Add ca-certificates to container, slightly improve logging

Containerfile

@@ -1,8 +1,10 @@
 FROM library/golang:1.21 AS build
+RUN apt-get update && apt-get install -y ca-certificates && mkdir -p /tmp/etc/ssl/certs && cp /etc/ssl/certs/ca-certificates.crt /tmp/etc/ssl/certs/ca-certificates.crt
 ADD . /go/s3staticsite
 WORKDIR /go/s3staticsite
 RUN CGO_ENABLED=0 go build .
 
 FROM scratch
+COPY --from=build /tmp/etc /etc
 COPY --from=build /go/s3staticsite/s3staticsite /s3staticsite
 ENTRYPOINT ["/s3staticsite"]

serve.go

@@ -45,6 +45,7 @@ func (h handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
+		slog.Warn("failed to stat object", "err", err, "bucket", domain, "path", path)
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}