dependencies

.gitignore

@@ -3,7 +3,7 @@
 .terraform.lock.hcl
 
 # =========================================
-/.env/
+/venv/
 /volume/
 
 **/.terraform/

2-features/dependencies/.gitignore

@@ -1,3 +1,2 @@
 providers.tf
 versions.tf
-dependencies.png

2-features/dependencies/README.md

@@ -1,16 +1,38 @@
 # Dependencies
 
+- backend-app depends on mysql, redis, and vpc
+- frontend-app depends on backend-app and vpc
+- mysql depends on vpc
+- redis depends on vpc
+- vpc has no dependencies
+
 ```bash
 terragrunt graph-dependencies | dot -Tpng > dependencies.png
+```
+
+![img.png](dependencies.png)
+
+------------------------------------
+
+## Run it
+
+```bash
+export TERRAGRUNT_PARALLELISM=4
+
 terragrunt run-all plan
 terragrunt run-all apply
-terragrunt run-all destroy
 ```
 
-- The module 1 has no dependency
-- The module 2 depends on module 1
-- The module 3 must be build after module 1 but do not need its outputs
-- The module 4 depends on module 1, 2 and 3
+<br/>
+
+#### Includes backend and the ones it depends on
 
+```bash
+terragrunt run-all \
+  --terragrunt-include-external-dependencies \
+  --terragrunt-working-dir ./backend \
+  apply
+```
 
+<br/>
 

2-features/dependencies/backend/main.tf

@@ -0,0 +1,30 @@
+
+
+variable "vpc_name" {
+  type = string
+  default = "my-vpc-1"
+}
+variable "redis_arn" {
+  type = string
+}
+variable "mysql_arn" {
+  type = string
+}
+
+
+resource aws_s3_bucket "main" {
+  bucket = join("-", [var.vpc_name, "backend"])
+}
+
+output "arn" {
+  value = aws_s3_bucket.main.arn
+}
+output "name" {
+  value = aws_s3_bucket.main.bucket
+}
+output "redis_arn" {
+  value = var.redis_arn
+}
+output "mysql_arn" {
+  value = var.mysql_arn
+}

2-features/dependencies/backend/terragrunt.hcl

@@ -0,0 +1,32 @@
+
+# ignore for now
+include "root" {
+  path = find_in_parent_folders()
+}
+
+
+dependency "vpc" {
+  config_path = "../vpc"
+  mock_outputs = {
+    name = ""
+  }
+}
+dependency "redis" {
+  config_path = "../redis"
+  mock_outputs = {
+    arn = ""
+  }
+}
+dependency "mysql" {
+  config_path = "../mysql"
+  mock_outputs = {
+    arn = ""
+  }
+}
+
+inputs = {
+  vpc_name = dependency.vpc.outputs.name
+  redis_arn = dependency.redis.outputs.arn
+  mysql_arn = dependency.mysql.outputs.arn
+}
+

2-features/dependencies/frontend/main.tf

@@ -0,0 +1,14 @@
+
+
+
+
+resource aws_s3_bucket "main" {
+  bucket = "frontend"
+}
+
+output "arn" {
+  value = aws_s3_bucket.main.arn
+}
+output "name" {
+  value = aws_s3_bucket.main.bucket
+}

2-features/dependencies/frontend/terragrunt.hcl

@@ -0,0 +1,14 @@
+
+# ignore for now
+include "root" {
+  path = find_in_parent_folders()
+}
+
+dependencies {
+  paths = ["../vpc", "../backend"]
+}
+
+
+
+
+

2-features/dependencies/mysql/main.tf

@@ -0,0 +1,18 @@
+
+
+
+variable "vpc_name" {
+  type = string
+  default = "my-vpc-1"
+}
+
+resource aws_s3_bucket "main" {
+  bucket = join("-", [var.vpc_name, "mysql"])
+}
+
+output "arn" {
+  value = aws_s3_bucket.main.arn
+}
+output "name" {
+  value = aws_s3_bucket.main.bucket
+}

2-features/dependencies/mysql/terragrunt.hcl

@@ -0,0 +1,21 @@
+
+# ignore for now
+include "root" {
+  path = find_in_parent_folders()
+}
+
+
+dependency "vpc" {
+  config_path = "../vpc"
+  mock_outputs = {
+    arn = ""
+    name = ""
+  }
+}
+
+inputs = {
+  vpc_name = dependency.vpc.outputs.name
+}
+
+
+

2-features/dependencies/redis/main.tf

@@ -0,0 +1,17 @@
+
+
+variable "vpc_name" {
+  type = string
+  default = "my-vpc-1"
+}
+
+resource aws_s3_bucket "main" {
+  bucket = join("-", [var.vpc_name, "redis"])
+}
+
+output "arn" {
+  value = aws_s3_bucket.main.arn
+}
+output "name" {
+  value = aws_s3_bucket.main.bucket
+}

2-features/dependencies/redis/terragrunt.hcl

@@ -0,0 +1,21 @@
+
+# ignore for now
+include "root" {
+  path = find_in_parent_folders()
+}
+
+
+dependency "vpc" {
+  config_path = "../vpc"
+  mock_outputs = {
+    arn = ""
+    name = ""
+  }
+}
+
+inputs = {
+  vpc_name = dependency.vpc.outputs.name
+}
+
+
+

2-features/dependencies/vpc/main.tf

@@ -0,0 +1,17 @@
+
+
+variable "name" {
+  type = string
+  default = "my-vpc-1"
+}
+
+resource aws_s3_bucket "main" {
+  bucket = var.name
+}
+
+output "arn" {
+  value = aws_s3_bucket.main.arn
+}
+output "name" {
+  value = aws_s3_bucket.main.bucket
+}

2-features/dependencies/vpc/terragrunt.hcl

@@ -0,0 +1,13 @@
+
+# ignore for now
+include "root" {
+  path = find_in_parent_folders()
+}
+
+
+inputs = {
+  name = "vpc1"
+}
+
+
+

2-features/inheritance/README.md

@@ -3,3 +3,15 @@
 ```bash
 terragrunt run-all plan
 ```
+
+
+<br/>
+
+#### Includes those that include a file
+
+```bash
+# Includes the ones module-2 depends on
+terragrunt run-all \
+  --terragrunt-modules-that-include ./prod/terragrunt.hcl \
+  apply
+```

2-features/inheritance/prod/module-1/terragrunt.hcl

@@ -1,6 +1,6 @@
 
 
-include "env" {
+include "root" {
   path = find_in_parent_folders("terragrunt.hcl")
 }
 

2-features/dependencies/module-2/main.tf → 2-features/s3/module-1/main.tf

@@ -12,3 +12,6 @@ resource aws_s3_bucket "main" {
 output "s3_bucket_arn" {
   value = aws_s3_bucket.main.arn
 }
+output "s3_bucket_name" {
+  value = aws_s3_bucket.main.bucket
+}

2-features/s3/module-1/providers.tf

@@ -0,0 +1,40 @@
+# Generated by Terragrunt. Sig: nIlQXj57tbuaRZEa
+provider "aws" {
+  access_key = "test"
+  secret_key = "test"
+  region     = "us-east-1"
+
+  # only required for non virtual hosted-style endpoint use case.
+  # https://registry.terraform.io/providers/hashicorp/aws/latest/docs#s3_use_path_style
+  s3_use_path_style           = true
+  skip_credentials_validation = true
+  skip_metadata_api_check     = true
+  skip_requesting_account_id  = true
+
+
+  endpoints {
+    apigateway     = "http://localhost:4566"
+    apigatewayv2   = "http://localhost:4566"
+    cloudformation = "http://localhost:4566"
+    cloudwatch     = "http://localhost:4566"
+    dynamodb       = "http://localhost:4566"
+    ec2            = "http://localhost:4566"
+    es             = "http://localhost:4566"
+    elasticache    = "http://localhost:4566"
+    firehose       = "http://localhost:4566"
+    iam            = "http://localhost:4566"
+    kinesis        = "http://localhost:4566"
+    lambda         = "http://localhost:4566"
+    rds            = "http://localhost:4566"
+    redshift       = "http://localhost:4566"
+    route53        = "http://localhost:4566"
+    s3             = "http://s3.localhost.localstack.cloud:4566"
+    secretsmanager = "http://localhost:4566"
+    ses            = "http://localhost:4566"
+    sns            = "http://localhost:4566"
+    sqs            = "http://localhost:4566"
+    ssm            = "http://localhost:4566"
+    stepfunctions  = "http://localhost:4566"
+    sts            = "http://localhost:4566"
+  }
+}

2-features/s3/module-1/versions.tf

@@ -0,0 +1,10 @@
+# Generated by Terragrunt. Sig: nIlQXj57tbuaRZEa
+terraform {
+  required_version = ">= 0.12.0"
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = ">= 4.52.0"
+    }
+  }
+}

2-features/s3/module-2/providers.tf

@@ -0,0 +1,40 @@
+# Generated by Terragrunt. Sig: nIlQXj57tbuaRZEa
+provider "aws" {
+  access_key = "test"
+  secret_key = "test"
+  region     = "us-east-1"
+
+  # only required for non virtual hosted-style endpoint use case.
+  # https://registry.terraform.io/providers/hashicorp/aws/latest/docs#s3_use_path_style
+  s3_use_path_style           = true
+  skip_credentials_validation = true
+  skip_metadata_api_check     = true
+  skip_requesting_account_id  = true
+
+
+  endpoints {
+    apigateway     = "http://localhost:4566"
+    apigatewayv2   = "http://localhost:4566"
+    cloudformation = "http://localhost:4566"
+    cloudwatch     = "http://localhost:4566"
+    dynamodb       = "http://localhost:4566"
+    ec2            = "http://localhost:4566"
+    es             = "http://localhost:4566"
+    elasticache    = "http://localhost:4566"
+    firehose       = "http://localhost:4566"
+    iam            = "http://localhost:4566"
+    kinesis        = "http://localhost:4566"
+    lambda         = "http://localhost:4566"
+    rds            = "http://localhost:4566"
+    redshift       = "http://localhost:4566"
+    route53        = "http://localhost:4566"
+    s3             = "http://s3.localhost.localstack.cloud:4566"
+    secretsmanager = "http://localhost:4566"
+    ses            = "http://localhost:4566"
+    sns            = "http://localhost:4566"
+    sqs            = "http://localhost:4566"
+    ssm            = "http://localhost:4566"
+    stepfunctions  = "http://localhost:4566"
+    sts            = "http://localhost:4566"
+  }
+}

2-features/dependencies/module-2/terragrunt.hcl → 2-features/s3/module-2/terragrunt.hcl

@@ -13,7 +13,7 @@ dependency "module_1" {
 }
 
 inputs = {
-  bucket_name = join("-", [dependency.module_1.outputs.s3_bucket_arn, "-logs"])
+  bucket_name = join("-", [dependency.module_1.outputs.s3_bucket_name, "logs"])
 }