diff options
Diffstat (limited to 'terraform')
| -rw-r--r-- | terraform/events.tf | 71 | ||||
| -rw-r--r-- | terraform/lambda.tf | 74 | ||||
| -rw-r--r-- | terraform/s3.tf | 40 | ||||
| -rw-r--r-- | terraform/vars.tf | 10 |
4 files changed, 195 insertions, 0 deletions
diff --git a/terraform/events.tf b/terraform/events.tf new file mode 100644 index 0000000..0196dc3 --- /dev/null +++ b/terraform/events.tf @@ -0,0 +1,71 @@ +resource "aws_cloudwatch_event_rule" "lambda_trigger" { + name = "lambda-scheduled-trigger" + description = "Schedule to trigger the Lambda function" + schedule_expression = "rate(30 minutes)" + +# event_pattern = jsonencode({ +# detail-type = [ +# "AWS Console Sign In via CloudTrail" +# ] +# }) +} + + +resource "aws_cloudwatch_event_target" "extract_lambda_cw_event" { + rule = aws_cloudwatch_event_rule.lambda_trigger.name + target_id = "TargetFunctionV1" + arn = aws_lambda_function.extract_lambda.arn #replaced lambda name placeholder +} + + +resource "aws_lambda_permission" "allow_eventbridge" { + statement_id = "AllowExecutionFromEventBridge" + action = "lambda:InvokeFunction" + function_name = aws_lambda_function.extract_lambda.function_name #replaced lambda name placeholder + principal = "events.amazonaws.com" + source_arn = aws_cloudwatch_event_rule.lambda_trigger.arn +} + + +# below is step function 1 +resource "aws_lambda_permission" "allow_s3_ingestion" { + statement_id = "AllowS3InvokeLambdaTransform" + action = "lambda:InvokeFunction" + function_name = aws_lambda_function.transform_lambda.function_name #replaced lambda name placeholder + principal = "s3.amazonaws.com" + source_arn = aws_s3_bucket.extract_bucket.arn #replaced bucket name placeholder +} + + +resource "aws_s3_bucket_notification" "extract_bucket_notification" { + bucket = aws_s3_bucket.extract_bucket.id #replaced bucket name placeholder + + lambda_function { + events = ["s3:ObjectCreated:*"] + lambda_function_arn = aws_lambda_function.transform_lambda.arn #replaced lambda name placeholder + } + + depends_on = [aws_lambda_permission.allow_s3_ingestion] +} + +###### + +resource "aws_lambda_permission" "allow_s3_transfrom_bucket" { + statement_id = "AllowS3InvokeLambdaTransform" + action = "lambda:InvokeFunction" + function_name = aws_lambda_function.transform_lambda.function_name #replaced lambda name placeholder + principal = "s3.amazonaws.com" + source_arn = aws_s3_bucket.transform_bucket.arn #replaced bucket name placeholder +} + + +resource "aws_s3_bucket_notification" "transform_bucket_notification" { + bucket = aws_s3_bucket.transform_bucket.id #replaced bucket name placeholder + + lambda_function { + events = ["s3:ObjectCreated:*"] + lambda_function_arn = aws_lambda_function.transform_lambda.arn #replaced lambda name placeholder + } + + depends_on = [aws_lambda_permission.allow_s3_transform] +}
\ No newline at end of file diff --git a/terraform/lambda.tf b/terraform/lambda.tf new file mode 100644 index 0000000..09d6697 --- /dev/null +++ b/terraform/lambda.tf @@ -0,0 +1,74 @@ +### EXTRACT LAMBDA SET UP +data "archive_file" "extract_lambda_zip" { + type = "zip" + source_file = "${path.module}/../src/extract_lambda.py" + output_path = "${path.module}/../extract_function.zip" +} + +resource "aws_lambda_function" "extract_lambda" { + function_name = "${var.extract_lambda_name}" + s3_bucket = aws_s3_bucket.lambda_bucket.bucket + s3_key = "extract_lambda/extract_function.zip" + role = aws_iam_role.PLACEHOLDER_extract_lambda_role.arn # << lambda role placehodler + handler = "extract_lambda.lambda_handler" # << check that the function is called lambda handler + runtime = "python3.11" + environment { + variables = { + output = aws_s3_bucket.extract_bucket.bucket + } + } +} + +resource "aws_lambda_permission" "allow_to_write_to_s3_extract_bucket" { + action = "lambda:InvokeFunction" + function_name = aws_lambda_function.extract_lambda.function_name + principal = "s3.amazonaws.com" + source_arn = aws_s3_bucket.extract_bucket.arn +} + + +### TRANSFORM LAMBDA SET UP +data "archive_file" "transform_lambda_zip" { + type = "zip" + source_file = "${path.module}/../src/transform_lambda.py" + output_path = "${path.module}/../transform_function.zip" +} + +resource "aws_lambda_function" "transform_lambda" { + function_name = "${var.transform_lambda_name}" + s3_bucket = aws_s3_bucket.lambda_bucket.bucket + s3_key = "transform_lambda/transform_function.zip" + role = aws_iam_role.PLACEHOLDER_transform_lambda_role.arn # << lambda role placehodler + handler = "transform_lambda.lambda_handler" # << check that the function is called lambda handler + runtime = "python3.11" + environment { + variables = { + output = aws_s3_bucket.transform_bucket.bucket + } + } +} + +resource "aws_lambda_permission" "allow_to_write_to_s3_transform_bucket" { + action = "lambda:InvokeFunction" + function_name = aws_lambda_function.transform_lambda.function_name + principal = "s3.amazonaws.com" + source_arn = aws_s3_bucket.transform_bucket.arn +} + + +### LOAD LAMBDA SET UP +data "archive_file" "load_lambda_zip" { + type = "zip" + source_file = "${path.module}/../src/load_lambda.py" + output_path = "${path.module}/../load_function.zip" +} + +resource "aws_lambda_function" "load_lambda" { + function_name = "${var.load_lambda_name}" + s3_bucket = aws_s3_bucket.lambda_bucket.bucket + s3_key = "load_lambda/load_function.zip" + role = aws_iam_role.PLACEHOLDER_load_lambda_role.arn # << lambda role placehodler + handler = "load_lambda.lambda_handler" # << check that the function is called lambda handler + runtime = "python3.11" +} + diff --git a/terraform/s3.tf b/terraform/s3.tf new file mode 100644 index 0000000..8cb65ef --- /dev/null +++ b/terraform/s3.tf @@ -0,0 +1,40 @@ +### EXTRACT BUCKET SET-UP +resource "aws_s3_bucket" "extract_bucket" { + bucket = "${var.s3_extract_bucket_name}" +} + +resource "aws_s3_object" "extract_lambda_code" { + bucket = aws_s3_bucket.s3_code_bucket_name.bucket + key = "${var.extract_lambda_name}/extract_function.zip" + source = "${path.module}/../extract_function.zip" +} # << can't figure out how this is being used but we seem to need it + +resource "aws_s3_bucket_notification" "extract_bucket_notification" { + bucket = aws_s3_bucket.extract_bucket.id + lambda_function { + lambda_function_arn = aws_lambda_function.extract_lambda.arn + events = ["s3:ObjectCreated:*"] + } + depends_on = [aws_lambda_permission.allow_to_write_to_s3_extract_bucket] +} # << is this the correct permission dependency? + + +### TRANSFORM BUCKET SET-UP +resource "aws_s3_bucket" "transform_bucket" { + bucket = "${var.s3_transform_bucket_name}" +} + +resource "aws_s3_object" "transform_lambda_code" { + bucket = aws_s3_bucket.s3_code_bucket_name.bucket + key = "${var.transform_lambda_name}/transform_function.zip" + source = "${path.module}/../transform_function.zip" +} # << can't figure out how this is being used but we seem to need it + +resource "aws_s3_bucket_notification" "transform_bucket_notification" { + bucket = aws_s3_bucket.transform_bucket.id + lambda_function { + lambda_function_arn = aws_lambda_function.transform_lambda.arn + events = ["s3:ObjectCreated:*"] + } + depends_on = [aws_lambda_permission.allow_to_write_to_s3_transform_bucket] +} # << is this the correct permission dependency? diff --git a/terraform/vars.tf b/terraform/vars.tf index 166f2c5..cc9348a 100644 --- a/terraform/vars.tf +++ b/terraform/vars.tf @@ -8,6 +8,11 @@ variable "s3_transform_bucket_name" { default = "transform-bucket" } +variable "s3_code_bucket_name" { + type = string + default = "lambda-bucket" +} + variable "extract_lambda_name" { type = string default = "extract-lambda" @@ -18,6 +23,11 @@ variable "transform_lambda_name" { default = "transform-lambda" } +variable "load_lambda_name" { + type = string + default = "load-lambda" +} + data "aws_caller_identity" "current" {} data "aws_region" "current" {}
\ No newline at end of file |