Files
A-Team-Security-Infra-Agent…/infra/terraform-vm/lb.tf

144 lines
4.7 KiB
HCL

# -----------------------------------------------------------------------------
# Self-Signed TLS Certificate (fallback when no domain)
# -----------------------------------------------------------------------------
resource "tls_private_key" "lb" {
algorithm = "RSA"
rsa_bits = 2048
}
resource "tls_self_signed_cert" "lb" {
private_key_pem = tls_private_key.lb.private_key_pem
subject {
common_name = var.domain_name != "" ? var.domain_name : "cisagent.local"
organization = "OCI CIS Agent"
}
validity_period_hours = 8760 # 1 year
allowed_uses = [
"key_encipherment",
"digital_signature",
"server_auth",
]
}
# -----------------------------------------------------------------------------
# Load Balancer
# -----------------------------------------------------------------------------
resource "oci_load_balancer_load_balancer" "main" {
compartment_id = var.compartment_ocid
display_name = "cisagent-lb"
shape = "flexible"
freeform_tags = var.freeform_tags
shape_details {
minimum_bandwidth_in_mbps = var.lb_min_bandwidth_mbps
maximum_bandwidth_in_mbps = var.lb_max_bandwidth_mbps
}
subnet_ids = [oci_core_subnet.public.id]
is_private = false
}
# -----------------------------------------------------------------------------
# Certificate
# -----------------------------------------------------------------------------
resource "oci_load_balancer_certificate" "self_signed" {
load_balancer_id = oci_load_balancer_load_balancer.main.id
certificate_name = "cisagent-self-signed"
public_certificate = tls_self_signed_cert.lb.cert_pem
private_key = tls_private_key.lb.private_key_pem
lifecycle {
create_before_destroy = true
}
}
# -----------------------------------------------------------------------------
# Backend Set
# -----------------------------------------------------------------------------
resource "oci_load_balancer_backend_set" "app" {
load_balancer_id = oci_load_balancer_load_balancer.main.id
name = "cisagent-backend-set"
policy = "ROUND_ROBIN"
health_checker {
protocol = "HTTP"
port = 8080
url_path = "/api/health"
interval_ms = 10000
timeout_in_millis = 5000
retries = 3
return_code = 200
}
}
# -----------------------------------------------------------------------------
# Backend
# -----------------------------------------------------------------------------
resource "oci_load_balancer_backend" "app" {
load_balancer_id = oci_load_balancer_load_balancer.main.id
backendset_name = oci_load_balancer_backend_set.app.name
ip_address = oci_core_instance.app.private_ip
port = 8080
}
# -----------------------------------------------------------------------------
# HTTPS Listener (443)
# -----------------------------------------------------------------------------
resource "oci_load_balancer_listener" "https" {
load_balancer_id = oci_load_balancer_load_balancer.main.id
name = "cisagent-https-listener"
default_backend_set_name = oci_load_balancer_backend_set.app.name
port = 443
protocol = "HTTP"
ssl_configuration {
certificate_name = oci_load_balancer_certificate.self_signed.certificate_name
verify_peer_certificate = false
protocols = ["TLSv1.2", "TLSv1.3"]
}
}
# -----------------------------------------------------------------------------
# HTTP → HTTPS Redirect Rule Set
# -----------------------------------------------------------------------------
resource "oci_load_balancer_rule_set" "redirect_http_to_https" {
load_balancer_id = oci_load_balancer_load_balancer.main.id
name = "redirect-http-to-https"
items {
action = "REDIRECT"
conditions {
attribute_name = "PATH"
attribute_value = "/"
operator = "FORCE_LONGEST_PREFIX_MATCH"
}
redirect_uri {
protocol = "HTTPS"
port = 443
host = "{host}"
path = "/{path}"
query = "?{query}"
}
response_code = 301
}
}
# -----------------------------------------------------------------------------
# HTTP Listener (80) with Redirect
# -----------------------------------------------------------------------------
resource "oci_load_balancer_listener" "http" {
load_balancer_id = oci_load_balancer_load_balancer.main.id
name = "cisagent-http-listener"
default_backend_set_name = oci_load_balancer_backend_set.app.name
port = 80
protocol = "HTTP"
rule_set_names = [oci_load_balancer_rule_set.redirect_http_to_https.name]
}