terraform-day2ops/sg.tf at main · kpersohn/terraform-day2ops · GitHub

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resource "aws_security_group" "alb" {
  name        = "${local.env_name}-alb"
  description = "Allow HTTP from all"
  vpc_id      = aws_vpc.main.id

  ingress {
    description      = "HTTP from all"
    from_port        = 80
    to_port          = 80
    protocol         = "tcp"
    cidr_blocks      = ["0.0.0.0/0"]
    ipv6_cidr_blocks = ["::/0"]
  }

  egress {
    from_port        = 0
    to_port          = 0
    protocol         = "-1"
    cidr_blocks      = ["0.0.0.0/0"]
    ipv6_cidr_blocks = ["::/0"]
  }

  tags = {
    Name = "${local.env_name}-alb"
  }
}


resource "aws_security_group" "instance" {
  name        = "${local.env_name}-instance"
  description = "Allow HTT from ALB and SSH from all"
  vpc_id      = aws_vpc.main.id

  ingress {
    description      = "SSH from all"
    from_port        = 22
    to_port          = 22
    protocol         = "tcp"
    cidr_blocks      = ["0.0.0.0/0"]
    ipv6_cidr_blocks = ["::/0"]
  }

  ingress {
    description     = "HTTP from ALB"
    from_port       = 80
    to_port         = 80
    protocol        = "tcp"
    security_groups = [aws_security_group.alb.id]
    self            = true
  }

  egress {
    from_port        = 0
    to_port          = 0
    protocol         = "-1"
    cidr_blocks      = ["0.0.0.0/0"]
    ipv6_cidr_blocks = ["::/0"]
  }

  tags = {
    Name = "${local.env_name}-instance"
  }
}