diff --git a/README.md b/README.md
index 8fb4c7b..f5482ad 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,40 @@
-# stackhpc-openstack-tests
-Automated testing for StackHPC OpenStack
+# StackHPC OpenStack Tests
+
+Automated testing for StackHPC OpenStack.
+
+Provides test coverage of various aspects of OpenStack and related services, including:
+
+* OpenSearch
+* Prometheus
+
+Tests are written using [pytest](https://docs.pytest.org/).
+
+## Installation
+
+Clone this repository.
+
+Create a virtual environment.
+
+```sh
+python3 -m venv venv
+```
+
+Install stackhpc-openstack-tests and its dependencies.
+
+```sh
+venv/bin/pip install <path/to/repo> -r <path/to/repo>/requirements.txt
+```
+
+## Usage
+
+Run all tests provided.
+
+```sh
+py.test --pyargs stackhpc_openstack_tests
+```
+
+Or run tests from a specific submodule.
+
+```sh
+py.test --pyargs stackhpc_openstack_tests.test_prometheus
+```
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..8b58343
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+opensearch-py==2.5.*
+prometheus-api-client==0.5.*
+pytest-testinfra==10.1.*
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..7147947
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,33 @@
+[metadata]
+name = stackhpc-openstack-tests
+version = 0.1.0
+summary = Automated testing for StackHPC OpenStack
+description-file = README.md
+author = Mark Goddard
+author-email = mark@stackhpc.com
+url = https://github.com/stackhpc/stackhpc-openstack-tests
+python-requires = >=3.6
+classifier =
+    Environment :: OpenStack
+    Intended Audience :: Information Technology
+    Intended Audience :: System Administrators
+    License :: OSI Approved :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Programming Language :: Python
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3 :: Only
+    Programming Language :: Python :: Implementation :: CPython
+
+[files]
+packages =
+    stackhpc_openstack_tests
+
+[options]
+install_requires =
+    pytest-testinfra
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..3ae4c5c
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,18 @@
+# Copyright (c) 2024 StackHPC 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.
+
+import setuptools
+
+setuptools.setup()
diff --git a/stackhpc_openstack_tests/__init__.py b/stackhpc_openstack_tests/__init__.py
new file mode 100644
index 0000000..0e8b8f8
--- /dev/null
+++ b/stackhpc_openstack_tests/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2024 StackHPC 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.
diff --git a/stackhpc_openstack_tests/test_opensearch.py b/stackhpc_openstack_tests/test_opensearch.py
new file mode 100644
index 0000000..b750f88
--- /dev/null
+++ b/stackhpc_openstack_tests/test_opensearch.py
@@ -0,0 +1,62 @@
+# Copyright (c) 2024 StackHPC 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.
+
+# TODO:
+# * Dashboard login
+# * Cluster health
+
+from opensearchpy import OpenSearch
+import os
+import pytest
+
+from stackhpc_openstack_tests import utils
+
+
+@pytest.fixture
+def opensearch() -> OpenSearch:
+    """Pytest fixture that creates an OpenSearch API client."""
+    # https://opensearch.org/docs/latest/clients/python-low-level/
+    opensearch_hosts = os.environ["OPENSEARCH_HOSTS"].split(",")
+    opensearch_port = os.environ["OPENSEARCH_PORT"]
+    opensearch_hosts = [
+        {"host": host, "port": opensearch_port} for host in opensearch_hosts
+    ]
+    opensearch_tls = utils.str_to_bool(os.environ["OPENSEARCH_TLS"])
+    if opensearch_tls:
+        opensearch_verify_certs = utils.str_to_bool(
+            os.environ["OPENSEARCH_VERIFY_CERTS"]
+        )
+    else:
+        opensearch_verify_certs = True
+    return OpenSearch(
+        hosts=opensearch_hosts,
+        http_compress=True,
+        use_ssl=opensearch_tls,
+        verify_certs=opensearch_verify_certs,
+        ssl_show_warn=False,
+    )
+
+
+def test_opensearch_has_info_logs(opensearch):
+    """Check that OpenSearch has some INFO level logs."""
+    query = {
+        "query": {
+            "match": {
+                "log_level": "INFO",
+            }
+        }
+    }
+    # https://opensearch-project.github.io/opensearch-py/api-ref/clients/opensearch_client.html#opensearchpy.OpenSearch.search
+    result = opensearch.search(body=query, index="flog-*", size=1)
+    assert len(result["hits"]["hits"]) == 1
diff --git a/stackhpc_openstack_tests/test_prometheus.py b/stackhpc_openstack_tests/test_prometheus.py
new file mode 100644
index 0000000..7478ffa
--- /dev/null
+++ b/stackhpc_openstack_tests/test_prometheus.py
@@ -0,0 +1,41 @@
+# Copyright (c) 2024 StackHPC 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.
+
+import os
+from prometheus_api_client import PrometheusConnect
+import pytest
+
+
+@pytest.fixture
+def prom() -> PrometheusConnect:
+    """Pytest fixture that creates a Prometheus API client."""
+    # https://github.com/4n4nd/prometheus-api-client-python/
+    prometheus_url = os.environ["PROMETHEUS_URL"]
+    kwargs = {}
+    if "PROMETHEUS_USERNAME" in os.environ:
+        prometheus_username = os.environ["PROMETHEUS_USERNAME"]
+        prometheus_password = os.environ["PROMETHEUS_PASSWORD"]
+        kwargs["auth"] = (prometheus_username, prometheus_password)
+    return PrometheusConnect(url=prometheus_url, disable_ssl=True, **kwargs)
+
+
+def test_prometheus_connection(prom):
+    """Check that Prometheus is accessible."""
+    assert prom.check_prometheus_connection()
+
+
+def test_prometheus_node_exporter_metrics(prom):
+    """Check that expected node exporter metrics exist."""
+    metrics = prom.all_metrics()
+    assert "node_cpu_seconds_total" in metrics
diff --git a/stackhpc_openstack_tests/utils.py b/stackhpc_openstack_tests/utils.py
new file mode 100644
index 0000000..9b7b02b
--- /dev/null
+++ b/stackhpc_openstack_tests/utils.py
@@ -0,0 +1,18 @@
+# Copyright (c) 2024 StackHPC 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.
+
+
+def str_to_bool(v):
+    """Convert a boolean true/false string to a bool."""
+    return v.lower() == "true"