Created
June 6, 2020 20:45
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Terraform for Lambda func that reads Kinesis and writes to DynamoDB
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# AWS | |
provider "aws" { | |
region = "us-west-2" | |
profile = "myAWSProfile" | |
} | |
# IAM | |
## IAM Role | |
resource "aws_iam_role" "iam_for_lambda" { | |
name = "lambda-basic-execution" | |
assume_role_policy = <<EOF | |
{ | |
"Version": "2012-10-17", | |
"Statement": [ | |
{ | |
"Action": "sts:AssumeRole", | |
"Principal": { | |
"Service": "lambda.amazonaws.com" | |
}, | |
"Effect": "Allow", | |
"Sid": "" | |
} | |
] | |
} | |
EOF | |
} | |
# Lambda | |
## Lambda Function | |
resource "aws_lambda_function" "lambda_func" { | |
function_name = "analytics-ingest" | |
filename = "function.zip" | |
role = aws_iam_role.iam_for_lambda.arn | |
handler = "main" | |
runtime = "go1.x" | |
} | |
## Lambda Basic Exectution Role | |
resource "aws_iam_role_policy_attachment" "basic_execution" { | |
role = aws_iam_role.iam_for_lambda.id | |
policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole" | |
} | |
## Lambda Kinesis Policy | |
resource "aws_iam_role_policy_attachment" "kinesis_execution" { | |
role = aws_iam_role.iam_for_lambda.id | |
policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaKinesisExecutionRole" | |
} | |
## Lambda DynamoDB Policy | |
resource "aws_iam_role_policy_attachment" "dynamodb_execution" { | |
role = aws_iam_role.iam_for_lambda.id | |
policy_arn = "arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess" | |
} | |
## Lambda Kinesis Source Mapping | |
resource "aws_lambda_event_source_mapping" "kinesis_lambda_event_mapping" { | |
batch_size = 100 | |
enabled = true | |
event_source_arn = aws_kinesis_stream.kinesis_stream.arn | |
function_name = aws_lambda_function.lambda_func.arn | |
starting_position = "TRIM_HORIZON" | |
} | |
# Kinesis | |
## Kinesis Streams | |
resource "aws_kinesis_stream" "kinesis_stream" { | |
name = "analytics-stream" | |
shard_count = 1 | |
retention_period = 24 | |
shard_level_metrics = [ | |
"IncomingBytes", | |
"OutgoingBytes" | |
] | |
} | |
# DynamoDB | |
## DynamoDB Table | |
resource "aws_dynamodb_table" "dynamodb_table" { | |
name = "analytics" | |
billing_mode = "PAY_PER_REQUEST" | |
hash_key = "pk" | |
range_key = "sk" | |
attribute { | |
name = "pk" | |
type = "S" | |
} | |
attribute { | |
name = "sk" | |
type = "S" | |
} | |
} |
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