fix: log detailed error for bucket checking

Dockerfile

@@ -14,17 +14,17 @@ RUN ./build.sh
 # Final runtime stage.
 FROM alpine
 
-RUN mkdir /plugins
-COPY --from=builder /opt/bin/plugin_antispam_ocr /plugins/
-COPY --from=builder /opt/bin/media_repo /opt/bin/import_synapse /opt/bin/export_synapse_for_import /opt/bin/gdpr_export /opt/bin/gdpr_import /opt/bin/s3_consistency_check /usr/local/bin/
-
 RUN apk add --no-cache \
         su-exec \
         ca-certificates \
         dos2unix \
         imagemagick \
         ffmpeg
 
+RUN mkdir /plugins
+COPY --from=builder /opt/bin/plugin_antispam_ocr /plugins/
+COPY --from=builder /opt/bin/media_repo /opt/bin/import_synapse /opt/bin/export_synapse_for_import /opt/bin/gdpr_export /opt/bin/gdpr_import /opt/bin/s3_consistency_check /usr/local/bin/
+
 COPY ./config.sample.yaml /etc/media-repo.yaml.sample
 COPY ./docker/run.sh /usr/local/bin/
 RUN dos2unix /usr/local/bin/run.sh

common/runtime/init.go

@@ -2,8 +2,8 @@ package runtime
 
 import (
 	"fmt"
-	"github.com/getsentry/sentry-go"
 
+	"github.com/getsentry/sentry-go"
 	"github.com/sirupsen/logrus"
 	"github.com/turt2live/matrix-media-repo/common/config"
 	"github.com/turt2live/matrix-media-repo/common/rcontext"
@@ -73,7 +73,7 @@ func LoadDatastores() {
 
 			err = s3.EnsureBucketExists()
 			if err != nil {
-				logrus.Warn("\t\tBucket does not exist!")
+				logrus.Warn("\t\tBucket does not exist!", err)
 			}
 
 			err = s3.EnsureTempPathExists()

storage/datastore/ds_s3/s3_store.go

@@ -131,7 +131,7 @@ func ParseS3URL(s3url string) (string, string, string, error) {
 func (s *s3Datastore) EnsureBucketExists() error {
 	found, err := s.client.BucketExists(s.ctx, s.bucket)
 	if err != nil {
-		return err
+		return errors.New("error checking if bucket exists: " + err.Error())
 	}
 	if !found {
 		return errors.New("bucket not found")