Merge 7b1d175640 into 60df4f7e35

dangerzone/container_utils.py

@@ -112,6 +112,25 @@ def delete_image_tag(tag: str) -> None:
         )
 
 
+def add_image_tag(cur_tag: str, new_tag: str) -> None:
+    """Add a tag to an existing Dangerzone image."""
+    cur_image_name = CONTAINER_NAME + ":" + cur_tag
+    new_image_name = CONTAINER_NAME + ":" + new_tag
+    subprocess.check_output(
+        [
+            get_runtime(),
+            "tag",
+            cur_image_name,
+            new_image_name,
+        ],
+        startupinfo=get_subprocess_startupinfo(),
+    )
+
+    log.info(
+        f"Successfully tagged container image '{cur_image_name}' as '{new_image_name}'"
+    )
+
+
 def get_expected_tag() -> str:
     """Get the tag of the Dangerzone image tarball from the image-id.txt file."""
     with open(get_resource_path("image-id.txt")) as f: