Install Apache Cassandra cluster by Ansible

Prerequisites

Make sure you have installed python3, pip and ansible on your host machine.

Install Apache Cassandra Cluster

In order to install Apache Cassandra cluster on your nodes, it is required to do the following steps.

1. Set global environment variables which are located at inventory/group_vars/all.yaml file. For example cassandra_installation_path variable indicates that where to keep manifest of docker compose file for Apache Cassandra components.

2. Create inventory/inventory.yaml file from the inventory/inventory.yaml.sample file and place the IP and user of the nodes there. You can easily create a new name and place it in inventory.yaml‍ file.

3. Then go to the roles and set the values of each variable on defaults directory of each role. For example, you can change the port, by changing the cassandra_port value located in roles/cassandra/defaults/main.yaml file.

4. Execute the following command:

ansible-playbook -i <path-to-inventory-file> cluster.yaml -v -b -kK
# e.g.
ansible-playbook -i inventory/inventory.yaml cluster.yaml -v -b -kK

Start the Cluster

ansible-playbook -i inventory/inventory.yaml start.yaml -v -b -kK

Remove Apache Cassandra

ansible-playbook -i inventory/inventory.yaml remove.yaml -v -b -kK

Jobs to be done

• Setup new cluster
• Add password vault
• Setup monitoring with Grafana and Prometheus
• Persist data of Grafana