Listing 1: Health Check als Shell-Skript

resource "aws_instance" "<Name der Ressource>" {
# ... Andere Konfigurationen
provisioner "remote-exec" {
inline = [
"echo 'Health Check: Running...'",
"if curl -s http://localhost:8080/health | grep 'OK'; then exit 0; else exit 1; fi"
]
connection {
type = "ssh"
user = "ubuntu"
private_key = file("/path/to/private_key")
host = self.public_ip
}
}
lifecycle {
create_before_destroy = true
}
}


Listing 2: Einen Server auf AWS einrichten

resource "aws_instance" "blue" {
ami = "ami-0c55b159cbfafe1f0"
instance_type = "t2.micro"
subnet_id = aws_subnet.main.id
security_groups = [aws_security_group.
main.name]
tags = {
Name = "blue-green-app-blue"
}
// ... Andere Konfigurationen
}
resource "aws_elb" "main" {
name = "blue-green-app-elb"
// ... Andere Konfigurationen
instances = [aws_instance.blue.id]
}
```


Listing 3: Weitere Ressourcen in AWS bereitstellen

resource "aws_instance" "green" {
ami = "ami-0c55b159cbfafe1f0"
instance_type = "t2.micro"
subnet_id = aws_subnet.main.id
security_groups =
[aws_security_group.main.name]
tags = {
Name = "blue-green-app-green"
}
// ... Andere Konfigurationen
}
```