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https://docs.microsoft.com/en-us/azure/azure-monitor/logs/data-collector-api
Authorization Header
Any request to the Azure Monitor HTTP Data Collector API must include an authorization header. To authenticate a request, you must sign the request with either the primary or the secondary key for the workspace that is making the request. Then, pass that signature as part of the request.
Here's the format for the authorization header:
| Code Block |
|---|
Authorization: SharedKey <WorkspaceID>:<Signature> |
WorkspaceID is the unique identifier for the Log Analytics workspace. Signature is a Hash-based Message Authentication Code (HMAC) that is constructed from the request and then computed by using the SHA256 algorithm. Then, you encode it by using Base64 encoding.
Use this format to encode the SharedKey signature string:
| Code Block |
|---|
StringToSign = VERB + "\n" +
Content-Length + "\n" +
Content-Type + "\n" +
"x-ms-date:" + x-ms-date + "\n" +
"/api/logs"; |
Here's an example of a signature string:
| Code Block |
|---|
POST\n1024\napplication/json\nx-ms-date:Mon, 04 Apr 2016 08:00:00 GMT\n/api/logs |
When you have the signature string, encode it by using the HMAC-SHA256 algorithm on the UTF-8-encoded string, and then encode the result as Base64. Use this format:
| Code Block |
|---|
Signature=Base64(HMAC-SHA256(UTF8(StringToSign))) |
...
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
# Replace with your Workspace ID
$CustomerId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
# Replace with your Primary Key
$SharedKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
# Specify the name of the record type that you'll be creating
$LogType = "MyRecordType"
# You can use an optional field to specify the timestamp from the data. If the time field is not specified, Azure Monitor assumes the time is the message ingestion time
$TimeStampField = ""
# Create two records with the same set of properties to create
$json = @"
[{ "StringValue": "MyString1",
"NumberValue": 42,
"BooleanValue": true,
"DateValue": "2019-09-12T20:00:00.625Z",
"GUIDValue": "9909ED01-A74C-4874-8ABF-D2678E3AE23D"
},
{ "StringValue": "MyString2",
"NumberValue": 43,
"BooleanValue": false,
"DateValue": "2019-09-12T20:00:00.625Z",
"GUIDValue": "8809ED01-A74C-4874-8ABF-D2678E3AE23D"
}]
"@
# Create the function to create the authorization signature
Function Build-Signature ($customerId, $sharedKey, $date, $contentLength, $method, $contentType, $resource)
{
$xHeaders = "x-ms-date:" + $date
$stringToHash = $method + "`n" + $contentLength + "`n" + $contentType + "`n" + $xHeaders + "`n" + $resource
$bytesToHash = [Text.Encoding]::UTF8.GetBytes($stringToHash)
$keyBytes = [Convert]::FromBase64String($sharedKey)
$sha256 = New-Object System.Security.Cryptography.HMACSHA256
$sha256.Key = $keyBytes
$calculatedHash = $sha256.ComputeHash($bytesToHash)
$encodedHash = [Convert]::ToBase64String($calculatedHash)
$authorization = 'SharedKey {0}:{1}' -f $customerId,$encodedHash
return $authorization
}
# Create the function to create and post the request
Function Post-LogAnalyticsData($customerId, $sharedKey, $body, $logType)
{
$method = "POST"
$contentType = "application/json"
$resource = "/api/logs"
$rfc1123date = [DateTime]::UtcNow.ToString("r")
$contentLength = $body.Length
$signature = Build-Signature `
-customerId $customerId `
-sharedKey $sharedKey `
-date $rfc1123date `
-contentLength $contentLength `
-method $method `
-contentType $contentType `
-resource $resource
$uri = "https://" + $customerId + ".ods.opinsights.azure.com" + $resource + "?api-version=2016-04-01"
$headers = @{
"Authorization" = $signature;
"Log-Type" = $logType;
"x-ms-date" = $rfc1123date;
"time-generated-field" = $TimeStampField;
}
$response = Invoke-WebRequest -Uri $uri -Method $method -ContentType $contentType -Headers $headers -Body $body -UseBasicParsing
return $response.StatusCode
}
# Submit the data to the API endpoint
Post-LogAnalyticsData -customerId $customerId -sharedKey $sharedKey -body ([System.Text.Encoding]::UTF8.GetBytes($json)) -logType $logType |
Querying Submitted Data
Azure Arc
https://docs.microsoft.com/en-us/azure/architecture/hybrid/arc-hybrid-kubernetes
Kafka Connect with Azure Log Analytics Sink Connector
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