tfstated/cmd/tfstated/main.go

114 lines
2.1 KiB
Go

package main
import (
"context"
"fmt"
"io"
"log"
"log/slog"
"net"
"net/http"
"os"
"os/signal"
"sync"
"time"
"git.adyxax.org/adyxax/tfstated/pkg/database"
"git.adyxax.org/adyxax/tfstated/pkg/logger"
)
func run(
ctx context.Context,
db *database.DB,
//args []string,
getenv func(string) string,
//stdin io.Reader,
//stdout io.Writer,
stderr io.Writer,
) error {
ctx, cancel := signal.NotifyContext(ctx, os.Interrupt)
defer cancel()
if err := db.InitAdminAccount(); err != nil {
return err
}
mux := http.NewServeMux()
addRoutes(
mux,
db,
)
host := getenv("TFSTATED_HOST")
if host == "" {
host = "127.0.0.1"
}
port := getenv("TFSTATED_PORT")
if port == "" {
port = "8080"
}
httpServer := &http.Server{
Addr: net.JoinHostPort(host, port),
Handler: logger.Middleware(mux, false),
}
go func() {
log.Printf("listening on %s\n", httpServer.Addr)
if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
_, _ = fmt.Fprintf(stderr, "error listening and serving: %+v\n", err)
}
}()
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
<-ctx.Done()
shutdownCtx := context.Background()
shutdownCtx, cancel := context.WithTimeout(shutdownCtx, 10*time.Second)
defer cancel()
if err := httpServer.Shutdown(shutdownCtx); err != nil {
_, _ = fmt.Fprintf(stderr, "error shutting down http server: %+v\n", err)
}
}()
wg.Wait()
return nil
}
func main() {
ctx := context.Background()
var opts *slog.HandlerOptions
if os.Getenv("TFSTATED_DEBUG") != "" {
opts = &slog.HandlerOptions{
AddSource: true,
Level: slog.LevelDebug,
}
}
logger := slog.New(slog.NewJSONHandler(os.Stdout, opts))
slog.SetDefault(logger)
db, err := database.NewDB(
ctx,
"./tfstate.db?_txlock=immediate",
os.Getenv,
)
if err != nil {
fmt.Fprintf(os.Stderr, "database init error: %+v\n", err)
os.Exit(1)
}
defer db.Close()
if err := run(
ctx,
db,
//os.Args,
os.Getenv,
//os.Stdin,
//os.Stdout,
os.Stderr,
); err != nil {
fmt.Fprintf(os.Stderr, "%+v\n", err)
os.Exit(1)
}
}