chore: update charm libraries (#170)

* chore: update charm libraries

* ruff is the new black

---------

Co-authored-by: Pietro Pasotti <starfire.daemon@gmail.com>

lib/charms/grafana_cloud_integrator/v0/cloud_config_requirer.py

@@ -6,7 +6,7 @@
 
 LIBID = "e6f580481c1b4388aa4d2cdf412a47fa"
 LIBAPI = 0
-LIBPATCH = 5
+LIBPATCH = 6
 
 DEFAULT_RELATION_NAME = "grafana-cloud-config"
 
@@ -53,15 +53,9 @@ def __init__(self, charm, relation_name = DEFAULT_RELATION_NAME):
             self.framework.observe(event, self._on_relation_broken)
 
     def _on_relation_changed(self, event):
-        if not self._charm.unit.is_leader():
-            return
-
         self.on.cloud_config_available.emit()  # pyright: ignore
 
     def _on_relation_broken(self, event):
-        if not self._charm.unit.is_leader():
-            return
-
         self.on.cloud_config_revoked.emit()  # pyright: ignore
 
     def _is_not_empty(self, s):

lib/charms/tempo_k8s/v1/charm_tracing.py

@@ -224,7 +224,6 @@ def _remove_stale_otel_sdk_packages():
 
 _remove_stale_otel_sdk_packages()
 
-
 import functools
 import inspect
 import logging
@@ -271,7 +270,7 @@ def _remove_stale_otel_sdk_packages():
 # Increment this PATCH version before using `charmcraft publish-lib` or reset
 # to 0 if you are raising the major API version
 
-LIBPATCH = 14
+LIBPATCH = 15
 
 PYDEPS = ["opentelemetry-exporter-otlp-proto-http==1.21.0"]
 
@@ -281,7 +280,6 @@ def _remove_stale_otel_sdk_packages():
 # set this to 0 if you are debugging/developing this library source
 dev_logger.setLevel(logging.CRITICAL)
 
-
 _CharmType = Type[CharmBase]  # the type CharmBase and any subclass thereof
 _C = TypeVar("_C", bound=_CharmType)
 _T = TypeVar("_T", bound=type)
@@ -333,9 +331,22 @@ def _get_tracer() -> Optional[Tracer]:
     try:
         return tracer.get()
     except LookupError:
+        # fallback: this course-corrects for a user error where charm_tracing symbols are imported
+        # from different paths (typically charms.tempo_k8s... and lib.charms.tempo_k8s...)
         try:
             ctx: Context = copy_context()
             if context_tracer := _get_tracer_from_context(ctx):
+                logger.warning(
+                    "Tracer not found in `tracer` context var. "
+                    "Verify that you're importing all `charm_tracing` symbols from the same module path. \n"
+                    "For example, DO"
+                    ": `from charms.lib...charm_tracing import foo, bar`. \n"
+                    "DONT: \n"
+                    " \t - `from charms.lib...charm_tracing import foo` \n"
+                    " \t - `from lib...charm_tracing import bar` \n"
+                    "For more info: https://python-notes.curiousefficiency.org/en/latest/python"
+                    "_concepts/import_traps.html#the-double-import-trap"
+                )
                 return context_tracer.get()
             else:
                 return None