infra/stacks/tuya-bridge/main.tf
Viktor Barzin 5ebd3a81c3 tuya-bridge: liveness probe hits /health so k8s restarts silently-hung bridge
The bridge was down 10h 40m on 2026-04-22 without being restarted —
the liveness probe hit `/` (trivial Flask handler) which passed while
the actual Tuya-cloud call path was stuck. /health now reports Tuya
cloud reachability via a background probe in the app; point both
probes at it. Liveness: 60s grace + 6x30s = 3min of 503s before
restart; readiness: 2x15s = 30s before removal from service.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-23 07:47:41 +00:00

195 lines
4.7 KiB
HCL

variable "tls_secret_name" {
type = string
sensitive = true
}
resource "kubernetes_namespace" "tuya-bridge" {
metadata {
name = "tuya-bridge"
labels = {
"istio-injection" : "disabled"
tier = local.tiers.cluster
}
}
lifecycle {
# KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode ClusterPolicy stamps this label on every namespace
ignore_changes = [metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"]]
}
}
resource "kubernetes_manifest" "external_secret" {
manifest = {
apiVersion = "external-secrets.io/v1beta1"
kind = "ExternalSecret"
metadata = {
name = "tuya-bridge-secrets"
namespace = "tuya-bridge"
}
spec = {
refreshInterval = "15m"
secretStoreRef = {
name = "vault-kv"
kind = "ClusterSecretStore"
}
target = {
name = "tuya-bridge-secrets"
}
dataFrom = [{
extract = {
key = "tuya-bridge"
}
}]
}
}
depends_on = [kubernetes_namespace.tuya-bridge]
}
module "tls_secret" {
source = "../../modules/kubernetes/setup_tls_secret"
namespace = kubernetes_namespace.tuya-bridge.metadata[0].name
tls_secret_name = var.tls_secret_name
}
resource "kubernetes_deployment" "tuya-bridge" {
metadata {
name = "tuya-bridge"
namespace = kubernetes_namespace.tuya-bridge.metadata[0].name
labels = {
app = "tuya-bridge"
tier = local.tiers.cluster
}
annotations = {
"reloader.stakater.com/auto" = "true"
}
}
spec {
replicas = 1
selector {
match_labels = {
app = "tuya-bridge"
}
}
template {
metadata {
labels = {
app = "tuya-bridge"
}
}
spec {
container {
image = "viktorbarzin/tuya_bridge:latest"
name = "tuya-bridge"
port {
container_port = 8080
}
env {
name = "TINYTUYA_API_KEY"
value_from {
secret_key_ref {
name = "tuya-bridge-secrets"
key = "api_key"
}
}
}
env {
name = "TINYTUYA_API_SECRET"
value_from {
secret_key_ref {
name = "tuya-bridge-secrets"
key = "api_secret"
}
}
}
env {
name = "SERVICE_API_KEY" # used for auth the API endpoint
value_from {
secret_key_ref {
name = "tuya-bridge-secrets"
key = "service_secret"
}
}
}
env {
name = "SLACK_URL"
value_from {
secret_key_ref {
name = "tuya-bridge-secrets"
key = "slack_url"
}
}
}
liveness_probe {
http_get {
path = "/health"
port = 8080
}
initial_delay_seconds = 60
period_seconds = 30
timeout_seconds = 5
failure_threshold = 6
}
readiness_probe {
http_get {
path = "/health"
port = 8080
}
initial_delay_seconds = 10
period_seconds = 15
timeout_seconds = 5
failure_threshold = 2
}
resources {
requests = {
cpu = "10m"
memory = "256Mi"
}
limits = {
memory = "256Mi"
}
}
}
}
}
}
lifecycle {
# KYVERNO_LIFECYCLE_V1: Kyverno admission webhook mutates dns_config with ndots=2
ignore_changes = [spec[0].template[0].spec[0].dns_config]
}
}
resource "kubernetes_service" "tuya-bridge" {
metadata {
name = "tuya-bridge"
namespace = kubernetes_namespace.tuya-bridge.metadata[0].name
labels = {
"app" = "tuya-bridge"
}
}
spec {
selector = {
app = "tuya-bridge"
}
port {
name = "http"
port = "80"
target_port = "8080"
}
}
}
module "ingress" {
source = "../../modules/kubernetes/ingress_factory"
dns_type = "proxied"
namespace = kubernetes_namespace.tuya-bridge.metadata[0].name
name = "tuya-bridge"
tls_secret_name = var.tls_secret_name
extra_annotations = {
"gethomepage.dev/enabled" = "true"
"gethomepage.dev/name" = "Tuya Bridge"
"gethomepage.dev/description" = "Smart device bridge"
"gethomepage.dev/icon" = "mdi-home-automation"
"gethomepage.dev/group" = "Smart Home"
"gethomepage.dev/pod-selector" = ""
}
}