wip: rename to authentik (#361)

* root: initial rename

* web: rename custom element prefix

* root: rename external functions with pb_ prefix

* root: fix formatting

* root: replace domain with goauthentik.io

* proxy: update path

* root: rename remaining prefixes

* flows: rename file extension

* root: pbadmin -> akadmin

* docs: fix image filenames

* lifecycle: ignore migration files

* ci: copy default config from current source before loading last tagged

* *: new sentry dsn

* tests: fix missing python3.9-dev package

* root: add additional migrations for service accounts created by outposts

* core: mark system-created service accounts with attribute

* policies/expression: fix pb_ replacement not working

* web: fix last linting errors, add lit-analyse

* policies/expressions: fix lint errors

* web: fix sidebar display on screens where not all items fit

* proxy: attempt to fix proxy pipeline

* proxy: use go env GOPATH to get gopath

* lib: fix user_default naming inconsistency

* docs: add upgrade docs

* docs: update screenshots to use authentik

* admin: fix create button on empty-state of outpost

* web: fix modal submit not refreshing SiteShell and Table

* web: fix height of app-card and height of generic icon

* web: fix rendering of subtext

* admin: fix version check error not being caught

* web: fix worker count not being shown

* docs: update screenshots

* root: new icon

* web: fix lint error

* admin: fix linting error

* root: migrate coverage config to pyproject

authentik/flows/signals.py

@@ -0,0 +1,37 @@
+"""authentik flow signals"""
+from django.core.cache import cache
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+from structlog import get_logger
+
+LOGGER = get_logger()
+
+
+def delete_cache_prefix(prefix: str) -> int:
+    """Delete keys prefixed with `prefix` and return count of deleted keys."""
+    keys = cache.keys(prefix)
+    cache.delete_many(keys)
+    return len(keys)
+
+
+@receiver(post_save)
+# pylint: disable=unused-argument
+def invalidate_flow_cache(sender, instance, **_):
+    """Invalidate flow cache when flow is updated"""
+    from authentik.flows.models import Flow, FlowStageBinding, Stage
+    from authentik.flows.planner import cache_key
+
+    if isinstance(instance, Flow):
+        total = delete_cache_prefix(f"{cache_key(instance)}*")
+        LOGGER.debug("Invalidating Flow cache", flow=instance, len=total)
+    if isinstance(instance, FlowStageBinding):
+        total = delete_cache_prefix(f"{cache_key(instance.target)}*")
+        LOGGER.debug(
+            "Invalidating Flow cache from FlowStageBinding", binding=instance, len=total
+        )
+    if isinstance(instance, Stage):
+        total = 0
+        for binding in FlowStageBinding.objects.filter(stage=instance):
+            prefix = cache_key(binding.target)
+            total += delete_cache_prefix(f"{prefix}*")
+        LOGGER.debug("Invalidating Flow cache from Stage", stage=instance, len=total)