text">语法二示例:</span></div> </div> <div class=""> <div><span class="enlighter-text">debug:</span></div> </div> <div class=""> <div><span class="enlighter-text"> msg: </span><span class="enlighter-s0">"Remote host memory information : {{ansible_memory_mb['real']}}"</span></div> </div> <div class=""> <div><span class="enlighter-text">上述两种语法前文中已经进行过示例,此处不再赘述。</span></div> </div> </div> </div> 其实,这些远程主机的变量信息不仅仅能够用于输出,我们通常会获取到这些信息以后,对这些信息的值进行判断,判断是否符合我们的要求,然后再执行下一步动作,比如,先获取到远程主机的系统发行版信息,然后判断发行版是centos6还是centos7,如果是centos6,我们就将准备好的A文件拷贝到远程主机中,如果是centos7,我们就将准备好的B文件拷贝到远程主机中,不过由于我们还没有总结条件判断的相关使用方法,所以此处就不进行示例了,这篇文章就先总结到这里,希望能够对你有所帮助。 转载自朱双印日志https://www.zsythink.net/archives/2671 Last modification:May 29, 2024 © Allow specification reprint Like 如果觉得我的文章对你有用,请随意赞赏