Installing OpsCenter from the RPM package

Install the DataStax OpsCenter using Yum repositories on RedHat Enterprise Linux (RHEL), CentOS, and Oracle Linux (OL) distributions.

For a complete list of supported platforms, see DataStax OpsCenter – Supported Platforms.

The CentOS, RHEL, and OL OpsCenter packaged releases create an opscenter user. OpsCenter runs as a service and runs as the opscenter user. The service initialization script is located in /etc/init.d.

If the OpsCenter machine reboots, OpsCenter restarts automatically. To disable restart upon reboot:

$ sudo update-rc.d opscenterd disable

Prerequisites

Minimum hardware requirements for the machine on which OpsCenter runs:

2 CPU cores
2 GB of RAM available to OpsCenter

Permission and software requirements:

Yum package management utility.
For CentOS or RHEL 5.x, EPEL.
JRE or JDK (recommended) is only required if HTTPS or opscenterd/agent SSL is enabled (off by default). See installing the Oracle JDK or OpenJDK.
If you intend to use encryption for configuration values, install the pycrypto library.
DataStax recommends using a recent version of one of the major web browsers. OpsCenter does not support Internet Explorer or Microsoft Edge.
Python 2.6+.

Procedure

Open the Yum repository specification /etc/yum.repos.d for editing. For example:
```
$ sudo vi /etc/yum.repos.d/datastax.repo
```

In this file, add the repository for OpsCenter.

[opscenter] 
name = DataStax Repository
baseurl = http://rpm.datastax.com/community
enabled = 1
gpgcheck = 0

Install the OpsCenter package.
```
$ sudo yum install opscenter
```

For most users, the out-of-box configuration should work just fine. If necessary, you can configure OpsCenter for your environment.

Start OpsCenter:
```
$ sudo service opscenterd start
```
Connect to OpsCenter in a web browser using the following URL:
```
http://opscenter-host:8888/
```

What's next

Add an existing cluster or provision a new cluster.