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
CPU	2 cores vCPU (4 cores for non-HA deployment)
RAM	4 GB (8 GB for non-HA deployment)
Disk	100 GB mounted on /
NICs	1 NIC

Software Requirements

Installation Steps

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: 7575/tcp,7676/tcp , 8090/tcp, 8091/tcp and 7077/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=7575/tcp --permanent
# firewall-cmd --add-port=7676/tcp --permanent
# firewall-cmd --add-port=8090/tcp --permanent
# firewall-cmd --add-port=8091/tcp --permanent
# firewall-cmd --add-port=7077/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 two databases i:e (For UMM & ECM) in the MSSQL/MYSQL server with a suitable name and follow the application installation steps.

Installing Application

Download the deployment script ecm-deployment.sh and place it in the /root directory. This script will:
1. delete the ecm-deployment directory in the present working directory if it exists.
2. clone the ecm-deployment repository from gitlab in the present working directory.
To execute the script, give it the execute permissions and execute it.
# chmod +x ecm-deployment.sh # ./ecm-deployment.sh

Update environment variables in the following files inside /root/ecm-deployment/docker/environment_variables folder.

environment-variables.env

Name	Description
Do not change the default values for non-HA deployment. For HA, use SQL server cluster settings instead of the defaults.
`DB_URL`	Database connection url For example: jdbc:jtds:sqlserver://<MACHINE-IP or FQDN>:PORT/db_name jdbc:jtds:sqlserver://<MACHINE-IP or FQDN>:PORT/db_name;instanceName=SomeInstance jdbc:jtds:sqlserver://192.168.1.92:1433/ECM_DEV
`DB_USER`	database user
`DB_PASS`	database password
`DB_DRIVER`	JDBC driver e.g., net.sourceforge.jtds.jdbc.Driver
`DB_DIALECT`	Database dialect e.g., org.hibernate.dialect.SQLServer2008Dialect
Change the following variables for ECM services
`DATABASE_ENGINE`	sqlServer
UCCX_HRDB_PASSWORD	UCCX reporting user database password, only used of UCCX deployments
`SYNC_ENABLED`	`YES`
`SYNC_SCHEDULE`	0 0/3 * 1/1 * ? * This is cron expression for sync process scheduler.
`FEED_SCHEDULE`	0 0/1 * 1/1 * ? * This is cron expression for feed process scheduler.
`FETCH_DELAY`	`2, do not change.`
`OUTDATED_INTERVAL`	`24, this is number of hours a contact is closed in ECM with Dangling status if it is not synced`
`PCS_URL`	http://<MACHINE-IP or FQDN>:PORT For Example http://192.168.1.66:7676/PCS
`PCS_USERNAME`	database username
`PCS_PASSWORD`	database password
`REDUNDANT_DEPLOYMENT`	Decides if synchronizer deployment is redundant. Set it to "true". Holds strings "true" or "false". Default is false
`INSTANCE_NAME`	Used for differentiation of instances when deployed redundant, could be any string. It should be different on both machines.
`UCCE_SHARED_PATH_DOMAIN`	Dialer import folder machine domain
`UCCE_SHARED_PATH_USER`	Dialer import folder machine username
`UCCE_SHARED_PATH_PASSWORD`	Dialer import folder machine password
`UCCE_SHARED_PATH_IP`	Dialer import folder machine IP
Change the following variables as per your environment For UMM
`PRIM_FINESSE_IP`	Primary Finesse URL including port (if not 80 or 443) For example: http://finesse10-5.com https://finesse12-0.com:8445
`SEC_FINESSE_IP`	Secondary Finesse URL including port (if not 80 or 443) For example: http://finesse10-5.com https://finesse12-0.com:8445
`FINESSE_USER`	Finesse administrator user
`FINESSE_PASS`	Finesse administrator password
_{UMM_DB_URL}	UMM Database
_{UMM_DB_DRIVER}	UMM Database driver
_{UMM_DB_DIALECT}	UMM Database dialect
_{UMM_DB_PASS}	UMM Database password
_{UMM_DB_USER}	UMM Database username
`ADMIN_PASS`	The password of the admin user
Change the following variables for Frontend
GAT_URL	Provide the URL of Umm : http://<machine_IP>:<PORT>/<microservice> For Example https://192.168.1.25:8443/umm (microservice = umm) In the case of HA, machine_IP should be the virtual IP of HA
CISCO_TYPE	UCCE/UCCX (capital case)

Get domain/CA signed SSL certificates for ecm FQDN/CN and place the files in /root/ecm-deployment/docker/certificates folder. The file names should be server.crt and server.key.
Copy the ecm-deployment directory to the second machine for HA. Execute below command
# scp -r ecm-deployment root@machine-ip:~/
Go to the second machine and update the environment variables where necessary like INSTANCE_NAME and GAT_URL
Execute the following commands inside /root/ecm-deployment directory on both machines.
# chmod 755 install.sh # ./install.sh
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.
# docker ps

Virtual IP configuration

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

Download keepalived.sh script and place it in /root directory.
Give execute permission and execute the script:
# chmod +x keepalived.sh
# ./keepalived.sh

Configure keep.env file inside /root/keep-alived folder

Name	Description
`KEEPALIVED_UNICAST_PEERS`	IPs of the machines in the cluster. On each machine, this variable should have a list of IPs of all the other machines in the cluster. The format of the list is as below: `192.168.1.80`
`KEEPALIVED_VIRTUAL_IPS`	Virtual IP of the cluster. It should be available in the LAN. For example: 192.168.1.245
`KEEPALIVED_PRIORITY`	Priority of the node. Instance with lower number will have a higher priority. It can take any value from 1-255.
`KEEPALIVED_INTERFACE`	Name of the network interface with which your machine is connected to the network. On CentOS, `ifconfig` or `ip addr sh` will show all the network interfaces and assigned addresses.
`CLEARANCE_TIMEOUT`	Corresponds to the initial startup time of the application in seconds which is being monitored by keepalived. A nominal value of 60-120 is good enough
`KEEPALIVED_ROUTER_ID`	Do not change this value.
`SCRIPT_VAR`	This script is continuously polled after 2 seconds. Keepalived relinquishes control if this shell script returns a non-zero response. It could be either umm or ECM backend API. `pidof dockerd && wget -O index.html http://localhost:7575/`

Give the execute permission and execute the script:
# chmod +x keep-command.sh
# ./keep-command.sh

Adding License and Application Settings

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.
Once license is added, got to http://<MACHINE_IP or FQDN >/#/applicationSetting and define application settings.
Restart the services after application settings are defined using below commands inside /root/ecm-deployment/docker directory
docker-compose down docker-compose up -d