linux - GCE/安塞波 : How to create a filesystem on a new disk of a GCE instance with ansible

Question

我需要使用 Ansible 向现有 GCE 实例添加额外的磁盘

磁盘是用gce_pd模块创建的:

- name : Add new disk
  local_action:
    module: gce_pd
    instance_name: "{{ ansible_host }}"
    project_id: "{{ project_id }}"
    service_account_email: "{{ service_account_email }}"
    credentials_file: "{{ credentials_file }}"
    zone: "{{ my_zone }}"
    size_gb: 5
    mode: READ_WRITE
    name: "{{ ansible_host }}-data-disk"
  register: gce_pd
  tags:
    - add_disk

此任务成功。

然后我尝试在新磁盘上创建一个 ext4 文件系统:

#============================================================
- name : Create filesystem {{ google_disk_name }}
  filesystem:
    fstype: ext4
    # TODO : improve this
    dev: /dev/sdb
    opts: "-F -E lazy_itable_init=0,lazy_journal_init=0,discard -L {{ volume_label }} /dev/disk/by-id/{{ google_disk_name }}"
    force: yes
  become: true
  tags:
    - add_disk
    - format_disk

此任务失败:

FAILED! => {"changed": false, "err": "mke2fs 1.42.12 (29-Aug-2014)\nmkfs.ext4: invalid blocks '/dev/sdb' on device '/dev/disk/by-id/google-my-instance-data-disk'\n", "failed": true, "msg": "Creating filesystem ext4 on device '/dev/sdb' failed", "rc": 1}

我做错了什么？文件系统的选项与 GCE 文档中推荐的相同 https://cloud.google.com/compute/docs/disks/add-persistent-disk

如果我手动执行这个命令，文件系统的创建就成功了!

mkfs.ext4 -F -E lazy_itable_init=0,lazy_journal_init=0,discard/dev/disk/by-id/google-my-instance-data-disk

解决方法是使用命令模块来运行 mkfs.ext4 而不是使用文件系统模块，但我想了解我在使用该模块时出了什么问题。

任何帮助将不胜感激

Answer 1

感谢Konstatin Suvorov谁在 opts: 参数中发现了我的错误:

/dev/disk/by-id/{{ google_disk_name }} 与 dev: 参数是多余的

所以固定任务是:

#============================================================
- name : Format disk {{ google_disk_name }}
  filesystem:
    fstype: ext4
    # TODO : improve this
    dev: /dev/sdb
    opts: "-F -E lazy_itable_init=0,lazy_journal_init=0,discard -L {{ volume_label }}"
    # TODO : to be discussed, useful for tests
    force: yes
  become: true
  tags:
    - add_disk
    - format_disk