Added customisation plugin to invenio instance

invenio/Dockerfile

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+FROM ghcr.io/front-matter/invenio-rdm-starter:v12.0.13.4
+
+RUN /opt/invenio/.venv/bin/python -m ensurepip
+RUN /opt/invenio/.venv/bin/python -m pip install -e /opt/invenio/var/instance/static/plugin
+RUN /opt/invenio/.venv/bin/python -m pip uninstall -e pip

invenio/plugin/__init__.py

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+from flask import Blueprint
+
+
+def init_app(app):
+    """Initialize application."""
+    app.register_blueprint(views.blueprint)
+    return app
+
+
+from . import views

invenio/plugin/setup.py

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+from setuptools import setup
+
+setup(
+    name="custom_invenio_plugin",
+    version="0.1.0",
+    packages=["custom_invenio_plugin"],
+    entry_points={
+        "invenio_base.apps": [
+            "custom_menu = custom_invenio_plugin:init_app",
+        ],
+    },
+)

invenio/plugin/views.py

@@ -0,0 +1,17 @@
+from flask import Blueprint
+from flask_menu import current_menu
+
+blueprint = Blueprint(
+    "custom_menu",
+    __name__,
+)
+
+
+@blueprint.before_app_first_request
+def init_menu():
+    """Add custom items to main menu."""
+    current_menu.submenu("main").register(
+        "About AM-D-Model",
+        "https://am-d-model.eu",
+        order=0,
+    )