Restored get_docker_image functionality

filter_plugins/docker_image.py

@@ -1,17 +0,0 @@
-from get_app_conf import get_app_conf
-
-def get_docker_image(applications, application_id, image_key: str = None):
-    """
-    Wrapper for compatibility: Compose the docker image:version string.
-    Raises error if value missing, like before.
-    """
-    image_key = image_key if image_key else application_id
-    image = get_app_conf(applications, application_id, f"docker.images.{image_key}", strict=True)
-    version = get_app_conf(applications, application_id, f"docker.versions.{image_key}", strict=True)
-    return f"{image}:{version}"
-
-class FilterModule(object):
-    def filters(self):
-        return {
-            'get_docker_image': get_docker_image,
-        }

filter_plugins/get_docker_image.py

@@ -0,0 +1,19 @@
+def get_docker_image(applications, application_id, image_key:str=None):
+    image_key = image_key if image_key else application_id
+    docker = applications.get(application_id, {}).get("docker", {})
+    version = docker.get("versions", {}).get(image_key)
+    image = docker.get("images", {}).get(image_key)
+
+    if not image:
+        raise ValueError(f"Missing image for {application_id}:{image_key}")
+
+    if not version:
+        raise ValueError(f"Missing version for {application_id}:{image_key}")
+    
+    return f"{image}:{version}"
+
+class FilterModule(object):
+    def filters(self):
+        return {
+            'get_docker_image': get_docker_image,
+        }

tests/unit/filter_plugins/test_docker_image.py

@@ -7,7 +7,7 @@ import unittest
 # Add filter_plugins/ to the import path
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../..", "filter_plugins")))
 
-from docker_image import FilterModule
+from get_docker_image import FilterModule
 
 class TestGetDockerImage(unittest.TestCase):
     def setUp(self):