Files
tiny-forge/internal/docker/system.go
T
alexei.dolgolyov 05440a5f92
Build / build (push) Successful in 10m50s
feat(stats): resource metrics dashboard + sites logs/stats
Background collector samples CPU/memory/network/block I/O for every
instance and site on a configurable interval (default 15s, range
5-300s), persists samples to SQLite with a configurable retention
window (default 2h, range 0-24h), and skips ticks gracefully when
the Docker daemon is unreachable. Settings are reloadable without
a restart — each tick re-reads them.

New API endpoints:
- GET /api/system/stats (host snapshot: info + df)
- GET /api/system/stats/history
- GET /api/system/stats/top?by=cpu|memory
- GET /api/projects/{id}/stages/{s}/instances/{iid}/stats/history
- GET /api/sites/{id}/stats[/history]
- GET /api/sites/{id}/logs (SSE + JSON, reuses instance log streamer)

Frontend:
- ECharts added with tree-shaken imports (~180KB gzip) for
  future-proof time-series/gantt/graph visualizations
- CollapsibleSection wraps all dashboard sections (system health,
  daemons, system resources, static sites, projects) with
  localStorage-persisted open state
- SystemResourcesCard shows capacity tiles, workload utilization
  chart with 30m/2h/6h/24h window picker, disk breakdown with
  reclaimable callouts, and top 5 consumers
- ContainerStats and ContainerLogs take a source discriminated union
  so sites reuse the same components as instances; sites detail page
  embeds both for Deno backend debugging
- Settings › Maintenance exposes collection interval + retention
- Docker-unavailable state returns 503 and renders an amber banner
  instead of a generic 500

Full i18n coverage (en + ru) for all new strings.
2026-04-24 15:02:43 +03:00

88 lines
2.8 KiB
Go

package docker
import (
"context"
"fmt"
"time"
"github.com/moby/moby/client"
)
// SystemStats is a host-level snapshot combining daemon capacity
// (NCPU, memory total) with container counts and disk usage broken down
// by category. Workload CPU/memory utilization is aggregated from
// per-container samples by the stats collector, not here.
type SystemStats struct {
Timestamp time.Time `json:"timestamp"`
// Capacity from Docker daemon.
NCPU int `json:"ncpu"`
MemoryTotal int64 `json:"memory_total"`
// Container/image counts.
Containers int `json:"containers"`
Running int `json:"running"`
Paused int `json:"paused"`
Stopped int `json:"stopped"`
Images int `json:"images"`
// Disk usage by category (bytes).
DiskImagesBytes int64 `json:"disk_images_bytes"`
DiskContainersBytes int64 `json:"disk_containers_bytes"`
DiskVolumesBytes int64 `json:"disk_volumes_bytes"`
DiskBuildCacheBytes int64 `json:"disk_build_cache_bytes"`
// Reclaimable disk space by category (bytes).
DiskImagesReclaimable int64 `json:"disk_images_reclaimable"`
DiskContainersReclaimable int64 `json:"disk_containers_reclaimable"`
DiskVolumesReclaimable int64 `json:"disk_volumes_reclaimable"`
DiskBuildCacheReclaimable int64 `json:"disk_build_cache_reclaimable"`
// DiskTotalBytes is the sum of the category totals.
DiskTotalBytes int64 `json:"disk_total_bytes"`
}
// GetSystemStats returns a one-shot host-level snapshot. The Info() call
// and disk usage call are made in sequence. Disk usage failures do not
// fail the whole call — the result degrades gracefully with zero disk fields.
func (c *Client) GetSystemStats(ctx context.Context) (SystemStats, error) {
info, err := c.Info(ctx)
if err != nil {
return SystemStats{}, fmt.Errorf("system stats: %w", err)
}
stats := SystemStats{
Timestamp: time.Now().UTC(),
NCPU: info.NCPU,
MemoryTotal: info.MemoryTotal,
Containers: info.Containers,
Running: info.Running,
Paused: info.Paused,
Stopped: info.Stopped,
Images: info.Images,
}
du, derr := c.api.DiskUsage(ctx, client.DiskUsageOptions{
Containers: true,
Images: true,
Volumes: true,
BuildCache: true,
})
if derr == nil {
stats.DiskImagesBytes = du.Images.TotalSize
stats.DiskContainersBytes = du.Containers.TotalSize
stats.DiskVolumesBytes = du.Volumes.TotalSize
stats.DiskBuildCacheBytes = du.BuildCache.TotalSize
stats.DiskImagesReclaimable = du.Images.Reclaimable
stats.DiskContainersReclaimable = du.Containers.Reclaimable
stats.DiskVolumesReclaimable = du.Volumes.Reclaimable
stats.DiskBuildCacheReclaimable = du.BuildCache.Reclaimable
stats.DiskTotalBytes = stats.DiskImagesBytes +
stats.DiskContainersBytes +
stats.DiskVolumesBytes +
stats.DiskBuildCacheBytes
}
return stats, nil
}