修复自动备份真实挂载解析（07-27-automatic-offhost-backup）

scripts/qa/run-automatic-backup-contract.sh

@@ -239,11 +239,11 @@ if [[ "${1:-}" == "inspect" ]]; then
         printf 'POSTGRES_DB=hyb_oa\nPOSTGRES_USER=backup_user\nPOSTGRES_PASSWORD=fixture\n'
       fi
       ;;
-    *Mounts*)
+    *json*.Mounts*)
       if [[ "$container" == "server-id" ]]; then
-        printf '/app/storage\t%s\n' "$MOCK_STORAGE"
+        printf '[{"Destination":"/app/storage","Source":"%s"}]\n' "$MOCK_STORAGE"
       else
-        printf '/var/lib/postgresql/data\t%s\n' "$MOCK_PG"
+        printf '[{"Destination":"/var/lib/postgresql/data","Source":"%s"}]\n' "$MOCK_PG"
       fi
       ;;
     *Image*) printf 'sha256:%064d\n' 0 ;;

scripts/run-automatic-backup.sh

@@ -134,8 +134,18 @@ container_env() {
 mount_source() {
   local container_id="$1"
   local destination="$2"
-  docker inspect -f '{{range .Mounts}}{{println .Destination "\t" .Source}}{{end}}' "$container_id" \
-    | awk -F '\t' -v expected="$destination" '$1 == expected { print $2 }'
+  docker inspect -f '{{json .Mounts}}' "$container_id" \
+    | python3 -c '
+import json
+import sys
+
+destination = sys.argv[1]
+mounts = json.load(sys.stdin)
+matches = [mount.get("Source", "") for mount in mounts if mount.get("Destination") == destination]
+if len(matches) != 1 or not matches[0]:
+    raise SystemExit(1)
+print(matches[0])
+' "$destination"
 }
 
 resolve_active_runtime() {