Ansible
Ansible - 無法引用模組參數值
這是我的劇本
--- - hosts: mytestserver become: true become_method: sudo gather_facts: true vars: # To get vgname and lvname from ansible_mounts's device mt: "{{ MT }}" #Extravariable disp_pth: "{{ item['device'] }}" disp_tmp: "{{ disp_pth | basename }}" DISP: "{{ disp_tmp.split('-') }}" VGname: "{{ DISP.0 }}" LVname1: "{{ DISP.1 }}" DISPP2: "{{ DISP.3|default('') }}" LVname2: "{{ DISP.1 }}-{{ DISPP2 }}" LVname: "{{ LVname2 if (disp_tmp | regex_search('--')) else LVname1 }}" tasks: - name: Get filesystem values lvol: vg: "{{ VGname }}" lv: "{{ LVname }}" with_items: "{{ ansible_mounts }}" when: item.mount == MT register: myfs - debug: var: myfs當我執行它時：
$ ansible-playbook -i proyects/Inventory/awx_hosts -l mytestserver getlvmfacts.yml -e MT=/DATA我得到了值：
PLAY [mytestserver] ****************************************************************************************************************************************************************************************************************** TASK [Gathering Facts] ****************************************************************************************************************************************************************************************************************** ok: [mytestserver] TASK [Get filesystem values] ************************************************************************************************************************************************************************************************************ ok: [mytestserver] => (item={'block_used': 21620, 'uuid': '7fef92b8-8157-43d1-92b4-525a56fa33f8', 'size_total': 1056858112, 'block_total': 258022, 'mount': '/DATA', 'block_available': 236402, 'size_available': 968302592, 'fstype': 'ext4', 'inode_total': 65536, 'options': 'rw', 'device': '/dev/mapper/vgAPP-DATA', 'inode_used': 11, 'block_size': 4096, 'inode_available': 65525}) TASK [debug] **************************************************************************************************************************************************************************************************************************** ok: [mytestserver] => { "myfs": { "changed": false, "msg": "All items completed", "results": [ { "ansible_loop_var": "item", "changed": false, "item": { "block_available": 414770, "block_size": 4096, "block_total": 516052, "block_used": 101282, "device": "/dev/mapper/vg00-lvol01", "fstype": "ext3", "inode_available": 124211, "inode_total": 131072, "inode_used": 6861, "mount": "/", "options": "rw", "size_available": 1698897920, "size_total": 2113748992, "uuid": "7df9171b-c31f-434f-94c5-344d02775e89" }, "skip_reason": "Conditional result was False", "skipped": true }, { "ansible_loop_var": "item", "changed": false, "item": { "block_available": 1037688, "block_size": 4096, "block_total": 1046016, "block_used": 8328, "device": "/dev/mapper/vgDATA-BASET--DATA1", "fstype": "xfs", "inode_available": 4194301, "inode_total": 4194304, "inode_used": 3, "mount": "/BASET/DATA1", "options": "rw", "size_available": 4250370048, "size_total": 4284481536, "uuid": "91689e9b-552c-4f0e-b0ec-0d3d25154a72" }, "skip_reason": "Conditional result was False", "skipped": true }, { "ansible_loop_var": "item", "changed": false, "failed": false, "invocation": { "module_args": { "active": true, "force": false, "lv": "DATA", "opts": null, "pvs": null, "resizefs": false, "shrink": true, "size": null, "snapshot": null, "state": "present", "thinpool": null, "vg": "vgAPP" } }, "item": { "block_available": 236402, "block_size": 4096, "block_total": 258022, "block_used": 21620, "device": "/dev/mapper/vgAPP-DATA", "fstype": "ext4", "inode_available": 65525, "inode_total": 65536, "inode_used": 11, "mount": "/DATA", "options": "rw", "size_available": 968302592, "size_total": 1056858112, "uuid": "7fef92b8-8157-43d1-92b4-525a56fa33f8" }, "lv": "DATA", "size": 1024.0, "vg": "vgAPP" }, { "ansible_loop_var": "item", "changed": false, "item": { "block_available": 472667, "block_size": 4096, "block_total": 516052, "block_used": 43385, "device": "/dev/mapper/vg00-lvol07", "fstype": "ext3", "inode_available": 131061, "inode_total": 131072, "inode_used": 11, "mount": "/tivoli", "options": "rw", "size_available": 1936044032, "size_total": 2113748992, "uuid": "2310d046-eaad-4419-a94b-197c2c56502c" }, "skip_reason": "Conditional result was False", "skipped": true } ] } }在匹配的掛載點 (/DATA) 的末尾，有三個文件系統參數：
"lv": "DATA", "size": 1024.0, "vg": "vgAPP"問題是：我怎樣才能引用這個參數？
我嘗試過使用myfs.lv但不起作用並且使用了更多方法。我認為這是因為那些不在“項目”內
期望：使用“myfs.lv”之類的東西並獲取“DATA”
希望你能幫忙。提前致謝！
如果您參考調試輸出的結構，您會發現這
myfs.lv顯然是錯誤的，因為頂層的唯一鍵是msg、changed和results。當您在循環中執行任務時，結果將作為列表儲存在
results已註冊變數的鍵下。要訪問該特定結果，您可以執行類似myfs.results.2.lv.但是，像這樣對索引進行硬編碼通常不是您想要的，因此您應該做一些事情來選擇您想要的結果。
(myfs.results | reject('skipped') | list | first).lv將檢索lv第一個未跳過的結果。或者，當然，您可以通過不循環第一個任務來使自己更輕鬆：
tasks: - name: Get filesystem values lvol: vg: "{{ mount_dev_split.0 }}" lv: "{{ mount_dev_split.1 ~ lv_name_suffix }}" vars: mount_dev: "{{ (ansible_facts.mounts | selectattr('mount', 'equalto', MT) | list).0.device }}" mount_dev_split: "{{ (mount_dev | basename).split('-') }}" lv_name_suffix: "{{ ('-' ~ mount_dev_split.3 | default('')) if '--' in mount_dev else '' }}" register: myfs - debug: msg: "{{ myfs.lv }}"