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https://github.com/winebarrel/terraform-provider-lambdazip

Terraform provider creating zip file for AWS Lambda.
https://github.com/winebarrel/terraform-provider-lambdazip

lambda terraform

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Terraform provider creating zip file for AWS Lambda.

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# terraform-provider-lambdazip

[![CI](https://github.com/winebarrel/terraform-provider-lambdazip/actions/workflows/ci.yml/badge.svg)](https://github.com/winebarrel/terraform-provider-lambdazip/actions/workflows/ci.yml)
[![terraform docs](https://img.shields.io/badge/terraform-docs-%35835CC?logo=terraform)](https://registry.terraform.io/providers/winebarrel/lambdazip/latest/docs)

Terraform provider creating zip file for AWS Lambda.

Update `base64sha256` attribute only when `triggers` attribute is updated.

## Usage

```
./
|-- lambda/
| |-- index.js
| |-- node_modules/
| |-- package-lock.json
| `-- package.json
`-- main.tf
```

```tf
terraform {
required_providers {
lambdazip = {
source = "winebarrel/lambdazip"
version = ">= 0.6.1"
}
}
}

data "lambdazip_files_sha256" "triggers" {
files = [
"lambda/*.js",
"lambda/*.json",
]
}

resource "lambdazip_file" "app" {
base_dir = "lambda"
sources = ["**"]
excludes = [".env"]
output = "lambda.zip"
before_create = "npm i"
triggers = data.lambdazip_files_sha256.triggers.map

# triggers = {
# for i in [
# "lambda/index.js",
# "lambda/package.json",
# "lambda/package-lock.json",
# ] : i => filesha256(i)
# }
}

resource "aws_lambda_function" "app" {
filename = lambdazip_file.app.output
function_name = "my_func"
role = aws_iam_role.lambda_app_role.arn
handler = "index.handler"
source_code_hash = lambdazip_file.app.base64sha256
runtime = "nodejs20.x"
}

resource "aws_iam_role" "lambda_app_role" {
name = "lambda-app-role"

assume_role_policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Effect = "Allow"
Principal = {
Service = "lambda.amazonaws.com"
}
Action = "sts:AssumeRole"
}
]
})
}

resource "aws_iam_role_policy_attachment" "lambda_app_role" {
role = aws_iam_role.lambda_app_role.name
policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
}
```

### Golang example

```tf
data "lambdazip_files_sha256" "triggers" {
files = ["lambda/*.go", "lambda/go.mod", "lambda/go.sum"]
}

resource "lambdazip_file" "app" {
base_dir = "lambda"
sources = ["bootstrap"]
output = "lambda.zip"
before_create = "GOOS=linux GOARCH=amd64 go build -o bootstrap main.go"
triggers = data.lambdazip_files_sha256.triggers.map
}

resource "aws_lambda_function" "app" {
filename = lambdazip_file.app.output
function_name = "my_func"
role = aws_iam_role.lambda_app_role.arn
handler = "my-handler"
source_code_hash = lambdazip_file.app.base64sha256
runtime = "provided.al2023"
}
```

> [!note]
> Go v1.21 or higher recommended.
> see https://go.dev/blog/rebuild

## Run locally for development

```sh
cp lambdazip.tf.sample lambdazip.tf
make tf-plan
make tf-apply
```