feat(delivery): add delivery configuration and environment variables

Add 10 config fields: AWX connection (AWX_BASE_URL, AWX_TOKEN),
scheduler controls (DELIVERY_SCHEDULER_ENABLED, DELIVERY_POLL_SECONDS,
DELIVERY_RESERVATION_TTL_MINUTES), concurrency limits (GLOBAL/TARGET/
BUSINESS), service token, and CloudDM registration (CLOUDDM_REGISTER_URL,
CLOUDDM_API_TOKEN). Update .env.example with new variables.

Relates-to: #97

server/.env.example

@@ -18,6 +18,19 @@ DEPLOYMENT_CALLBACK_BASE_URL=http://authserver-backend:8080
 MYSQL_DSN=auth:auth@tcp(127.0.0.1:3000)/authserver?charset=utf8mb4&parseTime=True&loc=Local
 AUTO_MIGRATE=true
 
+# MySQL service delivery (AWX is required when the scheduler is enabled)
+DELIVERY_SCHEDULER_ENABLED=false
+DELIVERY_POLL_SECONDS=5
+DELIVERY_RESERVATION_TTL_MINUTES=120
+DELIVERY_GLOBAL_LIMIT=2
+DELIVERY_TARGET_LIMIT=2
+DELIVERY_BUSINESS_LIMIT=1
+AWX_BASE_URL=
+AWX_TOKEN=
+DELIVERY_SERVICE_TOKEN=
+CLOUDDM_REGISTER_URL=
+CLOUDDM_API_TOKEN=
+
 JWT_SECRET=change-this-secret
 JWT_ISSUER=authserver
 JWT_TTL_MINUTES=120

server/internal/config/config.go

@@ -57,9 +57,20 @@ type Config struct {
 	CloudDMClientSecret       string
 	CloudDMRedirectURI        string
 	CloudDMTargetURL          string
+	CloudDMRegisterURL        string
+	CloudDMAPIToken           string
 	AnsibleServiceBaseURL     string
 	AnsibleInternalToken      string
 	DeploymentCallbackBaseURL string
+	AWXBaseURL                string
+	AWXToken                  string
+	DeliveryServiceToken      string
+	DeliverySchedulerEnabled  bool
+	DeliveryPollSeconds       int
+	ReservationTTLMinutes     int
+	DeliveryGlobalLimit       int
+	DeliveryTargetLimit       int
+	DeliveryBusinessLimit     int
 }
 
 func Load() Config {
@@ -115,9 +126,20 @@ func Load() Config {
 		CloudDMClientSecret:       env("OIDC_CLOUDDM_CLIENT_SECRET", ""),
 		CloudDMRedirectURI:        env("OIDC_CLOUDDM_REDIRECT_URI", ""),
 		CloudDMTargetURL:          env("CLOUDDM_TARGET_URL", ""),
+		CloudDMRegisterURL:        trimURL(env("CLOUDDM_REGISTER_URL", "")),
+		CloudDMAPIToken:           env("CLOUDDM_API_TOKEN", ""),
 		AnsibleServiceBaseURL:     trimURL(env("ANSIBLE_SERVICE_BASE_URL", "")),
 		AnsibleInternalToken:      env("ANSIBLE_INTERNAL_TOKEN", ""),
 		DeploymentCallbackBaseURL: trimURL(env("DEPLOYMENT_CALLBACK_BASE_URL", publicBaseURL)),
+		AWXBaseURL:                trimURL(env("AWX_BASE_URL", "")),
+		AWXToken:                  env("AWX_TOKEN", ""),
+		DeliveryServiceToken:      env("DELIVERY_SERVICE_TOKEN", ""),
+		DeliverySchedulerEnabled:  envBool("DELIVERY_SCHEDULER_ENABLED", false),
+		DeliveryPollSeconds:       envInt("DELIVERY_POLL_SECONDS", 5),
+		ReservationTTLMinutes:     envInt("DELIVERY_RESERVATION_TTL_MINUTES", 120),
+		DeliveryGlobalLimit:       envInt("DELIVERY_GLOBAL_LIMIT", 2),
+		DeliveryTargetLimit:       envInt("DELIVERY_TARGET_LIMIT", 2),
+		DeliveryBusinessLimit:     envInt("DELIVERY_BUSINESS_LIMIT", 1),
 	}
 }