[toc]
ansible Facts变量
提示
在yml文件中通过 gather_facts: no 来关闭facts变量
1.Facts变量作用
Facts变量作用：用来采集被控端主机信息，例如cpu、内存、硬盘等
2.使用setup模块来获取被控机相关信息
可以使用setup模块来获取被控机相关信息
ansible devops02 -m setup
以下为执行setup模块输出的单个被控机全部内容，所看到的信息全部都是变量
devops02 | SUCCESS => {
"ansible_facts": {
"ansible_all_ipv4_addresses": [
"10.0.0.61"
],
"ansible_all_ipv6_addresses": [
"fe80::21c:42ff:fed4:711d"
],
"ansible_apparmor": {
"status": "disabled"
},
"ansible_architecture": "x86_64",
"ansible_bios_date": "07/31/2020",
"ansible_bios_version": "16.0.0 (48916)",
"ansible_cmdline": {
"BOOT_IMAGE": "/vmlinuz-3.10.0-1160.el7.x86_64",
"LANG": "en_US.UTF-8",
"net.ifnames": "0",
"quiet": true,
"rd.lvm.lv": "centos/swap",
"rhgb": true,
"ro": true,
"root": "/dev/mapper/centos-root",
"spectre_v2": "retpoline"
},
"ansible_date_time": {
"date": "2021-09-15",
"day": "15",
"epoch": "1631707228",
"hour": "20",
"iso8601": "2021-09-15T12:00:28Z",
"iso8601_basic": "20210915T200028186193",
"iso8601_basic_short": "20210915T200028",
"iso8601_micro": "2021-09-15T12:00:28.186193Z",
"minute": "00",
"month": "09",
"second": "28",
"time": "20:00:28",
"tz": "CST",
"tz_offset": "+0800",
"weekday": "Wednesday",
"weekday_number": "3",
"weeknumber": "37",
"year": "2021"
},
"ansible_default_ipv4": {
"address": "10.0.0.61",
"alias": "eth0",
"broadcast": "10.0.0.255",
"gateway": "10.0.0.1",
"interface": "eth0",
"macaddress": "00:1c:42:d4:71:1d",
"mtu": 1500,
"netmask": "255.255.255.0",
"network": "10.0.0.0",
"type": "ether"
},
"ansible_default_ipv6": {},
"ansible_device_links": {
"ids": {
"dm-0": [
"dm-name-centos-root",
"dm-uuid-LVM-MDpDUifPb6kJUr9fDyJ3m16lXE23SScm2hWpbl8n7I5MqclSkfSLRtLVhwqIZP5B"
],
"dm-1": [
"dm-name-centos-swap",
"dm-uuid-LVM-MDpDUifPb6kJUr9fDyJ3m16lXE23SScmUhtOfTUBKWPnHn8VklaeXfnR6LhzeZUO"
],
"sda": [
"ata-Virtual_HDD_V65X1HR75TK4SFVV1XTD"
],
"sda1": [
"ata-Virtual_HDD_V65X1HR75TK4SFVV1XTD-part1"
],
"sda2": [
"ata-Virtual_HDD_V65X1HR75TK4SFVV1XTD-part2",
"lvm-pv-uuid-Z75Sgb-wZGs-IthV-5Bhm-hn5m-9VeB-24PIOp"
],
"sr0": [
"ata-Virtual_DVD-ROM__1__-_31415B265"
]
},
"labels": {},
"masters": {
"sda2": [
"dm-0",
"dm-1"
]
},
"uuids": {
"dm-0": [
"0fe73be4-eeb3-4995-9d5b-bfc0cc576a83"
],
"dm-1": [
"1c605635-105b-4fc5-aa39-633d867bf1d7"
],
"sda1": [
"544d152e-4e60-41f1-b1f9-d976a1983ac3"
]
}
},
"ansible_devices": {
"dm-0": {
"holders": [],
"host": "",
"links": {
"ids": [
"dm-name-centos-root",
"dm-uuid-LVM-MDpDUifPb6kJUr9fDyJ3m16lXE23SScm2hWpbl8n7I5MqclSkfSLRtLVhwqIZP5B"
],
"labels": [],
"masters": [],
"uuids": [
"0fe73be4-eeb3-4995-9d5b-bfc0cc576a83"
]
},
"model": null,
"partitions": {},
"removable": "0",
"rotational": "0",
"sas_address": null,
"sas_device_handle": null,
"scheduler_mode": "",
"sectors": "98549760",
"sectorsize": "512",
"serial": "V65X1HR75TK4SFVV1XTD",
"size": "46.99 GB",
"support_discard": "4096",
"vendor": null,
"virtual": 1
},
"dm-1": {
"holders": [],
"host": "",
"links": {
"ids": [
"dm-name-centos-swap",
"dm-uuid-LVM-MDpDUifPb6kJUr9fDyJ3m16lXE23SScmUhtOfTUBKWPnHn8VklaeXfnR6LhzeZUO"
],
"labels": [],
"masters": [],
"uuids": [
"1c605635-105b-4fc5-aa39-633d867bf1d7"
]
},
"model": null,
"partitions": {},
"removable": "0",
"rotational": "0",
"sas_address": null,
"sas_device_handle": null,
"scheduler_mode": "",
"sectors": "4194304",
"sectorsize": "512",
"serial": "V65X1HR75TK4SFVV1XTD",
"size": "2.00 GB",
"support_discard": "4096",
"vendor": null,
"virtual": 1
},
"sda": {
"holders": [],
"host": "SATA controller: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 6 port SATA Controller [AHCI mode] (rev 02)",
"links": {
"ids": [
"ata-Virtual_HDD_V65X1HR75TK4SFVV1XTD"
],
"labels": [],
"masters": [],
"uuids": []
},
"model": "Virtual HDD",
"partitions": {
"sda1": {
"holders": [],
"links": {
"ids": [
"ata-Virtual_HDD_V65X1HR75TK4SFVV1XTD-part1"
],
"labels": [],
"masters": [],
"uuids": [
"544d152e-4e60-41f1-b1f9-d976a1983ac3"
]
},
"sectors": "2097152",
"sectorsize": 512,
"size": "1.00 GB",
"start": "2048",
"uuid": "544d152e-4e60-41f1-b1f9-d976a1983ac3"
},
"sda2": {
"holders": [
"centos-root",
"centos-swap"
],
"links": {
"ids": [
"ata-Virtual_HDD_V65X1HR75TK4SFVV1XTD-part2",
"lvm-pv-uuid-Z75Sgb-wZGs-IthV-5Bhm-hn5m-9VeB-24PIOp"
],
"labels": [],
"masters": [
"dm-0",
"dm-1"
],
"uuids": []
},
"sectors": "102758400",
"sectorsize": 512,
"size": "49.00 GB",
"start": "2099200",
"uuid": null
}
},
"removable": "0",
"rotational": "0",
"sas_address": null,
"sas_device_handle": null,
"scheduler_mode": "deadline",
"sectors": "104857600",
"sectorsize": "512",
"serial": "V65X1HR75TK4SFVV1XTD",
"size": "50.00 GB",
"support_discard": "4096",
"vendor": "ATA",
"virtual": 1
},
"sr0": {
"holders": [],
"host": "SATA controller: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 6 port SATA Controller [AHCI mode] (rev 02)",
"links": {
"ids": [
"ata-Virtual_DVD-ROM__1__-_31415B265"
],
"labels": [],
"masters": [],
"uuids": []
},
"model": "Virtual DVD-ROM",
"partitions": {},
"removable": "1",
"rotational": "1",
"sas_address": null,
"sas_device_handle": null,
"scheduler_mode": "deadline",
"sectors": "2097151",
"sectorsize": "512",
"size": "1024.00 MB",
"support_discard": "0",
"vendor": null,
"virtual": 1
}
},
"ansible_distribution": "CentOS",
"ansible_distribution_file_parsed": true,
"ansible_distribution_file_path": "/etc/redhat-release",
"ansible_distribution_file_variety": "RedHat",
"ansible_distribution_major_version": "7",
"ansible_distribution_release": "Core",
"ansible_distribution_version": "7.9",
"ansible_dns": {
"nameservers": [
"223.5.5.5",
"114.114.114.114"
],
"search": [
"localdomain"
]
},
"ansible_domain": "",
"ansible_effective_group_id": 0,
"ansible_effective_user_id": 0,
"ansible_env": {
"HISTTIMEFORMAT": "%Y-%m-%d %H:%M:%S ",
"HOME": "/root",
"LANG": "C",
"LC_ALL": "C",
"LC_NUMERIC": "C",
"LESSOPEN": "||/usr/bin/lesspipe.sh %s",
"LOGNAME": "root",
"LS_COLORS": "rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=01;05;37;41:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=01;36:*.au=01;36:*.flac=01;36:*.mid=01;36:*.midi=01;36:*.mka=01;36:*.mp3=01;36:*.mpc=01;36:*.ogg=01;36:*.ra=01;36:*.wav=01;36:*.axa=01;36:*.oga=01;36:*.spx=01;36:*.xspf=01;36:",
"MAIL": "/var/mail/root",
"PATH": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin",
"PWD": "/root",
"SHELL": "/bin/bash",
"SHLVL": "2",
"SSH_CLIENT": "10.0.0.60 60520 22",
"SSH_CONNECTION": "10.0.0.60 60520 10.0.0.61 22",
"SSH_TTY": "/dev/pts/2",
"TERM": "xterm",
"USER": "root",
"XDG_RUNTIME_DIR": "/run/user/0",
"XDG_SESSION_ID": "7504",
"_": "/usr/bin/python"
},
"ansible_eth0": {
"active": true,
"device": "eth0",
"features": {
"busy_poll": "off [fixed]",
"fcoe_mtu": "off [fixed]",
"generic_receive_offload": "on",
"generic_segmentation_offload": "on",
"highdma": "on [fixed]",
"hw_tc_offload": "off [fixed]",
"l2_fwd_offload": "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 [fixed]",
"rx_checksumming": "off [fixed]",
"rx_fcs": "off [fixed]",
"rx_gro_hw": "off [fixed]",
"rx_udp_tunnel_port_offload": "off [fixed]",
"rx_vlan_filter": "off [fixed]",
"rx_vlan_offload": "off [fixed]",
"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_csum_segmentation": "off [fixed]",
"tx_gre_segmentation": "off [fixed]",
"tx_gso_partial": "off [fixed]",
"tx_gso_robust": "off [fixed]",
"tx_ipip_segmentation": "off [fixed]",
"tx_lockless": "off [fixed]",
"tx_nocache_copy": "off",
"tx_scatter_gather": "on",
"tx_scatter_gather_fraglist": "off [fixed]",
"tx_sctp_segmentation": "off [fixed]",
"tx_sit_segmentation": "off [fixed]",
"tx_tcp6_segmentation": "on",
"tx_tcp_ecn_segmentation": "on",
"tx_tcp_mangleid_segmentation": "off",
"tx_tcp_segmentation": "on",
"tx_udp_tnl_csum_segmentation": "off [fixed]",
"tx_udp_tnl_segmentation": "off [fixed]",
"tx_vlan_offload": "off [fixed]",
"tx_vlan_stag_hw_insert": "off [fixed]",
"udp_fragmentation_offload": "off [fixed]",
"vlan_challenged": "off [fixed]"
},
"hw_timestamp_filters": [],
"ipv4": {
"address": "10.0.0.61",
"broadcast": "10.0.0.255",
"netmask": "255.255.255.0",
"network": "10.0.0.0"
},
"ipv6": [
{
"address": "fe80::21c:42ff:fed4:711d",
"prefix": "64",
"scope": "link"
}
],
"macaddress": "00:1c:42:d4:71:1d",
"module": "virtio_net",
"mtu": 1500,
"pciid": "virtio0",
"promisc": false,
"timestamping": [
"rx_software",
"software"
],
"type": "ether"
},
"ansible_fibre_channel_wwn": [],
"ansible_fips": false,
"ansible_form_factor": "Laptop",
"ansible_fqdn": "devops02",
"ansible_hostname": "devops02",
"ansible_hostnqn": "",
"ansible_interfaces": [
"lo",
"eth0"
],
"ansible_is_chroot": false,
"ansible_iscsi_iqn": "",
"ansible_kernel": "3.10.0-1160.el7.x86_64",
"ansible_kernel_version": "#1 SMP Mon Oct 19 16:18:59 UTC 2020",
"ansible_lo": {
"active": true,
"device": "lo",
"features": {
"busy_poll": "off [fixed]",
"fcoe_mtu": "off [fixed]",
"generic_receive_offload": "on",
"generic_segmentation_offload": "on",
"highdma": "on [fixed]",
"hw_tc_offload": "off [fixed]",
"l2_fwd_offload": "off [fixed]",
"large_receive_offload": "off [fixed]",
"loopback": "on [fixed]",
"netns_local": "on [fixed]",
"ntuple_filters": "off [fixed]",
"receive_hashing": "off [fixed]",
"rx_all": "off [fixed]",
"rx_checksumming": "on [fixed]",
"rx_fcs": "off [fixed]",
"rx_gro_hw": "off [fixed]",
"rx_udp_tunnel_port_offload": "off [fixed]",
"rx_vlan_filter": "off [fixed]",
"rx_vlan_offload": "off [fixed]",
"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 [fixed]",
"tx_checksum_ipv4": "off [fixed]",
"tx_checksum_ipv6": "off [fixed]",
"tx_checksum_sctp": "on [fixed]",
"tx_checksumming": "on",
"tx_fcoe_segmentation": "off [fixed]",
"tx_gre_csum_segmentation": "off [fixed]",
"tx_gre_segmentation": "off [fixed]",
"tx_gso_partial": "off [fixed]",
"tx_gso_robust": "off [fixed]",
"tx_ipip_segmentation": "off [fixed]",
"tx_lockless": "on [fixed]",
"tx_nocache_copy": "off [fixed]",
"tx_scatter_gather": "on [fixed]",
"tx_scatter_gather_fraglist": "on [fixed]",
"tx_sctp_segmentation": "on",
"tx_sit_segmentation": "off [fixed]",
"tx_tcp6_segmentation": "on",
"tx_tcp_ecn_segmentation": "on",
"tx_tcp_mangleid_segmentation": "on",
"tx_tcp_segmentation": "on",
"tx_udp_tnl_csum_segmentation": "off [fixed]",
"tx_udp_tnl_segmentation": "off [fixed]",
"tx_vlan_offload": "off [fixed]",
"tx_vlan_stag_hw_insert": "off [fixed]",
"udp_fragmentation_offload": "on",
"vlan_challenged": "on [fixed]"
},
"hw_timestamp_filters": [],
"ipv4": {
"address": "127.0.0.1",
"broadcast": "",
"netmask": "255.0.0.0",
"network": "127.0.0.0"
},
"ipv6": [
{
"address": "::1",
"prefix": "128",
"scope": "host"
}
],
"mtu": 65536,
"promisc": false,
"timestamping": [
"rx_software",
"software"
],
"type": "loopback"
},
"ansible_local": {},
"ansible_lsb": {},
"ansible_lvm": {
"lvs": {
"root": {
"size_g": "46.99",
"vg": "centos"
},
"swap": {
"size_g": "2.00",
"vg": "centos"
}
},
"pvs": {
"/dev/sda2": {
"free_g": "0.00",
"size_g": "49.00",
"vg": "centos"
}
},
"vgs": {
"centos": {
"free_g": "0.00",
"num_lvs": "2",
"num_pvs": "1",
"size_g": "49.00"
}
}
},
"ansible_machine": "x86_64",
"ansible_machine_id": "0af8c41dd588fb4f8f96a48e78beb674",
"ansible_memfree_mb": 142,
"ansible_memory_mb": {
"nocache": {
"free": 734,
"used": 252
},
"real": {
"free": 142,
"total": 986,
"used": 844
},
"swap": {
"cached": 0,
"free": 0,
"total": 0,
"used": 0
}
},
"ansible_memtotal_mb": 986,
"ansible_mounts": [
{
"block_available": 223727,
"block_size": 4096,
"block_total": 259584,
"block_used": 35857,
"device": "/dev/sda1",
"fstype": "xfs",
"inode_available": 523962,
"inode_total": 524288,
"inode_used": 326,
"mount": "/boot",
"options": "rw,relatime,attr2,inode64,noquota",
"size_available": 916385792,
"size_total": 1063256064,
"uuid": "544d152e-4e60-41f1-b1f9-d976a1983ac3"
},
{
"block_available": 11527392,
"block_size": 4096,
"block_total": 12312705,
"block_used": 785313,
"device": "/dev/mapper/centos-root",
"fstype": "xfs",
"inode_available": 24533001,
"inode_total": 24637440,
"inode_used": 104439,
"mount": "/",
"options": "rw,relatime,attr2,inode64,noquota",
"size_available": 47216197632,
"size_total": 50432839680,
"uuid": "0fe73be4-eeb3-4995-9d5b-bfc0cc576a83"
}
],
"ansible_nodename": "devops02",
"ansible_os_family": "RedHat",
"ansible_pkg_mgr": "yum",
"ansible_proc_cmdline": {
"BOOT_IMAGE": "/vmlinuz-3.10.0-1160.el7.x86_64",
"LANG": "en_US.UTF-8",
"net.ifnames": "0",
"quiet": true,
"rd.lvm.lv": [
"centos/root",
"centos/swap"
],
"rhgb": true,
"ro": true,
"root": "/dev/mapper/centos-root",
"spectre_v2": "retpoline"
},
"ansible_processor": [
"0",
"GenuineIntel",
"Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz",
"1",
"GenuineIntel",
"Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz"
],
"ansible_processor_cores": 2,
"ansible_processor_count": 1,
"ansible_processor_threads_per_core": 1,
"ansible_processor_vcpus": 2,
"ansible_product_name": "Parallels Virtual Platform",
"ansible_product_serial": "Parallels-1D C4 F8 0A 88 D5 4F FB 8F 96 A4 8E 78 BE B6 74",
"ansible_product_uuid": "0AF8C41D-D588-FB4F-8F96-A48E78BEB674",
"ansible_product_version": "None",
"ansible_python": {
"executable": "/usr/bin/python",
"has_sslcontext": true,
"type": "CPython",
"version": {
"major": 2,
"micro": 5,
"minor": 7,
"releaselevel": "final",
"serial": 0
},
"version_info": [
2,
7,
5,
"final",
0
]
},
"ansible_python_version": "2.7.5",
"ansible_real_group_id": 0,
"ansible_real_user_id": 0,
"ansible_selinux": {
"status": "disabled"
},
"ansible_selinux_python_present": true,
"ansible_service_mgr": "systemd",
"ansible_ssh_host_key_ecdsa_public": "AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBCSlkb1znSaz1isLTp/A+1gAUSHuH72VkAUu40IovJZSZ4IbCkSWPunoghZrF9SX29XOfauFUK3hZvdiLXMQwD8=",
"ansible_ssh_host_key_ed25519_public": "AAAAC3NzaC1lZDI1NTE5AAAAIFqE/3imUpdPXOqCkpjQkEAp8vMQOX/Tmoe9HYcVFTYK",
"ansible_ssh_host_key_rsa_public": "AAAAB3NzaC1yc2EAAAADAQABAAABAQDmJK1wwE9wLsL/5uqqtB2RfkSwCQJ4X8uc4+F6fqNMkrvnfsicT2MiIoC4LIRc3MCaVCSYjtJdFb7ExDICIMHuno6/DhnfUCHwQxAJoupE59YgeCZyh1I+pbDy86RKIMybpJpDCMvFp/fPWubrlLX29dXa64Ytmxgu9/gqCKhXIJw9+ZetRJrvDyiv0Fhot8YzaxBwWBSTI+pgAo6o81QO1HkbkENluK9WKrJkWZYnD6FC2VFzjMLHFw+EIf5HJ0Ll+X1YfE9z7Pch2jOoFLKCXa3vz2Bhxt+v71MfXv+j+u8qs7twh5WYaT5ZQoqh39WB1B9FWLg3Fs3xGT12sy/J",
"ansible_swapfree_mb": 0,
"ansible_swaptotal_mb": 0,
"ansible_system": "Linux",
"ansible_system_capabilities": [
"cap_chown",
"cap_dac_override",
"cap_dac_read_search",
"cap_fowner",
"cap_fsetid",
"cap_kill",
"cap_setgid",
"cap_setuid",
"cap_setpcap",
"cap_linux_immutable",
"cap_net_bind_service",
"cap_net_broadcast",
"cap_net_admin",
"cap_net_raw",
"cap_ipc_lock",
"cap_ipc_owner",
"cap_sys_module",
"cap_sys_rawio",
"cap_sys_chroot",
"cap_sys_ptrace",
"cap_sys_pacct",
"cap_sys_admin",
"cap_sys_boot",
"cap_sys_nice",
"cap_sys_resource",
"cap_sys_time",
"cap_sys_tty_config",
"cap_mknod",
"cap_lease",
"cap_audit_write",
"cap_audit_control",
"cap_setfcap",
"cap_mac_override",
"cap_mac_admin",
"cap_syslog",
"35",
"36+ep"
],
"ansible_system_capabilities_enforced": "True",
"ansible_system_vendor": "Parallels Software International Inc.",
"ansible_uptime_seconds": 359912,
"ansible_user_dir": "/root",
"ansible_user_gecos": "root",
"ansible_user_gid": 0,
"ansible_user_id": "root",
"ansible_user_shell": "/bin/bash",
"ansible_user_uid": 0,
"ansible_userspace_architecture": "x86_64",
"ansible_userspace_bits": "64",
"ansible_virtualization_role": "guest",
"ansible_virtualization_type": "parallels",
"discovered_interpreter_python": "/usr/bin/python",
"gather_subset": [
"all"
],
"module_setup": true
},
"changed": false
}
3.使用debug模块来获取被控机相关变量信息
示例1：获取被控机ip地址
方法1：使用命令
$ ansible devops02 -m setup -a "filter=ansible_default_ipv4"
devops02 | SUCCESS => {
"ansible_facts": {
"ansible_default_ipv4": {
"address": "10.0.0.61",
"alias": "eth0",
"broadcast": "10.0.0.255",
"gateway": "10.0.0.1",
"interface": "eth0",
"macaddress": "00:1c:42:d4:71:1d",
"mtu": 1500,
"netmask": "255.255.255.0",
"network": "10.0.0.0",
"type": "ether"
},
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false
}
方法2: 使用playbook
编辑yml文件
$ cat > facts.yml << EOF
- hosts: all
tasks:
- name: output hosts info
debug:
msg: "{{ ansible_default_ipv4.address }}"
EOF
执行yml文件
$ ansible-playbook facts.yml
PLAY [all] *********************************************************************************************************************************************
TASK [Gathering Facts] *********************************************************************************************************************************
ok: [devops02]
ok: [devops03]
ok: [devops01]
TASK [output hosts info] *******************************************************************************************************************************
ok: [devops01] => {
"msg": "10.0.0.60"
}
ok: [devops02] => {
"msg": "10.0.0.61"
}
ok: [devops03] => {
"msg": "10.0.0.62"
}
PLAY RECAP *********************************************************************************************************************************************
devops01 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
devops02 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
devops03 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
4.Facts变量使用示例
4.1 示例1 拷贝文件，不同主机信息不同
典型的例子就是zabbix agent文件 zabbix_agentd.conf 中有 Hostname 参数，默认为 Zabbix server
现在我们批量在被控机上安装zabbix agent，想实现的效果是不同主机，zabbix_agentd.conf 文件中 Hostname 参数为当前主机的主机名
这里我们用一个文件测试即可，编辑一个测试文件
ansible Facts变量中有一个固定变量
ansible_fqdn，这个变量就是获取当前主机的主机名
# 编辑一个文件，模拟zabbix agent文件，这里主要是验证Facts变量
cat > zabbix_agentd.conf << EOF
Hostname={{ ansible_fqdn }}
EOF
编辑yml文件
这里使用的是template模块而不是copy模块，template模块会解析facts变量
cat > facts_zabbix.yml << EOF
- hosts: all
tasks:
- name: copy zabbix agent conf
template:
src:
/root/zabbix_agentd.conf
dest:
/etc
EOF
执行yml文件
$ ansible-playbook facts_zabbix.yml
PLAY [all] *********************************************************************************************************************************************
TASK [Gathering Facts] *********************************************************************************************************************************
ok: [devops03]
ok: [devops02]
ok: [devops01]
TASK [copy zabbix agent conf] **************************************************************************************************************************
changed: [devops02]
changed: [devops03]
changed: [devops01]
PLAY RECAP *********************************************************************************************************************************************
devops01 : ok=2 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
devops02 : ok=2 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
devops03 : ok=2 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
登陆其中一台机器验证
$ cat /etc/zabbix_agentd.conf
Hostname=devops02