Adding Zookeeper charm

Change-Id: I86d907be64fc4c7bee4a6f118fea0be30e606927
Signed-off-by: sousaedu <eduardo.sousa@canonical.com>

installers/charm/zookeeper-k8s/.gitignore

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+release/
+__pycache__
+.tox

installers/charm/zookeeper-k8s/.yamllint.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+---
+
+extends: default
+rules:
+  line-length: disable
+yaml-files:
+  - '*.yaml'
+  - '*.yml'
+  - '.yamllint'
+ignore: |
+ reactive/
+ .tox
+ release/

installers/charm/zookeeper-k8s/README.md

+<!-- Copyright 2021 Canonical Ltd.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may
+not use this file except in compliance with the License. You may obtain
+a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+License for the specific language governing permissions and limitations
+under the License.
+
+For those usages not covered by the Apache License, Version 2.0 please
+contact: legal@canonical.com
+
+To get in touch with the maintainers, please contact:
+osm-charmers@lists.launchpad.net -->
+
+# Overview
+
+Zookeeper for Juju CAAS
+
+
+## Testing
+
+The tests of this charm are done using tox and Zaza.
+
+
+
+### Prepare environment
+
+The machine in which the tests are run needs access to a juju k8s controller. The easiest way to approach this is by executing the following commands:
+
+```
+sudo apt install tox -y
+sudo snap install microk8s --classic
+sudo snap install juju
+
+microk8s.status --wait-ready
+microk8s.enable storage dashboard dns
+
+juju bootstrap microk8s k8s-cloud
+```
+
+If /usr/bin/python does not exist, you should probably need to do this:
+```
+sudo ln -s /usr/bin/python3 /usr/bin/python
+```
+
+### Build Charm
+
+**Download dependencies:**
+```
+mkdir -p ~/charm/layers ~/charm/builds
+cd ~/charm/layers
+git clone https://git.launchpad.net/charm-k8s-zookeeper zookeeper-k8s
+git clone https://git.launchpad.net/charm-osm-common osm-common
+```
+
+**Charm structure:**
+```
+├── config.yaml
+├── icon.svg
+├── layer.yaml
+├── metadata.yaml
+├── reactive
+│   ├── spec_template.yaml
+│   └── zookeeper.py
+├── README.md
+├── test-requirements.txt
+├── tests
+│   ├── basic_deployment.py
+│   ├── bundles
+│   │   ├── zookeeper-ha.yaml
+│   │   └── zookeeper.yaml
+│   └── tests.yaml
+└── tox.ini
+```
+
+**Setup environment variables:**
+
+```
+export CHARM_LAYERS_DIR=~/charm/layers
+export CHARM_BUILD_DIR=~/charm/builds
+```
+
+**Build:**
+```
+charm build ~/charm/layers/zookeeper-k8s
+mkdir ~/charm/layers/zookeeper-k8s/tests/build/
+mv ~/charm/builds/zookeeper-k8s ~/charm/layers/zookeeper-k8s/tests/build/
+```
+
+### Test charm with Tox
+
+```
+cd ~/charm/layers/zookeeper-k8s
+tox -e func
+```
\ No newline at end of file

installers/charm/zookeeper-k8s/config.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+options:
+    client-port:
+        description: Zookeeper client port
+        type: int
+        default: 2181
+    server-port:
+        description: Zookeeper server port
+        type: int
+        default: 2888
+    leader-election-port:
+        description: Zookeeper leader-election port
+        type: int
+        default: 3888
+    zookeeper-units:
+        description: Zookeeper zookeeper-units
+        type: int
+        default: 1
+    image:
+        description: Zookeeper image to use
+        type: string
+        default: rocks.canonical.com:443/k8s.gcr.io/kubernetes-zookeeper:1.0-3.4.10

installers/charm/zookeeper-k8s/layer.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+includes:
+  - "layer:caas-base"
+  - 'layer:osm-common'
+  - 'layer:status'
+  - 'layer:leadership'
+  - "interface:zookeeper"
+
+repo: https://code.launchpad.net/osm-k8s-bundle

installers/charm/zookeeper-k8s/metadata.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+name: zookeeper-k8s
+summary: "zookeeper charm for Kubernetes."
+maintainers:
+    - "SolutionsQA <solutionsqa@lists.canonical.com>"
+description: |
+  A CAAS charm to deploy zookeeper.
+tags:
+    - "application"
+series:
+    - kubernetes
+provides:
+    zookeeper:
+        interface: zookeeper
+storage:
+    database:
+        type: filesystem
+        location: /var/lib/zookeeper
+deployment:
+    type: stateful
+    service: cluster

installers/charm/zookeeper-k8s/reactive/spec_template.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+version: 2
+containers:
+  - name: %(name)s
+    image: %(docker_image_path)s
+    kubernetes:
+      readinessProbe:
+        tcpSocket:
+          port: %(client-port)s
+        initialDelaySeconds: 10
+        timeoutSeconds: 5
+        failureThreshold: 6
+        successThreshold: 1
+      livenessProbe:
+        tcpSocket:
+          port: %(client-port)s
+        initialDelaySeconds: 20
+    ports:
+    - containerPort: %(client-port)s
+      name: client
+    - containerPort: %(server-port)s
+      name: server
+    - containerPort: %(leader-election-port)s
+      name: leader-election
+    config:
+        ALLOW_ANONYMOUS_LOGIN: 'yes'
+    command:
+    - sh
+    - -c
+    - "start-zookeeper \
+      --servers=%(zookeeper-units)s \
+      --data_dir=/var/lib/zookeeper/data \
+      --data_log_dir=/var/lib/zookeeper/data/log \
+      --conf_dir=/opt/zookeeper/conf \
+      --client_port=%(client-port)s \
+      --election_port=%(leader-election-port)s \
+      --server_port=%(server-port)s \
+      --tick_time=2000 \
+      --init_limit=10 \
+      --sync_limit=5 \
+      --heap=512M \
+      --max_client_cnxns=60 \
+      --snap_retain_count=3 \
+      --purge_interval=12 \
+      --max_session_timeout=40000 \
+      --min_session_timeout=4000 \
+      --log_level=INFO"
+    # readinessProbe:
+    #   exec:
+    #     command:
+    #     - sh
+    #     - -c
+    #     - "zookeeper-ready 2181"
+    #   initialDelaySeconds: 10
+    #   timeoutSeconds: 5
+    #   failureThreshold: 6
+    #   successThreshold: 1
+    # livenessProbe:
+    #   exec:
+    #     command:
+    #     - sh
+    #     - -c
+    #     - "zookeeper-ready 2181"
+    #   initialDelaySeconds: 20

installers/charm/zookeeper-k8s/reactive/zookeeper.py

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+from charms import layer
+from charms.layer.caas_base import pod_spec_set
+from charms.reactive import endpoint_from_flag
+from charms.reactive import when, when_not, hook
+from charms.reactive.flags import set_flag, clear_flag
+from charmhelpers.core.hookenv import (
+    log,
+    metadata,
+    config,
+)
+
+from charms.osm.k8s import is_pod_up, get_service_ip
+
+
+@hook("upgrade-charm")
+@when("leadership.is_leader")
+def upgrade():
+    clear_flag("zookeeper-k8s.configured")
+
+
+@when("config.changed")
+@when("leadership.is_leader")
+def config_changed():
+    clear_flag("zookeeper-k8s.configured")
+
+
+@when_not("zookeeper-k8s.configured")
+@when("leadership.is_leader")
+def configure():
+    layer.status.maintenance("Configuring zookeeper-k8s container")
+    try:
+        spec = make_pod_spec()
+        log("set pod spec:\n{}".format(spec))
+        pod_spec_set(spec)
+        set_flag("zookeeper-k8s.configured")
+
+    except Exception as e:
+        layer.status.blocked("k8s spec failed to deploy: {}".format(e))
+
+
+@when("zookeeper-k8s.configured")
+def non_leader():
+    layer.status.active("ready")
+
+
+@when_not("leadership.is_leader")
+def non_leaders_active():
+    layer.status.active("ready")
+
+
+@when("zookeeper.joined")
+@when("zookeeper-k8s.configured")
+def send_config():
+    layer.status.maintenance("Sending Zookeeper configuration")
+    if not is_pod_up("zookeeper"):
+        log("The pod is not ready.")
+        return
+
+    zookeeper = endpoint_from_flag("zookeeper.joined")
+    if zookeeper:
+        service_ip = get_service_ip("zookeeper")
+        if service_ip:
+            zookeeper.send_connection(
+                get_zookeeper_client_port(), get_zookeeper_client_port(), service_ip,
+            )
+            layer.status.active("ready")
+
+
+def make_pod_spec():
+    """Make pod specification for Kubernetes
+
+    Returns:
+        pod_spec: Pod specification for Kubernetes
+    """
+    with open("reactive/spec_template.yaml") as spec_file:
+        pod_spec_template = spec_file.read()
+
+    md = metadata()
+    cfg = config()
+    data = {"name": md.get("name"), "docker_image_path": cfg.get("image")}
+    data.update(cfg)
+    return pod_spec_template % data
+
+
+def get_zookeeper_client_port():
+    """Returns Zookeeper port"""
+    cfg = config()
+    return cfg.get("client-port")

installers/charm/zookeeper-k8s/test-requirements.txt

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+git+https://github.com/davigar15/zaza.git#egg=zaza
+git+https://github.com/python-zk/kazoo

installers/charm/zookeeper-k8s/tests/basic_deployment.py

+#!/usr/bin/python3
+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+import unittest
+import zaza.model as model
+from kazoo.client import KazooClient
+
+
+def get_zookeeper_uri():
+    zookeeper_uri = ""
+    zookeeper_units = model.get_status().applications["zookeeper-k8s"]["units"]
+    for i, unit_name in enumerate(zookeeper_units.keys()):
+        if i:
+            zookeeper_uri += ","
+        unit_ip = zookeeper_units[unit_name]["address"]
+        unit_port = 2181
+        zookeeper_uri += "{}:{}".format(unit_ip, unit_port)
+
+    return zookeeper_uri
+
+
+class BasicDeployment(unittest.TestCase):
+    def test_get_zookeeper_uri(self):
+        get_zookeeper_uri()
+
+    def test_zookeeper_connection(self):
+        zookeeper_uri = get_zookeeper_uri()
+        zk = KazooClient(zookeeper_uri)
+        self.assertEqual(zk.state, "LOST")
+        zk.start()
+        self.assertEqual(zk.state, "CONNECTED")
+        zk.stop()
+        self.assertEqual(zk.state, "LOST")
+
+    def test_zookeeper_create_node(self):
+        zookeeper_uri = get_zookeeper_uri()
+        zk = KazooClient(hosts=zookeeper_uri, read_only=True)
+        zk.start()
+
+        zk.ensure_path("/create/new")
+        self.assertTrue(zk.exists("/create/new"))
+
+        zk.create("/create/new/node", b"a value")
+        self.assertTrue(zk.exists("/create/new/node"))
+
+        zk.stop()
+
+    def test_zookeeper_reading_data(self):
+        zookeeper_uri = get_zookeeper_uri()
+        zk = KazooClient(hosts=zookeeper_uri, read_only=True)
+        zk.start()
+
+        zk.ensure_path("/reading/data")
+        zk.create("/reading/data/node", b"a value")
+
+        data, stat = zk.get("/reading/data")
+        self.assertEqual(data.decode("utf-8"), "")
+
+        children = zk.get_children("/reading/data")
+        self.assertEqual(len(children), 1)
+        self.assertEqual("node", children[0])
+
+        data, stat = zk.get("/reading/data/node")
+        self.assertEqual(data.decode("utf-8"), "a value")
+        zk.stop()
+
+    def test_zookeeper_updating_data(self):
+        zookeeper_uri = get_zookeeper_uri()
+        zk = KazooClient(hosts=zookeeper_uri, read_only=True)
+        zk.start()
+
+        zk.ensure_path("/updating/data")
+        zk.create("/updating/data/node", b"a value")
+
+        data, stat = zk.get("/updating/data/node")
+        self.assertEqual(data.decode("utf-8"), "a value")
+
+        zk.set("/updating/data/node", b"b value")
+        data, stat = zk.get("/updating/data/node")
+        self.assertEqual(data.decode("utf-8"), "b value")
+        zk.stop()
+
+    def test_zookeeper_deleting_data(self):
+        zookeeper_uri = get_zookeeper_uri()
+        zk = KazooClient(hosts=zookeeper_uri, read_only=True)
+        zk.start()
+
+        zk.ensure_path("/deleting/data")
+        zk.create("/deleting/data/node", b"a value")
+
+        zk.delete("/deleting/data/node", recursive=True)
+
+        self.assertFalse(zk.exists("/deleting/data/node"))
+        self.assertTrue(zk.exists("/deleting/data"))
+        data, stat = zk.get("/deleting/data")
+        self.assertEqual(stat.numChildren, 0)
+        zk.delete("/deleting", recursive=True)
+        self.assertFalse(zk.exists("/deleting"))
+        zk.stop()

installers/charm/zookeeper-k8s/tests/bundles/zookeeper-ha.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+bundle: kubernetes
+applications:
+  zookeeper-k8s:
+    charm: '../../release/'
+    scale: 2
+    options:
+      zookeeper-units: 2
+    series: kubernetes
+    storage:
+      database: 50M

installers/charm/zookeeper-k8s/tests/bundles/zookeeper.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+bundle: kubernetes
+applications:
+  zookeeper-k8s:
+    charm: '../../release/'
+    scale: 1
+    options:
+      zookeeper-units: 1
+    series: kubernetes
+    storage:
+      database: 50M

installers/charm/zookeeper-k8s/tests/tests.yaml

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+gate_bundles:
+  - zookeeper
+  - zookeeper-ha
+smoke_bundles:
+  - zookeeper
+tests:
+  - tests.basic_deployment.BasicDeployment

installers/charm/zookeeper-k8s/tox.ini

+# Copyright 2021 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+[tox]
+envlist = pep8
+skipsdist = True
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+whitelist_externals = juju
+passenv = HOME TERM CS_API_* OS_* AMULET_*
+deps = -r{toxinidir}/test-requirements.txt
+install_command =
+  pip install {opts} {packages}
+
+[testenv:build]
+basepython = python3
+passenv=HTTP_PROXY HTTPS_PROXY NO_PROXY
+setenv = CHARM_LAYERS_DIR = /tmp
+whitelist_externals = git
+                      charm
+                      rm
+                      mv
+commands =
+    rm -rf /tmp/canonical-osm /tmp/osm-common
+    rm -rf release
+    git clone https://git.launchpad.net/charm-osm-common /tmp/osm-common
+    charm build . --build-dir /tmp
+    mv /tmp/zookeeper-k8s/ release/
+
+[testenv:black]
+basepython = python3
+deps =
+    black
+    yamllint
+    flake8
+commands =
+    black --check --diff .
+    yamllint .
+    flake8 reactive/ --max-line-length=88
+    flake8 tests/ --max-line-length=88
+
+[testenv:pep8]
+basepython = python3
+deps=charm-tools
+commands = charm-proof
+
+[testenv:func-noop]
+basepython = python3
+commands =
+    true
+
+[testenv:func]
+basepython = python3
+commands = functest-run-suite
+
+[testenv:func-smoke]
+basepython = python3
+commands = functest-run-suite --keep-model --smoke
+
+[testenv:venv]
+commands = {posargs}