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security-main.tf
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# Define the security group for Web subnet
resource "aws_security_group" "aws-web-sg" {
name = "${var.app_name}-${var.app_environment}-web-sg"
description = "Access to Public Web Subnet"
# http protocol
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
# https protocol
ingress {
from_port = 443
to_port = 443
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
egress {
protocol = -1
from_port = 0
to_port = 0
cidr_blocks = ["0.0.0.0/0"]
}
vpc_id = aws_vpc.aws-vpc.id
tags = {
Name = "${var.app_name}-${var.app_environment}-web-sg"
Environment = var.app_environment
}
}
#----------------------------------------
#Define the App security group
resource "aws_security_group" "aws-app-sg" {
name = "${var.app_name}-${var.app_environment}-app-sg"
description = "Access to App Subnet"
# SSH access from bastion
ingress {
from_port = 22
to_port = 22
protocol = "tcp"
cidr_blocks = [var.aws_web_subnet_cidr]
}
# RDP access from bastion
ingress {
from_port = 3389
to_port = 3389
protocol = "tcp"
cidr_blocks = [var.aws_web_subnet_cidr]
}
# HTTP access from web public subnet
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = [var.aws_web_subnet_cidr]
}
# HTTPS access from web public subnet
ingress {
from_port = 443
to_port = 443
protocol = "tcp"
cidr_blocks = [var.aws_web_subnet_cidr]
}
# access from app private subnet
ingress {
protocol = -1
from_port = 0
to_port = 0
cidr_blocks = [var.aws_app_subnet_cidr]
}
# access from db private subnet
ingress {
protocol = -1
from_port = 0
to_port = 0
cidr_blocks = [var.aws_db_subnet_cidr]
}
egress {
protocol = -1
from_port = 0
to_port = 0
cidr_blocks = ["0.0.0.0/0"]
}
vpc_id = aws_vpc.aws-vpc.id
tags = {
Name = "${var.app_name}-${var.app_environment}-app-sg"
Environment = var.app_environment
}
}
#----------------------------------------
#Define the DB security group
resource "aws_security_group" "aws-db-sg" {
name = "${var.app_name}-${var.app_environment}-db-sg"
description = "Access to Database Subnet"
# SSH access from bastion
ingress {
from_port = 22
to_port = 22
protocol = "tcp"
cidr_blocks = [var.aws_web_subnet_cidr]
}
# RDP access from bastion
ingress {
from_port = 3389
to_port = 3389
protocol = "tcp"
cidr_blocks = [var.aws_web_subnet_cidr]
}
# access from app private subnet
ingress {
protocol = -1
from_port = 0
to_port = 0
cidr_blocks = [var.aws_app_subnet_cidr]
}
# access from db private subnet
ingress {
protocol = -1
from_port = 0
to_port = 0
cidr_blocks = [var.aws_db_subnet_cidr]
}
egress {
protocol = -1
from_port = 0
to_port = 0
cidr_blocks = ["0.0.0.0/0"]
}
vpc_id = aws_vpc.aws-vpc.id
tags = {
Name = "${var.app_name}-${var.app_environment}-db-sg"
Environment = var.app_environment
}
}