New module to create/update/delete/attach multiple disks #936

abikouo · 2022-08-05T14:58:38Z

Testing how to speed disk creation/attachment in order to tackle #847
I just created a new module azure_rm_managedmultipledisk which will be merged into azure_rm_multiple_manageddisks or exists as another module

ISSUE TYPE

New module Pull Request

dleens2 · 2022-08-29T18:31:02Z

Hi @abikouo,

I've been testing the azure_rm_managedmultipledisk module and have been encountering an issue where the disks are being created, but aren't being attached to VMs. I'm not sure if it's how I'm iterating through the module or not, but I'm hoping you may have a recommendation to get past this. I've got a couple snippets from the ansible task outputs and the module usage.

Module usage within role:

  - name: Create, tag, and attach additonal volumes on Azure
    when: not mount_exists[index] | bool
    azure_rm_managedmultipledisk:
      managed_disks:
        - client_id: "{{ lookup('env','AZURE_CLIENT_ID') | default(omit, true)  }}"
          secret: "{{ lookup('env','AZURE_SECRET') | default(omit, true)  }}"
          subscription_id: "{{ lookup('env','AZURE_SUBSCRIPTION_ID') | default(omit, true)  }}"
          tenant: "{{ lookup('env','AZURE_TENANT') | default(omit, true)  }}"
          name: "{{ azure_vm_name }}_{{ item.key }}"
          location: "{{ azure_location }}"
          resource_group: "{{ azure_resource_group }}"
          disk_size_gb: "{{ item.value.size }}"
          storage_account_type: "{{ item.value.azure_disk_type | default(azure_disk_type) }}"
          attach_caching: "{{ 'read_write' if (item.value.size | int < 4095) else '' }}"
          zone: "{{ azure_disk_zone | default(omit, true) }}"
      managed_by_extended:
        - name: "{{ azure_vm_name }}"
          resource_group: "{{azure_resource_group}}"
      tags:
        Name:  "{{ azure_vm_name }}_{{ item.key }}"
        Hostname: "{{ ansible_hostname }}"
        MountPoint: "{{ item.value.mount_point }}"
        Instance: "{{ azure_vm_name }}"
    register: azure_volume
    delegate_to: "{{ task_delegation | default(omit, true) }}"
    async: 1000
    poll: 0
    loop: "{{ disk_preset_list }}"
    loop_control:
      index_var: index

  - name: Wait for Azure disk creation task finished
    when: item.skipped is not defined and item.finished == false
    async_status:
      jid: "{{ item.ansible_job_id }}"
    delegate_to: "{{ task_delegation | default(omit, true) }}"
    register: volume_create_status
    until: volume_create_status.finished
    retries: 100
    delay: 10
    loop: "{{ azure_volume.results }}"

Task outputs:

TASK [disk-management : Create, tag, and attach additonal volumes on Azure] ****
changed: [172.16.0.5 -> localhost] => (item={'key': 'test_mnt1', 'value': {'mount_point': '/testmnt1', 'size': 50}})

TASK [disk-management : Wait for Azure disk creation task finished] ************
changed: [172.16.0.5 -> localhost] => (item={'failed': 0, 'started': 1, 'finished': 0, 'ansible_job_id': '765407197011.1156559', 'results_file': '/home/cloud-user/.ansible_async/765407197011.1156559', 'changed': True, 'item': {'key': 'test_mnt1', 'value': {'mount_point': '/testmnt1', 'size': 50}}, 'ansible_loop_var': 'item', 'index': 0, 'ansible_index_var': 'index'})

Corresponding results file:

{"changed": true, "state": [{"id": "/subscriptions/xxxxxxxxx/resourceGroups/test-deonte-azure-gov/providers/Microsoft.Compute/disks/test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91_test_mnt1", "name": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91_test_mnt1", "location": "usgovvirginia", "tags": {"Name": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91_test_mnt1", "Hostname": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91", "MountPoint": "/testmnt1", "Instance": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91"}, "create_option": "empty", "source_uri": null, "disk_size_gb": 50, "os_type": null, "storage_account_type": "Standard_LRS", "managed_by": null, "max_shares": null, "managed_by_extended": null, "zone": ""}], "invocation": {"module_args": {"managed_disks": [{"name": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91_test_mnt1", "location": "usgovvirginia", "resource_group": "test-deonte-azure-gov", "disk_size_gb": 50, "storage_account_type": "Standard_LRS", "attach_caching": "read_write", "create_option": null, "storage_account_id": null, "source_uri": null, "os_type": null, "zone": null, "lun": null, "max_shares": null}], "managed_by_extended": [{"name": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91", "resource_group": "test-deonte-azure-gov"}], "tags": {"Name": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91_test_mnt1", "Hostname": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91", "MountPoint": "/testmnt1", "Instance": "test-deonte-azure-gov-testmnt1-cebdf5dfee4d6c91"}, "auth_source": "auto", "cloud_environment": "AzureCloud", "api_profile": "latest", "append_tags": true, "state": "present", "profile": null, "subscription_id": null, "client_id": null, "secret": null, "tenant": null, "ad_user": null, "password": null, "cert_validation_mode": null, "adfs_authority_url": null, "log_mode": null, "log_path": null}}}

If you have any advice on my usage of the module I'd appreciate it.

Thanks,
Deonte

abikouo · 2022-09-01T10:51:22Z

Hi @dleens2

Thanks for the feedback!! I dont know why it is not attaching the disk to the vm. I have done something similar which is working, feel free to review and see on what it differs. Here is the playbook

- hosts: localhost
  gather_facts: no

  vars:
    azure_resource_group: "my-rg-01"

  tasks:
    - name: Manage multiple disks
      azure.azcollection.azure_rm_managedmultipledisk:
        managed_disks: "{{ item.disks }}"
        managed_by_extended:
          - "{{ item.virtual_machine }}"
      register: azure_disks
      async: 1000
      poll: 0
      with_items:
        - virtual_machine:
            name: "testvm-1"
            resource_group: "{{ azure_resource_group }}"
          disks:
            - disk_size_gb: 1
              name: "disk1-xa"
              resource_group: "{{ azure_resource_group }}"
            - disk_size_gb: 1
              name: "disk1-xb"
              resource_group: "{{ azure_resource_group }}"

        - virtual_machine:
            name: "testvm-2"
            resource_group: "{{ azure_resource_group }}"
          disks:
            - disk_size_gb: 1
              name: "disk2-xa"
              resource_group: "{{ azure_resource_group }}"
            - disk_size_gb: 1
              name: "disk2-xb"
              resource_group: "{{ azure_resource_group }}"

        - virtual_machine:
            name: "testvm-3"
            resource_group: "{{ azure_resource_group }}"
          disks:
            - disk_size_gb: 1
              name: "disk3-xa"
              resource_group: "{{ azure_resource_group }}"
            - disk_size_gb: 1
              name: "disk3-xb"
              resource_group: "{{ azure_resource_group }}"

    - name: Wait for disks to be created and attached
      async_status:
        jid: "{{ item.ansible_job_id }}"
      register: attach_disk
      until: attach_disk.finished
      retries: 100
      delay: 5
      loop: "{{ azure_disks.results }}"

    - name: Get disk info
      azure_rm_manageddisk_info:
        name: "{{ item }}"
        resource_group: "{{ azure_resource_group }}"
      register: disk_info
      with_items:
        - "disk1-xa"
        - "disk1-xb"
        - "disk2-xa"
        - "disk2-xb"
        - "disk3-xa"
        - "disk3-xb"

    - debug: var=disk_info

dleens2 · 2022-09-07T15:08:35Z

Hi @abikouo,

Thanks for sending over the example code. I found that the issue was with the disk/VM zone mismatch. I was able to get the disks to attach using your example and our disk-management role after fixing that issue. I'm still having an issue with disk attachments when there are more than 2 disks being attached per VM.

When attempting to attach 3 disks per VM with your example none of the disks will attach. With our disk-management role two of the disks will attach to each VM and the third one will not. This behavior is happening regardless of scale, only 3 VMs with your example and 100 VMs with our role. Are you seeing this same behavior on your side?

Thanks,
Deonte

abikouo · 2022-09-09T09:54:04Z

Hi @abikouo,

Thanks for sending over the example code. I found that the issue was with the disk/VM zone mismatch. I was able to get the disks to attach using your example and our disk-management role after fixing that issue. I'm still having an issue with disk attachments when there are more than 2 disks being attached per VM.

When attempting to attach 3 disks per VM with your example none of the disks will attach. With our disk-management role two of the disks will attach to each VM and the third one will not. This behavior is happening regardless of scale, only 3 VMs with your example and 100 VMs with our role. Are you seeing this same behavior on your side?

Thanks, Deonte

@dleens2 I fixed the issue where some disks are created but not attached, the process was quietly failing, and now this will raise an issue. I reproduced the issue with some disks created but not attached, it is due to the max capacity reached (The maximum number of data disks allowed to be attached to a VM of size Standard D4S v3 is 8).
You can rerun the playbook below and we will see the root cause for your use case.

I have updated the module azure_rm_managed_disk_info for debugging purpose, it will allow to validate right after the async calls if disks are attached to the virtual machines

Playbook

- hosts: localhost
  gather_facts: no

  vars:
    azure_resource_group: "my-rg-01"
    number_disk: 10
    number_vm: 3

  tasks:
    - set_fact:
        managed_disk_config: "{{ lookup('template', 'disk_vm_config.j2') | from_yaml }}"
        managed_disks: []

    - set_fact:
        managed_disks: "{{ managed_disks + [{'name': item.name, 'resource_group': item.resource_group}] }}"
      with_items: "{{ managed_disk_config | map(attribute='disks') | flatten | list }}"
      no_log: true

    - name: Create non attached disk
      azure_rm_manageddisk:
        resource_group: "{{ azure_resource_group }}"
        name: lrs-unmanaged-disk-01
        storage_account_type: Standard_LRS
        os_type: linux
        disk_size_gb: 1

    - name: Manage multiple disks
      azure.azcollection.azure_rm_managedmultipledisk:
        managed_disks: "{{ item.disks }}"
        managed_by_extended:
          - "{{ item.virtual_machine }}"
        state: absent
      register: azure_disks
      async: 1000
      poll: 0
      with_items: "{{ managed_disk_config }}"

    - name: Wait for disks to be created and attached
      async_status:
        jid: "{{ item.ansible_job_id }}"
      register: attach_disk
      until: attach_disk.finished
      retries: 100
      delay: 5
      loop: "{{ azure_disks.results }}"

    - name: Get disk info
      azure_rm_manageddisk_info:
        managed_disks: "{{ managed_disks }}"
      register: disk_info

    - debug:
        msg: >-
          total_disks [{{ managed_disks | default([]) | length }}]
          unmanaged_disk [{{ disk_info.ansible_info.azure_managed_disk | selectattr('managed_by', 'equalto', none) | list | length }}]
          managed_disk [{{ disk_info.ansible_info.azure_managed_disk | rejectattr('managed_by', 'equalto', none) | list | length }}]

disk_vm_config.j2

{% for i in range(number_vm) %}
- disks:
{% for d in range(number_disk) %}
    - disk_size_gb: 1
      name: "stddisk-{{ i + 1 }}-{{ d }}"
      resource_group: "{{ azure_resource_group }}"
{% endfor %}
  virtual_machine:
    name: "testvm-{{ i + 1 }}"
    resource_group: "{{ azure_resource_group }}"
{% endfor %}

Please update the module version and try to attach disk again using your role or the playbook above and keep me informed
Thanks

dleens2 · 2022-09-12T10:44:20Z

Hi @abikouo,

Thank you adding this debugging feature to the module. I updated the modules and ran it again with our disk-management role and found that the issue I was running into was with the max disks per VM size, as you suggested. After changing the sizes of my test VMs the azure_rm_managedmultipledisk module worked well. Disks were created and attached quickly.

Thanks

ohthehugemanatee · 2022-09-29T13:45:04Z

I think this is not a complete solution to #847 . To my reading, this PR offers:

But #847 is asking for:

I posted in the Issue thread for clarification.

abikouo · 2022-10-04T10:28:58Z

I think this is not a complete solution to #847 . To my reading, this PR offers:

But #847 is asking for:

I posted in the Issue thread for clarification.

@ohthehugemanatee your understanding of this PR is not correct, the disk is not attached once created, but we create all disks before and attach them once to the VM, each time you attach a disk to a VM you need to update the VM property, in order to avoid concurrency issues and optimize the process, we attach them once.

xuzhang3 · 2022-10-21T03:32:14Z

@abikouo creation is async but attach still works in serial?

abikouo · 2022-10-21T15:20:06Z

@abikouo creation is async but attach still works in serial?

@xuzhang3 attach disk is performed once per VM, I just add an update in case we doing it for several VMs it is done in parallel

Fred-sun · 2022-10-26T01:30:29Z

@abikouo It would be nice to change the name to "azure_rm_multiplemanageddisks"! and add "azure_rm_multiplemanageddisks" to pr-pipeline.yml, Thank you very much!

https://github.com/abikouo/azure/blob/525b930535bb6e5d282274d0eeb7c99d118965e3/pr-pipelines.yml#L72

abikouo · 2022-10-26T06:24:35Z

@abikouo It would be nice to change the name to "azure_rm_multiplemanageddisks"! and add "azure_rm_multiplemanageddisks" to pr-pipeline.yml, Thank you very much!

https://github.com/abikouo/azure/blob/525b930535bb6e5d282274d0eeb7c99d118965e3/pr-pipelines.yml#L72

@Fred-sun ok I will do it

dleens2 · 2022-10-27T15:48:32Z

Hi @abikouo,

I tested the new changes to the module and had some errors when running it. I ran it against 50 VMs, attempting to attach 3 disks per VM. On about 1/3 of the VMs included in the playbook, I received the following error during the disk attachment phase:
Error updating virtual machine (attaching/detaching disks) <vm-id> - (PropertyChangeNotAllowed) Changing property 'dataDisk.managedDisk.id' is not allowed.\nCode: PropertyChangeNotAllowed\nMessage: Changing property 'dataDisk.managedDisk.id' is not allowed.\nTarget: dataDisk.managedDisk.id

If I rerun the playbook then the disks that failed to attach in the previous run attach successfully. I think we may be running into another API collision issue? Let me know what you think.

Thanks

abikouo · 2022-10-28T13:54:00Z

Hi @abikouo,

I tested the new changes to the module and had some errors when running it. I ran it against 50 VMs, attempting to attach 3 disks per VM. On about 1/3 of the VMs included in the playbook, I received the following error during the disk attachment phase: Error updating virtual machine (attaching/detaching disks) <vm-id> - (PropertyChangeNotAllowed) Changing property 'dataDisk.managedDisk.id' is not allowed.\nCode: PropertyChangeNotAllowed\nMessage: Changing property 'dataDisk.managedDisk.id' is not allowed.\nTarget: dataDisk.managedDisk.id

If I rerun the playbook then the disks that failed to attach in the previous run attach successfully. I think we may be running into another API collision issue? Let me know what you think.

Thanks

Hi @dleens2

Thanks for the feedback.
The issue you are facing is indeed an API collision issue, according to Azure/azure-sdk-for-java#2925 (comment) The issue here is that the operation " imageVM.update() .withExistingDataDisk(disk)..." is a PATCH operation. It can not be called concurrently on a vm. this is basically the same operation we are performing when attaching disk to VM

I managed to reproduce the issue using the following playbook

- name: Create and Attach disks to virtual machine
  azure.azcollection.azure_rm_multiplemanageddisks:
    managed_disks:
      - "{{ item }}"
    managed_by_extended:
      - name: vm-01
        resource_group: test-rg
  register: azure_disks
  async: 1000
  poll: 0
  with_items:
  - disk_size_gb: 1
    name: disk1
    resource_group: test-rg
  - disk_size_gb: 1
    name: disk2
    resource_group: test-rg
  - disk_size_gb: 1
    name: disk3
    resource_group: test-rg

I don't know how you are running your attachment, you should have one task per virtual machine to avoid API collision.
with the playbook above, managed disks are created in parallel, but when trying to attach them to the virtual machine we are facing collision, the new version of the module is already creating managed disks in parallel, so the playbook above should rather turn into

- name: Create and Attach disks to virtual machine
  azure.azcollection.azure_rm_multiplemanageddisks:
    managed_disks:
      - disk_size_gb: 1
        name: disk1
        resource_group: test-rg
      - disk_size_gb: 1
        name: disk2
        resource_group: test-rg
      - disk_size_gb: 1
        name: disk3
        resource_group: test-rg
    managed_by_extended:
      - name: vm-01
        resource_group: test-rg
  register: azure_disks
  async: 1000
  poll: 0

abikouo · 2022-10-28T13:56:10Z

@abikouo It would be nice to change the name to "azure_rm_multiplemanageddisks"! and add "azure_rm_multiplemanageddisks" to pr-pipeline.yml, Thank you very much!

https://github.com/abikouo/azure/blob/525b930535bb6e5d282274d0eeb7c99d118965e3/pr-pipelines.yml#L72

@Fred-sun
the module has been renamed and pr-pipelines.yml and meta/runtime.yml files updated

dleens2 · 2022-10-31T18:17:58Z

Hi @abikouo,

I retried the disk creation and attachment without using a loop as you suggested and it worked without causing any collisions. I also tested for idempotence in subsequent runs and it worked as expected.

Thanks

abikouo · 2022-11-07T11:29:32Z

Hi @abikouo,

I retried the disk creation and attachment without using a loop as you suggested and it worked without causing any collisions. I also tested for idempotence in subsequent runs and it worked as expected.

Thanks

@dleens2 thanks for the update.

abikouo · 2022-11-07T11:30:55Z

@Fred-sun the Pull request is ready for review

Fred-sun · 2022-11-09T06:18:52Z

@abikouo Thank you for your update and we will complete the test and move forward with the merger as soon as possible! Thanks!

xuzhang3 · 2022-11-25T09:39:33Z

@abikouo test failed:

fatal: [testhost]: FAILED! => {
    "changed": false,
    "errors": [
        "managed disk ansibletest-3bd0fb87-fcf6-4fcf-97e3-867e4f8ecd29/disk-copy-without-source-uri has create_option set to copy but not all required parameters (source_uri) are set.",
        "managed disk ansibletest-3bd0fb87-fcf6-4fcf-97e3-867e4f8ecd29/disk-import-without-storage-account has create_option set to import but not all required parameters (source_uri,storage_account_id) are set.",
        "managed disk ansibletest-3bd0fb87-fcf6-4fcf-97e3-867e4f8ecd29/disk-empty-without-disk-size has create_option set to empty but not all required parameters (disk_size_gb) are set."
    ],
    "invocation": {
        "module_args": {
            "ad_user": null,
            "adfs_authority_url": null,
            "api_profile": "latest",
            "append_tags": true,
            "auth_source": "auto",
            "cert_validation_mode": null,
            "client_id": null,
            "cloud_environment": "AzureCloud",
            "log_mode": null,
            "log_path": null,
            "managed_by_extended": null,
            "managed_disks": [
                {
                    "attach_caching": null,
                    "create_option": "copy",
                    "disk_size_gb": null,
                    "location": null,
                    "lun": null,
                    "max_shares": 3,
                    "name": "disk-copy-without-source-uri",
                    "os_type": null,
                    "resource_group": "ansibletest-3bd0fb87-fcf6-4fcf-97e3-867e4f8ecd29",
                    "source_uri": null,
                    "storage_account_id": null,
                    "storage_account_type": null,
                    "zone": null
                },
                {
                    "attach_caching": null,
                    "create_option": "import",
                    "disk_size_gb": null,
                    "location": null,
                    "lun": null,
                    "max_shares": 3,
                    "name": "disk-import-without-storage-account",
                    "os_type": null,
                    "resource_group": "ansibletest-3bd0fb87-fcf6-4fcf-97e3-867e4f8ecd29",
                    "source_uri": null,
                    "storage_account_id": null,
                    "storage_account_type": null,
                    "zone": null
                },
                {
                    "attach_caching": null,
                    "create_option": "empty",
                    "disk_size_gb": null,
                    "location": null,
                    "lun": null,
                    "max_shares": 3,
                    "name": "disk-empty-without-disk-size",
                    "os_type": null,
                    "resource_group": "ansibletest-3bd0fb87-fcf6-4fcf-97e3-867e4f8ecd29",
                    "source_uri": null,
                    "storage_account_id": null,
                    "storage_account_type": null,
                    "zone": null
                }
            ],
            "password": null,
            "profile": null,
            "secret": null,
            "state": "present",
            "subscription_id": null,
            "tags": null,
            "tenant": null,
            "thumbprint": null,
            "x509_certificate_path": null
        }
    },
    "msg": "Some required options are missing from managed disks configuration."
}

…etrieve more than one disk info

abikouo · 2022-11-29T13:56:56Z

disk-copy-without-source-uri

@xuzhang3 how are you running the tests? This task is falling as expected, as there is an ignore_errors: true option to catch this error and later validate that.
Please provide me with the entire test command.
Thanks

xuzhang3 · 2022-11-30T03:38:55Z

@abikouo Rerun the tests, all passed. LGTM

abikouo mentioned this pull request Aug 5, 2022

add async and idempotency support to azurerm_managed_disk #847

Closed

abikouo force-pushed the az_rm_disk branch from 2e8e140 to 30a0577 Compare September 14, 2022 15:27

abikouo changed the title ~~[Do not merge]~~ New module to create/update/delete/attach multiple disks Sep 14, 2022

abikouo force-pushed the az_rm_disk branch from 3ccd62f to 525b930 Compare October 21, 2022 15:14

Fred-sun added new_module_pr Add new modules medium_priority Medium priority work in In trying to solve, or in working with contributors labels Nov 9, 2022

abikouo added 4 commits November 29, 2022 11:47

For test only

b3b43fd

[Do not merge with this commit] update azure_rm_manageddisk_info to r…

23f3646

…etrieve more than one disk info

Raising exception when operation failed to attach/detach disk to VM

959e131

rename module, add new features, add integration tests

b3679d1

abikouo added 6 commits November 29, 2022 11:47

parallel disks creation/deletion

81f157d

update virtual machine in parallel

ebae976

last updates

dcb1297

Rename module and add to pr-pipeline

12bc13b

update integration tests

9324d6b

reduce the number of virtual machine for async test

dd09f2b

abikouo force-pushed the az_rm_disk branch from 0062f99 to dd09f2b Compare November 29, 2022 13:50

xuzhang3 approved these changes Nov 30, 2022

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xuzhang3 merged commit 92a6da1 into ansible-collections:dev Nov 30, 2022

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New module to create/update/delete/attach multiple disks #936

New module to create/update/delete/attach multiple disks #936

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New module to create/update/delete/attach multiple disks #936

New module to create/update/delete/attach multiple disks #936

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Fred-sun commented Oct 26, 2022 •

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