/
pgopher.go
90 lines (70 loc) · 1.92 KB
/
pgopher.go
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package pgopher
import (
"context"
"errors"
"fmt"
"log/slog"
"net/http"
"os"
"sync"
awsConfig "github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/s3"
"github.com/labstack/echo/v4"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
)
type Server struct {
cfg Config
mux *echo.Echo
s3Client *s3.Client
kubeClient *kubernetes.Clientset
}
func NewServer(cfg Config) (*Server, error) {
s := &Server{
cfg: cfg,
mux: echo.New(),
}
s.mux.HideBanner = true
s.mux.HidePort = true
s.mux.GET("/_ready", readinessProbe)
s.mux.GET("/_live", livenessProbe)
s.mux.GET("/api/v1/profile/:profile", s.handleProfile)
if cfg.Sink.Type == "s3" {
sdkConfig, err := awsConfig.LoadDefaultConfig(context.Background())
if err != nil {
return nil, fmt.Errorf("failed to load aws config: %w", err)
}
s.s3Client = s3.NewFromConfig(sdkConfig)
}
if cfg.Sink.Type == "kubernetes" {
kubeCfg, err := clientcmd.BuildConfigFromFlags(cfg.Sink.KubernetesSinkOptions.APIServerURL, os.Getenv("KUBECONFIG"))
if err != nil {
return nil, fmt.Errorf("failed to create kubernetes config: %w", err)
}
s.kubeClient, err = kubernetes.NewForConfig(kubeCfg)
if err != nil {
return nil, fmt.Errorf("failed to create kubernetes client: %w", err)
}
}
return s, nil
}
func (s *Server) Run(ctx context.Context) error {
wg := &sync.WaitGroup{}
wg.Add(1)
go s.startScheduler(ctx, wg)
go func() {
<-ctx.Done()
err := s.mux.Shutdown(context.Background())
if err != nil {
slog.Error("failed to shutdown http server", slog.String("err", err.Error()))
}
}()
slog.Info("starting http server", slog.String("listenAddr", s.cfg.ListenAddress))
err := s.mux.Start(s.cfg.ListenAddress)
if err != nil && !errors.Is(err, http.ErrServerClosed) {
return fmt.Errorf("http server failed: %w", err)
}
wg.Wait()
slog.Info("graceful shutdown completed, see you next time!")
return nil
}