A simple Terraform scenario of building MariaDB Galera Cluster in Cherry Servers environment

Requirmenets:

• Terraform >= V11.*
• Compiled or builder Terraform Cherry Servers provider plugin for your OS (get it from https://github.com/cherryservers/terraform-provider-cherryservers)
• Shell.

Getting started

• Create an account and top up the credit in https://portal.cherryservers.com environment;
• Prepare an empty and clean directory for the working environment;
• Download the Terraform binary from the official website or repository;
• Download or compile the terraform provider plugin from https://github.com/cherryservers/terraform-provider-cherryservers and put it into the working dir;
• Generate either private and public keys into the working dir;
• Clone this repository for terraform scripts and templates into the working dir.

Installation

• Create the API token using the client's portal and export it into the environment variable:

export CHERRY_AUTH_TOKEN="4bdc0acb8f7af4bdc0acb8f7afe78522e6dae9b7e03b0e78522e6dae9b7e03b0"

alternitavely you can use the local variable in the script:

provider "cherryservers" {
  auth_token = "4bdc0acb8f7af4bdc0acb8f7afe78522e6dae9b7e03b0e78522e6dae9b7e03b0"
}

• Modify the variables in variables.tf and templates/galera.cnf.tmpl according your project and the needs;
• Initiate the terraform project:

terraform init

• Then review and plan your terraform project:

terraform plan

• If everything seems to be fine, apply the changes:

terraform apply

As soon the process is finished, your MariaDB Galera cluster is ready for use.