Specify content interface socket directory path

charmcraft-22.04.yaml

@@ -17,8 +17,10 @@ description: |
 
 parts:
   charm:
-    charm-binary-python-packages:
-      - pydantic
+    plugin: uv
+    source: .
+    build-snaps:
+      - astral-uv
 
 base: ubuntu@22.04
 platforms:

charmcraft-24.04.yaml

@@ -17,8 +17,10 @@ description: |
 
 parts:
   charm:
-    charm-binary-python-packages:
-      - pydantic
+    plugin: uv
+    source: .
+    build-snaps:
+      - astral-uv
 
 base: ubuntu@24.04
 platforms:

lib/charms/consul_client/v0/consul_notify.py

@@ -90,10 +90,11 @@ def _on_consul_notify_ready(self, event):
 
         This event happens when the relation is created or joined.
         '''
-        # Set the socket information for the provider
+        # Set the socket information for the provider.
+        # unix_socket_filepath as the socket file name, not as an absolute path.
         self.consul_notify.set_socket_info(
             snap_name="my-service-snap",
-            unix_socket_filepath="/var/snap/my-service-snap/common/socket.sock"
+            unix_socket_filepath="socket.sock"
         )
 ```
 """
@@ -113,7 +114,7 @@ def _on_consul_notify_ready(self, event):
 
 # Increment this PATCH version before using `charmcraft publish-lib` or reset
 # to 0 if you are raising the major API version
-LIBPATCH = 2
+LIBPATCH = 3
 
 DEFAULT_RELATION_NAME = "consul-notify"
 

pyproject.toml

@@ -1,3 +1,13 @@
+[project]
+name = "consul-client"
+version = "1.19"
+requires-python = "~=3.12.0"
+dependencies = [
+    "ops",
+    "pydantic",
+]
+
+
 # Testing tools configuration
 [tool.coverage.run]
 branch = true

src/config_builder.py

@@ -35,6 +35,8 @@ class Ports(BaseModel):
 class ConsulConfigBuilder:
     """Build the configuration file for consul."""
 
+    HYPERVISOR_SOCKET_PREFIX = "hypervisor"
+
     def __init__(
         self,
         bind_address: str | None,
@@ -90,7 +92,9 @@ def build(self) -> dict:
                 args = ["python3", str(self.consul_health_check), *self.healthcheck_endpoints]
             else:
                 args = ["python3", str(self.consul_health_check), *self.consul_servers]
-            args.extend(["--socket-path", self.unix_socket_filepath])
+            args.extend(
+                ["--socket-path", f"{self.HYPERVISOR_SOCKET_PREFIX}/{self.unix_socket_filepath}"]
+            )
             args.extend(["--monitoring-samples", str(self.monitoring_samples)])
 
             config["services"] = [

tests/unit/test_charm.py

@@ -11,6 +11,7 @@
 from ops.testing import Harness
 
 from charm import ConsulCharm
+from config_builder import ConsulConfigBuilder
 
 
 @pytest.fixture()
@@ -190,7 +191,10 @@ def test_consul_notify_socket_available(
     assert health_check_service["check"]["id"] == "tcp-check"
     assert health_check_service["check"]["name"] == "TCP Health Check"
     assert "--socket-path" in health_check_service["check"]["args"]
-    assert socket_path in health_check_service["check"]["args"]
+    assert (
+        f"{ConsulConfigBuilder.HYPERVISOR_SOCKET_PREFIX}/{socket_path}"
+        in health_check_service["check"]["args"]
+    )
 
 
 def test_consul_notify_socket_gone(
@@ -371,7 +375,10 @@ def test_socket_config_persists_across_events(
     assert len(initial_config_dict["services"]) == 1
     assert initial_config_dict["services"][0]["name"] == "tcp-health-check"
     assert "--socket-path" in initial_config_dict["services"][0]["check"]["args"]
-    assert socket_path in initial_config_dict["services"][0]["check"]["args"]
+    assert (
+        f"{ConsulConfigBuilder.HYPERVISOR_SOCKET_PREFIX}/{socket_path}"
+        in initial_config_dict["services"][0]["check"]["args"]
+    )
 
     # Reset the mock to track subsequent calls
     write_config.reset_mock()
@@ -389,7 +396,10 @@ def test_socket_config_persists_across_events(
         assert len(post_event_config_dict["services"]) == 1
         assert post_event_config_dict["services"][0]["name"] == "tcp-health-check"
         assert "--socket-path" in post_event_config_dict["services"][0]["check"]["args"]
-        assert socket_path in post_event_config_dict["services"][0]["check"]["args"]
+        assert (
+            f"{ConsulConfigBuilder.HYPERVISOR_SOCKET_PREFIX}/{socket_path}"
+            in post_event_config_dict["services"][0]["check"]["args"]
+        )
 
     # Verify relation data is still accessible
     assert charm.consul_notify.is_ready
@@ -409,7 +419,10 @@ def test_socket_config_persists_across_events(
         assert len(upgrade_config_dict["services"]) == 1
         assert upgrade_config_dict["services"][0]["name"] == "tcp-health-check"
         assert "--socket-path" in upgrade_config_dict["services"][0]["check"]["args"]
-        assert socket_path in upgrade_config_dict["services"][0]["check"]["args"]
+        assert (
+            f"{ConsulConfigBuilder.HYPERVISOR_SOCKET_PREFIX}/{socket_path}"
+            in upgrade_config_dict["services"][0]["check"]["args"]
+        )
 
 
 def test_health_check_disabled_by_config(