alexei.dolgolyov
791cd4d6af
Build / build (push) Successful in 12m20s
Rebrand the project as Tinyforge to reflect its evolution from a Docker container watcher into a self-hosted mini CI/deployment platform. Rename covers: Go module path, Docker labels, DB/config filenames, JWT issuer, Dockerfile binary, docker-compose, CI workflows, frontend i18n, README with static sites docs, and all code comments.
112 lines
2.8 KiB
Go
112 lines
2.8 KiB
Go
package staticsite
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import (
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"context"
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"fmt"
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"log/slog"
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"sync"
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"time"
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"github.com/alexei/tinyforge/internal/docker"
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"github.com/alexei/tinyforge/internal/store"
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"github.com/robfig/cron/v3"
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)
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// HealthChecker periodically checks that deployed static site containers
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// are still running. If a container has crashed, it updates the site status
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// to "failed" and optionally triggers a redeploy.
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type HealthChecker struct {
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store *store.Store
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docker *docker.Client
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manager *Manager
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cron *cron.Cron
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mu sync.Mutex
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entryID cron.EntryID
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running bool
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}
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// NewHealthChecker creates a new static site health checker.
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func NewHealthChecker(st *store.Store, dockerClient *docker.Client, mgr *Manager) *HealthChecker {
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return &HealthChecker{
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store: st,
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docker: dockerClient,
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manager: mgr,
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cron: cron.New(),
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}
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}
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// Start begins the periodic health check with the given interval (e.g., "5m", "1m").
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func (h *HealthChecker) Start(interval string) error {
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h.mu.Lock()
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defer h.mu.Unlock()
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duration, err := time.ParseDuration(interval)
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if err != nil {
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return fmt.Errorf("parse interval %q: %w", interval, err)
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}
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if h.running {
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h.cron.Remove(h.entryID)
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}
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spec := fmt.Sprintf("@every %s", duration)
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id, err := h.cron.AddFunc(spec, h.check)
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if err != nil {
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return fmt.Errorf("schedule health check: %w", err)
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}
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h.entryID = id
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h.running = true
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h.cron.Start()
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slog.Info("static site health checker started", "interval", interval)
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return nil
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}
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// Stop stops the periodic health checker.
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func (h *HealthChecker) Stop() {
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h.mu.Lock()
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defer h.mu.Unlock()
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if h.running {
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h.cron.Stop()
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h.running = false
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slog.Info("static site health checker stopped")
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}
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}
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// check runs a single health check pass over all deployed static sites.
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func (h *HealthChecker) check() {
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sites, err := h.store.GetAllStaticSites()
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if err != nil {
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slog.Error("static site health check: failed to list sites", "error", err)
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return
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}
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ctx := context.Background()
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for _, site := range sites {
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if site.Status != "deployed" || site.ContainerID == "" {
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continue
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}
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running, err := h.docker.IsContainerRunning(ctx, site.ContainerID)
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if err != nil {
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// Container might have been removed externally.
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slog.Warn("static site health check: container inspect failed",
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"site", site.Name, "container", site.ContainerID[:12], "error", err)
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h.manager.updateStatus(site.ID, "failed", site.LastCommitSHA, "container not found")
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h.manager.publishEvent(site.ID, site.Name, "failed: container not found")
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continue
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}
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if !running {
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slog.Warn("static site health check: container not running",
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"site", site.Name, "container", site.ContainerID[:12])
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h.manager.updateStatus(site.ID, "failed", site.LastCommitSHA, "container stopped unexpectedly")
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h.manager.publishEvent(site.ID, site.Name, "failed: container stopped unexpectedly")
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}
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}
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}
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