Update README.md

README.md

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-# devstack-minimal-vagrant
+# devstack-vagrant
+
+This is a simple Vagrant setup for devstack based on fedora.
+
+## Vagrant installation
+
+Make sure you have a current version of vagrant installed. In case of Linux make sure you have the vagrant-libvirt provider installed as well. For fedora 22 there is a nice article here:
+
+http://fedoramagazine.org/running-vagrant-fedora-22/
+
+Especially make sure, NFS-based shared folders are working as explained here:
+
+http://nts.strzibny.name/vagrant-nfs-exports-on-fedora-21/
+
+## Starting devstack VM
+
+It's very simple:
+
+```$ vagrant up```
+
+After a while (around 10 minutes) you have an openstack runnig, and you can access the web-interface at http://localhost:8080/
+
+## Configuration
+
+If you wanna customize your configuration, copy `config.yaml.sample` to `config.yaml` end edit accordingly.
+
+`local_conf` - set it to your own local.conf file for devstack configuration.
+
+`local_git_repos` - if you have your own local git repository (maybe with you own working branches) of all the relevant openstack.org repos, set the path to it here.
+
+`http_proxy` - although most necessary packages are already pre-installed in the base image, you can use a local caching http proxy to speed up the devstack setup procedure by setting a local proxy url. To set one up on fedora, just do: 
+```
+$ sudo dnf install squid
+```
+
+Edit `/etc/squid/squid.conf` and add the lines
+```
+cache_dir ufs /var/spool/squid 10000 16 256
+maximum_object_size 128 MB
+```
+
+Start it with
+```
+$ sudo systemctl enable squid
+$ sudo systemctl restart squid
+```
+
+`yum_repo` - if you use a caching proxy, you should also select a specific fedora repository mirror, that is caching friendly. This you can do here.
+
+`devpi_server`, `devpi_port`, `devpi_path` - You can easily setup a cache for the pip repository with `devpi-server`. Just do 
+```
+$ pip install --user devpi-server
+$ devpi-server --start --host=0.0.0.0
+```
+and uncomment these settings in `config.yaml`. You also have to change `devpi_server` to one of your local IPs.