diff --git a/.gitignore b/.gitignore
index 172bf57..14a1bfc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 .tox
+build
diff --git a/layer.yaml b/layer.yaml
index dd35069..56aa403 100644
--- a/layer.yaml
+++ b/layer.yaml
@@ -1,3 +1,4 @@
 includes: ['layer:openstack-principle', 'interface:mysql-shared',
            'interface:rabbitmq', 'interface:keystone',
            'interface:hacluster', 'interface:openstack-ha']
+repo: 'https://github.com/openstack/charm-layer-openstack'
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..5625389
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,5 @@
+# Requirements to build the layer
+charm-tools
+ruamel.yaml==0.10.12
+simplejson
+flake8
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..729f836
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,26 @@
+[tox]
+skipsdist = True
+envlist = pep8,build
+
+[testenv]
+basepython = python2.7
+setenv = VIRTUAL_ENV={envdir}
+         PYTHONHASHSEED=0
+         TERM=linux
+         JUJU_REPOSITORY={toxinidir}/build
+passenv = http_proxy https_proxy
+install_command =
+  pip install {opts} {packages}
+deps =
+  -r{toxinidir}/requirements.txt
+whitelist_externals = /bin/true
+
+[testenv:build]
+commands =
+  charm-build --log-level DEBUG -o {toxinidir}/build .
+
+[testenv:venv]
+commands = {posargs}
+
+[testenv:pep8]
+commands = /bin/true