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feat(services): sleep mode — scale-to-zero on idle, wake on traffic
Services gain sleep_enabled + sleep_idle_minutes. A 30s sweeper tracks container NetworkIO deltas; a flat counter for the configured window scales the service to zero (status=sleeping, workload containers removed). While slept, a busybox wake container takes over the service's Traefik host rule at priority 100: it serves a self-reloading "waking" page and calls the unauthenticated idempotent GET/POST /api/v1/internal/wake/:id, which reconciles the service back to running. Wake placeholders carry a dedicated label (containr.wake-for) so runtime state never counts them; the sweeper prunes them once the workload is up. The wake URL resolves the API via its container name when containerized, else the edge network's IPAM gateway — bare-metal installs need HOST=0.0.0.0 for the callback. Surfaces: PUT fields on services, POST /services/:id/sleep|wake, CLI --sleep/--sleep-idle + services sleep|wake, 2 MCP tools (89 total), OpenAPI paths/schema, and a Settings > Sleep card with toggle, idle minutes, and manual sleep/wake plus a Sleeping badge. Verified live: idle sweep scaled whoami-web to zero; the wake container served the page on the edge network and its callback woke the service (container recreated, status running, placeholder pruned). Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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Tomas DvorakandDevin committed
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@@ -31,23 +31,37 @@ type Service struct {
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CPU string `json:"cpu" db:"cpu"`
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Memory string `json:"memory" db:"memory"`
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// Runtime spec
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Replicas int `json:"replicas" db:"replicas"`
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Port int `json:"port" db:"port"` // container port to expose
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Domain string `json:"domain" db:"domain"` // public hostname via Traefik
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HealthCheckPath string `json:"healthcheck_path" db:"healthcheck_path"` // probed on Port
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RestartPolicy string `json:"restart_policy" db:"restart_policy"`
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PublicURL string `json:"public_url,omitempty" db:"-"` // computed at read time
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Volumes []ServiceVolume `json:"volumes" db:"-"` // loaded lazily — stored as JSONB
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Domains []ServiceDomain `json:"domains,omitempty" db:"-"`
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MaintenanceMode bool `json:"maintenance_mode" db:"-"`
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BasicAuth []string `json:"basic_auth,omitempty" db:"-"` // usernames only, never hashes
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Builder string `json:"builder" db:"builder"` // auto|railpack|nixpacks|dockerfile|static
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CPUReserve string `json:"cpu_reserve,omitempty" db:"cpu_reserve"`
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MemoryReserve string `json:"memory_reserve,omitempty" db:"memory_reserve"`
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StaticBuildCmd string `json:"static_build_cmd,omitempty" db:"static_build_cmd"`
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StaticDir string `json:"static_dir,omitempty" db:"static_dir"`
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CreatedAt time.Time `json:"created_at" db:"created_at"`
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UpdatedAt time.Time `json:"updated_at" db:"updated_at"`
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Replicas int `json:"replicas" db:"replicas"`
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Port int `json:"port" db:"port"` // container port to expose
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Domain string `json:"domain" db:"domain"` // public hostname via Traefik
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HealthCheckPath string `json:"healthcheck_path" db:"healthcheck_path"` // probed on Port
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RestartPolicy string `json:"restart_policy" db:"restart_policy"`
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PublicURL string `json:"public_url,omitempty" db:"-"` // computed at read time
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Volumes []ServiceVolume `json:"volumes" db:"-"` // loaded lazily — stored as JSONB
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Domains []ServiceDomain `json:"domains,omitempty" db:"-"`
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MaintenanceMode bool `json:"maintenance_mode" db:"-"`
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BasicAuth []string `json:"basic_auth,omitempty" db:"-"` // usernames only, never hashes
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Builder string `json:"builder" db:"builder"` // auto|railpack|nixpacks|dockerfile|static
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CPUReserve string `json:"cpu_reserve,omitempty" db:"cpu_reserve"`
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MemoryReserve string `json:"memory_reserve,omitempty" db:"memory_reserve"`
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StaticBuildCmd string `json:"static_build_cmd,omitempty" db:"static_build_cmd"`
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StaticDir string `json:"static_dir,omitempty" db:"static_dir"`
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SleepEnabled bool `json:"sleep_enabled" db:"-"`
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SleepIdleMinutes int `json:"sleep_idle_minutes" db:"-"`
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CreatedAt time.Time `json:"created_at" db:"created_at"`
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UpdatedAt time.Time `json:"updated_at" db:"updated_at"`
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}
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// loadServiceSleep fills the sleep-mode columns, which live outside the
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// wide service SELECTs. Missing columns (pre-migration) degrade to off.
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func loadServiceSleep(db *database.DB, s *Service) {
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var idle int
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if err := db.QueryRow(
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`SELECT COALESCE(sleep_enabled, false), COALESCE(sleep_idle_minutes, 15) FROM services WHERE id = $1`,
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s.ID,
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).Scan(&s.SleepEnabled, &idle); err == nil {
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s.SleepIdleMinutes = idle
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}
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}
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// ServiceVolume is a volume/bind mount applied to every replica.
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@@ -131,29 +145,31 @@ type CreateServiceRequest struct {
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// UpdateServiceRequest represents a request to update a service
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type UpdateServiceRequest struct {
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Name string `json:"name" binding:"omitempty,min=1,max=255"`
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Type string `json:"type" binding:"omitempty,oneof=web worker database cron"`
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Image string `json:"image"`
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Command string `json:"command"`
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Environment string `json:"environment" binding:"omitempty,oneof=production preview development"`
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GitRepo string `json:"git_repo"`
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GitBranch string `json:"git_branch"`
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BuildPath string `json:"build_path"`
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CPU string `json:"cpu"`
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Memory string `json:"memory"`
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Replicas *int `json:"replicas"`
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Port *int `json:"port"`
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Domain *string `json:"domain"`
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HealthCheckPath *string `json:"healthcheck_path"`
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RestartPolicy string `json:"restart_policy"`
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Volumes *[]ServiceVolume `json:"volumes"`
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MaintenanceMode *bool `json:"maintenance_mode"`
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BasicAuth *[]BasicAuthCred `json:"basic_auth"`
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Builder string `json:"builder" binding:"omitempty,oneof=auto railpack nixpacks dockerfile static"`
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CPUReserve *string `json:"cpu_reserve"`
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MemoryReserve *string `json:"memory_reserve"`
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StaticBuildCmd *string `json:"static_build_cmd"`
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StaticDir *string `json:"static_dir"`
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Name string `json:"name" binding:"omitempty,min=1,max=255"`
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Type string `json:"type" binding:"omitempty,oneof=web worker database cron"`
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Image string `json:"image"`
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Command string `json:"command"`
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Environment string `json:"environment" binding:"omitempty,oneof=production preview development"`
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GitRepo string `json:"git_repo"`
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GitBranch string `json:"git_branch"`
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BuildPath string `json:"build_path"`
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CPU string `json:"cpu"`
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Memory string `json:"memory"`
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Replicas *int `json:"replicas"`
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Port *int `json:"port"`
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Domain *string `json:"domain"`
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HealthCheckPath *string `json:"healthcheck_path"`
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RestartPolicy string `json:"restart_policy"`
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Volumes *[]ServiceVolume `json:"volumes"`
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MaintenanceMode *bool `json:"maintenance_mode"`
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BasicAuth *[]BasicAuthCred `json:"basic_auth"`
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Builder string `json:"builder" binding:"omitempty,oneof=auto railpack nixpacks dockerfile static"`
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CPUReserve *string `json:"cpu_reserve"`
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MemoryReserve *string `json:"memory_reserve"`
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StaticBuildCmd *string `json:"static_build_cmd"`
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StaticDir *string `json:"static_dir"`
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SleepEnabled *bool `json:"sleep_enabled"`
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SleepIdleMinutes *int `json:"sleep_idle_minutes"`
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}
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// handleGetServices retrieves all services for a project
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@@ -201,9 +217,10 @@ func handleGetServices(c *gin.Context) {
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COALESCE(builder, 'auto'), COALESCE(cpu_reserve, ''),
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COALESCE(memory_reserve, ''), COALESCE(static_build_cmd, ''),
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COALESCE(static_dir, ''),
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created_at, updated_at
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FROM services
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WHERE project_id = $1
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COALESCE(sleep_enabled, false), COALESCE(sleep_idle_minutes, 15),
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created_at, updated_at
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FROM services
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WHERE project_id = $1
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ORDER BY created_at DESC`,
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projectID,
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)
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@@ -223,6 +240,7 @@ func handleGetServices(c *gin.Context) {
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&service.Replicas, &service.Port, &service.Domain, &service.HealthCheckPath,
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&service.RestartPolicy, &service.Builder, &service.CPUReserve,
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&service.MemoryReserve, &service.StaticBuildCmd, &service.StaticDir,
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&service.SleepEnabled, &service.SleepIdleMinutes,
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&service.CreatedAt, &service.UpdatedAt,
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)
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if err != nil {
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@@ -524,6 +542,7 @@ func handleGetService(c *gin.Context) {
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})
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}
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service.Domains = loadServiceDomains(db.(*database.DB), service.ID)
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loadServiceSleep(db.(*database.DB), &service)
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maintenance, basicAuth := serviceAccess(db.(*database.DB), service.ID)
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service.MaintenanceMode = maintenance
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service.BasicAuth = basicAuthUsernames(basicAuth)
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@@ -665,6 +684,17 @@ func handleUpdateService(c *gin.Context) {
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if existingService.Builder == "static" && existingService.StaticDir == "" {
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existingService.StaticDir = "dist"
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}
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loadServiceSleep(db.(*database.DB), &existingService)
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if req.SleepEnabled != nil {
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existingService.SleepEnabled = *req.SleepEnabled
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}
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if req.SleepIdleMinutes != nil {
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if *req.SleepIdleMinutes < 1 || *req.SleepIdleMinutes > 1440 {
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c.JSON(http.StatusBadRequest, gin.H{"error": "sleep_idle_minutes must be 1-1440", "code": "VALIDATION"})
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return
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}
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existingService.SleepIdleMinutes = *req.SleepIdleMinutes
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}
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for label, check := range map[string]func(string) error{
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"cpu": validateCPUSpec, "cpu_reserve": validateCPUSpec,
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"memory": validateMemorySpec, "memory_reserve": validateMemorySpec,
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@@ -701,7 +731,8 @@ func handleUpdateService(c *gin.Context) {
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replicas = $11, port = $12, domain = $13, healthcheck_path = $14,
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restart_policy = $15, volumes = COALESCE($17::jsonb, volumes), updated_at = $16,
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builder = $19, cpu_reserve = $20, memory_reserve = $21,
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static_build_cmd = $22, static_dir = $23
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static_build_cmd = $22, static_dir = $23,
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sleep_enabled = $24, sleep_idle_minutes = $25
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WHERE id = $18`,
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existingService.Name, existingService.Type, existingService.Image, existingService.Command,
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existingService.Environment, existingService.GitRepo, existingService.GitBranch,
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@@ -711,6 +742,7 @@ func handleUpdateService(c *gin.Context) {
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existingService.UpdatedAt, volumesArg, existingService.ID,
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existingService.Builder, existingService.CPUReserve, existingService.MemoryReserve,
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existingService.StaticBuildCmd, existingService.StaticDir,
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existingService.SleepEnabled, existingService.SleepIdleMinutes,
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)
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if err != nil {
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