Installing dependent packages

Procedure

To install the dependency packages, run the following commands:

yum install –y docker socat openvswitch python-cliff \
libvirt python-setuptools python-requests

If you use proxy servers for the Internet connectivity, perform the following steps in the httpproxy.conf file:

To navigate to the system directory, run the following command:
```
cd /etc/systemd/system
```
To create the docker.service.d directory, run the following command:
```
mkdir docker.service.d
```
To navigate to the docker.service.d directory, run the following command:
```
cd docker.service.d
```

If proxy does not require username and password:

To edit the http-proxy.conf file, run the following command:
```
vim http-proxy.conf
```

Add the following entries in the http-proxy.conf file:

[Service]
			Environment="HTTP_PROXY=<HTTP proxy URL and port number>"
			Environment="HTTPS_PROXY=<HTTPS proxy URL and port number>"
			Environment="NO_PROXY=localhost,
			127.0.0.1,<nps_vm_ip>,<nps_vm_hostname>"

Save and exit the http-proxy.conf file.
To edit the https-proxy.conf file, run for the following command:
```
https-proxy.conf
```

Add the following entries in the https-proxy.conf file:

[Service]
			Environment="HTTP_PROXY=<HTTP proxy URL and port number>"
			Environment="HTTPS_PROXY=<HTTPS proxy URL and port number>"
			Environment="NO_PROXY=localhost,127.0.0.1,<nps_vm_ip>,<nps_vm_hostname>"

Save and exit the https-proxy.conf file.

If proxy requires username and password:

To edit the http-proxy.conf file, run the following command:
```
vim http-proxy.conf
```

Add the following entries in the http-proxy.conf file:

[Service]
			Environment="HTTP_PROXY=http://{{ proxy_user }}:{{ proxy_password }}@<HTTP proxy URL and port
			number>"
			Environment="HTTPS_PROXY=http://{{ proxy_user }}:{{ proxy_password }}@<HTTPS proxy URL and port
			number>"
			Environment="NO_PROXY=localhost,127.0.0.1,<nps_vm_ip>,<nps_vm_hostname>"

Save and exit the http-proxy.conf file.
To edit the https-proxy.conf file, run the following command:
```
vim https-proxy.conf
```

Add the following entries in the https-proxy.conf file:

[Service]
			Environment="HTTP_PROXY=http://{{ proxy_user }}:{{ proxy_password }}@<HTTP proxy URL and port
			number>"
			Environment="HTTPS_PROXY=http://{{ proxy_user }}:{{ proxy_password }}@<HTTPS proxy URL and port
			number>"
			Environment="NO_PROXY=localhost,127.0.0.1,<nps_vm_ip>,<nps_vm_hostname>"

Save and exit the https-proxy.conf file.

To verify the status of Docker, run the following command:
```
systemctl status docker
```
Configure your NPS toolkit controller with your NTP server and synchronize the NPS toolkit controller with the NTP server. If required, update the time zone of your system.