主機名：echo `ansible 193.168.120.101 -m setup -a "filter=ansible_hostname" | grep hostname` | awk -F '[:]' '{print $2}' | sed -e '/"/s/"//g' 

記憶體：echo `ansible 193.168.120.101 -m setup -a "filter=ansible_memtotal_mb" | grep ansible_memtotal_mb` | awk -F '[:]' '{print $2}'

常用資訊

ansible_all_ipv4_addresses：僅顯示ipv4的資訊

ansible_devices：僅顯示磁碟裝置資訊

ansible_distribution：顯示是什麼系統，例：centos,suse等

ansible_distribution_version：僅顯示系統版本

ansible_machine：顯示系統型別，例：32位，還是64位

ansible_eth0：僅顯示eth0的資訊

ansible_hostname：僅顯示主機名

ansible_kernel：僅顯示核心版本

ansible_lvm：顯示lvm相關資訊

ansible_memtotal_mb：顯示系統總記憶體

ansible_memfree_mb：顯示可用系統記憶體

ansible_memory_mb：詳細顯示記憶體情況

ansible_swaptotal_mb：顯示總的swap記憶體

ansible_swapfree_mb：顯示swap記憶體的可用記憶體

ansible_mounts：顯示系統磁碟掛載情況

ansible_processor：顯示cpu個數(具體顯示每個cpu的型號)

ansible_processor_vcpus：顯示cpu個數(只顯示總的個數)

ansible_python_version：顯示python版本

關於palybook當中變數的引用，例如

[[email protected] ansible]# ansible 192.168.156.71 -m setup -a "filter=ansible_eno16777736"
192.168.156.71 | SUCCESS => {
    "ansible_facts": {
        "ansible_eno16777736": {
            "active": true, 
            "device": "eno16777736", 
            "features": {
                "busy_poll": "off [fixed]", 
                "fcoe_mtu": "off [fixed]", 
                "generic_receive_offload": "on", 
                "generic_segmentation_offload": "on", 
                "highdma": "off [fixed]", 
                "large_receive_offload": "off [fixed]", 
                "loopback": "off [fixed]", 
                "netns_local": "off [fixed]", 
                "ntuple_filters": "off [fixed]", 
                "receive_hashing": "off [fixed]", 
                "rx_all": "off", 
                "rx_checksumming": "off", 
                "rx_fcs": "off", 
                "rx_vlan_filter": "on [fixed]", 
                "rx_vlan_offload": "on", 
                "rx_vlan_stag_filter": "off [fixed]", 
                "rx_vlan_stag_hw_parse": "off [fixed]", 
                "scatter_gather": "on", 
                "tcp_segmentation_offload": "on", 
                "tx_checksum_fcoe_crc": "off [fixed]", 
                "tx_checksum_ip_generic": "on", 
                "tx_checksum_ipv4": "off [fixed]", 
                "tx_checksum_ipv6": "off [fixed]", 
                "tx_checksum_sctp": "off [fixed]", 
                "tx_checksumming": "on", 
                "tx_fcoe_segmentation": "off [fixed]", 
                "tx_gre_segmentation": "off [fixed]", 
                "tx_gso_robust": "off [fixed]", 
                "tx_ipip_segmentation": "off [fixed]", 
                "tx_lockless": "off [fixed]", 
                "tx_mpls_segmentation": "off [fixed]", 
                "tx_nocache_copy": "on", 
                "tx_scatter_gather": "on", 
                "tx_scatter_gather_fraglist": "off [fixed]", 
                "tx_sit_segmentation": "off [fixed]", 
                "tx_tcp6_segmentation": "off [fixed]", 
                "tx_tcp_ecn_segmentation": "off [fixed]", 
                "tx_tcp_segmentation": "on", 
                "tx_udp_tnl_segmentation": "off [fixed]", 
                "tx_vlan_offload": "on [fixed]", 
                "tx_vlan_stag_hw_insert": "off [fixed]", 
                "udp_fragmentation_offload": "off [fixed]", 
                "vlan_challenged": "off [fixed]"
            }, 
            "ipv4": {
                "address": "192.168.156.71", 
                "broadcast": "192.168.156.255", 
                "netmask": "255.255.255.0", 
                "network": "192.168.156.0"
            }, 
            "ipv6": [
                {
                    "address": "fe80::20c:29ff:fe56:6ea6", 
                    "prefix": "64", 
                    "scope": "link"
                }
            ], 
            "macaddress": "00:0c:29:56:6e:a6", 
            "module": "e1000", 
            "mtu": 1500, 
            "pciid": "0000:02:01.0", 
            "promisc": false, 
            "speed": 1000, 
            "type": "ether"
        }
    }, 
    "changed": false
}

如果想在playbook取出IPV4的值，可以這樣引用：

[[email protected] ansible]# cat 5.yml 
- hosts: 192.168.156.71
  tasks:
  - debug: 'msg="ipv4 address: {{ansible_eno16777736.ipv4.address}}"'
  - debug: 'msg="macaddress: {{ansible_eno16777736.macaddress}}"'
[[email protected] ansible]# ansible-playbook 5.yml 

PLAY [192.168.156.71] *************************************************************************************************************************************************

TASK [Gathering Facts] ************************************************************************************************************************************************
Saturday 22 September 2018  20:45:38 +0800 (0:00:00.073)       0:00:00.073 **** 
ok: [192.168.156.71]

TASK [debug] **********************************************************************************************************************************************************
Saturday 22 September 2018  20:45:39 +0800 (0:00:00.829)       0:00:00.902 **** 
ok: [192.168.156.71] => {
    "msg": "ipv4 address: 192.168.156.71"
}

TASK [debug] **********************************************************************************************************************************************************
Saturday 22 September 2018  20:45:39 +0800 (0:00:00.029)       0:00:00.932 **** 
ok: [192.168.156.71] => {
    "msg": "macaddress: 00:0c:29:56:6e:a6"
}

PLAY RECAP ************************************************************************************************************************************************************
192.168.156.71             : ok=3    changed=0    unreachable=0    failed=0   

Saturday 22 September 2018  20:45:39 +0800 (0:00:00.027)       0:00:00.960 **** 
=============================================================================== 
Gathering Facts --------------------------------------------------------- 0.83s
debug ------------------------------------------------------------------- 0.03s
debug ------------------------------------------------------------------- 0.03s
[[email protected] ansible]#