我有一个Ansible脚本，它在指定目录中获取磁盘映像，对其进行迭代，然后将其导入RHEV。除了它只导入最后一个磁盘映像之外，我都可以使用它。
图像信息存储在散列变量中，该散列变量是使用从磁盘提取的信息创建的。一切都按预期完成，并且假设我在保存称为“ disk_image_info”的哈希值时做错了什么。这在任务“收集要导入的信息”中。
我还看到Ansible的旧版本听起来与此非常相似，但是我使用的版本中应该包含此修复程序：
ansible 2.6.12
config file = /etc/ansible/ansible.cfg
configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python2.7/site-packages/ansible
executable location = /usr/bin/ansible
python version = 2.7.5 (default, Sep 12 2018, 05:31:16) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]
我的任务如下：
- name: Extract image
unarchive:
src: "{{item}}"
dest: "{{rhev_image_tmp}}"
list_files: true
with_fileglob:
- "{{rhev_image_tmp}}/*.tar.gz"
register: extracted_image
when: directory_created is succeeded
- name: Get the image size
shell: qemu-img info "{{item}}" | grep 'virtual size' | awk '{print $3}'
with_fileglob:
- "{{rhev_image_tmp}}/*.qcow2"
register: disk_size
when: extracted_image is succeeded
- name: Gather file information for import
set_fact:
disk_image_info:
name: "{{item.files[0]}}" # There is always only one file here for my situation
size: 40G #"{{disk_size.results}}" # Will fix hard code later
src: "{{item.dest}}/{{item.files[0]}}" # There is always only one file here for my situation
with_items: "{{extracted_image.results}}"
- name: Load disk image into RHEV
ovirt_disk:
auth: "{{rhevm_auth}}"
name: "{{item.name}}"
interface: virtio
size: "{{item.size}}iB"
format: cow
image_path: "{{item.src}}"
storage_domain: "{{gluster_storage_name}}"
with_items:
- "{{disk_image_info}}"
when: disk_size is succeeded
编辑： 我已经确认我的循环覆盖了任务“收集要导入的文件信息”中的先前条目。因此，进入该任务的项目列表按预期工作。
更新： 我在Clockworknet的帮助下对任务进行了更改，并提出了以下建议，但仍然导致值的覆盖：
- name: Gather file information for import
include: set_image_info.yml
with_items: "{{extracted_image.results}}"
loop_control:
loop_var: disk_image_info
set_image_info.yml：
- name: Set disk_image_info
set_fact:
disk_image_info:
name: "{{disk_image_info.files[0]}}"
size: 40G
src: "{{disk_image_info.dest}}/{{disk_image_info.files[0]}}"
- name: Output disk info iteration
debug:
msg: "{{disk_image_info}}"
此外，作为参考，我从未归档的寄存器中获取以下信息：
changed: [dev1.dds.io] => (item=/var/images/Kali_Disk1.qcow2.tar.gz) => {
"changed": true,
"dest": "/var/images",
"extract_results": {
"cmd": [
"/bin/gtar",
"--extract",
"-C",
"/var/images",
"-z",
"-f",
"/root/.ansible/tmp/ansible-tmp-1549567288.17-253158870541109/source"
],
"err": "/bin/gtar: Ignoring unknown extended header keyword `LIBARCHIVE.creationtime'\n/bin/gtar: Ignoring unknown extended header keyword `SCHILY.dev'\n/bin/gtar: Ignoring unknown extended header keyword `SCHILY.ino'\n/bin/gtar: Ignoring unknown extended header keyword `SCHILY.nlink'\n",
"out": "",
"rc": 0
},
"files": [
"Kali_Disk1.qcow2"
],
"gid": 0,
"group": "root",
"handler": "TgzArchive",
"invocation": {
"module_args": {
"attributes": null,
"backup": null,
"content": null,
"creates": null,
"delimiter": null,
"dest": "/var/images",
"directory_mode": null,
"exclude": [],
"extra_opts": [],
"follow": false,
"force": null,
"group": null,
"keep_newer": false,
"list_files": true,
"mode": null,
"owner": null,
"regexp": null,
"remote_src": false,
"selevel": null,
"serole": null,
"setype": null,
"seuser": null,
"src": "/root/.ansible/tmp/ansible-tmp-1549567288.17-253158870541109/source",
"unsafe_writes": null,
"validate_certs": true
}
},
"item": "/var/images/Kali_Disk1.qcow2.tar.gz",
"mode": "0755",
"owner": "root",
"secontext": "unconfined_u:object_r:var_t:s0",
"size": 64,
"src": "/root/.ansible/tmp/ansible-tmp-1549567288.17-253158870541109/source",
"state": "directory",
"uid": 0
}
答案 0 :(得分：0)
这实际上不是答案，只是比注释部分更容易格式化。从顶部开始，您有：
- name: Extract image
unarchive:
src: "{{item}}"
dest: "{{rhev_image_tmp}}"
list_files: true
with_fileglob:
- "{{rhev_image_tmp}}/*.tar.gz"
register: extracted_image
when: directory_created is succeeded
因此，此任务将查找位于"{{rhev_image_tmp}}/*.tar.gz"的所有文件。然后，对于找到的每个文件，它将运行unarchive模块，并将该模块的输出存储在extracted_image中。这意味着当您移至后续任务时，extracted_image仅包含循环中最后次的输出。
当您到达- name: Gather file information for import时，您尝试循环浏览with_items: "{{extracted_image.results}}"，但是您在extracted_image发布的输出中显示它不包含“结果”键-所以我不明白那里应该发生什么。
您对- name: Get the image size所做的操作也完全相同，因此您最终得到的'disk_size'再次仅包含循环中最后一次的输出。
下面是如何处理注册循环输出的示例：
---
- name: Loop through the tarballs
include: extract_image.yml
with_fileglob: "{{rhev_image_tmp}}/*.tar.gz"
- name: Show the registered data
debug:
var: extracted_images
extract_image.yml
---
- unarchive:
src: "{{item}}"
dest: "{{rhev_image_tmp}}"
list_files: true
register: image_data
- set_fact:
extracted_images: "{{ extracted_images | default({}) | combine( {item | basename: image_data} ) ) }}"
因此，您将获得字典的字典，其中包含循环每次通过的输出。您还需要在其他循环中执行此操作。
您仍然需要弄清楚如何构建“ disk_image_info”字典。
我建议先处理两个循环，然后再使用调试模块查看两个变量的内容。一旦了解了结构，就可以弄清楚如何提取相关数据以创建“ disk_image_info”。