Add job log upload support (#2447)

* Refactor and add job log upload support

* Rename method to be consistent
This commit is contained in:
Yang Cao
2023-02-21 09:55:47 -05:00
committed by GitHub
parent aaf02ab34c
commit 0befa62f64
4 changed files with 232 additions and 133 deletions

View File

@@ -32,6 +32,7 @@ namespace GitHub.Runner.Common
Task<TaskAttachment> CreateAttachmentAsync(Guid scopeIdentifier, string hubName, Guid planId, Guid timelineId, Guid timelineRecordId, String type, String name, Stream uploadStream, CancellationToken cancellationToken);
Task CreateStepSummaryAsync(string planId, string jobId, Guid stepId, string file, CancellationToken cancellationToken);
Task CreateResultsStepLogAsync(string planId, string jobId, Guid stepId, string file, bool finalize, bool firstBlock, long lineCount, CancellationToken cancellationToken);
Task CreateResultsJobLogAsync(string planId, string jobId, string file, bool finalize, bool firstBlock, long lineCount, CancellationToken cancellationToken);
Task<TaskLog> CreateLogAsync(Guid scopeIdentifier, string hubName, Guid planId, TaskLog log, CancellationToken cancellationToken);
Task<Timeline> CreateTimelineAsync(Guid scopeIdentifier, string hubName, Guid planId, Guid timelineId, CancellationToken cancellationToken);
Task<List<TimelineRecord>> UpdateTimelineRecordsAsync(Guid scopeIdentifier, string hubName, Guid planId, Guid timelineId, IEnumerable<TimelineRecord> records, CancellationToken cancellationToken);
@@ -335,6 +336,14 @@ namespace GitHub.Runner.Common
throw new InvalidOperationException("Results client is not initialized.");
}
public Task CreateResultsJobLogAsync(string planId, string jobId, string file, bool finalize, bool firstBlock, long lineCount, CancellationToken cancellationToken)
{
if (_resultsClient != null)
{
return _resultsClient.UploadResultsJobLogAsync(planId, jobId, file, finalize, firstBlock, lineCount, cancellationToken: cancellationToken);
}
throw new InvalidOperationException("Results client is not initialized.");
}
public Task<TaskLog> CreateLogAsync(Guid scopeIdentifier, string hubName, Guid planId, TaskLog log, CancellationToken cancellationToken)
{

View File

@@ -85,6 +85,7 @@ namespace GitHub.Runner.Common
private bool _firstConsoleOutputs = true;
private bool _resultsClientInitiated = false;
private delegate Task ResultsFileUploadHandler(ResultsUploadFileInfo file);
public override void Initialize(IHostContext hostContext)
{
@@ -252,12 +253,6 @@ namespace GitHub.Runner.Common
return;
}
if (timelineRecordId == _jobTimelineRecordId && String.Equals(type, CoreAttachmentType.ResultsLog, StringComparison.Ordinal))
{
Trace.Verbose("Skipping job log {0} for record {1}", path, timelineRecordId);
return;
}
// all parameter not null, file path exist.
var newFile = new ResultsUploadFileInfo()
{
@@ -503,8 +498,16 @@ namespace GitHub.Runner.Common
}
else if (String.Equals(file.Type, CoreAttachmentType.ResultsLog, StringComparison.OrdinalIgnoreCase))
{
Trace.Info($"Got a step log file to send to results service.");
await UploadResultsStepLogFile(file);
if (file.RecordId != _jobTimelineRecordId)
{
Trace.Info($"Got a step log file to send to results service.");
await UploadResultsStepLogFile(file);
}
else if (file.RecordId == _jobTimelineRecordId)
{
Trace.Info($"Got a job log file to send to results service.");
await UploadResultsJobLogFile(file);
}
}
}
catch (Exception ex)
@@ -813,40 +816,43 @@ namespace GitHub.Runner.Common
private async Task UploadSummaryFile(ResultsUploadFileInfo file)
{
bool uploadSucceed = false;
try
Trace.Info($"Starting to upload summary file to results service {file.Name}, {file.Path}");
ResultsFileUploadHandler summaryHandler = async (file) =>
{
// Upload the step summary
Trace.Info($"Starting to upload summary file to results service {file.Name}, {file.Path}");
await _jobServer.CreateStepSummaryAsync(file.PlanId, file.JobId, file.RecordId, file.Path, CancellationToken.None);
};
uploadSucceed = true;
}
finally
{
if (uploadSucceed && file.DeleteSource)
{
try
{
File.Delete(file.Path);
}
catch (Exception ex)
{
Trace.Info("Catch exception during delete success results uploaded summary file.");
Trace.Error(ex);
}
}
}
await UploadResultsFile(file, summaryHandler);
}
private async Task UploadResultsStepLogFile(ResultsUploadFileInfo file)
{
Trace.Info($"Starting upload of step log file to results service {file.Name}, {file.Path}");
ResultsFileUploadHandler stepLogHandler = async (file) =>
{
await _jobServer.CreateResultsStepLogAsync(file.PlanId, file.JobId, file.RecordId, file.Path, file.Finalize, file.FirstBlock, file.TotalLines, CancellationToken.None);
};
await UploadResultsFile(file, stepLogHandler);
}
private async Task UploadResultsJobLogFile(ResultsUploadFileInfo file)
{
Trace.Info($"Starting upload of job log file to results service {file.Name}, {file.Path}");
ResultsFileUploadHandler jobLogHandler = async (file) =>
{
await _jobServer.CreateResultsJobLogAsync(file.PlanId, file.JobId, file.Path, file.Finalize, file.FirstBlock, file.TotalLines, CancellationToken.None);
};
await UploadResultsFile(file, jobLogHandler);
}
private async Task UploadResultsFile(ResultsUploadFileInfo file, ResultsFileUploadHandler uploadHandler)
{
bool uploadSucceed = false;
try
{
Trace.Info($"Starting upload of step log file to results service {file.Name}, {file.Path}");
await _jobServer.CreateResultsStepLogAsync(file.PlanId, file.JobId, file.RecordId, file.Path, file.Finalize, file.FirstBlock, file.TotalLines, CancellationToken.None);
await uploadHandler(file);
uploadSucceed = true;
}
finally

View File

@@ -28,6 +28,42 @@ namespace GitHub.Services.Results.Contracts
public string BlobStorageType;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class StepSummaryMetadataCreate
{
[DataMember]
public string StepBackendId;
[DataMember]
public string WorkflowRunBackendId;
[DataMember]
public string WorkflowJobRunBackendId;
[DataMember]
public long Size;
[DataMember]
public string UploadedAt;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class GetSignedJobLogsURLRequest
{
[DataMember]
public string WorkflowJobRunBackendId;
[DataMember]
public string WorkflowRunBackendId;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class GetSignedJobLogsURLResponse
{
[DataMember]
public string LogsUrl;
[DataMember]
public string BlobStorageType;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class GetSignedStepLogsURLRequest
@@ -47,41 +83,15 @@ namespace GitHub.Services.Results.Contracts
[DataMember]
public string LogsUrl;
[DataMember]
public long SoftSizeLimit;
[DataMember]
public string BlobStorageType;
[DataMember]
public long SoftSizeLimit;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class StepSummaryMetadataCreate
public class JobLogsMetadataCreate
{
[DataMember]
public string StepBackendId;
[DataMember]
public string WorkflowRunBackendId;
[DataMember]
public string WorkflowJobRunBackendId;
[DataMember]
public long Size;
[DataMember]
public string UploadedAt;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class CreateStepSummaryMetadataResponse
{
[DataMember]
public bool Ok;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class StepLogsMetadataCreate
{
[DataMember]
public string StepBackendId;
[DataMember]
public string WorkflowRunBackendId;
[DataMember]
@@ -94,7 +104,23 @@ namespace GitHub.Services.Results.Contracts
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class CreateStepLogsMetadataResponse
public class StepLogsMetadataCreate
{
[DataMember]
public string WorkflowRunBackendId;
[DataMember]
public string WorkflowJobRunBackendId;
[DataMember]
public string StepBackendId;
[DataMember]
public string UploadedAt;
[DataMember]
public long LineCount;
}
[DataContract]
[JsonObject(NamingStrategyType = typeof(SnakeCaseNamingStrategy))]
public class CreateMetadataResponse
{
[DataMember]
public bool Ok;

View File

@@ -24,7 +24,26 @@ namespace GitHub.Services.Results.Client
m_formatter = new JsonMediaTypeFormatter();
}
public async Task<GetSignedStepSummaryURLResponse> GetStepSummaryUploadUrlAsync(string planId, string jobId, Guid stepId, CancellationToken cancellationToken)
// Get Sas URL calls
private async Task<T> GetResultsSignedURLResponse<R, T>(Uri uri, CancellationToken cancellationToken, R request)
{
using (HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, uri))
{
requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", m_token);
requestMessage.Headers.Accept.Add(MediaTypeWithQualityHeaderValue.Parse("application/json"));
using (HttpContent content = new ObjectContent<R>(request, m_formatter))
{
requestMessage.Content = content;
using (var response = await SendAsync(requestMessage, HttpCompletionOption.ResponseContentRead, cancellationToken: cancellationToken))
{
return await ReadJsonContentAsync<T>(response, cancellationToken);
}
}
}
}
private async Task<GetSignedStepSummaryURLResponse> GetStepSummaryUploadUrlAsync(string planId, string jobId, Guid stepId, CancellationToken cancellationToken)
{
var request = new GetSignedStepSummaryURLRequest()
{
@@ -33,25 +52,12 @@ namespace GitHub.Services.Results.Client
StepBackendId = stepId.ToString()
};
var stepSummaryUploadRequest = new Uri(m_resultsServiceUrl, "twirp/results.services.receiver.Receiver/GetStepSummarySignedBlobURL");
var getStepSummarySignedBlobURLEndpoint = new Uri(m_resultsServiceUrl, Constants.GetStepSummarySignedBlobURL);
using (HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, stepSummaryUploadRequest))
{
requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", m_token);
requestMessage.Headers.Accept.Add(MediaTypeWithQualityHeaderValue.Parse("application/json"));
using (HttpContent content = new ObjectContent<GetSignedStepSummaryURLRequest>(request, m_formatter))
{
requestMessage.Content = content;
using (var response = await SendAsync(requestMessage, HttpCompletionOption.ResponseContentRead, cancellationToken: cancellationToken))
{
return await ReadJsonContentAsync<GetSignedStepSummaryURLResponse>(response, cancellationToken);
}
}
}
return await GetResultsSignedURLResponse<GetSignedStepSummaryURLRequest, GetSignedStepSummaryURLResponse>(getStepSummarySignedBlobURLEndpoint, cancellationToken, request);
}
public async Task<GetSignedStepLogsURLResponse> GetStepLogUploadUrlAsync(string planId, string jobId, Guid stepId, CancellationToken cancellationToken)
private async Task<GetSignedStepLogsURLResponse> GetStepLogUploadUrlAsync(string planId, string jobId, Guid stepId, CancellationToken cancellationToken)
{
var request = new GetSignedStepLogsURLRequest()
{
@@ -60,19 +66,43 @@ namespace GitHub.Services.Results.Client
StepBackendId = stepId.ToString(),
};
var stepLogsUploadRequest = new Uri(m_resultsServiceUrl, "twirp/results.services.receiver.Receiver/GetStepLogsSignedBlobURL");
var getStepLogsSignedBlobURLEndpoint = new Uri(m_resultsServiceUrl, Constants.GetStepLogsSignedBlobURL);
using (HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, stepLogsUploadRequest))
return await GetResultsSignedURLResponse<GetSignedStepLogsURLRequest, GetSignedStepLogsURLResponse>(getStepLogsSignedBlobURLEndpoint, cancellationToken, request);
}
private async Task<GetSignedJobLogsURLResponse> GetJobLogUploadUrlAsync(string planId, string jobId, CancellationToken cancellationToken)
{
var request = new GetSignedJobLogsURLRequest()
{
WorkflowJobRunBackendId = jobId,
WorkflowRunBackendId = planId,
};
var getJobLogsSignedBlobURLEndpoint = new Uri(m_resultsServiceUrl, Constants.GetJobLogsSignedBlobURL);
return await GetResultsSignedURLResponse<GetSignedJobLogsURLRequest, GetSignedJobLogsURLResponse>(getJobLogsSignedBlobURLEndpoint, cancellationToken, request);
}
// Create metadata calls
private async Task CreateMetadata<R>(Uri uri, CancellationToken cancellationToken, R request, string timestamp)
{
using (HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, uri))
{
requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", m_token);
requestMessage.Headers.Accept.Add(MediaTypeWithQualityHeaderValue.Parse("application/json"));
using (HttpContent content = new ObjectContent<GetSignedStepLogsURLRequest>(request, m_formatter))
using (HttpContent content = new ObjectContent<R>(request, m_formatter))
{
requestMessage.Content = content;
using (var response = await SendAsync(requestMessage, HttpCompletionOption.ResponseContentRead, cancellationToken: cancellationToken))
{
return await ReadJsonContentAsync<GetSignedStepLogsURLResponse>(response, cancellationToken);
var jsonResponse = await ReadJsonContentAsync<CreateMetadataResponse>(response, cancellationToken);
if (!jsonResponse.Ok)
{
throw new Exception($"Failed to mark {typeof(R).Name} upload as complete, status code: {response.StatusCode}, ok: {jsonResponse.Ok}, timestamp: {timestamp}");
}
}
}
}
@@ -80,7 +110,7 @@ namespace GitHub.Services.Results.Client
private async Task StepSummaryUploadCompleteAsync(string planId, string jobId, Guid stepId, long size, CancellationToken cancellationToken)
{
var timestamp = DateTime.UtcNow.ToString("yyyy-MM-dd'T'HH:mm:ss.fffK");
var timestamp = DateTime.UtcNow.ToString(Constants.TimestampFormat);
var request = new StepSummaryMetadataCreate()
{
WorkflowJobRunBackendId = jobId,
@@ -90,31 +120,13 @@ namespace GitHub.Services.Results.Client
UploadedAt = timestamp
};
var stepSummaryUploadCompleteRequest = new Uri(m_resultsServiceUrl, "twirp/results.services.receiver.Receiver/CreateStepSummaryMetadata");
using (HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, stepSummaryUploadCompleteRequest))
{
requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", m_token);
requestMessage.Headers.Accept.Add(MediaTypeWithQualityHeaderValue.Parse("application/json"));
using (HttpContent content = new ObjectContent<StepSummaryMetadataCreate>(request, m_formatter))
{
requestMessage.Content = content;
using (var response = await SendAsync(requestMessage, HttpCompletionOption.ResponseContentRead, cancellationToken: cancellationToken))
{
var jsonResponse = await ReadJsonContentAsync<CreateStepSummaryMetadataResponse>(response, cancellationToken);
if (!jsonResponse.Ok)
{
throw new Exception($"Failed to mark step summary upload as complete, status code: {response.StatusCode}, ok: {jsonResponse.Ok}, size: {size}, timestamp: {timestamp}");
}
}
}
}
var createStepSummaryMetadataEndpoint = new Uri(m_resultsServiceUrl, Constants.CreateStepSummaryMetadata);
await CreateMetadata<StepSummaryMetadataCreate>(createStepSummaryMetadataEndpoint, cancellationToken, request, timestamp);
}
private async Task StepLogUploadCompleteAsync(string planId, string jobId, Guid stepId, long lineCount, CancellationToken cancellationToken)
{
var timestamp = DateTime.UtcNow.ToString("yyyy-MM-dd'T'HH:mm:ss.fffK");
var timestamp = DateTime.UtcNow.ToString(Constants.TimestampFormat);
var request = new StepLogsMetadataCreate()
{
WorkflowJobRunBackendId = jobId,
@@ -124,29 +136,26 @@ namespace GitHub.Services.Results.Client
LineCount = lineCount,
};
var stepLogsUploadCompleteRequest = new Uri(m_resultsServiceUrl, "twirp/results.services.receiver.Receiver/CreateStepLogsMetadata");
using (HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, stepLogsUploadCompleteRequest))
{
requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", m_token);
requestMessage.Headers.Accept.Add(MediaTypeWithQualityHeaderValue.Parse("application/json"));
using (HttpContent content = new ObjectContent<StepLogsMetadataCreate>(request, m_formatter))
{
requestMessage.Content = content;
using (var response = await SendAsync(requestMessage, HttpCompletionOption.ResponseContentRead, cancellationToken: cancellationToken))
{
var jsonResponse = await ReadJsonContentAsync<CreateStepSummaryMetadataResponse>(response, cancellationToken);
if (!jsonResponse.Ok)
{
throw new Exception($"Failed to mark step log upload as complete, status code: {response.StatusCode}, ok: {jsonResponse.Ok}, timestamp: {timestamp}");
}
}
}
}
var createStepLogsMetadataEndpoint = new Uri(m_resultsServiceUrl, Constants.CreateStepLogsMetadata);
await CreateMetadata<StepLogsMetadataCreate>(createStepLogsMetadataEndpoint, cancellationToken, request, timestamp);
}
private async Task<HttpResponseMessage> UploadFileAsync(string url, string blobStorageType, FileStream file, CancellationToken cancellationToken)
private async Task JobLogUploadCompleteAsync(string planId, string jobId, long lineCount, CancellationToken cancellationToken)
{
var timestamp = DateTime.UtcNow.ToString(Constants.TimestampFormat);
var request = new JobLogsMetadataCreate()
{
WorkflowJobRunBackendId = jobId,
WorkflowRunBackendId = planId,
UploadedAt = timestamp,
LineCount = lineCount,
};
var createJobLogsMetadataEndpoint = new Uri(m_resultsServiceUrl, Constants.CreateJobLogsMetadata);
await CreateMetadata<JobLogsMetadataCreate>(createJobLogsMetadataEndpoint, cancellationToken, request, timestamp);
}
private async Task<HttpResponseMessage> UploadBlockFileAsync(string url, string blobStorageType, FileStream file, CancellationToken cancellationToken)
{
// Upload the file to the url
var request = new HttpRequestMessage(HttpMethod.Put, url)
@@ -156,7 +165,7 @@ namespace GitHub.Services.Results.Client
if (blobStorageType == BlobStorageTypes.AzureBlobStorage)
{
request.Content.Headers.Add("x-ms-blob-type", "BlockBlob");
request.Content.Headers.Add(Constants.AzureBlobTypeHeader, Constants.AzureBlockBlob);
}
using (var response = await SendAsync(request, HttpCompletionOption.ResponseHeadersRead, userState: null, cancellationToken))
@@ -177,7 +186,7 @@ namespace GitHub.Services.Results.Client
};
if (blobStorageType == BlobStorageTypes.AzureBlobStorage)
{
request.Content.Headers.Add("x-ms-blob-type", "AppendBlob");
request.Content.Headers.Add(Constants.AzureBlobTypeHeader, Constants.AzureAppendBlob);
request.Content.Headers.Add("Content-Length", "0");
}
@@ -203,7 +212,7 @@ namespace GitHub.Services.Results.Client
if (blobStorageType == BlobStorageTypes.AzureBlobStorage)
{
request.Content.Headers.Add("Content-Length", fileSize.ToString());
request.Content.Headers.Add("x-ms-blob-sealed", finalize.ToString());
request.Content.Headers.Add(Constants.AzureBlobSealedHeader, finalize.ToString());
}
using (var response = await SendAsync(request, HttpCompletionOption.ResponseHeadersRead, userState: null, cancellationToken))
@@ -236,7 +245,7 @@ namespace GitHub.Services.Results.Client
// Upload the file
using (var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, true))
{
var response = await UploadFileAsync(uploadUrlResponse.SummaryUrl, uploadUrlResponse.BlobStorageType, fileStream, cancellationToken);
var response = await UploadBlockFileAsync(uploadUrlResponse.SummaryUrl, uploadUrlResponse.BlobStorageType, fileStream, cancellationToken);
}
// Send step summary upload complete message
@@ -253,9 +262,6 @@ namespace GitHub.Services.Results.Client
throw new Exception("Failed to get step log upload url");
}
// Do we want to throw an exception here or should we just be uploading/truncating the data
var fileSize = new FileInfo(file).Length;
// Create the Append blob
if (firstBlock)
{
@@ -263,6 +269,7 @@ namespace GitHub.Services.Results.Client
}
// Upload content
var fileSize = new FileInfo(file).Length;
using (var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, true))
{
var response = await UploadAppendFileAsync(uploadUrlResponse.LogsUrl, uploadUrlResponse.BlobStorageType, fileStream, finalize, fileSize, cancellationToken);
@@ -276,8 +283,59 @@ namespace GitHub.Services.Results.Client
}
}
// Handle file upload for job log
public async Task UploadResultsJobLogAsync(string planId, string jobId, string file, bool finalize, bool firstBlock, long lineCount, CancellationToken cancellationToken)
{
// Get the upload url
var uploadUrlResponse = await GetJobLogUploadUrlAsync(planId, jobId, cancellationToken);
if (uploadUrlResponse == null || uploadUrlResponse.LogsUrl == null)
{
throw new Exception("Failed to get job log upload url");
}
// Create the Append blob
if (firstBlock)
{
await CreateAppendFileAsync(uploadUrlResponse.LogsUrl, uploadUrlResponse.BlobStorageType, cancellationToken);
}
// Upload content
var fileSize = new FileInfo(file).Length;
using (var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, true))
{
var response = await UploadAppendFileAsync(uploadUrlResponse.LogsUrl, uploadUrlResponse.BlobStorageType, fileStream, finalize, fileSize, cancellationToken);
}
// Update metadata
if (finalize)
{
// Send step log upload complete message
await JobLogUploadCompleteAsync(planId, jobId, lineCount, cancellationToken);
}
}
private MediaTypeFormatter m_formatter;
private Uri m_resultsServiceUrl;
private string m_token;
}
// Constants specific to results
public static class Constants
{
public static readonly string TimestampFormat = "yyyy-MM-dd'T'HH:mm:ss.fffK";
public static readonly string ResultsReceiverTwirpEndpoint = "twirp/results.services.receiver.Receiver/";
public static readonly string GetStepSummarySignedBlobURL = ResultsReceiverTwirpEndpoint + "GetStepSummarySignedBlobURL";
public static readonly string CreateStepSummaryMetadata = ResultsReceiverTwirpEndpoint + "CreateStepSummaryMetadata";
public static readonly string GetStepLogsSignedBlobURL = ResultsReceiverTwirpEndpoint + "GetStepLogsSignedBlobURL";
public static readonly string CreateStepLogsMetadata = ResultsReceiverTwirpEndpoint + "CreateStepLogsMetadata";
public static readonly string GetJobLogsSignedBlobURL = ResultsReceiverTwirpEndpoint + "GetJobLogsSignedBlobURL";
public static readonly string CreateJobLogsMetadata = ResultsReceiverTwirpEndpoint + "CreateJobLogsMetadata";
public static readonly string AzureBlobSealedHeader = "x-ms-blob-sealed";
public static readonly string AzureBlobTypeHeader = "x-ms-blob-type";
public static readonly string AzureBlockBlob = "BlockBlob";
public static readonly string AzureAppendBlob = "AppendBlob";
}
}