fix: broken bring-up sequence

docker/entrypoint.sh

@@ -10,7 +10,7 @@ error_exit() {
 # To opt out, set BACKUP_DISABLED to any value.
 if [ -n "$BACKUP_DISABLED" ]; then
     echo "Cool folks don't disable backups. I hope you know what you're doing."
-    exec postgres -c archive_mode=off
+    exec docker-entrypoint.sh
 else
     # Check that AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY are set
     [ -z "$AWS_ACCESS_KEY_ID" ] && error_exit "AWS_ACCESS_KEY_ID must be set"
@@ -22,7 +22,7 @@ else
     # Reconstruct full WALG_S3_PREFIX if BACKUP_PREFIX is set
     [ -n "$BACKUP_PREFIX" ] && WALG_S3_PREFIX="s3://bksp-backups/$BACKUP_PREFIX"
 
-    exec postgres \
+    exec docker-entrypoint.sh \
         -c archive_mode=always \
         -c archive_timeout=1h \
         -c archive_command='walg-push /var/lib/postgresql/data/%p' \