# Installing OpenStack CLI Client on CentOS 7

You must have Python 2.7 and Python pip installed on your CentOS 7 host before you can install OpenStack CLI. Python is available, by default, on a CentOS 7 host.

For some reason, if Python and pip are not already installed, you must install Python and pip first, and then install OpenStack CLI.

Use the following commands to install Python and pip.

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```bash
yum install -y epel-release yum install -y gcc openssl-devel python-pip python-wheel python-virtualenv python-virtualenvwrapper
```

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## Install OpenStack CLI

Once Python and pip are installed, you are ready to set up a virtual environment and install OpenStack CLI on the virtual environment.

Follow the steps given below to install OpenStack CLI.

1\. Load the virtualenvwrapper setup script into your current shell session.

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```bash
# location of virtualenvwrapper.sh
source /usr/bin/virtualenvwrapper.sh
# directory to store virtual environments
export WORKON_HOME=$HOME/.virtenvs
```

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2\. Create a new virtual environment.

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```bash
mkvirtualenv os_cli
```

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The context switches to the newly created virtual environment.

3\. Upgrade pip.

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```bash
pip install pip --upgrade
```

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4\. Run the following command to set up the OpenStack CLI.

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```bash
pip install --upgrade --requirement https://raw.githubusercontent.com/platform9/support-locker/master/openstack-clients/requirements.txt --constraint https://raw.githubusercontent.com/openstack/requirements/stable/pike/upper-constraints.txt
```

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OpenStack CLI is successfully installed, and ready to be used on the CentOS 7 host.