facts 指的是 ansible_facts 变量，ansible 中使用 setup 模块来获取，包含系统的大部分基础硬件信息，
[root@10_1_162_39 host_vars]# ll total 16 -rw-r--r-- 1 root root 44 May 5 14:55 hosts -rw-r--r-- 1 root root 134 May 5 09:40 test1.yaml -rw-r--r-- 1 root root 200 May 5 16:56 test.playbook
获取所有变量的命令如下，其中的变量可以在 playbook 入口 yaml 文件中使用，本文在 test.playbook 中引用
[root@10_1_162_39 host_vars]# ansible 10.1.162.18 -m setup -i hosts 10.1.162.18 | SUCCESS => { "ansible_facts": { "ansible_all_ipv4_addresses": [ "192.168.238.129" ], "ansible_all_ipv6_addresses": [ "fe80::20c:29ff:fe21:bd17" ], "ansible_architecture": "x86_64", "ansible_bios_date": "07/02/2015", "ansible_bios_version": "6.00", "ansible_cmdline": { "BOOT_IMAGE": "vmlinuz0", "initrd": "initrd0.img", "liveimg": true, "nodiskmount": true, "nolvmmount": true, "quiet": true, "rd.dm": "0", "rd.luks": "0", "rd.md": "0", "rhgb": true, "ro": true, "root": "live:CDLABEL=CentOS-6.8-x86_64-LiveCD", "rootfstype": "auto" }, "ansible_date_time": { "date": "2017-05-05", "day": "05", "epoch": "1494018155", "hour": "17", "iso8601": "2017-05-05T21:02:35Z", "iso8601_basic": "20170505T170235836807", "iso8601_basic_short": "20170505T170235", "iso8601_micro": "2017-05-05T21:02:35.836916Z", "minute": "02", "month": "05", "second": "35", "time": "17:02:35", "tz": "EDT", "tz_offset": "-0400", "weekday": "Friday", "weekday_number": "5", "weeknumber": "18", "year": "2017" }, "ansible_default_ipv4": { "address": "192.168.238.129", "alias": "eth0", "broadcast": "192.168.238.255", "gateway": "192.168.238.2", "interface": "eth0", "macaddress": "00:0c:29:21:bd:17", "mtu": 1500, "netmask": "255.255.255.0", "network": "192.168.238.0", "type": "ether" }, "ansible_default_ipv6": {}, "ansible_devices": { "sda": { "holders": [], "host": "SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 01)", "model": "VMware Virtual S", "partitions": { "sda1": { "holders": [], "sectors": "41929587", "sectorsize": 512, "size": "19.99 GB", "start": "63", "uuid": "e211add0-38ea-4214-9c56-b193e6749d4f" } }, "removable": "0", "rotational": "1", "sas_address": null, "sas_device_handle": null, "scheduler_mode": "cfq", "sectors": "41943040", "sectorsize": "512", "size": "20.00 GB", "support_discard": "0", "vendor": "VMware," }, "sr0": { "holders": [], "host": "IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)", "model": "VMware IDE CDR10", "partitions": {}, "removable": "1", "rotational": "1", "sas_address": null, "sas_device_handle": null, "scheduler_mode": "cfq", "sectors": "1437696", "sectorsize": "2048", "size": "2.74 GB", "support_discard": "0", "vendor": "NECVMWar" } }, "ansible_distribution": "CentOS", "ansible_distribution_major_version": "6", "ansible_distribution_release": "Final", "ansible_distribution_version": "6.8", "ansible_dns": { "domain": "localdomain", "nameservers": [ "192.168.238.2" ], "search": [ "localdomain", "centos" ] }, "ansible_domain": "centos", "ansible_env": { "G_BROKEN_FILENAMES": "1", "HOME": "/root", "LANG": "en_US.UTF-8", "LESSOPEN": "||/usr/bin/lesspipe.sh %s", "LOGNAME": "root", "MAIL": "/var/mail/root", "PATH": "/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin", "PWD": "/root", "SELINUX_LEVEL_REQUESTED": "", "SELINUX_ROLE_REQUESTED": "", "SELINUX_USE_CURRENT_RANGE": "", "SHELL": "/bin/bash", "SHLVL": "2", "SSH_ASKPASS": "/usr/libexec/openssh/gnome-ssh-askpass", "SSH_CLIENT": "10.1.162.39 39522 22", "SSH_CONNECTION": "10.1.162.39 39522 192.168.238.129 22", "SSH_TTY": "/dev/pts/5", "TERM": "linux", "USER": "root", "_": "/usr/bin/python" }, "ansible_eth0": { "active": true, "device": "eth0", "features": { "fcoe_mtu": "off [fixed]", "generic_receive_offload": "on", "generic_segmentation_offload": "off [requested 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_checksumming": "off [fixed]", "rx_vlan_filter": "off [fixed]", "rx_vlan_offload": "off [fixed]", "scatter_gather": "off", "tcp_segmentation_offload": "off", "tx_checksum_fcoe_crc": "off [fixed]", "tx_checksum_ip_generic": "off [fixed]", "tx_checksum_ipv4": "off [fixed]", "tx_checksum_ipv6": "off [fixed]", "tx_checksum_sctp": "off [fixed]", "tx_checksum_unneeded": "off [fixed]", "tx_checksumming": "off", "tx_fcoe_segmentation": "off [fixed]", "tx_gre_segmentation": "off [fixed]", "tx_gso_robust": "off [fixed]", "tx_lockless": "off [fixed]", "tx_scatter_gather": "off [fixed]", "tx_scatter_gather_fraglist": "off [fixed]", "tx_tcp6_segmentation": "off [fixed]", "tx_tcp_ecn_segmentation": "off [fixed]", "tx_tcp_segmentation": "off [fixed]", "tx_udp_tnl_segmentation": "off [fixed]", "tx_vlan_offload": "off [fixed]", "udp_fragmentation_offload": "off [fixed]", "vlan_challenged": "off [fixed]" }, "ipv4": { "address": "192.168.238.129", "broadcast": "192.168.238.255", "netmask": "255.255.255.0", "network": "192.168.238.0" }, "ipv6": [ { "address": "fe80::20c:29ff:fe21:bd17", "prefix": "64", "scope": "link" } ], "macaddress": "00:0c:29:21:bd:17", "module": "pcnet32", "mtu": 1500, "pciid": "0000:02:01.0", "promisc": false, "type": "ether" }, "ansible_fips": false, "ansible_form_factor": "Other", "ansible_fqdn": "livecd.centos", "ansible_gather_subset": [ "hardware", "network", "virtual" ], "ansible_hostname": "livecd", "ansible_interfaces": [ "lo", "eth0" ], "ansible_kernel": "2.6.32-642.el6.x86_64", "ansible_lo": { "active": true, "device": "lo", "features": { "fcoe_mtu": "off [fixed]", "generic_receive_offload": "on", "generic_segmentation_offload": "on", "highdma": "on [fixed]", "large_receive_offload": "off [fixed]", "loopback": "on [fixed]", "netns_local": "on [fixed]", "ntuple_filters": "off [fixed]", "receive_hashing": "off [fixed]", "rx_checksumming": "on [fixed]", "rx_vlan_filter": "off [fixed]", "rx_vlan_offload": "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": "off [fixed]", "tx_checksum_unneeded": "off [fixed]", "tx_checksumming": "on", "tx_fcoe_segmentation": "off [fixed]", "tx_gre_segmentation": "off [fixed]", "tx_gso_robust": "off [fixed]", "tx_lockless": "on [fixed]", "tx_scatter_gather": "on [fixed]", "tx_scatter_gather_fraglist": "on [fixed]", "tx_tcp6_segmentation": "on", "tx_tcp_ecn_segmentation": "on", "tx_tcp_segmentation": "on", "tx_udp_tnl_segmentation": "off [fixed]", "tx_vlan_offload": "off [fixed]", "udp_fragmentation_offload": "on", "vlan_challenged": "on [fixed]" }, "ipv4": { "address": "127.0.0.1", "broadcast": "host", "netmask": "255.0.0.0", "network": "127.0.0.0" }, "ipv6": [ { "address": "::1", "prefix": "128", "scope": "host" } ], "mtu": 65536, "promisc": false, "type": "loopback" }, "ansible_lvm": { "lvs": {}, "vgs": {} }, "ansible_machine": "x86_64", "ansible_machine_id": "fbd601d6c3cc5bbb8e9b21b300000010", "ansible_memfree_mb": 72, "ansible_memory_mb": { "nocache": { "free": 682, "used": 314 }, "real": { "free": 72, "total": 996, "used": 924 }, "swap": { "cached": 0, "free": 0, "total": 0, "used": 0 } }, "ansible_memtotal_mb": 996, "ansible_mounts": [ { "device": "/dev/mapper/live-rw", "fstype": "ext4", "mount": "/", "options": "rw,noatime", "size_available": 2155237376, "size_total": 4093313024, "uuid": "N/A" }, { "device": "/dev/sr0", "fstype": "iso9660", "mount": "/mnt/live", "options": "ro", "size_available": 0, "size_total": 735934464, "uuid": "N/A" }, { "device": "/tmp", "fstype": "tmpfs", "mount": "/tmp", "options": "rw,rootcontext="system_u:object_r:tmp_t:s0"", "size_available": 521654272, "size_total": 522248192, "uuid": "N/A" } ], "ansible_nodename": "livecd.centos", "ansible_os_family": "RedHat", "ansible_pkg_mgr": "yum", "ansible_processor": [ "GenuineIntel", "Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz" ], "ansible_processor_cores": 1, "ansible_processor_count": 1, "ansible_processor_threads_per_core": 1, "ansible_processor_vcpus": 1, "ansible_product_name": "VMware Virtual Platform", "ansible_product_serial": "VMware-56 4d e4 27 2b 45 f8 74-e5 17 57 47 ab 21 bd 17", "ansible_product_uuid": "564DE427-2B45-F874-E517-5747AB21BD17", "ansible_product_version": "None", "ansible_python": { "executable": "/usr/bin/python", "has_sslcontext": false, "type": "CPython", "version": { "major": 2, "micro": 6, "minor": 6, "releaselevel": "final", "serial": 0 }, "version_info": [ 2, 6, 6, "final", 0 ] }, "ansible_python_version": "2.6.6", "ansible_selinux": { "config_mode": "enforcing", "mode": "enforcing", "policyvers": 24, "status": "enabled", "type": "targeted" }, "ansible_service_mgr": "upstart", "ansible_ssh_host_key_dsa_public": "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", "ansible_ssh_host_key_rsa_public": "AAAAB3NzaC1yc2EAAAABIwAAAQAQEFAqY4Aut3/NGPYJaqMVeVociBafC0Qbc29IKKSy6i0UodrGE3UXAWf/gmNSktkjqZ8UHBiXJAzCAMwyonlm/l4M+ZwYoJ8VjtUZtz/9cGXHS+P2qPID8mMyxvFMn9xd0w623GkSJfqMg0wW9Lwywd4hceq5qp5n8L1tDDCpNxbbAifKXoZmWFejhXU9qzJ8L4Vw/a+XzCbfiTmDifzL7MX2Yt/dy0SWeKbWnjjfDCDtFDtMYh/Uvin/J5FI7JEcSxP/1gjZZO7ivqhQpWNqkqkLgZJ/X2YVODsNh0GaTYfEbOrCKKHbstc0ypppE0bNe91HTSZfvkzkKwV6jzt2T3u8Q==", "ansible_swapfree_mb": 0, "ansible_swaptotal_mb": 0, "ansible_system": "Linux", "ansible_system_capabilities": [], "ansible_system_capabilities_enforced": "False", "ansible_system_vendor": "VMware, Inc.", "ansible_uptime_seconds": 92488, "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": "VMware", "module_setup": true }, "changed": false } [root@10_1_162_39 host_vars]#
引用变量
[root@10_1_162_39 host_vars]# cat test.playbook --- - hosts: "{{ host }}" gather_facts: true remote_user: root tasks: - shell: ifconfig register: output - debug: var=output.stdout - debug: msg=" ansible_system={{ ansible_system }}" - debug: msg={{ ansible_selinux }}
运行 playbook 命令
[root@10_1_162_39 host_vars]# ansible-playbook test.playbook -i hosts -e host=10.1.162.18 PLAY [10.1.162.18] ************************************************************* TASK [setup] ******************************************************************* ok: [10.1.162.18] TASK [command] ***************************************************************** changed: [10.1.162.18] TASK [debug] ******************************************************************* ok: [10.1.162.18] => { "output.stdout": "eth0 Link encap:Ethernet HWaddr 00:0C:29:21:BD:17 inet addr:192.168.238.129 Bcast:192.168.238.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe21:bd17/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:309551 errors:0 dropped:0 overruns:0 frame:0 TX packets:125322 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:368636410 (351.5 MiB) TX bytes:7103077 (6.7 MiB) Interrupt:19 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:480 (480.0 b) TX bytes:480 (480.0 b)" } TASK [debug] ******************************************************************* ok: [10.1.162.18] => { "msg": " ansible_system=Linux" } TASK [debug] ******************************************************************* ok: [10.1.162.18] => { "msg": { "config_mode": "enforcing", "mode": "enforcing", "policyvers": 24, "status": "enabled", "type": "targeted" } } PLAY RECAP ********************************************************************* 10.1.162.18 : ok=5 changed=1 unreachable=0 failed=0 [root@10_1_162_39 host_vars]#