az storage blob download 在 Azure 管道中运行时不下载文件

Question

我有一个 powershell 脚本，用于查询 Azure 存储容器以获取最新的 blob（按创建日期），然后将其下载到本地文件夹。 我可以在本地运行这个脚本，它会按预期执行，下载文件名为“test.yml”的新文件。

function Get-BlobList
{
    return az storage blob list `
        --account-name $accountName `
        --account-key $key `
        --container-name $containerName | `
        ConvertFrom-Json
}

$files = `
    $(Get-BlobList) | `
    Sort-Object -Descending { $_.properties.CreationTime } | `
    Select-Object name

az storage blob download `
    --account-name $accountName `
    --account-key $key `
    --container-name $containerName `
    --name $($files[0].name) `
    --file "$downloadFolder\test.yml"

但是，当我在 Azure DevOps 管道中针对同一个 Azure 存储容器运行此脚本时，无论出于何种原因，文件都没有下载。 不会抛出任何错误，但本地运行的 output 与管道运行不同。

本地运行（按预期工作和下载文件）：

{
  "content": null,
  "deleted": false,
  "metadata": {},
  "name": "20230127.yml",
  "properties": {
    "appendBlobCommittedBlockCount": null,
    "blobTier": null,
    "blobTierChangeTime": null,
    "blobTierInferred": false,
    "blobType": "BlockBlob",
    "contentLength": 247,
    "contentRange": "bytes 0-246/247",
    "contentSettings": {
      "cacheControl": null,
      "contentDisposition": null,
      "contentEncoding": null,
      "contentLanguage": null,
      "contentMd5": "uGLe+ORvBsW6k6il8FekhQ==",
      "contentType": "application/octet-stream"
    },
    "copy": {
      "completionTime": null,
      "id": null,
      "progress": null,
      "source": null,
      "status": null,
      "statusDescription": null
    },
    "creationTime": "2023-01-27T23:48:51+00:00",
    "deletedTime": null,
    "etag": "\"0x8DB00C10ABD11C7\"",
    "lastModified": "2023-01-27T23:48:51+00:00",
    "lease": {
      "duration": null,
      "state": "available",
      "status": "unlocked"
    },
    "pageBlobSequenceNumber": null,
    "remainingRetentionDays": null,
    "serverEncrypted": true
  },
  "snapshot": null
}

管道运行（不下载但也没有错误）：

{
  "container": "manifests",
  "content": "",
  "contentMd5": null,
  "deleted": false,
  "encryptedMetadata": null,
  "encryptionKeySha256": null,
  "encryptionScope": null,
  "hasLegalHold": null,
  "hasVersionsOnly": null,
  "immutabilityPolicy": {
    "expiryTime": null,
    "policyMode": null
  },
  "isAppendBlobSealed": null,
  "isCurrentVersion": null,
  "lastAccessedOn": null,
  "metadata": {},
  "name": "20230127.yml",
  "objectReplicationDestinationPolicy": null,
  "objectReplicationSourceProperties": [],
  "properties": {
    "appendBlobCommittedBlockCount": null,
    "blobTier": null,
    "blobTierChangeTime": null,
    "blobTierInferred": null,
    "blobType": "BlockBlob",
    "contentLength": 247,
    "contentRange": "bytes None-None/247",
    "contentSettings": {
      "cacheControl": null,
      "contentDisposition": null,
      "contentEncoding": null,
      "contentLanguage": null,
      "contentMd5": "uGLe+ORvBsW6k6il8FekhQ==",
      "contentType": "application/octet-stream"
    },
    "copy": {
      "completionTime": null,
      "destinationSnapshot": null,
      "id": null,
      "incrementalCopy": null,
      "progress": null,
      "source": null,
      "status": null,
      "statusDescription": null
    },
    "creationTime": null,
    "deletedTime": null,
    "etag": "\"0x8DB00C10ABD11C7\"",
    "lastModified": "2023-01-27T23:48:51+00:00",
    "lease": {
      "duration": null,
      "state": "available",
      "status": "unlocked"
    },
    "pageBlobSequenceNumber": null,
    "pageRanges": null,
    "rehydrationStatus": null,
    "remainingRetentionDays": null,
    "serverEncrypted": true
  },
  "rehydratePriority": null,
  "requestServerEncrypted": true,
  "snapshot": null,
  "tagCount": null,
  "tags": null,
  "versionId": null
}

值得注意的是，管道运行中的“creationTime”为 null，“contentRange”表示“bytes None-None/247”

在管道中运行此命令时，我是否遗漏了什么？

Answer 1

您可以尝试在Azure CLI 任务中执行az storage blob download 命令，以从 Azure Blob 存储下载文件，如下所示：

- task: AzureCLI@2
  displayName: 'Azure CLI '
  inputs:
    azureSubscription: {your service connection name}
    scriptType: ps
    scriptLocation: inlineScript
    inlineScript: |
     mkdir $(Build.SourcesDirectory)/BlobFile
     az storage blob download --container-name $(containername) --file $(Build.SourcesDirectory)/BlobFile --name "{file name}" --account-key $(accountkey) --account-name $(accountname)

使用mkdir在当前目录中创建一个文件夹，然后从 blob 下载文件并将其保存到该文件夹中。 您可以创建一个服务连接，首先连接到您的 Azure blob，然后在此 Azure CLI 任务中连接到 select。