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[reverse-proxy] ha-sofia per-service retry + ServersTransport

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Adds a ha-sofia-retry Middleware (attempts=3, initialInterval=100ms)
and ha-sofia-transport ServersTransport (dialTimeout=500ms) wired into
ha-sofia + music-assistant ingresses. Absorbs the 67-156ms connect/DNS
stalls that were surfacing as 18 x 502s/day without disturbing the
global 2-attempt retry or Immich's 60s dialTimeout. depends_on the new
manifests to avoid the dangling-reference pattern from the 2026-04-17
Traefik P0.

Closes: code-rd1
This commit is contained in:
Viktor Barzin 2026-04-19 14:07:07 +00:00
parent 947f1bd75d
commit 2431c6d5fe
1 changed files with 78 additions and 20 deletions
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98
stacks/reverse-proxy/modules/reverse_proxy/main.tf
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@ -301,43 +301,101 @@ resource "kubernetes_manifest" "ha_sofia_rate_limit" {
}
}
# Per-service retry — bumps default (attempts=2) to 3 so transient DNS/connect
# stalls on the ha-sofia.viktorbarzin.lan ExternalName are absorbed before
# surfacing a 502. Drives bd code-rd1 Phase 2.2.
resource "kubernetes_manifest" "ha_sofia_retry" {
manifest = {
apiVersion = "traefik.io/v1alpha1"
kind = "Middleware"
metadata = {
name = "ha-sofia-retry"
namespace = "reverse-proxy"
}
spec = {
retry = {
attempts = 3
initialInterval = "100ms"
}
}
}
}
# Per-service ServersTransport — overrides the global 60s dialTimeout
# (set for Immich) with 500ms so a stall fails fast and the retry middleware
# kicks in instead of blocking the connection for seconds. Drives bd
# code-rd1 Phase 2.3.
resource "kubernetes_manifest" "ha_sofia_transport" {
manifest = {
apiVersion = "traefik.io/v1alpha1"
kind = "ServersTransport"
metadata = {
name = "ha-sofia-transport"
namespace = "reverse-proxy"
}
spec = {
forwardingTimeouts = {
dialTimeout = "500ms"
responseHeaderTimeout = "30s"
idleConnTimeout = "90s"
}
}
}
}
module "ha-sofia" {
source = "./factory"
dns_type = "non-proxied"
name = "ha-sofia"
external_name = "ha-sofia.viktorbarzin.lan"
port = 8123
tls_secret_name = var.tls_secret_name
depends_on = [kubernetes_namespace.reverse-proxy]
source = "./factory"
dns_type = "non-proxied"
name = "ha-sofia"
external_name = "ha-sofia.viktorbarzin.lan"
port = 8123
tls_secret_name = var.tls_secret_name
# depends_on on the retry/transport manifests avoids a dangling-reference
# window that would 404 ha-sofia traffic (memory 768: 2026-04-17 P0 outage).
depends_on = [
kubernetes_namespace.reverse-proxy,
kubernetes_manifest.ha_sofia_retry,
kubernetes_manifest.ha_sofia_transport,
]
protected = false
skip_global_rate_limit = true
extra_middlewares = [
"reverse-proxy-ha-sofia-rate-limit@kubernetescrd",
"reverse-proxy-ha-sofia-retry@kubernetescrd",
]
extra_annotations = {
"gethomepage.dev/enabled" = "true"
"gethomepage.dev/name" = "Home Assistant Sofia"
"gethomepage.dev/description" = "Smart home hub"
"gethomepage.dev/icon" = "home-assistant.png"
"gethomepage.dev/group" = "Smart Home"
"gethomepage.dev/pod-selector" = ""
"gethomepage.dev/enabled" = "true"
"gethomepage.dev/name" = "Home Assistant Sofia"
"gethomepage.dev/description" = "Smart home hub"
"gethomepage.dev/icon" = "home-assistant.png"
"gethomepage.dev/group" = "Smart Home"
"gethomepage.dev/pod-selector" = ""
"traefik.ingress.kubernetes.io/service.serverstransport" = "reverse-proxy-ha-sofia-transport@kubernetescrd"
}
}
# https://music-assistant.viktorbarzin.me/
module "music-assistant" {
source = "./factory"
dns_type = "non-proxied"
name = "music-assistant"
external_name = "ha-sofia.viktorbarzin.lan"
port = 8095
tls_secret_name = var.tls_secret_name
depends_on = [kubernetes_namespace.reverse-proxy]
source = "./factory"
dns_type = "non-proxied"
name = "music-assistant"
external_name = "ha-sofia.viktorbarzin.lan"
port = 8095
tls_secret_name = var.tls_secret_name
depends_on = [
kubernetes_namespace.reverse-proxy,
kubernetes_manifest.ha_sofia_retry,
kubernetes_manifest.ha_sofia_transport,
]
protected = false
skip_global_rate_limit = true
extra_middlewares = [
"reverse-proxy-ha-sofia-rate-limit@kubernetescrd",
"reverse-proxy-ha-sofia-retry@kubernetescrd",
]
extra_annotations = {
"traefik.ingress.kubernetes.io/service.serverstransport" = "reverse-proxy-ha-sofia-transport@kubernetescrd"
}
}
# https://ha-london.viktorbarzin.me/