--- /dev/null
+# Copyright 2020 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.
+[tox]
+envlist = pep8
+skipsdist = True
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+ PYTHONHASHSEED=0
+whitelist_externals = juju
+ sleep
+passenv = HOME TERM CS_API_* OS_* AMULET_*
+install_command =
+ pip install {opts} {packages}
+
+[testenv:build]
+basepython = python3
+passenv=HTTP_PROXY HTTPS_PROXY NO_PROXY
+setenv = CHARM_LAYERS_DIR = ../layers
+ CHARM_INTERFACES_DIR = ../interfaces/
+whitelist_externals = git
+ charm
+ rm
+ mv
+commands =
+ rm -rf release
+ rm -rf ../interfaces/mongodb
+ git clone https://git.launchpad.net/interface-mongodb ../interfaces/mongodb
+ charm build . --build-dir /tmp
+ mv /tmp/mon-k8s/ release/
+
+[testenv:lint]
+basepython = python3
+deps =
+ black
+ yamllint
+ flake8
+commands =
+ black --check --diff . --exclude "release/|.tox/"
+ yamllint .
+ flake8 reactive/ --max-line-length=100
+
+[testenv:pep8]
+basepython = python3
+deps=charm-tools
+commands = charm-proof
+
+[testenv:venv]
+commands = {posargs}