* [Ubuntu 20.04](../appendix/Install-on-Ubuntu-20.md)
* [Ubuntu 18.04](../appendix/Install-on-Ubuntu-18.md)
* [CentOS 8](../appendix/Install-on-Centos-8.md)
- * [CentOS 7.2](../appendix/Install-on-Centos-7.md)
These OS-specific instructions can also be found in executable form
in the `vagrant/` directory.
* [Docker](https://github.com/mediagis/nominatim-docker)
* [Docker on Kubernetes](https://github.com/peter-evans/nominatim-k8s)
+ * [Kubernetes with Helm](https://github.com/robjuz/helm-charts/blob/master/charts/nominatim/README.md)
* [Ansible](https://github.com/synthesio/infra-ansible-nominatim)
## Prerequisites
### Software
+!!! Warning
+ For larger installations you **must have** PostgreSQL 11+ and Postgis 3+
+ otherwise import and queries will be slow to the point of being unusable.
+
For compiling:
* [cmake](https://cmake.org/)
For running Nominatim:
- * [PostgreSQL](https://www.postgresql.org) (9.3+ will work, 11+ strongly recommended)
- * [PostGIS](https://postgis.net) (2.2+)
+ * [PostgreSQL](https://www.postgresql.org) (9.5+ will work, 11+ strongly recommended)
+ * [PostGIS](https://postgis.net) (2.2+ will work, 3.0+ strongly recommended)
* [Python 3](https://www.python.org/) (3.6+)
* [Psycopg2](https://www.psycopg.org) (2.7+)
* [Python Dotenv](https://github.com/theskumar/python-dotenv)
* [psutil](https://github.com/giampaolo/psutil)
* [Jinja2](https://palletsprojects.com/p/jinja/)
* [PyICU](https://pypi.org/project/PyICU/)
+ * [PyYaml](https://pyyaml.org/) (5.1+)
+ * [datrie](https://github.com/pytries/datrie)
* [PHP](https://php.net) (7.0 or later)
* PHP-pgsql
* PHP-intl (bundled with PHP)