diff --git a/specs/queens/approved/charm-panko.rst b/specs/queens/approved/charm-panko.rst
new file mode 100644
index 0000000..f09536e
--- /dev/null
+++ b/specs/queens/approved/charm-panko.rst
@@ -0,0 +1,153 @@
+..
+  Copyright 2017, Canonical UK
+
+  This work is licensed under a Creative Commons Attribution 3.0
+  Unported License.
+  http://creativecommons.org/licenses/by/3.0/legalcode
+
+..
+  This template should be in ReSTructured text. Please do not delete
+  any of the sections in this template.  If you have nothing to say
+  for a whole section, just write: "None". For help with syntax, see
+  http://sphinx-doc.org/rest.html To test out your formatting, see
+  http://www.tele3.cz/jbar/rest/rest.html
+
+===============================
+Panko Charm
+===============================
+
+Ceilometer used to provide an event API to query and store events from
+different OpenStack services. However, this functionality was deprecated
+in Newton and removed in Ocata. Event storage and querying functionality
+is now provided by a service called Panko. Use-cases of historical
+event data storage include audit logging, debugging and billing.
+
+Problem Description
+===================
+
+Panko is an event storage service that provides an ability to store and
+query event data generated by Ceilometer with potentially other sources.
+Panko includes support for several storage options (sqlalchemy-compatible
+databases, mongodb, elasticsearch) which differ in their level of maturity.
+
+At its core Panko is a regular API service with a database backend.
+
+Events are published to Panko via Direct publisher in Ocata while in
+Pike Direct publisher was deprecated and will be removed. For that
+reason Panko publisher was added.
+
+* Direct publisher `deprecation <https://docs.openstack.org/releasenotes/panko/unreleased.html#deprecation-notes>`__ (ceilometer/publisher/direct.py) was done under this `commit <https://git.io/vd98b>`__.
+
+Another mechanism that was deprecated in Pike is dispatchers which were
+used to send data specified by publishers. So were
+{event,meter}_dispatchers options in ceilometer.conf
+
+* Panko dispatcher `deprecation <https://docs.openstack.org/releasenotes/panko/unreleased.html#deprecation-notes>`__.
+* `Notes <https://docs.openstack.org/releasenotes/ceilometer/ocata.html#deprecation-notes>`__ on unneeded duplication of publishers and dispatchers.
+* A `discussion <http://lists.openstack.org/pipermail/openstack-dev/2017-April/115576.html>`__ on dispatchers vs publishers.
+
+This is instead done directly by publishers in Pike and Panko publisher is
+present in Panko's repository itself, not ceilometer repository.
+
+Panko first appeared in Ocata Ubuntu Cloud Archive.
+
+Ceilometer is able to query Panko's presence via Keystone catalog but
+does not define a publisher for sending event data to Panko by default.
+
+Proposed Change
+===============
+
+The new charm should include the following features:
+
+- Support SQLAlchemy-compatible databases as storage backends;
+- HA support;
+- TLS support;
+- integration with Ceilometer charm.
+
+Alternatives
+------------
+
+None for historical event data within OpenStack.
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  dmitriis
+
+Gerrit Topic
+------------
+
+Use Gerrit topic "panko-charm" for all patches related to this spec.
+
+.. code-block:: bash
+
+    git-review -t panko-charm
+
+Work Items
+----------
+
+Reactive Interfaces
++++++++++++++++++++
+
+- interface: panko
+
+Provide Panko charm
++++++++++++++++++++++
+
+- Create a charm layer based on openstack-api layer;
+- Add support for upgrading Panko (schema changes);
+- Add support for deploying Panko in a highly available configuration;
+- Add support for the Panko to display workload status;
+- Add support TLS endpoints;
+- Charm should have unit and functional tests.
+
+Update Ceilometer Charm
++++++++++++++++++++++++++++++++++
+
+- Support for deployment with Panko (by specifying publishers correctly
+  in event_pipeline.yaml for both Ocata and Pike+).
+
+Mojo specification deploying and testing Panko
+++++++++++++++++++++++++++++++++++++++++++++++++
+
+- Update HA Mojo spec for deploying Panko in an HA configuration.
+
+Update telemetry bundle
++++++++++++++++++++++++
+
+- Update telemetry bundle to deploy Panko
+
+Repositories
+------------
+
+A new git repository will be required for the Panko charm:
+
+.. code-block:: bash
+
+    git://git.openstack.org/openstack/charm-panko
+
+Documentation
+-------------
+
+The Panko charm should contain a README with instructions on deploying the
+charm. A blog post is optional but would be a useful addition.
+
+Security
+--------
+
+No additional security concerns.
+
+Testing
+-------
+
+Code changes will be covered by unit tests; functional testing will be done
+using a combination of Amulet, Bundle tester and Mojo specification.
+
+Dependencies
+============
+
+- No dependencies outside of this specification.