protected override async Task <bool> PerformActionAsync()
{
// Disable interactive since this command is intended to be run as part of a pipeline.
DisableInteractive = true;
string projectLocation = this.GetStringValueOrDefault(this.ProjectLocation, CommonDefinedCommandOptions.ARGUMENT_PROJECT_LOCATION, false);
string s3Bucket = this.GetStringValueOrDefault(this.S3Bucket, LambdaDefinedCommandOptions.ARGUMENT_S3_BUCKET, true);
string s3Prefix = this.GetStringValueOrDefault(this.S3Prefix, LambdaDefinedCommandOptions.ARGUMENT_S3_PREFIX, false);
string templatePath = this.GetStringValueOrDefault(this.CloudFormationTemplate, LambdaDefinedCommandOptions.ARGUMENT_CLOUDFORMATION_TEMPLATE, true);
string outputTemplatePath = this.GetStringValueOrDefault(this.CloudFormationOutputTemplate, LambdaDefinedCommandOptions.ARGUMENT_OUTPUT_CLOUDFORMATION_TEMPLATE, true);
if (!Path.IsPathRooted(templatePath))
{
templatePath = Path.Combine(Utilities.DetermineProjectLocation(this.WorkingDirectory, projectLocation), templatePath);
}
if (!File.Exists(templatePath))
{
throw new LambdaToolsException($"Template file {templatePath} cannot be found.", LambdaToolsException.LambdaErrorCode.ServerlessTemplateNotFound);
}
await Utilities.ValidateBucketRegionAsync(this.S3Client, s3Bucket);
var templateBody = File.ReadAllText(templatePath);
// Process any template substitutions
templateBody = LambdaUtilities.ProcessTemplateSubstitions(this.Logger, templateBody, this.GetKeyValuePairOrDefault(this.TemplateSubstitutions, LambdaDefinedCommandOptions.ARGUMENT_CLOUDFORMATION_TEMPLATE_SUBSTITUTIONS, false), Utilities.DetermineProjectLocation(this.WorkingDirectory, projectLocation));
var options = new DefaultLocationOption
{
Configuration = this.GetStringValueOrDefault(this.Configuration, CommonDefinedCommandOptions.ARGUMENT_CONFIGURATION, false),
TargetFramework = this.GetStringValueOrDefault(this.TargetFramework, CommonDefinedCommandOptions.ARGUMENT_FRAMEWORK, false),
MSBuildParameters = this.GetStringValueOrDefault(this.MSBuildParameters, CommonDefinedCommandOptions.ARGUMENT_MSBUILD_PARAMETERS, false),
DisableVersionCheck = this.GetBoolValueOrDefault(this.DisableVersionCheck, LambdaDefinedCommandOptions.ARGUMENT_DISABLE_VERSION_CHECK, false).GetValueOrDefault()
};
var templateProcessor = new TemplateProcessorManager(this.Logger, this.S3Client, s3Bucket, s3Prefix, options);
templateBody = await templateProcessor.TransformTemplateAsync(templatePath, templateBody);
this.Logger.WriteLine($"Writing updated template: {outputTemplatePath}");
File.WriteAllText(outputTemplatePath, templateBody);
return(true);
}
protected override async Task <bool> PerformActionAsync()
{
string projectLocation = this.GetStringValueOrDefault(this.ProjectLocation, CommonDefinedCommandOptions.ARGUMENT_PROJECT_LOCATION, false);
string stackName = this.GetStringValueOrDefault(this.StackName, LambdaDefinedCommandOptions.ARGUMENT_STACK_NAME, true);
string s3Bucket = this.GetStringValueOrDefault(this.S3Bucket, LambdaDefinedCommandOptions.ARGUMENT_S3_BUCKET, true);
string s3Prefix = this.GetStringValueOrDefault(this.S3Prefix, LambdaDefinedCommandOptions.ARGUMENT_S3_PREFIX, false);
string templatePath = this.GetStringValueOrDefault(this.CloudFormationTemplate, LambdaDefinedCommandOptions.ARGUMENT_CLOUDFORMATION_TEMPLATE, true);
await Utilities.ValidateBucketRegionAsync(this.S3Client, s3Bucket);
if (!Path.IsPathRooted(templatePath))
{
templatePath = Path.Combine(Utilities.DetermineProjectLocation(this.WorkingDirectory, projectLocation), templatePath);
}
if (!File.Exists(templatePath))
{
throw new LambdaToolsException($"Template file {templatePath} cannot be found.", LambdaToolsException.LambdaErrorCode.ServerlessTemplateNotFound);
}
// Read in the serverless template and update all the locations for Lambda functions to point to the app bundle that was just uploaded.
string templateBody = File.ReadAllText(templatePath);
// Process any template substitutions
templateBody = LambdaUtilities.ProcessTemplateSubstitions(this.Logger, templateBody, this.GetKeyValuePairOrDefault(this.TemplateSubstitutions, LambdaDefinedCommandOptions.ARGUMENT_CLOUDFORMATION_TEMPLATE_SUBSTITUTIONS, false), Utilities.DetermineProjectLocation(this.WorkingDirectory, projectLocation));
var options = new DefaultLocationOption
{
Configuration = this.GetStringValueOrDefault(this.Configuration, CommonDefinedCommandOptions.ARGUMENT_CONFIGURATION, false),
TargetFramework = this.GetStringValueOrDefault(this.TargetFramework, CommonDefinedCommandOptions.ARGUMENT_FRAMEWORK, false),
MSBuildParameters = this.GetStringValueOrDefault(this.MSBuildParameters, CommonDefinedCommandOptions.ARGUMENT_MSBUILD_PARAMETERS, false),
DisableVersionCheck = this.GetBoolValueOrDefault(this.DisableVersionCheck, LambdaDefinedCommandOptions.ARGUMENT_DISABLE_VERSION_CHECK, false).GetValueOrDefault(),
Package = this.GetStringValueOrDefault(this.Package, LambdaDefinedCommandOptions.ARGUMENT_PACKAGE, false)
};
var templateProcessor = new TemplateProcessorManager(this.Logger, this.S3Client, s3Bucket, s3Prefix, options);
templateBody = await templateProcessor.TransformTemplateAsync(templatePath, templateBody);
// Upload the template to S3 instead of sending it straight to CloudFormation to avoid the size limitation
string s3KeyTemplate;
using (var stream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(templateBody)))
{
s3KeyTemplate = await Utilities.UploadToS3Async(this.Logger, this.S3Client, s3Bucket, s3Prefix, stackName + "-" + Path.GetFileName(templatePath), stream);
}
var existingStack = await GetExistingStackAsync(stackName);
this.Logger.WriteLine("Found existing stack: " + (existingStack != null));
var changeSetName = "Lambda-Tools-" + DateTime.Now.Ticks;
List <Tag> tagList = null;
{
var tags = this.GetKeyValuePairOrDefault(this.Tags, LambdaDefinedCommandOptions.ARGUMENT_FUNCTION_TAGS, false);
if (tags != null)
{
tagList = new List <Tag>();
foreach (var kvp in tags)
{
tagList.Add(new Tag {
Key = kvp.Key, Value = kvp.Value
});
}
}
}
// Determine if the stack is in a good state to be updated.
ChangeSetType changeSetType;
if (existingStack == null || existingStack.StackStatus == StackStatus.REVIEW_IN_PROGRESS || existingStack.StackStatus == StackStatus.DELETE_COMPLETE)
{
changeSetType = ChangeSetType.CREATE;
}
// If the status was ROLLBACK_COMPLETE that means the stack failed on initial creation
// and the resources were cleaned up. It is safe to delete the stack so we can recreate it.
else if (existingStack.StackStatus == StackStatus.ROLLBACK_COMPLETE)
{
await DeleteRollbackCompleteStackAsync(existingStack);
changeSetType = ChangeSetType.CREATE;
}
// If the status was ROLLBACK_IN_PROGRESS that means the initial creation is failing.
// Wait to see if it goes into ROLLBACK_COMPLETE status meaning everything got cleaned up and then delete it.
else if (existingStack.StackStatus == StackStatus.ROLLBACK_IN_PROGRESS)
{
existingStack = await WaitForNoLongerInProgress(existingStack.StackName);
if (existingStack != null && existingStack.StackStatus == StackStatus.ROLLBACK_COMPLETE)
{
await DeleteRollbackCompleteStackAsync(existingStack);
}
changeSetType = ChangeSetType.CREATE;
}
// If the status was DELETE_IN_PROGRESS then just wait for delete to complete
else if (existingStack.StackStatus == StackStatus.DELETE_IN_PROGRESS)
{
await WaitForNoLongerInProgress(existingStack.StackName);
changeSetType = ChangeSetType.CREATE;
}
// The Stack state is in a normal state and ready to be updated.
else if (existingStack.StackStatus == StackStatus.CREATE_COMPLETE ||
existingStack.StackStatus == StackStatus.UPDATE_COMPLETE ||
existingStack.StackStatus == StackStatus.UPDATE_ROLLBACK_COMPLETE)
{
changeSetType = ChangeSetType.UPDATE;
if (tagList == null)
{
tagList = existingStack.Tags;
}
}
// All other states means the Stack is in an inconsistent state.
else
{
this.Logger.WriteLine($"The stack's current state of {existingStack.StackStatus} is invalid for updating");
return(false);
}
CreateChangeSetResponse changeSetResponse;
try
{
var definedParameters = LambdaUtilities.GetTemplateDefinedParameters(templateBody);
var templateParameters = GetTemplateParameters(changeSetType == ChangeSetType.UPDATE ? existingStack : null, definedParameters);
if (templateParameters != null && templateParameters.Any())
{
var setParameters = templateParameters.Where(x => !x.UsePreviousValue);
// ReSharper disable once PossibleMultipleEnumeration
if (setParameters.Any())
{
this.Logger.WriteLine("Template Parameters Applied:");
foreach (var parameter in setParameters)
{
Tuple <string, bool> dp = null;
if (definedParameters != null)
{
dp = definedParameters.FirstOrDefault(x => string.Equals(x.Item1, parameter.ParameterKey));
}
if (dp != null && dp.Item2)
{
this.Logger.WriteLine($"\t{parameter.ParameterKey}: ****");
}
else
{
this.Logger.WriteLine($"\t{parameter.ParameterKey}: {parameter.ParameterValue}");
}
}
}
}
var capabilities = new List <string>();
var disabledCapabilties = GetStringValuesOrDefault(this.DisabledCapabilities, LambdaDefinedCommandOptions.ARGUMENT_CLOUDFORMATION_DISABLE_CAPABILITIES, false);
if (disabledCapabilties?.FirstOrDefault(x => string.Equals(x, "CAPABILITY_IAM", StringComparison.OrdinalIgnoreCase)) == null)
{
capabilities.Add("CAPABILITY_IAM");
}
if (disabledCapabilties?.FirstOrDefault(x => string.Equals(x, "CAPABILITY_NAMED_IAM", StringComparison.OrdinalIgnoreCase)) == null)
{
capabilities.Add("CAPABILITY_NAMED_IAM");
}
if (tagList == null)
{
tagList = new List <Tag>();
}
if (tagList.FirstOrDefault(x => string.Equals(x.Key, LambdaConstants.SERVERLESS_TAG_NAME)) == null)
{
tagList.Add(new Tag {
Key = LambdaConstants.SERVERLESS_TAG_NAME, Value = "true"
});
}
var changeSetRequest = new CreateChangeSetRequest
{
StackName = stackName,
Parameters = templateParameters,
ChangeSetName = changeSetName,
ChangeSetType = changeSetType,
Capabilities = capabilities,
RoleARN = this.GetStringValueOrDefault(this.CloudFormationRole, LambdaDefinedCommandOptions.ARGUMENT_CLOUDFORMATION_ROLE, false),
Tags = tagList
};
if (new FileInfo(templatePath).Length < LambdaConstants.MAX_TEMPLATE_BODY_IN_REQUEST_SIZE)
{
changeSetRequest.TemplateBody = templateBody;
}
else
{
changeSetRequest.TemplateURL = this.S3Client.GetPreSignedURL(new S3.Model.GetPreSignedUrlRequest {
BucketName = s3Bucket, Key = s3KeyTemplate, Expires = DateTime.Now.AddHours(1)
});
}
// Create the change set which performs the transformation on the Serverless resources in the template.
changeSetResponse = await this.CloudFormationClient.CreateChangeSetAsync(changeSetRequest);
this.Logger.WriteLine("CloudFormation change set created");
}
catch (LambdaToolsException)
{
throw;
}
catch (Exception e)
{
throw new LambdaToolsException($"Error creating CloudFormation change set: {e.Message}", LambdaToolsException.LambdaErrorCode.CloudFormationCreateStack, e);
}
// The change set can take a few seconds to be reviewed and be ready to be executed.
if (!await WaitForChangeSetBeingAvailableAsync(changeSetResponse.Id))
{
return(false);
}
var executeChangeSetRequest = new ExecuteChangeSetRequest
{
StackName = stackName,
ChangeSetName = changeSetResponse.Id
};
// Execute the change set.
DateTime timeChangeSetExecuted = DateTime.Now;
try
{
await this.CloudFormationClient.ExecuteChangeSetAsync(executeChangeSetRequest);
if (changeSetType == ChangeSetType.CREATE)
{
this.Logger.WriteLine($"Created CloudFormation stack {stackName}");
}
else
{
this.Logger.WriteLine($"Initiated CloudFormation stack update on {stackName}");
}
}
catch (Exception e)
{
throw new LambdaToolsException($"Error executing CloudFormation change set: {e.Message}", LambdaToolsException.LambdaErrorCode.CloudFormationCreateChangeSet, e);
}
// Wait for the stack to finish unless the user opts out of waiting. The VS Toolkit opts out and
// instead shows the stack view in the IDE, enabling the user to view progress.
var shouldWait = GetBoolValueOrDefault(this.WaitForStackToComplete, LambdaDefinedCommandOptions.ARGUMENT_STACK_WAIT, false);
if (!shouldWait.HasValue || shouldWait.Value)
{
var updatedStack = await WaitStackToCompleteAsync(stackName, timeChangeSetExecuted);
if (updatedStack.StackStatus == StackStatus.CREATE_COMPLETE || updatedStack.StackStatus == StackStatus.UPDATE_COMPLETE)
{
this.Logger.WriteLine($"Stack finished updating with status: {updatedStack.StackStatus}");
// Display the output parameters.
DisplayOutputs(updatedStack);
}
else
{
this.Logger.WriteLine($"Stack update failed with status: {updatedStack.StackStatus} ({updatedStack.StackStatusReason})");
return(false);
}
}
return(true);
}
