finish

atelier3/.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/terraform
+# Edit at https://www.toptal.com/developers/gitignore?templates=terraform
+
+### Terraform ###
+# Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# Crash log files
+crash.log
+crash.*.log
+
+# Exclude all .tfvars files, which are likely to contain sensitive data, such as
+# password, private keys, and other secrets. These should not be part of version
+# control as they are data points which are potentially sensitive and subject
+# to change depending on the environment.
+*.tfvars
+*.tfvars.json
+
+# Ignore override files as they are usually used to override resources locally and so
+# are not checked in
+override.tf
+override.tf.json
+*_override.tf
+*_override.tf.json
+
+# Include override files you do wish to add to version control using negated pattern
+# !example_override.tf
+
+# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
+# example: *tfplan*
+
+# Ignore CLI configuration files
+.terraformrc
+terraform.rc
+
+# End of https://www.toptal.com/developers/gitignore/api/terraform

atelier3/.terraform.lock.hcl

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+# This file is maintained automatically by "terraform init".
+# Manual edits may be lost in future updates.
+
+provider "registry.terraform.io/hashicorp/aws" {
+  version     = "6.38.0"
+  constraints = "6.38.0"
+  hashes = [
+    "h1:IMf41BcW9huOeVcrt6XjQqadYR2xD8zkUpGLLERJ4NM=",
+    "zh:143f118ae71059a7a7026c6b950da23fef04a06e2362ffa688bef75e43e869ed",
+    "zh:29ee220a017306effd877e1280f8b2934dc957e16e0e72ca0222e5514d0db522",
+    "zh:3a31baabf7aea7aa7669f5a3d76f3445e0e6cce5e9aea0279992765c0df12aee",
+    "zh:4c1908e62040dbc9901d4426ffb253f53e5dae9e3e1a9125311291ee265c8d8c",
+    "zh:550f4789f5f5b00e16118d4c17770be3ef4535d6b6928af1cf91ebd30f2c263b",
+    "zh:6537b7b70bf2c127771b0b84e4b726c834d10666b6104f017edae50c67ebae37",
+    "zh:9b12af85486a96aedd8d7984b0ff811a4b42e3d88dad1a3fb4c0b580d04fa425",
+    "zh:af2f9cea0c8bdf5b2a2391f2d179a946c117196f7c829b919673cae3b71d2943",
+    "zh:c53ffa685381aa4e73158fd9f529239f95938dea330e7aca0b32e7b2a1210432",
+    "zh:d0995e1d64a7ec8bbc79fc3fbec3749f989e07f211a318705c37cd6a7c7d19e4",
+    "zh:d2348ffcffc1282983d7a5838dd5d61f372152fe6c0d10868cd6473352318750",
+    "zh:e449312efb73e4747165e689302a68a1df8ba5755e7f59097069acf82c94f011",
+    "zh:ec3a538d264ef79380e56fdf107ffb6c0446814f07fc5890c36855fe1e03196b",
+    "zh:f441e69699b22e32c96a8cdd3bbe694ed302c0dcfe867cd9bd683a16df362714",
+    "zh:f6f8eaa605ff902234d7e9bdab4fda977185fce14f8576f7b622c914c7d98008",
+  ]
+}

atelier3/main.tf

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+locals {
+    company = "ENI"
+    trigram =  lower(var.trigram)
+}
+
+module "network" {
+  source = "./modules/network"
+
+  vpc_name = "${local.trigram}-main-vpc"
+  vpc_cidr_block = "10.1.0.0/16"
+  common_tags = var.common_tags
+  subnets = var.subnets
+}
+
+data "aws_ami" "ami" {
+  for_each = var.images
+
+  most_recent = true
+
+  filter {
+    name   = "name"
+    values = [each.value.name_filter]
+  }
+
+  filter {
+    name   = "virtualization-type"
+    values = ["hvm"]
+  }
+
+  owners = [each.value.owner]
+}
+
+resource "aws_network_interface" "example" {
+  for_each = var.instances
+
+  subnet_id   = module.network.subnets_full[each.value.subnet].id
+}
+
+resource "aws_ebs_volume" "vol" {
+  for_each = var.instances
+
+  size = 10
+  availability_zone   = aws_instance.instance[each.key].availability_zone
+}
+
+resource "aws_instance" "instance" {
+  for_each = var.instances
+
+  ami           = data.aws_ami.ami[each.value.image].id
+  instance_type = each.value.instance_type
+    availability_zone   = module.network.subnets_full[each.value.subnet].availability_zone
+
+
+  tags = merge(var.common_tags, {
+    Name = "${local.trigram}-${each.key}"
+  })
+}
+
+resource "aws_volume_attachment" "ebs_att" {
+  for_each = var.instances
+
+  device_name = "/dev/sdh"
+  volume_id   = aws_ebs_volume.vol[each.key].id
+  instance_id = aws_instance.instance[each.key].id
+}

atelier3/modules/network/main.tf

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+resource "aws_vpc" "main_vpc" {
+  cidr_block = var.vpc_cidr_block
+
+  tags = merge(var.common_tags, {
+    Name = var.vpc_name
+  })
+}
+
+data "aws_availability_zones" "az" {
+  filter {
+    name   = "opt-in-status"
+    values = ["opt-in-not-required"]
+  }
+}
+
+resource "aws_subnet" "subnet" {
+  for_each = var.subnets
+
+  vpc_id     = aws_vpc.main_vpc.id
+  cidr_block = each.value.cidr
+  availability_zone   = element(data.aws_availability_zones.az.names, each.value.az_id)
+
+  tags = merge(var.common_tags, {
+    Name = "${var.subnet_name_prefix}-${each.key}"
+  })
+}

atelier3/modules/network/outputs.tf

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+output "subnet_ids" {
+    description = "Subnet IDs"
+    value = { for k, v in aws_subnet.subnet : k => v.id }
+}
+
+output "subnet_az" {
+    description = "Subnet AZs"
+    value = { for k, v in aws_subnet.subnet : k => v.availability_zone }
+}
+
+output "subnets" {
+    description = "Subnets data"
+    value = { for k, v in aws_subnet.subnet : k => {
+        id = v.id,
+        az = v.availability_zone
+    }}
+}
+
+output "subnets_full" {
+    description = "Subnets all data"
+    value = aws_subnet.subnet
+}

atelier3/modules/network/variables.tf

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+variable "vpc_name" {
+  type = string
+  description = "VPC name"
+}
+
+variable "vpc_cidr_block" {
+    description = "VPC CIDR block"
+    type = string
+    default = "10.0.0.0/16"
+}
+
+variable "subnet_name_prefix" {
+    description = "Subnet name prefix"
+    type = string
+    default = "sub"
+}
+
+variable "common_tags" {
+    type = map(string)
+    description = "Default common tags"
+    default = {
+      Owner = "user"
+      CourseId = "my_course"
+    }
+}
+
+variable "subnets" {
+    description = "Subnets to create"
+    type = map(map(string))
+    default = {}
+}

atelier3/outputs.tf

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+output "instance_ip" {
+    description = "Instance private IP address"
+    value = { for k, v in aws_instance.instance : k => v.private_ip }
+}

atelier3/providers.tf

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+provider "aws" {
+  region = var.aws_region
+}

atelier3/terraform.tf

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+terraform {
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "6.38.0"
+    }
+  }
+}

atelier3/variables.tf

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+variable "aws_region" {
+    type = string
+    description = "AWS region"
+    default = "eu-west-3"
+}
+
+variable "vpc_cidr_block" {
+    description = "VPC CIDR block"
+    type = string
+    default = "10.0.0.0/16"
+}
+
+
+variable "subnets" {
+    description = "Subnets to create"
+    type = map(map(string))
+    default = {}
+}
+
+variable "images" {
+    description = "Images to use with instances"
+    type = map(map(string))
+    default = {
+        ubuntu = {
+            name_filter = "ubuntu/images/hvm-ssd/ubuntu-jammy-22.04-amd64-server-*",
+            owner = "099720109477"
+        },
+        amazon = {
+            name_filter = "al2023-ami-*-kernel-6.1-x86_64"
+            owner = "137112412989"
+        }
+    }
+}
+
+variable "instances" {
+    description = "AWS instance type for app"
+    type = map(map(string))
+    default = {
+        demo01 = {
+            instance_type = "t3.micro",
+            image = "ubuntu",
+            subnet = "sub01"
+        },
+        demo02 = {
+            instance_type = "t3.micro",
+            image = "amazon",
+            subnet = "sub02"
+        }
+    }
+}
+
+variable "common_tags" {
+    type = map(string)
+    description = "Default common tags"
+    default = {
+      Owner = "user"
+      CourseId = "my_course"
+    }
+}
+
+variable "trigram" {
+    type = string
+    description = "User trigram"
+}