Create main.tf

iam_terraform/main.tf

@@ -0,0 +1,97 @@
+#main.tf
+
+# VPC
+resource "aws_vpc" "terra_vpc" {
+  cidr_block       = var.vpc_cidr
+  tags = {
+    Name = "TerraVPC"
+  }
+}
+
+# Internet Gateway
+resource "aws_internet_gateway" "terra_igw" {
+  vpc_id = aws_vpc.terra_vpc.id
+  tags = {
+    Name = "main"
+  }
+}
+
+# Subnets : public
+resource "aws_subnet" "public" {
+  vpc_id = aws_vpc.terra_vpc.id
+  cidr_block = var.subnets_cidr
+  availability_zone = var.azs
+  map_public_ip_on_launch = true
+  tags = {
+    Name = "Subnet"
+  }
+}
+
+# Route table: attach Internet Gateway 
+resource "aws_route_table" "public_rt" {
+  vpc_id = aws_vpc.terra_vpc.id
+  route {
+    cidr_block = "0.0.0.0/0"
+    gateway_id = aws_internet_gateway.terra_igw.id
+  }
+  tags = {
+    Name = "publicRouteTable"
+  }
+}
+
+# Route table association with public subnets
+resource "aws_route_table_association" "a" {
+  subnet_id      = aws_subnet.public.id
+  route_table_id = aws_route_table.public_rt.id
+}
+
+
+resource "aws_security_group" "jenkins_security_group" {
+  name = "sg_jenkins"
+  description = "jenkins security group."
+  vpc_id = aws_vpc.terra_vpc.id
+}
+
+resource "aws_security_group_rule" "ssh_ingress_access" {
+  type = "ingress"
+  from_port = 22
+  to_port = 22
+  protocol = "tcp"
+  cidr_blocks = [ "0.0.0.0/0" ] 
+  security_group_id = "${aws_security_group.jenkins_security_group.id}"
+}
+
+resource "aws_security_group_rule" "egress_access" {
+  type = "egress"
+  from_port = 0
+  to_port = 65535
+  protocol = "tcp"
+  cidr_blocks = [ "0.0.0.0/0" ]
+  security_group_id = "${aws_security_group.jenkins_security_group.id}"
+}
+
+data "aws_ami" "latest-ubuntu" {
+most_recent = true
+
+  filter {
+      name   = "name"
+      values = ["amzn2-ami-kernel-5.10-hvm-2.0.20230418.0-x86_64-gp2"]
+  }
+
+  filter {
+      name   = "virtualization-type"
+      values = ["hvm"]
+  }
+}
+
+resource "aws_instance" "jenkins_instance" {
+  instance_type = "t2.micro"
+  vpc_security_group_ids = [ "${aws_security_group.jenkins_security_group.id}" ]
+  associate_public_ip_address = true
+  tags = {
+    Name = "jenkins-instance"
+  }
+  ami = "${data.aws_ami.latest-ubuntu.id}"
+  availability_zone = "${var.azs}"
+  subnet_id = "${aws_subnet.public.id}"
+}