Installing DSE OpsCenter 6.1 from the RPM package

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

For a complete list of supported platforms, see 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.
Latest build of a Technology Compatibility Kit (TCK) Certified OpenJDK version 8 or Oracle Java SE Runtime Environment 8 (JRE or JDK). Earlier or later versions are not supported. See installing the Oracle JDK or OpenJDK.
Tip: Use OpsCenter Lifecycle Manager to automatically manage Java and JCE installs for DSE clusters.
DataStax recommends using a recent version of one of the major web browsers. OpsCenter does not support Internet Explorer or Microsoft Edge.

Important: End User License Agreement (EULA). By downloading DataStax products, you confirm that you agree to the processing of information as described in the DataStax website privacy policy and agree to the website terms of use.

Procedure

Open the Yum repository specification /etc/yum.repos.d/datastax.repo 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 = https://rpm.datastax.com/enterprise
enabled = 1
gpgcheck = 0

If you have enabled signature verification (gpgcheck=1), import the repository key:
```
sudo rpm --import https://rpm.datastax.com/rpm/repo_key 
```
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 in Lifecycle Manager.