Solution Prerequisites

The following are the solution setup prerequisites.

Hardware requirements

For HA deployment, each machine in the cluster should have the following hardware specifications.

	Minimum requirement

	Minimum requirement
CPU	2 cores vCPU
RAM	4 GB
Disk	100 GB mounted on /
NICs	1 NIC

Software Requirements

OS Compatibility

We require the customer/partner to install the following software on the server.

Item	Version	Notes
CentOS Linux	release 7.7.1908 (Core)	Administrative privileges (root) are required to follow the deployment steps.
Red Hat Enterprise Linux	release 8.4 (Ootpa)	Administrative privileges (root) are required to follow the deployment steps.

Database Requirements

Item	Notes
MS SQL Server 2014, 2016 Express/ Standard/ Enterprise

Docker Engine Requirements

Item	Notes
Docker CE	Docker CE 18+
Docker-compose	Version 1.23.1

Browser Compatibility

Item	Version	Notes
Chrome	92.0.x
Firefox	Not tested
IE	Not tested	An on-demand testing cycle can be planned

Cisco Unified CCE Compatibility

11.6 (Enhanced & Premium)

Installation Steps

The Internet should be available on the machine where the application is being installed and connections on port 9242 should be allowed in the network firewall to carry out the installation steps. All the commands start with a # indicating that root user privileges are required to execute these commands. Trailing # is not a part of the command.

Allow ports in the firewall

For internal communication of docker swarm, you'll need to allow the communication (both inbound and outbound) on the ports: 8083/tcp,8084/tcp , 8085/tcp, 8086/tcp, 8087/tcp, 8844/tcp, 8834/tcp, 8443/tcp and 443/tcp.

To start the firewall on CentOS (if it isn't started already), execute the following commands. You'll have to execute these commands on all the cluster machines.:

systemctl enable firewalld
systemctl start firewalld

To allow the ports on CentOS firewall, you can execute the following commands. You'll have to execute these commands on all the cluster machines.

firewall-cmd --add-port=8083/tcp --permanent
firewall-cmd --add-port=8084/tcp --permanent
firewall-cmd --add-port=8085/tcp --permanent
firewall-cmd --add-port=8086/tcp --permanent
firewall-cmd --add-port=8087/tcp --permanent
firewall-cmd --add-port=8844/tcp --permanent
firewall-cmd --add-port=8834/tcp --permanent
firewall-cmd --add-port=8443/tcp --permanent
firewall-cmd --add-port=443/tcp --permanent
firewall-cmd --reload

Configure Log Rotation

Add the following lines in /etc/docker/daemon.json file (create the file if not there already) and restart the docker daemon using systemctl restart docker. Perform this step on all the machines in the cluster in case of HA deployment.

{
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "50m",
    "max-file": "3"
  }
}

Creating Databases

Create a database for UMM and Supervisor Tools services in the MSSQL server with suitable names and follow the application installation steps.

Installing Application

Download the deployment script supervisor-tools-deployment.sh. This script will:
1. delete the supervisor-tools-deployment directory in the present working directory if it exists.
2. clone the supervisor-tools-deployment repository from GitLab in the present working directory.
To execute the script, give it the execute permissions and execute it.
If the customer is not willing to put database password in environment variables file then follow these steps to configure Vault that will hold the database password
Update environment variables in the following files inside /supervisor-tools-deployment/docker/environment_variables folder.
1. Update UMM environment variables in the umm-environment-variables.env file.
2. Update Supervisor Tools Environment variables in the environment-variables.env. See also, Caller Lists Environment Variables to specify variables of the Caller Lists microservice.
Get domain/CA signed SSL certificates for SupervisorTools FQDN/CN and place the files in /root/supervisor-tools-deployment/docker/certificates folder. The file names should be server.crt and server.key.
Copy the supervisor-tools-deployment directory to the second machine for HA. Execute below command
Go to the second machine and update the environment variables where necessary.
Execute the following commands inside /root/supervisor-tools-deployment directory on both machines.
Run the following command to ensure that all the components are up and running. The screenshot below shows a sample response for a standalone non-HA deployment.

Virtual IP configuration

Repeat the following steps for all the machines in the HA cluster.

Download keepalived.sh script and place it in /root the directory.
Give execute permission and execute the script:
Configure keep.env file inside /root/keep-alived folder
Update the SERVER_URL variable in environment variables to hold Virtual IP for front-end. Go to microservices table in UMM database, replace the name of tam, prompts and eabc microservices under ip_address column with Virtual IP. Change the ports to corresponding ports exposed in docker-compose file.
Give the execute permission and execute the script on both machine.

Adding License

Browse to http://<MACHINE_IP or FQDN>/umm in your browser (FQDN will be the domain name assigned to the IP/VIP).
Click on the red warning icon on right, paste the license in the field and click save.