如何对 Azure CLI 使用 Powershell splatting

我想用Powershell 泼溅 https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_splatting?view=powershell-6有条件地控制某些 Azure CLI 调用使用哪些参数。专门用于创建 CosmosDb 集合。

目标是这样的：

$params = @{
    "db-name" = "test";
    "collection-name"= "test2";
    # makes no difference if I prefix with '-' or '--'
    "-key" = "secretKey";
    "url-connection" = "https://myaccount.documents.azure.com:443"
    "-url-connection" = "https://myaccount.documents.azure.com:443"
}

az cosmosdb collection create @params

不幸的是，这仅适用于db-name and collection-name。其他参数失败并出现此错误：

az : ERROR: az: error: unrecognized arguments: --url-connection:https://myaccount.documents.azure.com:443 
--key:secretKey

经过一番来回之后，我最终使用了阵列扩散 https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_splatting?view=powershell-6#splatting-with-arrays:

$params = "--db-name", "test", "--collection-name", "test2", 
    "--key", "secretKey",
    "--url-connection", "https://myaccount.documents.azure.com:443"

az cosmosdb collection create @params 

现在我可以做这样的事情：

if ($collectionExists) {
    az cosmosdb collection update @colParams @colCreateUpdateParams
} else {
    # note that the partition key cannot be changed by update
    if ($partitionKey -ne $null) {
        $colCreateUpdateParams += "--partition-key-path", $partitionKey
    }
    az cosmosdb collection create @colParams @colCreateUpdateParams
}