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minimal_alb.tf
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resource "aws_alb" "mylb" {
# Normal ALB content, options removed for BLOG
subnets = module.vpc.public_subnets
security_groups = [aws_security_group.myapp.id]
}
# Basic https lisener to demo HTTPS certiciate
resource "aws_alb_listener" "mylb_https" {
load_balancer_arn = aws_alb.mylb.arn
certificate_arn = aws_acm_certificate_validation.cert.certificate_arn
port = "443"
protocol = "HTTPS"
# Default action, and other paramters removed for BLOG
default_action {
type = "fixed-response"
fixed_response {
content_type = "text/html"
message_body = "<html><body><h1>Hello World!</h1><p>This would usually be to a target group of web servers.. but this is just a demo to returning a fixed response\n\n</p></body></html>"
status_code = "200"
}
}
}
# Always good practice to redirect http to https
resource "aws_alb_listener" "mylb_http" {
load_balancer_arn = aws_alb.mylb.arn
port = "80"
protocol = "HTTP"
default_action {
type = "redirect"
redirect {
port = "443"
protocol = "HTTPS"
status_code = "HTTP_301"
}
}
}
# Open Security Group for demo
resource "aws_security_group" "myapp" {
vpc_id = module.vpc.vpc_id
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 443
to_port = 443
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
egress {
from_port = "0"
to_port = "0"
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}