chore: init charm (#1908)

with `charmcraft init --profile flask-framework`

charm/.gitignore

@@ -0,0 +1,9 @@
+venv/
+build/
+*.charm
+.tox/
+.coverage
+__pycache__/
+*.py[cod]
+.idea
+.vscode/

charm/charmcraft.yaml

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+name: charmhub-io
+
+type: charm
+
+bases:
+  - build-on:
+    - name: ubuntu
+      channel: "22.04"
+    run-on:
+    - name: ubuntu
+      channel: "22.04"
+
+summary: The charm for the charmhub.io website
+
+description: The charm for the charmhub.io website, built with PaaS app charmer
+
+extensions:
+  - flask-framework

charm/requirements.txt

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+paas-app-charmer==1.*

charm/src/charm.py

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+#!/usr/bin/env python3
+# Copyright 2024 Moe Isk
+# See LICENSE file for licensing details.
+
+"""Flask Charm entrypoint."""
+
+import logging
+import typing
+
+import ops
+
+import paas_app_charmer.flask
+
+logger = logging.getLogger(__name__)
+
+
+class FlaskCharm(paas_app_charmer.flask.Charm):
+    """Flask Charm service."""
+
+    def __init__(self, *args: typing.Any) -> None:
+        """Initialize the instance.
+
+        Args:
+            args: passthrough to CharmBase.
+        """
+        super().__init__(*args)
+
+
+if __name__ == "__main__":
+    ops.main.main(FlaskCharm)