iu
2b2b342492
Backend (Go/Gin/pgx): env config, pgx pool with retries, Garage S3 client (path-style, region garage), embedded golang-migrate migrations, JWT auth with refresh rotation, albums CRUD, members/roles/invites with no-escalation matrix, photo upload + async imaging/goexif WebP variants, cursor pagination, presigned URLs, likes/comments, SSE hub (album + personal), notifications, share links. Frontend (SvelteKit 2 + Svelte 5 + Tailwind v4): API wrapper with 401 refresh, auth store, all screens, Uploader/PhotoGrid/Lightbox/Comments, SSE client with reconnect + REST catch-up, three themes + system via data-theme. Deploy without Docker: Makefile builds the frontend into backend/static and embeds it (go:embed) into a single statically linked binary; systemd unit and nginx SSE example included. Use gen2brain/webp (-tags nodynamic) instead of cgo kolesa-team/go-webp to keep CGO_ENABLED=0 static builds; design.md/proposal.md updated accordingly.
49 lines
1.0 KiB
Go
49 lines
1.0 KiB
Go
package db
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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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"time"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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func Connect(ctx context.Context, dsn string) (*pgxpool.Pool, error) {
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cfg, err := pgxpool.ParseConfig(dsn)
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if err != nil {
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return nil, fmt.Errorf("parse dsn: %w", err)
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}
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cfg.MaxConns = 10
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cfg.MinConns = 1
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cfg.MaxConnLifetime = time.Hour
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cfg.HealthCheckPeriod = time.Minute
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var pool *pgxpool.Pool
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var lastErr error
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backoff := time.Second
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for attempt := 1; attempt <= 10; attempt++ {
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pool, err = pgxpool.NewWithConfig(ctx, cfg)
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if err == nil {
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pingCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
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err = pool.Ping(pingCtx)
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cancel()
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if err == nil {
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return pool, nil
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}
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pool.Close()
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}
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lastErr = err
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slog.Warn("db connect attempt failed", "attempt", attempt, "error", err)
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select {
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case <-ctx.Done():
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return nil, ctx.Err()
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case <-time.After(backoff):
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}
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if backoff < 15*time.Second {
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backoff *= 2
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}
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}
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return nil, fmt.Errorf("connect to database after retries: %w", lastErr)
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}
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