From df41decd82ea911f1e46655c8d342f76b6972ead Mon Sep 17 00:00:00 2001
From: Hemanth Nakkina <hemanth.nakkina@canonical.com>
Date: Fri, 4 Aug 2023 03:39:54 +0530
Subject: [PATCH] Initial charm
Initial charm generated by running
- git init
- charmcraft init
- cookie cutter code from charm-ops-sunbeam
---
charms/gnocchi-k8s/.gitignore | 9 +
charms/gnocchi-k8s/CONTRIBUTING.md | 34 +++
charms/gnocchi-k8s/LICENSE | 202 ++++++++++++++++++
charms/gnocchi-k8s/README.md | 26 +++
charms/gnocchi-k8s/actions.yaml | 2 +
charms/gnocchi-k8s/charmcraft.yaml | 19 ++
charms/gnocchi-k8s/config.yaml | 27 +++
charms/gnocchi-k8s/metadata.yaml | 47 ++++
charms/gnocchi-k8s/pyproject.toml | 46 ++++
charms/gnocchi-k8s/requirements.txt | 8 +
charms/gnocchi-k8s/src/charm.py | 61 ++++++
charms/gnocchi-k8s/src/templates/ceph.conf.j2 | 22 ++
.../src/templates/parts/database-connection | 3 +
.../src/templates/parts/identity-data | 10 +
.../src/templates/parts/section-database | 3 +
.../src/templates/parts/section-federation | 10 +
.../src/templates/parts/section-identity | 2 +
.../src/templates/parts/section-middleware | 6 +
.../src/templates/parts/section-signing | 15 ++
.../src/templates/wsgi-gnocchi-api.conf | 27 +++
.../src/templates/wsgi-template.conf.j2 | 27 +++
charms/gnocchi-k8s/test-requirements.txt | 17 ++
.../tests/integration/test_charm.py | 35 +++
charms/gnocchi-k8s/tests/unit/test_charm.py | 68 ++++++
charms/gnocchi-k8s/tox.ini | 134 ++++++++++++
25 files changed, 860 insertions(+)
create mode 100644 charms/gnocchi-k8s/.gitignore
create mode 100644 charms/gnocchi-k8s/CONTRIBUTING.md
create mode 100644 charms/gnocchi-k8s/LICENSE
create mode 100644 charms/gnocchi-k8s/README.md
create mode 100644 charms/gnocchi-k8s/actions.yaml
create mode 100644 charms/gnocchi-k8s/charmcraft.yaml
create mode 100644 charms/gnocchi-k8s/config.yaml
create mode 100644 charms/gnocchi-k8s/metadata.yaml
create mode 100644 charms/gnocchi-k8s/pyproject.toml
create mode 100644 charms/gnocchi-k8s/requirements.txt
create mode 100755 charms/gnocchi-k8s/src/charm.py
create mode 100644 charms/gnocchi-k8s/src/templates/ceph.conf.j2
create mode 100644 charms/gnocchi-k8s/src/templates/parts/database-connection
create mode 100644 charms/gnocchi-k8s/src/templates/parts/identity-data
create mode 100644 charms/gnocchi-k8s/src/templates/parts/section-database
create mode 100644 charms/gnocchi-k8s/src/templates/parts/section-federation
create mode 100644 charms/gnocchi-k8s/src/templates/parts/section-identity
create mode 100644 charms/gnocchi-k8s/src/templates/parts/section-middleware
create mode 100644 charms/gnocchi-k8s/src/templates/parts/section-signing
create mode 100644 charms/gnocchi-k8s/src/templates/wsgi-gnocchi-api.conf
create mode 100644 charms/gnocchi-k8s/src/templates/wsgi-template.conf.j2
create mode 100644 charms/gnocchi-k8s/test-requirements.txt
create mode 100644 charms/gnocchi-k8s/tests/integration/test_charm.py
create mode 100644 charms/gnocchi-k8s/tests/unit/test_charm.py
create mode 100644 charms/gnocchi-k8s/tox.ini
diff --git a/charms/gnocchi-k8s/.gitignore b/charms/gnocchi-k8s/.gitignore
new file mode 100644
index 00000000..a26d707f
--- /dev/null
+++ b/charms/gnocchi-k8s/.gitignore
@@ -0,0 +1,9 @@
+venv/
+build/
+*.charm
+.tox/
+.coverage
+__pycache__/
+*.py[cod]
+.idea
+.vscode/
diff --git a/charms/gnocchi-k8s/CONTRIBUTING.md b/charms/gnocchi-k8s/CONTRIBUTING.md
new file mode 100644
index 00000000..20e88bcc
--- /dev/null
+++ b/charms/gnocchi-k8s/CONTRIBUTING.md
@@ -0,0 +1,34 @@
+# Contributing
+
+To make contributions to this charm, you'll need a working [development setup](https://juju.is/docs/sdk/dev-setup).
+
+You can create an environment for development with `tox`:
+
+```shell
+tox devenv -e integration
+source venv/bin/activate
+```
+
+## Testing
+
+This project uses `tox` for managing test environments. There are some pre-configured environments
+that can be used for linting and formatting code when you're preparing contributions to the charm:
+
+```shell
+tox run -e format # update your code according to linting rules
+tox run -e lint # code style
+tox run -e static # static type checking
+tox run -e unit # unit tests
+tox run -e integration # integration tests
+tox # runs 'format', 'lint', 'static', and 'unit' environments
+```
+
+## Build the charm
+
+Build the charm in this git repository using:
+
+```shell
+charmcraft pack
+```
+
+<!-- You may want to include any contribution/style guidelines in this document>
diff --git a/charms/gnocchi-k8s/LICENSE b/charms/gnocchi-k8s/LICENSE
new file mode 100644
index 00000000..8d771e18
--- /dev/null
+++ b/charms/gnocchi-k8s/LICENSE
@@ -0,0 +1,202 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
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diff --git a/charms/gnocchi-k8s/README.md b/charms/gnocchi-k8s/README.md
new file mode 100644
index 00000000..104b9d5e
--- /dev/null
+++ b/charms/gnocchi-k8s/README.md
@@ -0,0 +1,26 @@
+<!--
+Avoid using this README file for information that is maintained or published elsewhere, e.g.:
+
+* metadata.yaml > published on Charmhub
+* documentation > published on (or linked to from) Charmhub
+* detailed contribution guide > documentation or CONTRIBUTING.md
+
+Use links instead.
+-->
+
+# gnocchi-k8s
+
+Charmhub package name: operator-template
+More information: https://charmhub.io/gnocchi-k8s
+
+Describe your charm in one or two sentences.
+
+## Other resources
+
+<!-- If your charm is documented somewhere else other than Charmhub, provide a link separately. -->
+
+- [Read more](https://example.com)
+
+- [Contributing](CONTRIBUTING.md) <!-- or link to other contribution documentation -->
+
+- See the [Juju SDK documentation](https://juju.is/docs/sdk) for more information about developing and improving charms.
diff --git a/charms/gnocchi-k8s/actions.yaml b/charms/gnocchi-k8s/actions.yaml
new file mode 100644
index 00000000..88e6195d
--- /dev/null
+++ b/charms/gnocchi-k8s/actions.yaml
@@ -0,0 +1,2 @@
+# NOTE: no actions yet!
+{ }
diff --git a/charms/gnocchi-k8s/charmcraft.yaml b/charms/gnocchi-k8s/charmcraft.yaml
new file mode 100644
index 00000000..ab6239a8
--- /dev/null
+++ b/charms/gnocchi-k8s/charmcraft.yaml
@@ -0,0 +1,19 @@
+type: "charm"
+bases:
+ - build-on:
+ - name: "ubuntu"
+ channel: "22.04"
+ run-on:
+ - name: "ubuntu"
+ channel: "22.04"
+parts:
+ charm:
+ build-packages:
+ - git
+ - libffi-dev
+ - libssl-dev
+ charm-binary-python-packages:
+ - cryptography
+ - jsonschema
+ - jinja2
+ - git+https://opendev.org/openstack/charm-ops-sunbeam#egg=ops_sunbeam
diff --git a/charms/gnocchi-k8s/config.yaml b/charms/gnocchi-k8s/config.yaml
new file mode 100644
index 00000000..606b5357
--- /dev/null
+++ b/charms/gnocchi-k8s/config.yaml
@@ -0,0 +1,27 @@
+options:
+ debug:
+ default: False
+ description: Enable debug logging.
+ type: boolean
+ os-admin-hostname:
+ default: glance.juju
+ description: |
+ The hostname or address of the admin endpoints that should be advertised
+ in the glance image provider.
+ type: string
+ os-internal-hostname:
+ default: glance.juju
+ description: |
+ The hostname or address of the internal endpoints that should be advertised
+ in the glance image provider.
+ type: string
+ os-public-hostname:
+ default: glance.juju
+ description: |
+ The hostname or address of the internal endpoints that should be advertised
+ in the glance image provider.
+ type: string
+ region:
+ default: RegionOne
+ description: Space delimited list of OpenStack regions
+ type: string
diff --git a/charms/gnocchi-k8s/metadata.yaml b/charms/gnocchi-k8s/metadata.yaml
new file mode 100644
index 00000000..34b5cd74
--- /dev/null
+++ b/charms/gnocchi-k8s/metadata.yaml
@@ -0,0 +1,47 @@
+name: gnocchi-k8s
+summary: OpenStack gnocchi service
+maintainer: OpenStack Charmers <openstack-charmers@lists.ubuntu.com>
+description: |
+ OpenStack gnocchi provides an HTTP service for managing, selecting,
+ and claiming providers of classes of inventory representing available
+ resources in a cloud.
+ .
+version: 3
+bases:
+ - name: ubuntu
+ channel: 20.04/stable
+tags:
+- openstack
+
+containers:
+ gnocchi-api:
+ resource: gnocchi-api-image
+
+resources:
+ gnocchi-api-image:
+ type: oci-image
+ description: OCI image for OpenStack gnocchi
+
+requires:
+ database:
+ interface: mysql_client
+ limit: 1
+ identity-service:
+ interface: keystone
+ ingress-internal:
+ interface: ingress
+ optional: true
+ limit: 1
+ ingress-public:
+ interface: ingress
+ limit: 1
+ amqp:
+ interface: rabbitmq
+
+provides:
+ gnocchi:
+ interface: gnocchi
+
+peers:
+ peers:
+ interface: gnocchi-peer
diff --git a/charms/gnocchi-k8s/pyproject.toml b/charms/gnocchi-k8s/pyproject.toml
new file mode 100644
index 00000000..e10531c7
--- /dev/null
+++ b/charms/gnocchi-k8s/pyproject.toml
@@ -0,0 +1,46 @@
+# Testing tools configuration
+[tool.coverage.run]
+branch = true
+
+[tool.coverage.report]
+show_missing = true
+
+[tool.pytest.ini_options]
+minversion = "6.0"
+log_cli_level = "INFO"
+
+# Formatting tools configuration
+[tool.black]
+line-length = 99
+target-version = ["py38"]
+
+# Linting tools configuration
+[tool.ruff]
+line-length = 99
+select = ["E", "W", "F", "C", "N", "D", "I001"]
+extend-ignore = [
+ "D203",
+ "D204",
+ "D213",
+ "D215",
+ "D400",
+ "D404",
+ "D406",
+ "D407",
+ "D408",
+ "D409",
+ "D413",
+]
+ignore = ["E501", "D107"]
+extend-exclude = ["__pycache__", "*.egg_info"]
+per-file-ignores = {"tests/*" = ["D100","D101","D102","D103","D104"]}
+
+[tool.ruff.mccabe]
+max-complexity = 10
+
+[tool.codespell]
+skip = "build,lib,venv,icon.svg,.tox,.git,.mypy_cache,.ruff_cache,.coverage"
+
+[tool.pyright]
+include = ["src/**.py"]
+
diff --git a/charms/gnocchi-k8s/requirements.txt b/charms/gnocchi-k8s/requirements.txt
new file mode 100644
index 00000000..99f36564
--- /dev/null
+++ b/charms/gnocchi-k8s/requirements.txt
@@ -0,0 +1,8 @@
+ops
+jinja2
+git+https://github.com/openstack/charm-ops-sunbeam#egg=ops_sunbeam
+lightkube
+# These are only needeed if the charm relates to ceph
+git+https://github.com/openstack/charm-ops-interface-ceph-client#egg=interface_ceph_client
+# Charmhelpers is only present as interface_ceph_client uses it.
+git+https://github.com/juju/charm-helpers.git#egg=charmhelpers
diff --git a/charms/gnocchi-k8s/src/charm.py b/charms/gnocchi-k8s/src/charm.py
new file mode 100755
index 00000000..a6f5b8a4
--- /dev/null
+++ b/charms/gnocchi-k8s/src/charm.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+"""Gnocchi Operator Charm.
+
+This charm provide Gnocchi services as part of an OpenStack deployment
+"""
+
+import logging
+
+from ops.framework import StoredState
+from ops.main import main
+
+import ops_sunbeam.charm as sunbeam_charm
+
+logger = logging.getLogger(__name__)
+
+
+class GnocchiOperatorCharm(sunbeam_charm.OSBaseOperatorAPICharm):
+ """Charm the service."""
+
+ _state = StoredState()
+ service_name = "gnocchi-api"
+ wsgi_admin_script = '/usr/bin/gnocchi-api-wsgi'
+ wsgi_public_script = '/usr/bin/gnocchi-api-wsgi'
+
+ db_sync_cmds = [
+ ['/snap/bin/gnocchi.upgrade', '--log-file=/var/snap/gnocchi/common/log/gnocchi-upgrade.log']
+ ]
+
+ @property
+ def service_conf(self) -> str:
+ """Service default configuration file."""
+ return f"/etc/gnocchi/gnocchi.conf"
+
+ @property
+ def service_user(self) -> str:
+ """Service user file and directory ownership."""
+ return 'gnocchi'
+
+ @property
+ def service_group(self) -> str:
+ """Service group file and directory ownership."""
+ return 'gnocchi'
+
+ @property
+ def service_endpoints(self):
+ return [
+ {
+ 'service_name': 'gnocchi',
+ 'type': 'gnocchi',
+ 'description': "OpenStack Gnocchi API",
+ 'internal_url': f'{self.internal_url}',
+ 'public_url': f'{self.public_url}',
+ 'admin_url': f'{self.admin_url}'}]
+
+ @property
+ def default_public_ingress_port(self):
+ return 8041
+
+
+if __name__ == "__main__":
+ main(GnocchiOperatorCharm)
diff --git a/charms/gnocchi-k8s/src/templates/ceph.conf.j2 b/charms/gnocchi-k8s/src/templates/ceph.conf.j2
new file mode 100644
index 00000000..c293ae90
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/ceph.conf.j2
@@ -0,0 +1,22 @@
+###############################################################################
+# [ WARNING ]
+# ceph configuration file maintained in aso
+# local changes may be overwritten.
+###############################################################################
+[global]
+{% if ceph.auth -%}
+auth_supported = {{ ceph.auth }}
+mon host = {{ ceph.mon_hosts }}
+{% endif -%}
+keyring = /etc/ceph/$cluster.$name.keyring
+log to syslog = false
+err to syslog = false
+clog to syslog = false
+{% if ceph.rbd_features %}
+rbd default features = {{ ceph.rbd_features }}
+{% endif %}
+
+[client]
+{% if ceph_config.rbd_default_data_pool -%}
+rbd default data pool = {{ ceph_config.rbd_default_data_pool }}
+{% endif %}
diff --git a/charms/gnocchi-k8s/src/templates/parts/database-connection b/charms/gnocchi-k8s/src/templates/parts/database-connection
new file mode 100644
index 00000000..1fd70ce2
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/parts/database-connection
@@ -0,0 +1,3 @@
+{% if database.connection -%}
+connection = {{ database.connection }}
+{% endif -%}
diff --git a/charms/gnocchi-k8s/src/templates/parts/identity-data b/charms/gnocchi-k8s/src/templates/parts/identity-data
new file mode 100644
index 00000000..4b4af021
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/parts/identity-data
@@ -0,0 +1,10 @@
+{% if identity_service.internal_host -%}
+www_authenticate_uri = {{ identity_service.internal_protocol }}://{{ identity_service.internal_host }}:{{ identity_service.internal_port }}
+auth_url = {{ identity_service.internal_protocol }}://{{ identity_service.internal_host }}:{{ identity_service.internal_port }}
+auth_type = password
+project_domain_name = {{ identity_service.service_domain_name }}
+user_domain_name = {{ identity_service.service_domain_name }}
+project_name = {{ identity_service.service_project_name }}
+username = {{ identity_service.service_user_name }}
+password = {{ identity_service.service_password }}
+{% endif -%}
diff --git a/charms/gnocchi-k8s/src/templates/parts/section-database b/charms/gnocchi-k8s/src/templates/parts/section-database
new file mode 100644
index 00000000..986d9b10
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/parts/section-database
@@ -0,0 +1,3 @@
+[database]
+{% include "parts/database-connection" %}
+connection_recycle_time = 200
diff --git a/charms/gnocchi-k8s/src/templates/parts/section-federation b/charms/gnocchi-k8s/src/templates/parts/section-federation
new file mode 100644
index 00000000..65ee99ed
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/parts/section-federation
@@ -0,0 +1,10 @@
+{% if trusted_dashboards %}
+[federation]
+{% for dashboard_url in trusted_dashboards -%}
+trusted_dashboard = {{ dashboard_url }}
+{% endfor -%}
+{% endif %}
+{% for sp in fid_sps -%}
+[{{ sp['protocol-name'] }}]
+remote_id_attribute = {{ sp['remote-id-attribute'] }}
+{% endfor -%}
diff --git a/charms/gnocchi-k8s/src/templates/parts/section-identity b/charms/gnocchi-k8s/src/templates/parts/section-identity
new file mode 100644
index 00000000..7568a9a4
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/parts/section-identity
@@ -0,0 +1,2 @@
+[keystone_authtoken]
+{% include "parts/identity-data" %}
diff --git a/charms/gnocchi-k8s/src/templates/parts/section-middleware b/charms/gnocchi-k8s/src/templates/parts/section-middleware
new file mode 100644
index 00000000..e65f1d98
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/parts/section-middleware
@@ -0,0 +1,6 @@
+{% for section in sections -%}
+[{{section}}]
+{% for key, value in sections[section].items() -%}
+{{ key }} = {{ value }}
+{% endfor %}
+{%- endfor %}
diff --git a/charms/gnocchi-k8s/src/templates/parts/section-signing b/charms/gnocchi-k8s/src/templates/parts/section-signing
new file mode 100644
index 00000000..cb7d69ae
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/parts/section-signing
@@ -0,0 +1,15 @@
+{% if enable_signing -%}
+[signing]
+{% if certfile -%}
+certfile = {{ certfile }}
+{% endif -%}
+{% if keyfile -%}
+keyfile = {{ keyfile }}
+{% endif -%}
+{% if ca_certs -%}
+ca_certs = {{ ca_certs }}
+{% endif -%}
+{% if ca_key -%}
+ca_key = {{ ca_key }}
+{% endif -%}
+{% endif -%}
\ No newline at end of file
diff --git a/charms/gnocchi-k8s/src/templates/wsgi-gnocchi-api.conf b/charms/gnocchi-k8s/src/templates/wsgi-gnocchi-api.conf
new file mode 100644
index 00000000..b34c076e
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/wsgi-gnocchi-api.conf
@@ -0,0 +1,27 @@
+Listen {{ wsgi_config.public_port }}
+<VirtualHost *:{{ wsgi_config.public_port }}>
+ WSGIDaemonProcess {{ wsgi_config.group }} processes=3 threads=1 user={{ wsgi_config.user }} group={{ wsgi_config.group }} \
+ display-name=%{GROUP}
+ WSGIProcessGroup {{ wsgi_config.group }}
+ {% if ingress_internal.ingress_path -%}
+ WSGIScriptAlias {{ ingress_internal.ingress_path }} {{ wsgi_config.wsgi_public_script }}
+ {% endif -%}
+ WSGIScriptAlias / {{ wsgi_config.wsgi_public_script }}
+ WSGIApplicationGroup %{GLOBAL}
+ WSGIPassAuthorization On
+ <IfVersion >= 2.4>
+ ErrorLogFormat "%{cu}t %M"
+ </IfVersion>
+ ErrorLog {{ wsgi_config.error_log }}
+ CustomLog {{ wsgi_config.custom_log }} combined
+
+ <Directory /usr/bin>
+ <IfVersion >= 2.4>
+ Require all granted
+ </IfVersion>
+ <IfVersion < 2.4>
+ Order allow,deny
+ Allow from all
+ </IfVersion>
+ </Directory>
+</VirtualHost>
diff --git a/charms/gnocchi-k8s/src/templates/wsgi-template.conf.j2 b/charms/gnocchi-k8s/src/templates/wsgi-template.conf.j2
new file mode 100644
index 00000000..b34c076e
--- /dev/null
+++ b/charms/gnocchi-k8s/src/templates/wsgi-template.conf.j2
@@ -0,0 +1,27 @@
+Listen {{ wsgi_config.public_port }}
+<VirtualHost *:{{ wsgi_config.public_port }}>
+ WSGIDaemonProcess {{ wsgi_config.group }} processes=3 threads=1 user={{ wsgi_config.user }} group={{ wsgi_config.group }} \
+ display-name=%{GROUP}
+ WSGIProcessGroup {{ wsgi_config.group }}
+ {% if ingress_internal.ingress_path -%}
+ WSGIScriptAlias {{ ingress_internal.ingress_path }} {{ wsgi_config.wsgi_public_script }}
+ {% endif -%}
+ WSGIScriptAlias / {{ wsgi_config.wsgi_public_script }}
+ WSGIApplicationGroup %{GLOBAL}
+ WSGIPassAuthorization On
+ <IfVersion >= 2.4>
+ ErrorLogFormat "%{cu}t %M"
+ </IfVersion>
+ ErrorLog {{ wsgi_config.error_log }}
+ CustomLog {{ wsgi_config.custom_log }} combined
+
+ <Directory /usr/bin>
+ <IfVersion >= 2.4>
+ Require all granted
+ </IfVersion>
+ <IfVersion < 2.4>
+ Order allow,deny
+ Allow from all
+ </IfVersion>
+ </Directory>
+</VirtualHost>
diff --git a/charms/gnocchi-k8s/test-requirements.txt b/charms/gnocchi-k8s/test-requirements.txt
new file mode 100644
index 00000000..8057d2c6
--- /dev/null
+++ b/charms/gnocchi-k8s/test-requirements.txt
@@ -0,0 +1,17 @@
+# This file is managed centrally. If you find the need to modify this as a
+# one-off, please don't. Intead, consult #openstack-charms and ask about
+# requirements management in charms via bot-control. Thank you.
+charm-tools>=2.4.4
+coverage>=3.6
+mock>=1.2
+flake8>=2.2.4,<=2.4.1
+pyflakes==2.1.1
+stestr>=2.2.0
+requests>=2.18.4
+psutil
+# oslo.i18n dropped py35 support
+oslo.i18n<4.0.0
+git+https://github.com/openstack-charmers/zaza.git#egg=zaza
+git+https://github.com/openstack-charmers/zaza-openstack-tests.git#egg=zaza.openstack
+pytz # workaround for 14.04 pip/tox
+pyudev # for ceph-* charm unit tests (not mocked?)
diff --git a/charms/gnocchi-k8s/tests/integration/test_charm.py b/charms/gnocchi-k8s/tests/integration/test_charm.py
new file mode 100644
index 00000000..6823bbd9
--- /dev/null
+++ b/charms/gnocchi-k8s/tests/integration/test_charm.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+# Copyright 2023 Canonical Ltd.
+# See LICENSE file for licensing details.
+
+import asyncio
+import logging
+from pathlib import Path
+
+import pytest
+import yaml
+from pytest_operator.plugin import OpsTest
+
+logger = logging.getLogger(__name__)
+
+METADATA = yaml.safe_load(Path("./metadata.yaml").read_text())
+APP_NAME = METADATA["name"]
+
+
+@pytest.mark.abort_on_fail
+async def test_build_and_deploy(ops_test: OpsTest):
+ """Build the charm-under-test and deploy it together with related charms.
+
+ Assert on the unit status before any relations/configurations take place.
+ """
+ # Build and deploy charm from local source folder
+ charm = await ops_test.build_charm(".")
+ resources = {"httpbin-image": METADATA["resources"]["httpbin-image"]["upstream-source"]}
+
+ # Deploy the charm and wait for active/idle status
+ await asyncio.gather(
+ ops_test.model.deploy(charm, resources=resources, application_name=APP_NAME),
+ ops_test.model.wait_for_idle(
+ apps=[APP_NAME], status="active", raise_on_blocked=True, timeout=1000
+ ),
+ )
diff --git a/charms/gnocchi-k8s/tests/unit/test_charm.py b/charms/gnocchi-k8s/tests/unit/test_charm.py
new file mode 100644
index 00000000..ba8a0efd
--- /dev/null
+++ b/charms/gnocchi-k8s/tests/unit/test_charm.py
@@ -0,0 +1,68 @@
+# Copyright 2023 Canonical Ltd.
+# See LICENSE file for licensing details.
+#
+# Learn more about testing at: https://juju.is/docs/sdk/testing
+
+import unittest
+
+import ops
+import ops.testing
+from charm import GnocchiK8SCharm
+
+
+class TestCharm(unittest.TestCase):
+ def setUp(self):
+ self.harness = ops.testing.Harness(GnocchiK8SCharm)
+ self.addCleanup(self.harness.cleanup)
+ self.harness.begin()
+
+ def test_httpbin_pebble_ready(self):
+ # Expected plan after Pebble ready with default config
+ expected_plan = {
+ "services": {
+ "httpbin": {
+ "override": "replace",
+ "summary": "httpbin",
+ "command": "gunicorn -b 0.0.0.0:80 httpbin:app -k gevent",
+ "startup": "enabled",
+ "environment": {"GUNICORN_CMD_ARGS": "--log-level info"},
+ }
+ },
+ }
+ # Simulate the container coming up and emission of pebble-ready event
+ self.harness.container_pebble_ready("httpbin")
+ # Get the plan now we've run PebbleReady
+ updated_plan = self.harness.get_container_pebble_plan("httpbin").to_dict()
+ # Check we've got the plan we expected
+ self.assertEqual(expected_plan, updated_plan)
+ # Check the service was started
+ service = self.harness.model.unit.get_container("httpbin").get_service("httpbin")
+ self.assertTrue(service.is_running())
+ # Ensure we set an ActiveStatus with no message
+ self.assertEqual(self.harness.model.unit.status, ops.ActiveStatus())
+
+ def test_config_changed_valid_can_connect(self):
+ # Ensure the simulated Pebble API is reachable
+ self.harness.set_can_connect("httpbin", True)
+ # Trigger a config-changed event with an updated value
+ self.harness.update_config({"log-level": "debug"})
+ # Get the plan now we've run PebbleReady
+ updated_plan = self.harness.get_container_pebble_plan("httpbin").to_dict()
+ updated_env = updated_plan["services"]["httpbin"]["environment"]
+ # Check the config change was effective
+ self.assertEqual(updated_env, {"GUNICORN_CMD_ARGS": "--log-level debug"})
+ self.assertEqual(self.harness.model.unit.status, ops.ActiveStatus())
+
+ def test_config_changed_valid_cannot_connect(self):
+ # Trigger a config-changed event with an updated value
+ self.harness.update_config({"log-level": "debug"})
+ # Check the charm is in WaitingStatus
+ self.assertIsInstance(self.harness.model.unit.status, ops.WaitingStatus)
+
+ def test_config_changed_invalid(self):
+ # Ensure the simulated Pebble API is reachable
+ self.harness.set_can_connect("httpbin", True)
+ # Trigger a config-changed event with an updated value
+ self.harness.update_config({"log-level": "foobar"})
+ # Check the charm is in BlockedStatus
+ self.assertIsInstance(self.harness.model.unit.status, ops.BlockedStatus)
diff --git a/charms/gnocchi-k8s/tox.ini b/charms/gnocchi-k8s/tox.ini
new file mode 100644
index 00000000..31301b80
--- /dev/null
+++ b/charms/gnocchi-k8s/tox.ini
@@ -0,0 +1,134 @@
+# Operator charm (with zaza): tox.ini
+
+[tox]
+envlist = pep8,py3
+skipsdist = True
+# NOTE: Avoid build/test env pollution by not enabling sitepackages.
+sitepackages = False
+# NOTE: Avoid false positives by not skipping missing interpreters.
+skip_missing_interpreters = False
+# NOTES:
+# * We avoid the new dependency resolver by pinning pip < 20.3, see
+# https://github.com/pypa/pip/issues/9187
+# * Pinning dependencies requires tox >= 3.2.0, see
+# https://tox.readthedocs.io/en/latest/config.html#conf-requires
+# * It is also necessary to pin virtualenv as a newer virtualenv would still
+# lead to fetching the latest pip in the func* tox targets, see
+# https://stackoverflow.com/a/38133283
+requires = pip < 20.3
+ virtualenv < 20.0
+# NOTE: https://wiki.canonical.com/engineering/OpenStack/InstallLatestToxOnOsci
+minversion = 3.2.0
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+ PYTHONHASHSEED=0
+ CHARM_DIR={envdir}
+install_command =
+ pip install {opts} {packages}
+commands = stestr run --slowest {posargs}
+whitelist_externals =
+ git
+ add-to-archive.py
+ bash
+ charmcraft
+passenv = HOME TERM CS_* OS_* TEST_*
+deps = -r{toxinidir}/test-requirements.txt
+
+[testenv:py35]
+basepython = python3.5
+# python3.5 is irrelevant on a focal+ charm.
+commands = /bin/true
+
+[testenv:py36]
+basepython = python3.6
+deps = -r{toxinidir}/requirements.txt
+ -r{toxinidir}/test-requirements.txt
+
+[testenv:py37]
+basepython = python3.7
+deps = -r{toxinidir}/requirements.txt
+ -r{toxinidir}/test-requirements.txt
+
+[testenv:py38]
+basepython = python3.8
+deps = -r{toxinidir}/requirements.txt
+ -r{toxinidir}/test-requirements.txt
+
+[testenv:py3]
+basepython = python3
+deps = -r{toxinidir}/requirements.txt
+ -r{toxinidir}/test-requirements.txt
+
+[testenv:pep8]
+basepython = python3
+deps = -r{toxinidir}/requirements.txt
+ -r{toxinidir}/test-requirements.txt
+commands = flake8 {posargs} src unit_tests tests
+
+[testenv:cover]
+# Technique based heavily upon
+# https://github.com/openstack/nova/blob/master/tox.ini
+basepython = python3
+deps = -r{toxinidir}/requirements.txt
+ -r{toxinidir}/test-requirements.txt
+setenv =
+ {[testenv]setenv}
+ PYTHON=coverage run
+commands =
+ coverage erase
+ stestr run --slowest {posargs}
+ coverage combine
+ coverage html -d cover
+ coverage xml -o cover/coverage.xml
+ coverage report
+
+[coverage:run]
+branch = True
+concurrency = multiprocessing
+parallel = True
+source =
+ .
+omit =
+ .tox/*
+ */charmhelpers/*
+ unit_tests/*
+
+[testenv:venv]
+basepython = python3
+commands = {posargs}
+
+[testenv:build]
+basepython = python3
+deps = -r{toxinidir}/build-requirements.txt
+commands =
+ charmcraft build
+
+[testenv:func-noop]
+basepython = python3
+commands =
+ functest-run-suite --help
+
+[testenv:func]
+basepython = python3
+commands =
+ functest-run-suite --keep-model
+
+[testenv:func-smoke]
+basepython = python3
+commands =
+ functest-run-suite --keep-model --smoke
+
+[testenv:func-dev]
+basepython = python3
+commands =
+ functest-run-suite --keep-model --dev
+
+[testenv:func-target]
+basepython = python3
+commands =
+ functest-run-suite --keep-model --bundle {posargs}
+
+[flake8]
+# Ignore E902 because the unit_tests directory is missing in the built charm.
+ignore = E402,E226,E902